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otor-Protection-and-Monitoring-Device
User’s manual of MMPR-610Hb
microcomputer motor protection and
monitoring device
Manufactured by ZuHai Wanlida Electric co Ltd, China.
Sole Distributor in India: EAGLE TECHNOLOGY
Prepared by:
Proofed by:
Approved by:
Document No.:WLD[K]-JY-222-2010 Version No.:V2.02.01
Date of publication: October 2010
Copyright: Zhuhai Wanlida Electric Co., Ltd.
Note: Our company reserves the right to modify this manual. For any inconsistency between
the product and this manual, please contact us for relevant services.
Technical support hotline: 0756-3395398 Fax: 0756-3395500
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
2
F o r e w o r d
1. Model description
The structural type of the MMPR-610Hb series protection is Hb. MMPR-610Hb
supports three-phase current protection, also supports two-phase current protection.
When ordering, please specify.
2. Standards referenced
General specification for static protection, security and automatic
equipment, DL 478-2001
Technical code for relaying protection and security automatic equipment
GB/T 14285-2006
Protective relay and automatic equipment design rules of power equipment
GB50062-92
3. Caution
Negative sequence voltage involved in this series of protection is combined with
phase voltage, all of low voltage component depend on line voltage in compound
voltage block, if one of the three line voltages is lower than low voltage setting, low
voltage component will operates and unblock over current protection.
There are 4 standard curves of inverse protection involved in this series of protection,
if the fault current is higher than 15 times of rated current, the inverse protection
component as if the current is 15 times of rated current.
The appearance should be inspected before power is applied, to ensure that the
panel is OK without scratch, the screws are tightened, the device is grounded firmly,
all screws of plug-ins are tightened and in good contact.
When power is applied, the “Run” indicator on the panel should flash, digital tube
displays primary measuring result in cycle, protection and measuring data are
displayed on the lcd in cycle.
The terminal D25~D28 are measuring circuit of 4~20mA DC signal, when testing,
signal should be supplied by special equipment, direct apply signal of relay protection
tester is prohibited(Can be selected or not).
When the device is equipped with ungrounded system, terminal D07,D08 are zero
sequence small current input terminal, the ac current input should be limited to within
2A, the measuring current input should be limited to 6A, pay attention to the signal
input when testing to avoid large signal applied so as to avoid damage to
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
3
components.
Operating circuit inside the device is only applicable to DC power supply, if AC power
is used, it should be applied with rectifier and filter.
It is prohibited to plug or unplug the plug-ins, in order to avoid damage to the device.
It is prohibited to do digital output test when the device is running with primary
equipments.
1... Product description..................
1.1 Scope of application
The MMPR-610Hb microcomputer motor protection applies to the protection and
monitoring of medium and high-voltage motors with voltage ratings of 3kV~10kV. It can be
used for the integrated protection of large and medium motors of different capacities, and
also for the dual configuration of main protection and backup protection of ultra-large
motors.
1.2 Function and specification
1.2.1 Protective function
Prolonged start time protection(Start Time Over)
2-section definite time limit over-current protection( instantaneous over-current
protection, locked rotor protection)(Overcurrent)
Negative sequence over-current protection(NS Overcurrent)
Zero sequence over-current protection(ZS Overcurrent)
Overload protection(Overload)
Overheat protection(Motor Over Heat)
Underload protection(Underload PROT)
voltage protection(Under-voltage protection, Over-voltage protection) (Voltage
PROT)
Non-electric quantity protection(2-way)(Non-electric) (Can be selected or not)
Logical control(Joint Trip PROT)
Out-of-step protection(Synchronous motor)(Out-Of-Step PROT)
Asynchronous impact protection(Synchronous motor)(Asynchro.Impact)
1.2.2 Auxiliary function
Under-frequency unloading (Under-frequency)
Soft start function(Soft Startup)
Motor’s normal-reverse function(Nor.Rev.Func.)
Harmonic spectrum analysis
Phase display
Integral energy and impulse energy(Pulse energy can be selected or not)
Self-checking fault alarm of device
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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Remote calling and modification of protection’s settings
Fault recorder(Wave Record)
One or two ways programmable output of 4~20mA
Provide ethernet print function(manual print setting value, manual/auto print reports)
(Can be selected or not).
1.2.3 Monitoring function
Electric quantity(remote measuring quantity):voltage, current, active power, reactive
power, active energy, reactive energy, power factor, grid frequency, non-electric
quantity measuring(Can be selected or not), etc.
Remote binary quantity: the device has 15-way binary input, in which: 12-way for
external gathering, and 3-way for internal gathering.
1.2.4 Communication capability
2 standard RS485 multipoint communication ports
2 industrial ethernet ports(Can be selected or not)
Supports single, dual network communication, it is fully qualified for network
redundancy and backup
IEC-60870-5-103 ( RS485 communication mode ) ,IEC-60870-5-104 ( industrial
ethernet mode)standard communication protocol(Can be selected or not).
1.2.5 GPS clock synchronization function(Can be selected or not)
The device is able to receive GPS clock minute synchronization (or second
synchronization) through RS485 differentiate voltage, and it can be done with
monitoring system to accomplish GPS precise clock synchronization.
1.2.6 Device specifications
32-bit DSP microprocessor
Real-time multi-task operating system and C++ program techniques, realizing online
programming
Double-screen display (LCD Chinese display and nixie tube display), easy for
inspection
One or two ways 4~20mA DC quantity output, which can be set flexibly as any
corresponding electric quantity (such as current, voltage, power, frequency, etc.)
Collecting 4 ways of 4~20mA DC quantities for measurement of non-electric
quantities, such as temperature, pressure, and realizing online monitoring(Can be
selected or not)
Having the electric energy quality analysis function and perfect harmonic analysis
function
Integrating perfect metering functions
Excellent hardware interchangeability, easy user maintenance and reduced quantity
of spare parts
Protection output relays can be configured flexibly for user convenience
With remote/local changeover switch and trip/closing buttons, reducing the number of
elements on the board/cabinet panel and simplifying wiring
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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Using a 6U, 19/3” standard enclosure in a rear plug-in structure; the device can be
installed in site on a switchboard or combined in a centralized manner
1.2.7 Main technical specifications
Rated data
Power supply: DC/AC 86~265V
Operating voltage: DC 220V or DC 110V
AC voltage: 1 0 0 / 3V or 100V
AC current: 5A or 1A
Frequency: 50Hz
Power consumption
DC circuit: <10W(normal operation);<15W(protection operation).
AC voltage circuit:<0.5VA/ phase
AC current circuit:<1VA/ phase(In=5A);<0.5VA/ phase(In=1A).
Overload capability
AC voltage circuit: 1.2Un, continuous operation
Current measuring circuit: 1.2Un, continuous operation
Protective current circuit: 2In, continuous operation
10In, allowing 10s
40In, allowing 1s
Range and error of setting value
Maximum range of setting value:
Voltage element: 1V~120V
Current element: 0.1In~20In
Frequency: 45.00Hz~55.00Hz
Timing element: 0.00S~100.00s
Error of setting value:
Current and voltage setting value: ≤±3% of setting value
Frequency setting value: ≤±0.02Hz
Slip setting value: ≤±5% of setting value
Angle setting value: ≤±2°
Whole-group operation time (including relay’s intrinsic time):
Intrinsic operating time of current instantaneous over-current protection:
not greater than 40ms at 1.5 times the setting value
Intrinsic operating time of Difference instantaneous over-current
protection: not greater than 30ms at 2 times the setting value
Measuring accuracy
AC current: Class 0.2
AC voltage: Class 0.2
4~20mA DC quantity input: ≤±1%
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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Power: Class 0.5
Integral energy: Class 1 (active), Class 2 (reactive)
Frequency: ≤±0.02Hz
SOE resolution: ≤2ms
Impulse width of impulse quantity: ≥10ms
4~20mA DC quantity output: ≤±1%
Capacity of trip/closing output contact
Can be connected to DC 250V, 8A for prolonged periods.
GPS clock synchronization error
clock synchronization error≤2ms
Environmental conditions
Ambient temperature:
Operating:-20℃~+55℃。
Storage:-25℃~+70℃, rainproof and snow-proof rooms with relative humidity not
greater than 80%, ambient air free of acid, alkaline or other corrosive and explosive gas;
no excitation quality is applied at the limits, the device shall not have any irreversible
change; after temperature restoration, the device shall operate properly.
Relative humidity: The average relative humidity of the most humid month shall not
be greater than 90%, the average minimum temperature of this month not lower than 25℃
and there shall be no surface condensation; at the highest temperature of +40℃, the
average maximum humidity shall not exceed 50%.
Atmospheric pressure: 80kPa~110kPa (below relative altitude of 2wc)
1.2.8 Hardware structure
The device uses a 6U, 19/3” standard enclosure, with aluminum alloy casing and
installed by overall embedding. The display panel is mounted in the front, and the other
plug-in modules are rear mounted. From the rear view, the power, I/O, CPU and AC
plug-in modules are from the left to the right.
External dimensions and boring diagram
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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Structural and dimensional diagram Boring diagram for installation
Devices fabricated on-screen steps: first release on-screen stents unfastening
screws, remove the stents; installed the device on the screen from the front and push until
close to the fixed plate; install the stent 2, and then stent 1, and then use fastening screw
to insertion hole from rear of stent1, and then screwed into stent 2 and tighten screw; the
stents from up and down are installed in the same way; use grounding screws to connect
grounding line.
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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2... Function of device................
2.1 Prolonged start time protection(Start Time Over)
When the maximum phase current of the motor rises from zero to above 10% of Ie (Ie is
the motor’s rated current, the same below), the device begins to time, until the current drops to
120% of Ie, this time is known as the motor’s start time (as Tstart). When the start time Tstart
exceeds setting value of the motor’s start time, the protection will operate on the trip. After the
end of starting, the motor’s prolonged start time protection will be switched off. During the
motor’s starting process, the mark “motor starting” is displayed in the lowest line on the LCD.
The value of current Ia can be seen in the report during 30s of motor’s starting.
The motor starting process is shown in Figure 2-1
Figure 2-1 Schematic diagram of motor starting process
2.2 2-section definite time limit over-current protection(Overcurrent)
The device has 2-section definite time limit over-current protection, instantaneous
over-current protection and locked rotor protection, switched On/Off by control word separately,
used to protect the motor from inter-phase short-circuit.
Instantaneous over-current protection is provided. The instantaneous over-current
protection Section I setting value 1 is input; after the end of starting, the instantaneous
over-current protection Section I setting value 2 is input. Thus, mis-operation due to excessive
starting current during the starting process can be avoided effectively and guarantee a high
level of sensitivity during the protection operation.
The locked rotor protection will be switched off automatically during the motor’s starting
process.
The operation logic diagram of the instantaneous over-current protection is shown in
Figure 2-2. The operation logic diagram of the locked rotor is the same as instantaneous
over-current protection.
120%Ie
10%
Tstart
120%Ie
10%
Tstart
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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Figure 2-2 Operation logic diagram of instantaneous over-current protection
2.3 Negative sequence over-current protection(NS Overcurrent)
Where there is great asymmetry in the 3 phase currents of the motor, there will be a high
negative sequence current, which will produce a current of double the line frequency in the
rotor, so that the rotor’s additional heat increases dramatically, endangering the safe operation
of the motor.
The device has negative sequence definite time limit over-current protection and negative
sequence inverse time limit over-current protection, providing protection to abnormal
conditions, such as opposite phase, loss-of-phase, inter-turn short-circuit and serious voltage
asymmetry, etc.
The operation logic diagram of the negative sequence definite time limit over-current
protection is shown in Figure 2-3.
Figure 2-3 Operation logic diagram of negative sequence definite time limit over-current
protection
To avoid any protection mis-operation arising from the asynchronism of the 3 phases
upon closing of the circuit breaker, the set delay should not be less than 0.2s.
As stipulated by the IEC (IEC255-4), the following 4 standard characteristic equations of
the inverse time limit component are usually used:
General inverse time limit: (1)
Unusual inverse time limit: (2)
Extreme inverse time limit: (3)
Long inverse time limit: (4)
Where: Ip is the setting value of the negative sequence inverse time limit over-current
starting current; τp is the negative sequence inverse time limit over-current time constant,
Instantaneous
protection on/off
Negative sequence
over-current on/off I2>negative sequence
settings Protection output
sequence T
p
pIIt
1)/(
802
p
pIIt
1)/(
120
p
pIIt
1)/(
5.13
p
pIIt
1)/(
14.002.0
Ia≥Instantaneous
settings Ib≥Instantaneous
settings Ic≥Instantaneous
settings
Protection output
sequence T
≥
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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within the range of 0~1s; the inverse time limit characteristic can be selected by the setting
value of the negative sequence inverse time limit over-current curve (1: general inverse time
limit; 2: unusual inverse time limit; 3: extreme inverse time limit; 4: long inverse time limit).
2.4 Zero sequence over-current protection(ZS Overcurrent)
The device has the zero sequence over-current protection function, selecting trip or alarm
by control word. The zero sequence current I0 is from the special zero sequence transformer.
For ungrounded system, if the grounding fault occurs in the system, the zero sequence current
at grounding fault point is almost capacitance current, which scope value is very low. The
selectivity is hardly guaranteed that using zero sequence over-current relay to protect from
grounding fault. The device uploads scope value and direction of zero-sequence current by
communication and low current grounding line selection is carried on by position machine.
The operation logic diagram of the zero sequence over-current protection is shown in
Figure 2-4.
Note: When the zero sequence over-current trip is switched on, the zero sequence
over-current alarm will be switched off automatically.
Figure 2-4 Operation logic diagram of zero sequence over-current protection
2.5 Overload protection(Overload)
The device has the overload protection function, selecting trip or alarm by control word.
Overload protection is blocked during motor’s starting process. The operation logic diagram of
the overload protection is shown in Figure 2-5.
Note: When the overload trip is switched on, the overload alarm is switched off
automatically.
Figure 2-5 Operation logic diagram of overload protection
2.6 Overheat protection(Motor Over Heat)
Overheat is an important cause of motor damage, especially rotor overheat due to
negative sequence current. According to the ANSI/UL 2111-2002 Safety standard for motor
Zero-sequence
over-current on/off I0>zero-sequence
settings
Protection output
sequence
T
≥
Ia1>overload settings
Ib1>overload settings
Ic1>overload settings&
After motor’s start
Overload
protection on/off
TProtection output
sequence
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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overheat protection, the judgment criterion of overheat protection operation is:
Where: t —— operating time of protection (s);
τ1—motor’s overheat time constant (s), corresponding to motor’s overload
capability;
I1—positive sequence component of motor’s actual operating current (A);
I2—negative sequence component of motor’s actual operating current (A);
Ie—overheat protection starting current setting value (value of motor’s actual
operating rated current reflected to the CT secondary side);
K1—motor’s positive sequence heating factor. During the starting process, it
can be set within 0~1 with a frequency of 0.01 to evade starting. After the
end of starting, it will turn to 1 automatically;
K2—motor’s negative sequence heating factor; it can be set within 0~10 with a
frequency of 0.01, usually being 6.
The overheat protection has overheat alarm and overheat trip, and has separate control
words for switching On/Off.
The overheat alarm is an anticipating signal that can be set within 30%~100% of the trip
value with a frequency of 1%. When the motor trips due to overheat, the device’s output relay
will remain at the closed state, and the device will radiate heat at the set radiating time
constant until the motor reaches 40% of the trip value, then the output relay will return,
allowing the motor to restart. When emergency starting is required, press the “Reset” key of
the device or enter the [Signal Reset] menu for reset, so that the output relay returns.
2.7 Underload protection(Underload PROT)
The device has underload protection function, selecting trip or alarm by control word.
Underload protection is blocked during the motor’s start process. The operation logic diagram
of the underload protection is shown in Figure 2-6.
Note: When the underload trip is switched on, the underload alarm is switched off
automatically.
Figure 2-6 Operation logic diagram of underload protection
2.8 Voltage protection(Voltage PROT)
2.8.1 Under-voltage protection(Undervoltage PRO)
The device compares the maximum line voltage value. If it is less than the setting
22
22
2
e11
1
05.1)/()/(
eIIKIIKt
Circuit breaker at closed position
Ia≤Underload settings
Ib≤Underload settings
Ic≤Underload settings
&
&
Underload
on/off
Protection
output
sequence
T
Motor’s start over
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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value and reaches the setting delay, the protection operates on the trip. The protection is
via switch position block and PT failure block. The operation logic diagram of protection
is shown in Figure 2-7.
Figure 2-7 Operation logic diagram of under-voltage protection
To avoid any potential protection mis-operation arising from closing of the circuit breaker,
the set delay should not be less than 0.2s.
2.8.2 Over-voltage protection(Overvoltage PROT)
When any line voltage of the bus is greater than the over-voltage protection setting value,
the setting delay is reached; the over-voltage protection will operate on trip. The protection is
blocked at switch position. The operation logic diagram of the over-voltage protection is shown
in Figure 2-8.
Figure 2-8 Operation logic diagram of over-voltage protection
2.9 Logical control protection(Joint Trip PROT)
The device has the 4-way logical control protection function, switched On/Off by control
word. When a control word exits, the corresponding input quantity may be used as an ordinary
input.
2.10 Non-electric quantity protection(Non-electric) (Can be selected or not)
The device has the 2-way non-electric quantity protection function, switched On/Off by
control word, operating on the trip.
2.11 PT failure alarm(PT Failure Alarm)
The judgment criterion of PT failure depends on the wiring mode. When the PT failure
block function is switched on, if PT failure occurs, the under-voltage protection, compound
voltage component and current directional component will be blocked. The judgment criterion
of PT failure is as follows:
V-V wiring mode
The current value of the phase with the maximum current is less than the maximum load
&
Circuit breaker at closed position
Umax<Uddy
PT failure PT failure block &
Under-voltage
protection on/off Protection output
sequence
T
&
Circuit breaker at
closed position
Umax〉Ugdy
Over-voltage on/off/ Protection output
sequenceT
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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current value (using the setting value of the overload current).
① Maximum phase-phase voltage < 30V, and current of any phase > 0.1Ie;
② Negative sequence voltage > 8V
If any of the above conditions is met, the delay (settable) will report PT failure, and will
return when failure disappears.
Y-Y wiring mode
The current value of the phase with the maximum current is less than the maximum load
current (using the setting value of the overload current).
① When |Ua+Ub+Uc| >7V, and the modulus difference between the maximum and minimum
line voltage is greater than 18V, it is thought that one or two phases have PT failure;
② When |Ua+Ub+Uc| > 7V, and the minimum line voltage is less than 18V, used to detect 2-phase
failure.
③ When MAX{Uab, Ubc, Uca}<7V, and the current of any phase > 0.1Ie, it is regarded as PT
3-phase failure.
If any of the above conditions is met, the delay (settable) will report PT failure, and will
return when failure disappears.
Figure 2-9 Operation logic diagram of PT failure
2.12 CT failure alarm(CT Failure Alarm)
When the CT failure block function is switched on, if CT failure occurs, the device sends
alarm signal.
When the current value of any phase exceeds the setting value of the overload protection
current, CT failure detection will be disabled.
Protection CT 3-phase wiring
During normal operation, the sum of the 3 phase currents at any side is zero (less than
PT failure operation
information
&
TPT
PT failure on/off
|MaxU-MinU|>18V
&MinU<18V
&
MaxU<7V MaxU=Max(Uab,Ubc,Uca)MinU=Min(Uab,Ubc,Uca)
&
MaxU<30V
U2>8V
≥
&V-V wiring
Max{Ia,Ib,Ic}>0.1*Ie
≥
Max{Ia,Ib,Ic}<Igfh
&
≥
&
Max{Ia,Ib,Ic}>0.1*Ie
7V|cUbUaU|
7V|cUbUaU|
PT
failu
re c
om
po
nen
t
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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0.1Ie). In case of CT failure in any phase, the sum of the 3 phase currents is not zero (greater
than 0.1Ie). To differentiate from ground fault, the following judgment is required:
①In the 3 phase currents, the current value of the phase with the minimum current is zero (less
than 0.1Ie).
②The value of the phase with the maximum current is not zero (greater than 0.1Ie), and its
current value is less than the setting value of the overload current.
Protection CT 2-phase wiring
The current of one phase is greater than 0.15Ie and less than the setting value of overload
current , and current of another phase is less than 0.08 Ie, then, it is judged as CT failure.
2.13 Under-frequency unloading protection(Under-frequency)
The frequency is derived from software calculation. Using the frequency of Uab, the
under-frequency unloading protection is blocked by under-voltage block, under-current
block or slip block, in which slip block can be switched On/Off. The operation logic of
under-frequency unloading is shown in Figure 2-10.
Figure 2-10 Operation logic of under-frequency unloading
2.14 Synchronous motor protection(Synchrodyne)
Out-of-step protection(Out-Of-Step PROT)
The synchronous motor is one running at a certain speed determined by its number of
poles and AC frequency. This speed is known as the synchronous speed, which is determined
by the grid frequency and number of pole pairs:
Namely, m i n )/(60
rP
fn
f-grid frequency; P-number of pole pairs
The synchronous motor’s key function is conversion between mechanical energy and
constant frequency AC power.
Characteristics of synchronous motor: The speed does not vary with the load and voltage,
and is related to the frequency only, featuring high stability. When the motor speed cannot
reach the synchronous speed determined by the system frequency due to excessive external
load or reduced load-carrying capacity arising from the motor’s internal fault, the synchronous
motor is “out of step”.
The judgment criterion of the synchronous motor out-of-step protection is the protection
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
15
IDZ
t
current relative to the setting value IDZ.
When the circuit breaker is closed, out-of-step occurs and the out-of-step protection
setting delay is reached, the out-of-step operation will operate on the trip. In case of the current
disappears, the out-of-step protection will return.
Figure 2-11 Schematic diagram of out-of-step oscillating current
Asynchronous impact protection(Asynchro.Impact)
The asynchronous impact protection of this device is based on the reverse power
protection principle. When the reverse power is greater than the setting value of asynchronous
impact protection and the setting delay is reached, the asynchronous impact protection will
operate. The operation logic diagram of the asynchronous impact protection is shown in Figure
2-12. The reverse power (Pn) is calculated from the protection current and voltage.
Figure 2-12 Operation logic diagram of asynchronous impact protection
Note: synchronous motor loss-of-excitation protection
This device realizes the synchronous motor’s loss-of-excitation protection via the contact
by which the logical control protection is connected to the loss-of-excitation relay.
2.15 Normal-reverse function of motor(Nor.Rev.Func.)
For the positive or negative rotate motor, the protection device provides positive and
negative rotate function.
After the normal-reverse function switched on, the device judges motor’s
normal-reverse on binary input. Select phase changing mode of current according to
on-the-spot phase changing. The device can automatically adjust the calculation of
Asynchronous impact On/Off Reverse power >asynchronous
impact setting value
Protection output
sequence
T
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
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negative sequence current and power to adapt the motor’s normal-reverse.(Note: When
the motor is at phase changing state, the motor should be off. It is regarded as the motor
stops when MAX{IA、IB、IC}<0.1Ie, it can change phases, otherwise it will be regarded as
the last state by default.
2.16 Soft starting function(Soft Startup)
The device has soft starting function, which is suitable for the self-starting control of
large-scale asynchronous motor.
Figure 2-13 Operation logic diagram of soft starting
2.17 Start current effective value record(MotorStart Value)
During motor’s start process, record the effective value of protection current Ia1 for
reference of analysis of motor’s start process. The device records 150 effective values of
protection current Ia1, which is at intervals to record for 200ms. It can be looked up in the
report menu.
2.18 Impulse energy/integral energy
Impulse energy(Can be selected or not)
The impulse circuit of the device uses an internal power supply; passive energy impulses
are input from the outside; and accumulation of impulse energy is finished by the software.
Integral energy
The software accumulates active and reactive powers into active and reactive energy in
real time.
Former current >
Irqdset
Current < Irqdset
Circuit breaker
closure
QF2 open
Start time
Pattern 1
&
&
Former current >
Irqdset
Current < Irqdset
Start time
≥
&
Pattern 2
&
&
&
Send command of
closing B29-B30
outputs,return
after 500ms, check
QF2 position after
3s.
QF2
failure,
QF trip
QF2 closure
r e t u r n
successfully
Soft start on/off
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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2.19 Fault recorder(Wave Record)
See the communication coding table for the protection voltage and current waveform data
collected by the recording unit.
3... Setting of parameters and setting values of the device
3.1 System parameters
Parameter Range Description
Settings of setting value zone number
Setting value zone
number(Setting Zone
No.)
0-7 Set step:1(factory default 0)
Communication settings
RS485
address(RS485
Address)
1-99 Set step:1(factory default 1)
RS485 baud
rate(RS485 Baudrate) 0-5
Set step:1(factory default 1)
0:2.4KB;1:4.8KB;2:9.6KB;3:19.2KB;4:
38.4KB;5:115.2KB;
Pulse confirmation
time(Pulse Input Time) 1-1000ms Set step:1(factory default 1)
IP address(IP Address) It has four
sections. The
range of
every section
is
0-255
One section set step:1(factory default
192.168.6.117)
Subnet mask (Subnet
Mask)
One section set step:1(factory default
255.255.255.0)
KW default value(KW
Default) One section set step:1(factory default 8.168.6.1)
Setting of basic parameters(B.Parameters)
Secondary value of rated
current (In) ( Rating
Current)
0-1 Set step:1(factory default 0)00:5A;01:1A
PT transformation ratio(PT Ratio)
1-1500 Set step:1(factory default 1)
CT transformation ratio(CT Ratio)
1-5000 Set step:1(factory default 1)
CT wiring mode(CT Wiring Mode)
0-1 Set step:1(factory default 0)00:3-phase;01:
2-phase
PT wiring mode(PT Wiring Mode)
0-1 Set step:1(factory default 0)00:Y-Y;01:V-V
Selection of harmonic
monitoring 0-12
For harmonic calculation, select the corresponding
reference quantity:
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Parameter Range Description
channel(Harmonic
Channel)
0:exit from harmonic calculation function
1:Ia,2:Ib,3:Ic,4:I0,5:IA,6:IB,7:IC,8:Ua,
9:Ub,10:Uc,11:U0
Fault recorder(Wave
Record) 1/0 1/0:On/Off (factory default Off)
Neutral point
grounding mode(Earth
Mode)
0-1
00:Ungrounded
01:Major grounding
(It is provided in the unground method if there is no
special instruction.)
Out-of-step
cycle(Out-Of-Step CY) 0.50-100.00s Set step:0.01s(factory default 10s)
FC block delay(FC Block
Delay) 0-5000ms Set step:1 ms (factory default 200ms)
D/A channel setting(D/A Setting)
DA1~2 channel
selection 0-14
Select DA1~2 to output corresponding reference quantities:
0:No D/A output
1:IA,2:IB,3:IC ,4:Ua,5:Ub,6:Uc,7:Uab,8:Ubc,
9:Uca,10:P,11:Q
Voltage reference quantity:0—120V responding to
4mA—20mA.
Rating 5A:
Current reference quantity: 0—6A responding to 4mA—20mA,
Power reference quantity:0—1000W responding to
4mA—20mA.
Rating 1A:
Current reference quantity: 0—1.2A responding to
4mA—20mA,
Power reference quantity:0—200W responding to
4mA—20mA.
DA1~2 adjustment
factor 0.5-1.5 Adjust D/A channel 1~2(4-20mA)parameters
Pulse energy setting
Pulse 1 0-4294967295 Set step: 1
Press “confirm” for reservation, and revert to last
menu.
Pulse 2 0-4294967295
Pulse 3 0-4294967295
Pulse 4 0-4294967295
Positive active energy 0-4294967.29
5kWh
Set step:0.001
Press “confirm” for reservation, and revert to last
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Parameter Range Description
Positive reactive
energy
0-4294967.29
5kvh
menu.
Negative active
energy
0-4294967.29
5kWh
Negative reactive
energy
0-4294967.29
5 kvh
Opening Count Clearing (Trip Times Clear)
Press “confirm” for reservation, and revert to last menu.
Channel factor setting(Channel Coef.)
Channel data 1~12 0.5-5
Set step:0.001(factory default 1)
Channel data 1-12 are corresponded to the
channel factor of analog quantity 1-12.
Channel data 13~14 0.5-5
Set step:0.001(factory default 1)
Channel data 13,14 are corresponded to channel
factor of DC quantity 1,2.
3.2 Setting value list
Parameter Range Description
Pro
tectio
n O
n/O
ff w
ord
Prolonged start
time(Start Time
Over)
1/0 1/0: On/Off (factory default Off)
Instantaneous
over-current
protection(Inst.PRO
T)
1/0 1/0: On/Off (factory default Off)
Locked rotor
protection(Locked-r
otor)
1/0 1/0: On/Off (factory default Off)
Negative sequence
definite time
over-current(NS
OC DT)
1/0 1/0: On/Off (factory default Off)
Negative sequence
inverse time
over-current(NS
OC IT)
1/0 1/0: On/Off (factory default Off)
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Parameter Range Description
Zero sequence
over-current
alarm(ZS OC
Alarm)
1/0 1/0: On/Off (factory default Off)
Zero sequence
over-current trip(ZS
OC Trip)
1/0 1/0: On/Off (factory default Off)
Overload
alarm(Overload
Alarm)
1/0 1/0: On/Off (factory default Off)
Overload
trip(Overload Trip) 1/0 1/0: On/Off (factory default Off)
Motor overheat
alarm(Motor OH
Alarm)
1/0 1/0: On/Off (factory default Off)
Motor overheat
trip(Motor OH Trip) 1/0 1/0: On/Off (factory default Off)
Underload
alarm(Underload
Alarm)
1/0 1/0: On/Off (factory default Off)
Underload
trip(Underload Trip) 1/0 1/0: On/Off (factory default Off)
Under voltage
protection(Undervol
tage PRO)
1/0 1/0: On/Off (factory default Off)
Over voltage
protection(Overvolt
age PROT)
1/0 1/0: On/Off (factory default Off)
Logic control 1
protection(Joint Trip
1)
1/0 1/0: On/Off (factory default Off)
Logic control 2
protection(Joint Trip
2)
1/0 1/0: On/Off (factory default Off)
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Parameter Range Description
Logic control 3
protection(Joint Trip
3)
1/0 1/0: On/Off (factory default Off)
Logic control 4
protection(Joint Trip
4)
1/0 1/0: On/Off (factory default Off)
Non-electric
quantity 1
protection(Non-elec
tric 1)
1/0 1/0: On/Off (factory default Off)
Non-electric
quantity 2
protection(Non-elec
tric 2)
1/0 1/0: On/Off (factory default Off)
PT failure alarm(PT
Failure Alarm) 1/0 1/0: On/Off (factory default Off)
PT failure block(PT
Failure Lock) 1/0 1/0: On/Off (factory default Off)
CT failure alarm(CT
Failure Alarm) 1/0 1/0: On/Off (factory default Off)
FC block alarm(FC
Lock Alarm) 1/0 1/0: On/Off (factory default Off)
Out-of-step
protection(Out-Of-S
tep PROT)
1/0 1/0: On/Off (factory default Off)
Asynchronous
impact
protection(Asynchr
o.Impact)
1/0 1/0: On/Off (factory default Off)
Under-frequency
unloading
protection(Under-fr
equency)
1/0 1/0: On/Off (factory default Off)
Slip block(Slip
Lock) 1/0 1/0: On/Off (factory default Off)
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Parameter Range Description
Soft start(Soft
Startup) 1/0 1/0: On/Off (factory default Off)
Normal-reverse
function
(Nor.Rev.Func.)
1/0 1/0: On/Off (factory default Off)
Prolonged start time protection of motor(Start Time Over)
Motor rated current(Ie)
(Rated Current) (0.1-1.2)In Set step:0.01A(factory default 1.0In)
Motor start time(Startup
Time) 0.0-1000.0s Set step:0.1s(factory default 100s)
Motor’s over-current protection(Overcurrent)
Current of instantaneous
over-current 1
(instantaneous
over-current at start)
(Inst.PROT 1)
(0.1-20)In Set step:0.01A(factory default 20In)
Current of instantaneous
over-current 2
(instantaneous
over-current after start)
(Inst.PROT 2)
(0.1-20)In Set step:0.01A(factory default 20In)
Instantaneous
over-current
delay(Inst.Time)
0.00-100.00s Set step:0.01s(factory default 100s)
Current of locked rotor
protection(Locked-rotor C) (0.1-20)In Set step:0.01A(factory default 20In)
Locked rotor protection
delay(Locked-rotor T) 0.00-100.00s Set step:0.01s(factory default 100s)
Negative sequence over-current protection(NS Overcurrent)
Negative sequence definite
time limit over-current(NS
DT Current)
(0.1-20)In Set step:0.01A(factory default 2In)
Negative sequence definite
time limit delay(NS DT
Time)
0.20-100.00s Set step:0.01s(factory default 100s)
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Parameter Range Description
Negative sequence inverse
time limit curve(NS IT
Curve)
1-4 Set step:1(factory default 1)
Negative sequence inverse
time limit constant(NS IT
Constant)
0.00-1.00s Set step:0.01s (factory default 1s)
Inverse time limit starting
current(NS IT Start C) (0.1-2)In Set step:0.01A(factory default 1In)
Zero sequence over-current protection(ZS Overcurrent)
Current of zero sequence
over-current(ZS OC Value) 0.00-2.00A Set step:0.01A(factory default 2A)
Zero sequence over-current
delay(ZS OC Time) 0.00-100.00s Set step:0.01s(factory default 100s)
Overload protection(Overload)
Overload current(Overload
Current) (0.1-20)In Set step:0.01A(factory default 20In)
Overload delay(Overload
Time) 0.00-100.00s Set step:0.01s(factory default 100s)
Overheat protection(Motor Over Heat)
Heating time
constant(Heating T) 1.0-1000.0s Set step:0.1s(factory default 100s)
Radiating time
constant(Diffusion T) 0.10-10.00 Set step:0.01(factory default 10)
K1 0-1 Set step:0.01(factory default 1)
K2 0-10 Set step:0.01s(factory default 6)
Overheat alarm
coefficient(Alarm Coeff.) 50.00-100.00% Set step:0.01%( factory default 80%)
Underload protection(Underload PROT)
Underload
current(Underload C) (0.1-2)In Set step:0.01A(factory default 0.1In)
Underload
delay(Underload Time) 0.50-100.00s Set step:0.01s(factory default 100s)
Voltage protection(Voltage PROT)
Under-voltage setting
value(Undervolt. Value) 1.00-100.00V
Set step:0.01V(factory default 90V)
Note: set by inter-phase voltage
Under-voltage 0.20-100.00s Set step:0.01s(factory default 100s)
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Parameter Range Description
delay(Undervolt. Time)
Over-voltage setting
value(Overvolt. Value) 100.00-120.00V
Set step:0.01V(factory default 120V)
Note: set by inter-phase voltage
Over-voltage
delay(Overvolt. Time) 0.00-100.00s Set step:0.01s(factory default 100s)
Logical control protection(Joint Trip PROT)
Logical control 1
delay(JointTrip 1 Time) 0.00-100.00s Set step:0.01s(factory default 0s)
Logical control 2
delay(JointTrip 2 Time) 0.00-100.00s Set step:0.01s(factory default 0s)
Logical control 3
delay(JointTrip 3 Time) 0.00-100.00s Set step:0.01s(factory default 0s)
Logical control 4
delay(JointTrip 4 Time) 0.00-100.00s Set step:0.01s(factory default 0s)
Non-electric quantity protection(Non-electric)
Non-electric quantity 1 setting value (Non-elec.1
Value)
4.00-20.00mA Set step:0.01mA(factory default 20mA)
Non-electric quantity 1 delay(Non-elec.1 Time)
0.00-100.00s Set step:0.01s(factory default 0s)
Non-electric quantity 2 setting value(Non-elec.2
Value)
4.00-20.00mA Set step:0.01mA(factory default 20mA)
Non-electric quantity 2 delay(Non-elec.2 Time)
0.00-100.00s Set step:0.01s(factory default 0s)
Failure and FC block(PT/CT&FC Lock)
PT failure delay(PT Failure Time)
0.50-10.00s Set step:0.01s(factory default 10s)
CT failure delay(CT Failure Time)
0.50-10.00s Set step:0.01s(factory default 10s)
FC breaking current(FC Current)
(0.1-20)In Set step:0.01A(factory default 20In)
Synchronizer protection(Synchrodyne)
Out-of-step protection
current(Out-Of-Step C) (0.1-20)In Set step:0.01A(factory default 20In)
Out-of-step protection
delay(Out-Of-Step Time) 1.00-100.00s Set step:0.01s(factory default 100s)
Setting value of
asynchronous
impact(Asynchr.Impact)
1.0~1000.0W Set step:0.1W(factory default 1000W)
Asynchronous impact
delay(Asynchr.Imp.Time) 0.00-100.00s Set step:0.01s(factory default 100s)
Under-frequency unloading(Under-frequency)
Under-frequency 45.00-50.00Hz Set step:0.01Hz(factory default 48Hz)
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Parameter Range Description
unloading setting
value(Under-freq.Value)
Under-frequency
unloading delay setting
value (Under-freq.Time)
0.50-100.00s Set step:0.01s(factory default 100s)
Under-frequency
unloading low current
block setting value(Low
Current Lock)
0.2-5A Set step:0.01A(factory default In)
Under-frequency
unloading under-voltage
block setting value
(Undervolt. Lock)
60.00-90.00V Set step:0.01V(factory default 90V)
Under-frequency
unloading slip block
setting value (df/dt Lock)
0.5-8.00Hz/s Set step:0.01Hz/s(factory default 1Hz/s)
Soft starting function(Soft Startup)
Soft start
current(Starting Current) 0.5-20A Set step:0.01A(factory default 20A)
Soft start
method(Starting Mode) 1-2 Select method 1 or 2
Motor’s normal-reverse function( Nor.Rev.Func.)
Current commutating
method (Commutation
Mode)
(1-3)
1:AB commutating;2:BC commutating;3:
CA commutating
Set step:1(factory default 1)
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4... Description of binary input, output and analog quantity................................................ 4.1 Monitoring of analog quantities
Analog quantities can be monitored under the [Protection Data Display], [Measured Data
Display] and [Impulse Energy] menus in the [State Display] menu, press the ““, ““ keys to
flip over. The factory precision of the device has been calibrated. The protection current is
calibrated at double the rated current and the measuring current at a single rated current. The
list is as follows:
Note: for protection CT 3-phase, PT Y-Y wiring; due to the under-frequency unloading
protection of this device, the frequency display is put in the protection data.
Analog quantity
terminal Analog quantity name Test method
Terminals D01,D02 Protective Phase A
current (Ia)
Add double the rating, displayed deviation
not exceeding 1%
Terminals D03,D04 Protective Phase B
current (Ib)
Add double the rating, displayed deviation
not exceeding 1%
Terminals D05,D06 Protective Phase C
current (Ic)
Add double the rating, displayed deviation
not exceeding 1%
Terminals D07,D08 Zero sequence current
at high voltage side (I0)
Add 1A, displayed deviation not exceeding
0.2%
Terminals D09,D10 Measured Phase A
current (IA)
Add a single rating, displayed deviation not
exceeding 0.2%
Terminals D11,D12 Measured Phase B
current (IB)
Add a single rating, displayed deviation not
exceeding 0.2%
Terminals D13,D14 Measured Phase C
current (IC)
Add a single rating, displayed deviation not
exceeding 0.2%
Terminals D15,D16 Phase A voltage (Ua) Add 50V, displayed deviation not exceeding
0.5%
Terminals D15,D16 System frequency F Add 50V 50Hz, displayed deviation not
exceeding ±0.02Hz
Terminals D17,D18 Phase B voltage (Ub) Add 50V, displayed deviation not exceeding
0.5%
Terminals D19,D20 Phase C voltage (Uc) Add 50V, displayed deviation not exceeding
0.5%
Terminals D21,D22 Zero sequence voltage
(U0)
Add 50V, displayed deviation not exceeding
0.5%
Terminals D25,D26 4~20mA DC Input 1 Add 10mA, displayed deviation not
exceeding 3%
Terminals D27,D28 4~20mA DC Input 2 Add 10mA, displayed deviation not
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Analog quantity
terminal Analog quantity name Test method
exceeding 3%
Terminals D09、D10;
D13,D14 add current by
polarity;D15,D16;
D17,D18;D19,D20 add
voltage by polarity
3-phase active power
Add a single rating to current and 100V to
line voltage
Alter phase angle, displayed power deviation
not exceeding 0.5%
Terminals D09,D10;
D13,D14 add current by
polarity;D15,D16;
D17,D18;D19,D20 add
voltage by polarity
3-phase reactive power
Add a single rating to current and 100V to
line voltage
Alter phase angle, displayed power deviation
not exceeding 2%
Terminals C12 and
C16(common terminal of
impulse +24V)
Impulse 1(MC1) Connect each point once, add 1 to the count
Terminals C13 and
C16(common terminal of
impulse +24V)
Impulse 2(MC2) Connect each point once, add 1 to the count
Terminals C14 and
C16(common terminal of
impulse +24V)
Impulse 3(MC3) Connect each point once, add 1 to the count
Terminals C15 and
C16(common terminal of
impulse +24V)
Impulse 4(MC4) Connect each point once, add 1 to the count
4.2 Monitoring of binary input
Binary input can be monitored under the [Binary input] menu in the [State Display] menu,
press the ““, ““ keys to flip over.
Binary input
terminal
Binary input name Test method
B01 Common terminal of binary
input -
(Should be connected to
External power supply of 220V or 110V
DC can be applied, connect the
negative terminal to terminal B01,
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DC220V or DC110V
negative terminal of external
power supply)
positive terminal to terminal B02~B13,
in [Binary input] menu in the [State
Display], the status of binary input can
be seen.
The device also has a 24V DC
supply, if it is used, terminal B14 can be
connected to terminal B02~B13, in
[Binary input] menu in the [State
Display], the status of binary input can
be seen.
The binary input “input by manual
trip”, “input by manual closing”,
“operating circuit” is gathered from
operating circuit , which can monitor the
state of operating circuit. In the test,
negative controlling power is connected
to terminal A19(-WC), and positive
controlling power to A15 ( manual
closing input), A17(manual trip input).
Manual closing/ manual trip state can
be seen in the【input quantity】menu.
The positive controlling power is
connected to terminal A20(+WC) ,
negative controlling power to trip
position monitoring terminal A13 or
closing position monitoring terminal
A14. Open/closing state of operating
circuit can be seen in the 【 input
quantity】menu.
Please note about the binary input
voltage upon ordering, it is set to
DC220V by default.
B02 Circuit breaker
position(Breaker)
B03 Carriage operation
position(Trolley Run)
B04 Carriage test position(Trolley
Test)
B05 Ground knife position(Earth
Switch)
B06 Spring is not energized(Spring)
B07 Logical control 1(Joint Trip 1)
B08 Logical control 2(Joint Trip 2)
B09 Logical control 3(Joint Trip 3)
B10 Logical control 4(Joint Trip 4)
B11 QF2 contact(QF2 Node)
B12 Motor’s
normal-reverse(Nor.Rev.Func.)
B13 Binary input 12(Input 12)
Binary input in
operation
circuit
Binary input by manual
trip(Manual Trip)
Binary input by manual
closing(Manual Close)
Operation circuit(Operate CIR)
B14 Positive terminal of internal
24V power supply
4.3 Monitoring of binary output
Binary output can be monitored under the [Binary output] menu, press the ““, ““ keys
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to flip over.
Binary output terminals Binary output name Test method
B15-B16 Device Failure
Select open and close menu, use “+”,
“-” key to operate and test the
corresponding terminals. B31-B32
and B34-B35 are common open
terminals that should close.
B17-B18 Trip Signal
B19-B20 Alarm Signal
B21-B22 Output 4
B23-B24 Output 5
B25-B26 PROT Output 1
B27-B28 PROT Output 2
B29-B30 Softstart Output
B31-B32(Common
open) Output 9
B32-B33
B34-B35(Common
open) Output 10
B35-B36
A22-A23 Remote Close
A22-A24 Remote Trip
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5... Operation instructions..................... 5.1 Control panel of device
128*64 matrix LCD (The LCD will go off after a period of absence of keyboard operation;
the LCD will be illuminated automatically when any key is pressed or in case of
protection trip or alarm.)
Signal indicator: operation, communication, operation, alarm, reclosure, fault (of the
device)
Circuit breaker state indication: indicating the current state of the circuit breaker (“Open”,
“Close” position indication)
Remote/local selection signal, local opening/closing button
Key pad: , , , , Cancel, -, +, Enter, Revert
The 6-bit nixie tube displays the primary measured values in real time: IA, IB, IC, Uab,
Ubc, Uca, P, Q, Cosφ. (Please set the PT, CT transformation ratios properly in the System
Parameters menu). The maximum display range of the power on the nixie tube is: 99999.
Note: Measurement IA: AA, measurement IB: bA, measurement
IC: CA, voltage Uab: AbkV, voltage Ubc: bCkV,
voltage Uca: CAkV, active power: PkW, reactive power:
qkvar, power factor: H
5.2 Instructions for use of key pad and LCD display
During the device’s normal operation, it will display the measuring current, voltage,
power, time and operation state of motor (indicating motor’s normal-reverse) in cycle.
Press the “Enter” key to enter the main menu, which is a multi-level tree menu. Press the
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““, ““ keys to move the cursor to the desired entry, press the “Enter” key to enter this
entry, and press the “Cancel” key to return to the next higher level of screen. If this screen
is still a menu, continue to press the ““, ““ key to select the desired entry, press the
“Enter” key to enter the next level of screen, and press the “Cancel” key to return to the
next higher level of menu. If there is no menu screen, be sure to press the “Cancel” key to
return to the next higher level of menu. The main menu is shown at the center of the
following figure, with the corresponding submenus on both sides.
The main interface displays the primary operating parameters in turn. The maximum
displayed value of the primary is 6000.0A. For systems with a rated current of 5A, the set
CT transformation ratio shall not exceed 2000. If the primary power is greater than
1000kW, the display unit is MW, otherwise is kW.
Main menu
1. State Display
2. Signal Revert
3. Report Display
4. Output Test
5. SYS Parameters
6. Setting Value
7. Clock Setting
8. Password
9. Version Info.
5. Parameters
Setting Zone No.
Comm. Setting
B.Parameters
D/A Setting
Pulse Energy
Trip Times Clear
D/A setting
Impulse energy setting
分闸次数清零
Type:MxPR-610Hb
Ver :V□.□□.□□
Date:20□□-□□-□□
XXXCRC: □□□□□□□□□
1. State Display
Protection data
Measuring data
Binary input
Pulse Energy
Phase Angle
Harmonic Data
DC Input Data
Trip Times
3. Report Display Trip Report Binary Report Event Report MotorStart Value
6. Settings(Note 3)
Protection On/Off 。。。。。。 Note: See protection setting table for detailed setting menus.
4. Output Test
Device Failure
Trip Signal
Alarm signal
Output 4
Output 5
PROT Output 1
PROT Output 2
Softstart Output
Output 9
Output 10
Remote Close
Remote Trip
Operate All
7. Clock setting
Date:□□-□□-□□
Time:□□:□□:□□
8. Input Password
□□□□
2. Signal Revert
Enter
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Note 1:Only the motor’s protective and monitoring device has this item.
Note 2:The system parameters such as basic parameters, output matrix and D/A
settings are variable with the different devices. See the device description.
Note 3:The setting menu is shown in the device description.
State Display
The [State Display] menu contains 8 submenus, including protection data, measuring
data, binary input, impulse energy, angle display, harmonic data, DC measurement and
trip statistics. It is described as follows:
1.1Protection data ↑ ↓
Ia=□□□.□□A
Ib=□□□.□□A
Ic=□□□.□□A
Uab=□□□.□□V
Ubc=□□□.□□V
Uca=□□□.□□V
I1=□□□.□□A
I2=□□□.□□A
I0=□□. □□□A
U1=□□□.□□V
U2=□□□.□□V
U0=□□□.□□V
Pn=□□□□.□W
F=□□□.□□Hz
I0js=□□□.□□A
U0js=□□□.□□V
Protection current
Bus line voltage
Positive sequence current of protection
Negative sequence current of protection
Zero sequence current of high-voltage side
(analog)
Positive sequence voltage
Negative sequence voltage
Zero sequence voltage(analog)
Reverse power
Frequency
Zero sequence current(calculation value)
Zero sequence voltage(calculation value)
1.2 Measuring data ↑ ↓ IA=□□.□□□A IB=□□.□□□A IC=□□.□□□A Ua=□□□.□□V Ub=□□□.□□V Uc=□□□.□□V P= □□□□.□W Q= □□□□.□var CosΦ=□.□□□
Measuring current
Bus phase voltage(no display in VV
wiring mode)
Active power
Reactive power
Power factor
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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Note: In the standard configurations, the input circuit has the connection to an
external 220VDC control power supply. When no DC control power supply or control
system is available on site, but a 110VDC control power supply is available, a 110VDC
control power supply may be used for direct connection through local hardware
adjustment, or the 24V power supply of the device may be used as the input power supply
(when the input common terminal is +24V, terminal number: B14, Terminal B01 is kept
float). However, this must be specified upon ordering.
Binary input ↑ ↓
Breaker:□
Trolley Run:□
Trolley Test:□
Earth Switch:□
Spring:□
Joint Trip 1 :□
Joint Trip 2 :□
Joint Trip 3 :□
Joint Trip 4 :□
。。。。。。
At Closed, circuit breaker is at closed position; at Open,
circuit breaker is at open position. Note:The The position
of the circuit breaker relates to protection logic, with
fixed position.
When Closed, trolley at operating position
When Closed, trolley at test position
When Closed, trolley at closed position
When Closed, energy storage not completed
Pulse Energy ↑↓
MC1:□□□□□□□□□□
MC2:□□□□□□□□□□
MC3:□□□□□□□□□□
MC4:□□□□□□□□□□
+□□□□□□□·□□□kWh
+□□□□□□□·□□□kvh
-□□□□□□□·□□□kWh
-□□□□□□□·□□□kvh
Accumulation of the device’s real-time active and reactive calculations
over time, + for positive direction, - for negative direction
External impulse energy input counting (4-way)
Phase Angle↑ ↓
Ua: 0 0 0 ·0 0°
Ub:□□□·□□°
Uc:□□□·□□°
Ia:□□□·□□°
Ib:□□□·□□°
Ic:□□□·□□°
IA:□□□·□□°
IB:□□□·□□°
IC:□□□·□□°
Phase angle relative to Ua, Ua as 0° by default. When wiring method is
VV, it displays line voltages relative to Uab, the same as follows
Phase angle of protection current relative to Ua
Phase angle of measuring current relative to Ua
Description varies with model, see corresponding terminal diagram
for details
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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34
Signal revert
In the [Signal Revert] menu, press the “Enter” key, the signal relay and the “Operation”
indicator on the panel will be reset.
Report Display
The [Report Display] menu includes 4 submenus, including trip report, remote signal
report, event report and clear report. Event recording includes: device self-check fault,
device setting value modification, system parameter modification and setting zone
number modification, etc. Trip report can be recorded for the last 50 events, remote signal
report for 100, event report for 30 at most. Beyond this, the latest report will overwrite the
earliest one. Press the “Enter” key to enter the corresponding [To view xx report, please
enter report number: 00 ] menu, and enter any figure within storage volume, press the
“Enter” key to display the contents of that report. The screen is as follows:
Press key to see the specific operation value. Press and keys to flip over.
Operation values
Trip statistics
Total: □□□□ times
Harmonic↑ ↓
I2: □□□·□□%
I3: □□□·□□%
I4: □□□·□□%
I5: □□□·□□%
。。。。。。
I11: □□□·□□%
2~11st harmonics for which analog channels have been selected in system
DC Input
DC1:□□□·□□mA
DC2:□□□·□□mA External DC input 4~20mA (2-way)
Report No.:□□ ↓
20□□-□□-□□
□□:□□:□□:□□□
□□□□□□
Report No. of this report
Year, month, day, hour, minute, second and
millisecond when it took place
Description of report’s contents
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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35
Output test
After entering the [Output Test] menu, the correct password is required to enter the
[Output Test] menu. It displays the following:
Press “Enter” key
——————>
<——————
Press “Cancel” key
(Note: After signal relay closed, press the “Revert ” key or enter the【Signal revert】
menu, press “Enter” to make the signal relay reverted. When the test is performed on
the 6 protection outputs, the starting relay will be in the “Closed” state automatically.
The “+”, “-” keys are used for switching between the “Close/Open” control.)
4.Output test ↑ ↓
Device Failure
Trip Signal
Alarm signal
Output 4
Output 5
PROT Output 1
PROT Output 2
Softstart Output
Output 9
Output 10
Remote Close
。。。。。。
Operate all relays
Device Failure
On Off
Ia = □□□·□□ A
Ib = □□□·□□ A
Ic = □□□·□□ A
Uab = □□□·□□ V
Ubc = □□□·□□ V
Uca = □□□·□□ V
I1 = □□□·□□ A
I2 = □□□·□□ A
I0 = □□·□□□ A
U1 = □□□·□□ V
U2 = □□□·□□ V
U0 = □□□·□□ V
Ua = □□□·□□ V
Ub = □□□·□□ V
Uc = □□□·□□ V
I0js = □□□·□□ A
U0js = □□□·□□ V
Pn = □□□□·□ W
DC1 = □□□·□□ mA
DC2 = □□□·□□ mA
F = □□□·□□ Hz
Protection current
Bus line voltage
Positive sequence, negative sequence, zero sequence of
protection current
Zero sequence is as analog.
Positive sequence voltage
Negative sequence voltage
Zero sequence voltage
Bus phase voltage
Zero sequence current calculation value at high-voltage side
Zero sequence voltage calculation value
Reverse power
Non-electric quantity DC
Frequency
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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System parameters
After entering the [System Parameters] menu, the correct password is required to
enter the [System Parameters] menu. It displays the following:
Setting zone number setting: range 00~07.
Communication setting
5.Parameters↑ ↓
Setting Zone No.
Comm. Setting
B.Parameters
D/A Setting
Pulse Energy
Trip Times Clear
Com. Setting ↑ ↓
RS485 Address
□□
RS485 Baudrate
□□
Pulse Input Time
□□□□ms
IP Address
□□□. □□□. □□□. □□□
Subnet Mask
□□□. □□□. □□□. □□□
KW Default
□□□. □□□. □□□. □□□
Communication address of device 01~99
00:2.4KB;01:4.8KB;02:9.6KB;03:19.2KB;
04:38.4KB;05:115.2KB
Confirmation time of 4-way impulse
energy, >10ms, < impulse width of kilowatt-hour
meter
For Ethernet communication
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37
Setting of basic parameters (see the description of the protection device for basic
parameters)
D/A setting
The device has two 4~20mA outputs. The DA1~DA2 adjustment factor is used to
adjust the accuracy of the channel output. The DA1~DA2 channel selection is used to
select the corresponding analog quantity channel (see the description of the protection
device for specific reference quantities). In the accuracy test, make sure the field ground
is in good contact; otherwise the accuracy might be affected.
Impulse energy setting
Energy base numbers can be set, including Impulse 1, Impulse 2, Impulse 3, Impulse
4, positive active energy, positive reactive energy, negative active energy and negative
reactive energy.
Clear trip count
It is used to clear the trip count.
Settings
After entering the password, you can enter the [Settings] menu. See the settings
description of the protection device for the detailed description.
Clock setting
A battery-back real-time clock is provided in the device, which can perform time
adjust remotely via the communication network or in-site time adjust in the [Time Setting]
menu.
Setting the CT secondary current rating 00:
1A;01:5A
Setting the PT transformation ratio 1~1500
Setting the CT transformation ratio 1~5000
Setting the CT secondary wiring mode 00:
3-phase;01:2-phase
Setting the PT secondary wiring mode 00:YY;
01:VV
Setting analog quantity channels 0~12 for
harmonic monitoring, select 0 to exit from the
harmonic calculation function.
B.Parameters
Rating Current
□□
PT Ratio
□□□
CT Ratio
□□□
CT Wiring Mode
□□
PT Wiring Mode
□□
Harmonic Channel
□□
。。。。。。
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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38
Enter this menu and press the “Enter” key, the clock will stop refreshing and a cursor will appear. Move the
cursor to the desired position for modification by pressing the ““, ““ keys, modify to the desired value with
the “+”, “-” keys. Press the “Enter” key to complete setting. If the “Cancel” key is pressed, the setting will be
cancelled and the screen continues to refresh the clock.
Password
The [Password] menu is used to modify the password for entry into the Settings,
System parameters and Output Test submenus. The initial password is provided by the
factory. The universal password is “1000”.
Move the cursor to the desired position for modification by
pressing the ““, ““ keys, modify to the desired password with
the “+”, “-” keys. Press the “Enter” key to enter the new password
setting menu as above; press the “Cancel” key to cancel the setting.
GPS clock synchronization
The GPS clock synchronization signal is input as rs485 differential voltage, the
device is able to receive GPS clock minute synchronization (or second synchronization). If
there is GPS signal, there will be and flashing on the bottom of cycle menu;
otherwise won’t.
The principle of GPS clock synchronization: The second pulse or minute pulse act
with the monitoring system, the time base with second precision is sent by monitoring
system, when the GPS second differential signal arrives, the time base is unified and the
milliseconds are cleared.
Version Info
In the main menu, after entering the [9. Version Info] menu, the model, software
version No. and date of the device will be displayed.
Note: For a corresponding nonstandard model, the device’s displayed model does not
have to be changed.
7. Clock setting
Date:20□□-□□-□□
Time: □□:□□:□□
Input Password
0 0 0 0
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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39
6... Check of protection function.........................
6.1 Check of prolonged start time protection(Start Time Over)
Wire as Figure 6-1, switch on the prolonged start time protection. Set motor’s rated
current and starting time according to motor’s nameplate parameters or real measuring
value. The current (>1.2Ie)is input, when the motor’s starting time is exceeded, the
protection will operate. The terminals B17-B18, B25-B26, B27-B28 should be shorted.
Figure 6-1
6.2 Check of 2-section over-current protection(Overcurrent)
Wire as Figure 6-1, switch on instantaneous over-current protection. The current 1 of
instantaneous over-current (at starting) and current 2 of instantaneous over-current (after
starting) are be set separately. If the fault current is input at starting time or after starting time,
the protection will operate. The terminals B17-B18, B25-B26, B27-B28 should be shorted.
Switch on FC block alarm, 50ms is added up to instantaneous over-current protection delay at
this moment. When the fault current exceeds FC breaking current, (the current setting value
should be greater than over-current setting value), FC block instantaneous over-current
protection will operate. Locked time can be set in the system parameters.
Locked rotor protection is provided after starting, which checking way is the same as
instantaneous over-current after starting.
Setting value of
instantaneous
over-current (A)
1.2 Ie 2 Ie 5 Ie 10 Ie
Instantaneous
over-current
delay (s)
10 5 2 1
Current 1 of
instantaneous
over-current
( at starting
time)(A)
MMPR-610Hb
D01
A01
D03
D05
A02
D02(D04,D06)
Ia
Ib
Ic
Ia’(Ib’,Ic’)
Power supply
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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40
Current 2 of
instantaneous
over-current
( after starting
time) (A)
Instantaneous
over-current
time (s)
6.3 Check of negative sequence over-current protection(NS Overcurrent)
Negative sequence current is derived from protection current calculation. Wire as
Figure 6-1.
6.3.1 Negative sequence over-current definite time limit(NS OC DT)
Switch on negative sequence over-current definite time limit protection, inputting
currents of 3-phase in negative sequence mode. See the following table and set,
measuring operation current value for record.
Setting value of negative
sequence current (A) 0.2 Ie 0.4 Ie 0.6 Ie 0.8 Ie
Negative sequence
current delay (s) 10 5 2 1
Negative sequence
current operation value
(A)
Negative sequence
current operation time (s)
6.3.2 Negative sequence over-current inverse time limit(NS OC IT)
Switch on negative sequence over-current inverse time limit, select one curve in
inverse time limit modes(01:Standard inverse time limit;02:Unusual inverse time limit;
03:Extreme inverse time limit;04:Long inverse time limit), the time constant Tp of inverse
time limit is set as 0.50s and the current Ip of inverse time limit is set as 5A. See the
following table and set. When over-current inverse time limit protection operates, the
measuring terminals B17-18, B25-26, B27-B28 should be shorted.
Curve type Operation value
of inverse time
limit
2Ip(A) 3Ip(A) 5Ip(A)
01:Standard
inverse time limit
Reference
operation time
5.105s 3.15s 2.140s
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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Ip=5A,τp=0.5s Actual
operation time
02:Unusual
inverse time limit
Ip=5A,τp=0.5s
Reference
operation time
6.750s 3.375s 1.688s
Actual
operation time
03:Extreme
inverse time limit
Ip=5A,τp=0.5s
Reference
operation time
13.333s 5.000s 1.667s
Actual
operation time
04:Long inverse
time limit
Ip=5A,τp=0.5s
Reference
operation time
60.000s 30.000
s
15.000s
Actual
operation time
6.4 Check of zero sequence over-current protection(ZS Overcurrent)
Zero sequence over-current protection can select trip or alarm. When zero
sequence over-current protection trip is switched on, the alarm will be switched off
automatically. Wire as Figure 6-2.
Figure 6-2
See the following table and set, measuring the operation current value for record. If
the zero sequence over-current protection operates, the measuring terminals B17-18,
B25-26, B27-B28 should be shorted. If zero sequence over-current alarm is provided, the
measuring terminals B19-B20 should be shorted.
Setting value of zero
sequence current A) 0.20 0.50 1.00 1.50
Setting value of zero
sequence current delay5 3 2 1
MMPR-610Hb
D07
A01
A02
D08
I0
I0’
Power supply
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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42
(s)
Operation value (A)
Operation time(s)
6.5 Check of overload protection(Overload)
Overload protection uses the maximum current of phase for judgment. Trip or alarm
can be selected. Wire as Figure 6-1, switch on overload trip. When the overload trip is
switched on, the alarm is switched off automatically.
See the following table and set, measure operation current value and keep a record
in the table. When the overload alarm operates, the measuring terminals B19-20 should
be shorted. When the overload trip operates, the measuring terminals B17-B18, B25-26,
B27-B28 should be shorted.
Setting value of
overload (A) 5 10 15 20
Overload delay (s) 10 5 2 1
Overload operation
value (A)
Overload operation
time (s)
6.6 Check of overheat protection(Motor Over Heat)
Wire as Figure 6-1, switching on overheat protection, the other protections are
switched off. The motor starting time is set as 5s and set K1=1.0,K2=0; The heating time
constant is set according to the following table. Input the current showed in the following
table(Ie is the rated current), and then record the operation time. If it operates correctly,
the measuring terminals B17-B18, B25-26, B27-B28 should be shorted, and the operation
time should accord with the calculation value derived from overheating judgment criterion.
Overheating alarm time = Trip output time × Overheating alarm factor(%). When
overheating alarm operates, the measuring terminals B19-B20 should be shorted.
Input
current value
Heating constant
1.5Ie 2Ie 4Ie 6Ie
100
1000
6.7 Check of underload protection (Underload PROT)
Wire as Figure 6-3, and switch on the underload protection, imitating the state of
circuit breaker closing. Input starting current(>0.1Ie)and imitate motor start. After starting
time, the motor is put into the operation state. Reduce the fault current and make it be less
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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43
than the setting value of underload, the underload protection will operate. The underload
protection can be switched On/Off on alarm or trip. When it operates on the trip, the
measuring terminals B17-B18, B25-26, B27-B28 should be shorted; When it operates on
the alarm, the measuring terminals B19-B20 should be shorted.
Figure 6-3
6.8 Check of voltage protection(Voltage PROT)
6.8.1 Check of under-voltage protection(Undervoltage PRO)
Under-voltage protection uses the maximum line voltage for judgment. In case of PT
failure, the under-voltage protection will be blocked. Wire as Figure 6-4, and switch on
under-voltage protection, PT failure and PT failure block are switched on.
Figure 6-4
See the following table and set, measuring the operation voltage value for record.
When the under-voltage operates, the measuring terminals B17-B18, B25-B26, B27-B28
should be shorted. When PT failure occurs, the under-voltage will be blocked.
Setting value of
under-voltage (V) 95 90 85 80
Under-voltage delay
(s) 10 5 2 1
MMPR-610Hb
D01(D03,D05)
A01
D02(D04,D06)
B01
A02
B02
Ia(Ib,Ic)
Ia’(Ib’,Ic’)
Power supply
Auxiliary contact of breaker
MMPR-610Hb
D15(D17,D19)
A01
D16(D18,D20)
B01
A02
B02
Ua(Ub,Uc)
Ua’(Ub’,Uc’)
Power supply
Auxiliary contact of breaker
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Operation value of
under-voltage (V)
Operation time of
under-voltage (s)
6.8.2 Check of over-voltage protection(Overvoltage PROT)
Over-voltage protection uses the maximum line voltage for judgment. Wire as Figure
6-4, and switch on the under-voltage protection.
See the following table and set, measuring the operation voltage value for record.
When the over-voltage operates, the measuring terminals B17-B18, B25-B26, B27-B28
should be shorted.
Setting value of
over-voltage (V) 105 110 115 120
Over-voltage delay
(s) 10 5 2 1
Over-voltage
operation value (V)
Over-voltage
operation time (s)
6.9 Check of logic control protection(Joint Trip PROT)
Switch on all the logic control protection, the delay is set as 0s.
Terminal B01 is connected to negative pole of DC220V, and terminals B07, B08, B09, B10
is connected to the positive pole of DC220V separately, then the logic control protection
will operate separately. The measuring terminals B17-18, B25-26, B27-28 should be
shorted.
6.10 Check of non-electric quantity protection(Non-electric)
Wire as Figure 6-5, and switch on non-electric quantity protection. Take non-electric
quantity 1 protection for example.
Figure 6-5
MMPR-610Hb
D25 A01
D26 A02
DCSIn+
DCSIn-
Power supply
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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See the following table and set, measuring the DC operation value and keep a
record in the table. When the protection operates, the measuring terminals B17-18,
B25-26, B27-28 should be shorted.
Setting value of
non-electric quantity 1
(mA)
5 10 15 18
Non-electric quantity 1
delay (s) 10 5 2 1
Non-electric quantity 1
operation value (mA)
Non-electric quantity 1
operation time (s)
6.11 PT/CT failure
Currents of 3 phases are wired as Figure 6-1, imitate all kinds of CT failure, the
device will send alarm signal, the measuring terminals B19-B20 should be shorted.
Voltages of 3 phases are wired as Figure 6-4, imitate all kinds of PT failure, the device
will send alarm signal, the measuring terminals B19-B20 should be shorted.
6.12 Check of synchronous motor protection(Synchrodyne)
6.13.1 Check of out-of-step protection(Out-Of-Step PROT)
Wire as Figure 6-3, switch on out-of-step protection, imitating circuit breaker closing
state. Input impulse current and set the setting value according to the following table.
Measure the operation delay for record. When the out-of-step protection operates, the
measuring terminals B17-18, B25-26, B27-28 should be shorted.
Setting value of
out-of-step current
(A)
1.2 Ie 2 Ie 3 Ie 4 Ie
Setting value of
out-of-step delay
(s)
4 3 2 1
Out-of-step
operation delay(s)
6.13.2 Check of asynchronous impact protection(Asynchro.Impact)
Wire as the testing power method, switch on the asynchronous impact protection.
The asynchronous impact delay is set as 1s. See the following table and set, measuring
the operation delay value for record. When the asynchronous impact protection operates,
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
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the measuring terminals B17-18, B25-26, B27-28 should be shorted.
Setting value of
asynchronous impact (W)
10 50 100 150
Setting value of
asynchronous impact delay
(s)
10 5 2 1
Asynchronous impact
operation delay(s)
6.13 Check of under frequency unloading protection(Under-frequency)
The frequency of under frequency unloading protection is derived from measuring
frequency of voltage Uab. To prevent the load feedback, the frequency slip block (On/Off)
and low current block can be used. To prevent fast voltage drop from mis-operation of
frequency protection, under-frequency unloading protection has under-voltage block. Wire
as Figure 6-6, switch on under-frequency unloading protection. The slip block is provided
when measuring the slip frequency. Switch off the slip block when measuring frequency
operation value, operation delay, so as not to affect the operation accuracy.
Figure 6-6
See the following table and set, measuring the operation value for record. When the
under-frequency unloading protection operates, the measuring terminals B17-18,
B25-B26, B27-B28 should be shorted.
Setting value of
under-frequency (Hz) 49.5 49 48.5 48
Setting value of
under-current (A) 0.5 0.5 1 1
Setting value of
under-voltage (V) 10 20 30 60
Setting value of slip
block (Hz/s) 3 4 5 7
MMPR-610Hb
D01
A01
D02
D15(D18)
A02
D16(D17)
Ia
Ia’
Ua(Ub)
Ua’(Ub’)
Power supply
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Setting value of
under-frequency operation
delay (s)
0.5 1 2 3
Operation value of
under-frequency (Hz)
Operation time of
under-frequency (s)
Slip block value
(Hz/s)
6.14 Normal-reverse function(Nor.Rev.Func.)
Switch on the normal-reverse function. Input DC220- at binary input terminal B01 and
DC220+ at B12 when there is not protection current in the motor. If the mark “M-” is
displayed in the position of motor operation state where is in the lowest line of cycling
display menu, it proves that the motor is in the reverse state at this moment. Then select
the current commutating mode, and input commutating current to check if the negative
sequence current or power data is correct.
6.15 Soft starting function(Soft Startup)
Switch on the soft starting function and the soft starting mode is set as “ON”. The
starting method selection expresses that the relation of starting current and starting time
is “and” or “or”, setting the soft starting current. The binary input terminal B01 is
connected to negative pole of DC220V, and the terminal B02 is connected to the positive
pole of DC220V(imitating the circuit breaker state).The binary input terminals are not
connected to the positive pole of DC220(the auxiliary contact QF2 is at opening
position.). See the motor’s starting current curve(Figure 2-1), input single phase current
and make it be greater than setting current value at motor’s starting time, and then make
it drop to be less than soft starting setting current value. Until the motor’s starting time,
the device will send a command of operating gear closing, and the terminals B29-B30
are closed for 500ms. If after closing operating gear for 3 seconds, the device don’t
detect QF2 is closed(binary input terminal B11), the breaker will trip and report soft
starting failue. The terminal B11 is connected to positive pole of DC220V, the soft
starting is successful.
Figure 6-7 is wiring diagram of controlling circuit.
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
48
Figure 6-7
QF2
QF
High-voltage resistor or reactor
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
49
1.IA1、IB1、IC1为保护电流。
2.I0为零序电流。
3.Ia、Ib、Ic为测量电流。
4.Ua、Ub、Uc为母线电压。
5.U0为零序电压。
6.UL为线路电压。
7.DCSIn为2路4~20mA直流
输入。
CPUI/O AC
ON
OFF
Power
Ne
t 2
Ne
t 1
De
bu
g
Appendix 1: Terminal diagram of device
Appendix 1 Terminal diagram of MMPR-610Hb motor protection and monitoring device
Input 12
Pulse 1(MC1)
D26
D28D27
D25 DCSIn1+
DCSIn1-
DCSIn2-
DCSIn2+
A07
A09A08
A11A12A13A14A15A16A17
A10
-WC
+WC
A18
A20
A19
A22
A24A23
A21
C01 GPSA
GPSB
C03
C05C04
C02COM1A
C07
C06
COM1A
COM1B
C09
C08
COM1B
C11C10
C12
C15C14
DCS1+
C16
DCS1-C18
DCS2-C20C19 DCS2+
C17
C13
Run
Net1
Net2
COM1
COM2
Debug
COM2B
COM2B
COM2A
COM2A
IB'
I0'
AC
IA'
Ic'
Ib'
Ia'
CPU
B33
B36B35B34
B32
B31B30
A03 B15
A05A06
A04
B22
B29B28B27B26B25B24B23
D23
D21
D19
D17
B20B21
B19
B16
B18B17
Power off
Power off
D15
D13
IA
D11
D09
I0
A01
A02
B07
B11
B13
B14
B12
B09B08
B10
OFFD07
IB
D05 Ic
D03 Ib
D01 Ia
B03B04B05B06ON
B02B01
POWER I/O
D24
D22
D20
D18
D16
D14
D12
D10
D08
D06
D04
D02
IC IC'
Ua Ua'
Ub Ub'
U0'U0
Uc'Uc
(+24V)
Pulse 2(MC2)
Pulse 3(MC3)
Pulse 4(MC4)
1.Ia,Ib,Ic are protective currents.2.I0 is zero-sequence current.3.IA,IB,IC are measuring currents.4.Ua,Ub,Uc are bus voltages.5.U0 is zero-sequence voltage.6.DCSIn is 2-way 4~20mA DC input.7. Net1,Net2 are ethernet interfaces,COM1,COM2 are 485 interfaces.8. If +24V on IO board is standard configuration or not,it is used as input power supply only when using internal 24V.
QF2 Node
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
50
Appendix 2: Typical wiring diagram
Appendix 2 Typical wiring diagram of MMPR-610Hb motor protection and monitoring
device
pulse
currentvoltage
b reaker
Net2
Net1Ethernet port
Softstart
Output
PROT Output 2
PROT Output 1
Output 5
Output 4
Alarm signal
(24V+)
Trip Signal
DCSIn1-
DCSIn2-
DCSIn2+
DCSIn1+
AC plug-in
Output contact 10
normally closed
Output contact 10
common terminal
I/O plug-in unit
Alarm signal
Output 4
PROT Output 2
Softstart
Output
Output contact 9
normally open
Output contact 9
normally closed
Output contact 10
normally open
Output contact 9
common terminal
Operating circuit failure
Power off
Trip position
Closing position
AC plug-in unit
Bus voltage Zero-sequence Protection current Zero-sequence Measuring current
Note: 1.As shown in the figure,ZK(remote/local changeover switch)and KK(manual operating switch)are installed on the panel,when remote/local changeover switch and manual operating switch of device panel are used,terminal A21 is connected to +WC. 2.As shown in the figure,PT secondary is wye-connected,when it is in V-V wiring,terminals D15,D20 are connected to phase A of PT secondary,terminals D16,D17 to phase B of PT secondary,terminals D18,D19 to phase C of PT secondary.
Shielded ground
plug-in unit
plug-in unit
Joint Trip 1
IB IB'
Pulse common +24V
Negative reactive
pulse
Negative active pulse
Positive reactive
Positive active pulse
DCS2-
DCS2+
DCS1-
Pulse 4( 4)
Pulse 3( )
Circuit
IC IC'Uc'UcUb'UbUa'Ua IA'IAI0'I0
DCS1+
2
2
2
2
Shielded ground
1
1
1
1
Pulse common +24V
Pulse 2( 2)
Pulse 1( )
Input common
terminal-
Breaker
Trolley Run
Trolley Test
Earth Switch
Spring
Joint Trip 2
Joint Trip 3
Joint Trip 4
QF2 Node
Nor.Rev.Func.
Input 12
Device Failure
Device Failure
Trip Signal
+
Manual trip input
Remote control trip
Device panel+
Manual closure input
Remote control closure
Remote control common terminal
-
Closing coil
Trip position monitoring
Trip coil
Closing position monitoring
Power supply-
Shielded ground
Power supply+
U0 U0' Ia Ia' Ib Ib' Ic Ic1'
Pow
er
Ethernet port
Debugging port
MMPR-610Hb
microcomputer motor protection monitoring device
CP
U
PROT Output 1
Output 5
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
51
Appendix 3: Operating circuit of MXPR-600Hb series device
Traditional operating circuits are started by current, while a voltage maintaining circuit
realizes electric trip prevention. An anti-trip relay will be selected depending on the current
of the trip/closing circuit of the circuit breaker. However, this has poor generality and can
hardly be realized for circuit breakers with low trip and closing currents (such as 10kV
circuit breakers from AEG Company in Germany, whose trip and closing currents are not
greater than 0.2A). To simplify wiring and design finalization, and to improve the generality
of the product, we offer a new operating circuit shown below.
TBJ2
TBJTCJ1
SHJ
YTJ
HBJA20
HBJ
TCJ2
STJ
STJ
1LP
JnTn3
Tn4
HWJA10
TWJA09
DLA13
HWJ
TWJ
A08TWJ
A12HWJ
A14
A20
A07
A11
TCJ
SHJ
TBJ1
Tn2
A24
Tn1
Jn
A22YHJ
A18
A19
A17
A23
A15 Closing circuit
Trip circuit
Fuse
Small bus
TQDL
HQDL
KK84 5
ZK2
2LP
7KK
686ZK
3ZK
1
A16
Schematic diagram of operating circuit
In the diagram, KK is a traditional operating switch, used for manual trip/closing
operations, ZK is a changeover switch, used for changeover of local and remote control.
When ZK is at the “Remote” position, the power of the remote control circuit will be
switched on, i.e., Terminal A22 of the device is connected to +KM, and the power of the
manual operating circuit is cut off, disabling manual closing and manual trip. On the
contrary, when ZK is at the “Local” position, the power of the manual operating circuit is
User’s manual of MMPR-610Hb microcomputer motor protection and monitoring device
WLD[K]-JY-222-2010
52
switched on and that of the remote control circuit is cut off.
Note: The dotted line outlines the internal circuit of the protection device. All our
devices marked with “anti-trip circuit” are designed on this operating circuit.
Terminals Tn1, Tn2 corresponding to the protection relay Jn are determined by the
corresponding protection output control word. Jn can be any one or more of Protection
outputs 1-8.
Whether local or remote control, the precondition to jump is Terminal A15 of the device is
always connected to +WC. After manual or remote controlled closing, if a short-circuit fault
occurs, the protection will operate to trip the circuit breaker. Though Terminal A15 of the
device is connected to +WC, the closing circuit is disconnected by TBJ1 and will not be closed
again. In this way, circuit breaker jump is effectively prevented.