section defrosting module dm50-c - systemair...control signal 0-10v ai trigger defrosting di control...
TRANSCRIPT
Section defrosting module
DM50-C
Operation manual EN
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Contents
1 FUNCTION DESCRIPTION ................................................................................................................. 1
1.1 PRINCIPLE SECTION DEFROSTING ............................................................................................................ 1 1.1.1 In normal conditions .................................................................................................................. 1 1.1.2 Defrosting .................................................................................................................................. 1
1.1.2.1 Start via outdoor temperature ........................................................................................................ 1 1.1.2.2 Start via digital input ....................................................................................................................... 1 1.1.2.3 When defrosting is active ................................................................................................................ 1
1.2 SETUP .............................................................................................................................................. 1 1.2.1 OAT setpoint start ..................................................................................................................... 1
1.2.1.1 OAT setpoint inside HMI ................................................................................................................. 1 1.2.1.2 OAT setpoint via digital inputs ........................................................................................................ 2
1.2.2 External controlled defrosting via digital input ......................................................................... 2 1.2.3 DSD (Delayed section defrosting) .............................................................................................. 2 1.2.4 Outdoor compensated DSD ....................................................................................................... 2 1.2.5 Service test function .................................................................................................................. 2 1.2.6 BMS override ............................................................................................................................. 2
2 MENU .............................................................................................................................................. 3
2.1 HMI E3-DSP MENU STRUCTURE ........................................................................................................... 3 2.2 SETTINGS AND VALUES ......................................................................................................................... 3
3 BMS MONITORING AND OVERRIDE FUNCTION ............................................................................... 6
3.1 MODBUS VARIABLES ........................................................................................................................... 6 3.1.1 Coil status .................................................................................................................................. 6 3.1.2 Input register ............................................................................................................................. 6 3.1.3 Holding register ......................................................................................................................... 7
3.2 RS485 ............................................................................................................................................. 8 3.3 MODBUS DATA FORMATS ..................................................................................................................... 8 3.4 SUPPORTED MODBUS FUNCTIONS CODE ................................................................................................. 8 3.5 ADDRESSES USED ................................................................................................................................ 8 3.6 DECIMALS ......................................................................................................................................... 8
4 INPUTS AND OUTPUTS .................................................................................................................. 10
4.1 INPUT DESCRIPTION........................................................................................................................... 10 4.1.1 OAT Setpoint via DI1..4 ........................................................................................................... 10
4.2 INPUTS AND OUTPUTS WIRING AND CONNECTION .................................................................................... 11
5 HARDWARE ................................................................................................................................... 12
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T
DM50-C
Normal conditions
Extract
SupplyExhaust
Outdoor
Control signal 0-10V AI
Trigger defrosting DI
Control signal 0-10V AI
Trigger defrosting DI
T
DM50-C
Active defrosting
Extract
SupplyExhaust
Outdoor
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t°C
DSD min
15
0
Start defrost-8°C
End Point-20°C
Outdoor compensated DSD
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*I/O Status DI
DI1: Off /Bin1-sp
DI2: Off /Bin2-sp
DI3: Off /Bin4-sp
DI4: Off /Bin8-sp
DI5: Off /Test
DI6: Off /DSD
DI7: Off /Trigg DI
Section Defrosting
Actual OAT: 0.0°C
Current state:
Normal mode
Settings
I/O Status
Configuration
Communication
*Settings
Actual OAT: -5.2°C
Setpoint HMI:-11 °C
Setpoint DI: -8 °C
Hys OATsp: 2 K
*Configuration
Trigger Defrost:
DI
OATsp HMI/DI s
DI s
Numbers of ADS:
4 pcs
ADS defrost time
13 min
ADB comp defrost
0 %
DSD settings
Testing time/ADS:
90 sec
Start test
No
BMS override
Off
*I/O Status
DI
AI
AO
*I/O Status AI
AI1: -0.0 °C
AI2: 9.9 V
*I/O Status AO
AO1: 10.0V ADB1
AO2: 10.0V ADS1
AO3: 10.0V ADS2
AO4: 10.0V ADS3
AO5: 10.0V ADS4
*Communication
Port 1
RTU RS485
Device address
1
Bit rate
9600
RTU mode
8E1
Software version
1.0-01-xx
*DSD Settings
DSD Delay seq Loop:
0 min
End point temp *1
-20°C
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Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg, Sweden
Phone +46 222 440 00
Fax +46 222 440 99
www.systemair.com
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