gmt6c-inglês2

GRAMEYER Equipamentos Eletrônicos Ltda. R. Mal. Castelo Branco, 2477 – Schroeder – SC – Brasil CEP: 89275-000Home page: www.grameyer.com.br e-mail: [email protected] Fones: 55 (047) 3374-6300 – Fax: 3374-6363

MGEN08231

Digital Temperature Monitor

GMT6-CGMT6-CInstallation and Operation Manual

Revision 00 of 2008-03-26

http://www.grameyer.com.br/

mailto:[email protected]

GMT6-C Rev. 00 of 2008/03/28

This manual may in no way be reproduced, filed or transmitted through any type of media, whether it be electronically, by printing, phonographically or any other audiovisual means without prior consent from GRAMEYER. Infringement is subject to prosecution under the law.

Due to the continuous improvement of GRAMEYER products, the present manual may be modified and/or updated without prior notice which may result in new revisions of the installation and maintenance manuals for the same product. GRAMEYER reserves itself the right not to automatically update the information included in this manual. However, customers may at any time request any updated version of the manual, which will be supplied to them free of charge.

* If requested, GRAMEYER can supply an extra copy of this manual. The equipment serial number and model should be informed by the customer, when making the request.

GRAMEYER Equipamentos Eletrônicos Ltda. of 17

© 1996, GRAMEYER Equipamentos Eletrônicos.Todos os direitos reservados.

GMT6-C Rev. 00 of 2008/03/28

Safety Information

To guarantee the safety of the operators, the correct installation and proper operation of the equipment, the following precautions must be taken:

● Installation and maintenance services should be performed only by qualified personnel, using appropriate equipment;

● The product instruction manual and specific product documentation must always be consulted before proceeding with its installation, handling and parameter setting;

● Adequate precautions should be taken to avoid drops, knocks and/or risks to the operators and the equipment;

Do not touch the input and output connectors since high voltages may be present even after the power has been switched off and keep them isolated from the rest of the principal command circuit of the panel.

Always disconnect the main power supply and wait for the machine to come to a complete stop, before touching any electrical component associated with the equipment including the control connectors. Do not open the cover without taking due precautions, because high voltages can be present even after the supply has been disconnected.

The equipment’s electronic boards can have components that are sensitive to electrostatic discharges. Do not directly touch components or connections. If this is absolutely necessary, then first touch the grounded metal body or use the proper ground bracelet.


GMT6-C Rev. 00 of 2008/03/28

Storage Information

Should it be necessary to store the equipment, as well as any of its parts, i.e., electronic boards, panels, electronic components, spare parts, etc..., for a short period of time prior to their installation and/or placing them in operating condition, the following precautions should be observed:

● The equipment and its parts must be kept in their original packaging or in packaging which provides the same safety conditions concerning physical damage, high temperatures and humidity, to prevent oxidation of the contacts and metal parts, damage to integrated circuits or any other damage due to improper storing;

● The properly packaged equipment must be stored in a dry, well ventilated place away from direct sunlight, rain, wind and other adverse weather conditions, to guarantee the preservation of its functional characteristics;

The non-observance of the above recommendations, could exempt the company supplying the equipment from any responsibility referring to the resulting damages as well as the loss of warranty of the equipment or of the damaged part.


GMT6-C Rev. 00 of 2008/03/28

Index 1 Introduction......................................................................................................................6

2 Parameter Guide and References.......................................................................................6

3 Identification Label............................................................................................................7

4 Technical Characteristics....................................................................................................7

5 Identification....................................................................................................................8

6 General Description .........................................................................................................8

7 Connections....................................................................................................................10

8 Installation Recomendations............................................................................................10

9 Programming..................................................................................................................11

10 Calibration....................................................................................................................14

11 Messages......................................................................................................................14

12 Communication.............................................................................................................15

13 Dimensions...................................................................................................................17

13.1 GMT6-C Dimensions (mm)..........................................................................................17

13.2 GCS Dimensions (mm)................................................................................................17


GMT6-C Rev. 00 of 2008/03/28

1 1 IINTRODUCTIONNTRODUCTION

The GMT6-C is a digital temperature monitor that allows visualization, monitoring and simultaneous protection of six temperature channels, using RS485 communication. Used for protection of machines, transformers and industrial processes.

Uses GCS converters to transform the voltage signals of the temperature transducers into current signals, reducing noise and interference when measuring.

2 2 PPARAMETERARAMETER G GUIDEUIDE ANDAND R REFERENCESEFERENCES

Parameter Address(hexa) Description Value

RangeFactory

AdjustmentUser

AdjustmentReference

PageWriting Parameters

LA1 20 Channel 1 Alarm Limit 0 – 250 ºC 120 11LP1 21 Channel 1 Protection Limit 0 – 250ºC 150 11LA2 22 Channel 2 Alarm Limit 0 – 250 ºC 120 11LP2 23 Channel 2 Protection Limit 0 – 250ºC 150 11LA3 24 Channel 3 Alarm Limit 0 – 250 ºC 120 11LP3 25 Channel 3 Protection Limit 0 – 250ºC 150 11LA4 26 Channel 4 Alarm Limit 0 – 250 ºC 120 12LP4 27 Channel 4 Protection Limit 0 – 250ºC 150 12LA5 28 Channel 5 Alarm Limit 0 – 250 ºC 120 12LP5 29 Channel 5 Protection Limit 0 – 250ºC 150 12LA6 2A Channel 6 Alarm Limit 0 – 250 ºC 120 12LP6 2B Channel 6 Protection Limit 0 – 250ºC 150 12TVM 2C Maximum Variation Rate 1 - 250ºC 250 12TRA 2D Alarm Relay Time 0 – 10 s 0 12TRP 2E Protection Relay Time 0 – 10 s 0 12ED 2F Device Address 0 – 250 2 - 14T1 40 Channel 1 Temperature Range 0 – 250 ºC 200 13T2 41 Channel 2 Temperature Range 0 – 250 ºC 200 13T3 42 Channel 3 Temperature Range 0 – 250 ºC 200 13T4 43 Channel 4 Temperature Range 0 – 250 ºC 200 13T5 44 Channel 5 Temperature Range 0 – 250 ºC 200 13T6 45 Channel 6 Temperature Range 0 – 250 ºC 200 13G1 30 Channel 1 gain 0 – 250 ºC 200 13G2 31 Channel 2 gain 0 – 250 ºC 200 13G3 32 Channel 3 gain 0 – 250 ºC 200 13G4 33 Channel 4 gain 0 – 250 ºC 200 13G5 34 Channel 5 gain 0 – 250 ºC 200 13G6 35 Channel 6 gain 0 – 250 ºC 200 13O1 4E Channel 1 offset 0 – 250 ºC 125 14O2 4F Channel 2 offset 0 – 250 ºC 125 14O3 50 Channel 3 offset 0 – 250 ºC 125 14O4 51 Channel 4 offset 0 – 250 ºC 125 14O5 52 Channel 5 offset 0 – 250 ºC 125 14O6 53 Channel 6 offset 0 – 250 ºC 125 14

Flags 36 Flags Table 1 - - 16Reading Parameters

M1 46 Channel 1 Maximum 0 – 250 ºC - - 11M2 47 Channel 2 Maximum 0 – 250 ºC - - 11M3 48 Channel 3 Maximum 0 – 250 ºC - - 11M4 49 Channel 4 Maximum 0 – 250 ºC - - 11M5 4A Channel 5 Maximum 0 – 250 ºC - - 11M6 4B Channel 6 Maximum 0 – 250 ºC - - 11AL 4C Alarm Ocurrences See table 2 - - 16PT 4D Protection Ocurrences See table 2 - - 16


GMT6-C Rev. 00 of 2008/03/28

3 3 IIDENTIFICATIONDENTIFICATION L LABELABEL

Power supply voltage: Indicates the equipment power supply. Generally supplied with 24Vdc or 125Vdc, according to the equipment model.

Output: Indicates the quantity and the output type of the equipment. For example, two outputs to relay with normally open and normally closed contacts.

Power: Indicates the power consumed by the equipment when in operation.

Sensor type: Indicates the sensor type that is compatible with the equipment (Pt100, Copper10, and others).

Program version: Indicates the equipment software version.

4 4 TTECHNICALECHNICAL C CHARACTERISTICSHARACTERISTICS

• Input for 6 PT100 sensors with simultaneous visualization

• Cable resistance compensation

• Alarms with independent configuration for each panel

• Two limits for each channel (alarm and/or protection)

• Relays with Normally Open and Normally Closed contact: 10 A

• High luminosity Alphanumeric Liquid Crystal Display

• Sampling frequency: »1 s

• It stores the maximum values reached

• Temperature range: 1- 250 °C

• Accuracy: 1 % F.E.

• Resolution: 1 °C

• Consumption: » 10 W

• Dimensions : 98 x 98 x 135 mm

• Approximate weight : 750 g

• Operating temperature: +5° ~ +45°C


Figure 1 - Identification label

GMT6-C Rev. 00 of 2008/03/28

5 5 IIDENTIFICATIONDENTIFICATION

The equipment must be plugged in to th proper power supply according to the specified voltage stated in the identification label, with the following ranges:

Power supply:

• 24V (10 Vdc – 35 Vdc / 10 Vac – 24 Vac)

• 125V (90 Vdc – 350 Vdc / 70 Vac – 245 Vac)

NOTE: See the connection diagram on item 07.

6 6 G GENERALENERAL D DESCRIPTIONESCRIPTION

UP key – this key has two functions:

• Advance one screen;

• Increase in 1 (one) the programmed limit, when the cursor is blinking.

DOWN key - this key has two functions:

• Return one screen;

• Decrease in 1 (one) the programmed limit, when the cursor is blinking.


Figure 2 - Programming Interface

GMT6-C Rev. 00 of 2008/03/28

ENTER key – this key has four functions:

• When pressd while on the main screen, it turns off the indication LEDs and disables the relays.

• When pressed while on the screen that contains the maximum values, it resets the maximum values reached.

• When pressed while on the screen that contains the limits, it allows the alteration of the parameter using the UP and DOWN keys ( the cursor will be blinking)

• When pressed while the cursor is blinking, it saves the value of the limit.

It signals communication. When the GMT6c is communicating with another unit this signal will be

blinking.

When blinking it signals that the microprocessor is working properly. This signal must be always

blinking. If it is not, the quipment is not working correctly.

It signals alarms and protections:

• When blinking it signals an alarm, that is, the temperature of the corresponcing channel has surpassed the first limit.

• When lit constantly, it signals a protection, that is, the temperature of the channel has surpassed the second limit.


GMT6-C Rev. 00 of 2008/03/28

7 7 CCONNECTIONSONNECTIONS

8 8 IINSTALLATIONNSTALLATION R RECOMENDATIONSECOMENDATIONS

• Use armored cables between the GMT6-C connectors (channel 1 to 6) and the GCSPT100;

• Preferably supply the GMT6-C using a power supply bus bar different from the one used to supply the panel contactors.

• The GSPT100 must be as close as possible to the temperature sensor used.


Figure 3 - Connection Diagram

GMT6-CChannel 1 to 6

Communication Relay 1 Relay 2

To Ground B NF NA C NF NA C

13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4 5 6 7 8 9 10 11 12

+Power supply

1 2 3 4 5 6 7 8

GCSPT100

PT100

1 2 3 4 5 6 7 8

GCS Copper10

Copper10

-

GMT6-C Rev. 00 of 2008/03/28

9 9 PPROGRAMMINGROGRAMMING

Screen 1 – In this screen, the 6 measured temperatures are shown. By pressing the ENTER key in this screen, the alarms and protections ocurred will be reset.

Screen 2 – Shows the maximum values reached by channels 1, 2 and 3. By pressing the ENTER key in this screen, the alarms and protections ocurred will be reset.

Screen 3 – Shows the maximum values reached by channel 4, 5 and 6. By pressing the ENTER key in this screen, the alarms and protections ocurred will be reset.

From Screen 4 to 9 the alarm limits (Relay1) and protection limits (Relay2) for each channel are shown. These limits can be modified by pressing the enter key while in these screens. The cursor will blink on the first limit, which can be altered by pressing the up or down keys until reaching the desired value. You can then press "enter" to save it. The cursor will then blink on the second limit, which can be altered using the previous procedure.

Screen 4 – Shows alarm and protection limits for channel 1.


Figure 4 - Measured temperature values

100° 10° error--- 25° 50°

Figure 5 - Maximum reached values

Max1 Max2 Max3100° 10° error

Figure 6 - Maximum reached values

Max4 Max5 Max6--- 25° 50°

Figure 7 - Alarm and protection limit values

Relay1 <1> Relay2

OFF 150°

GMT6-C Rev. 00 of 2008/03/28

Screen 5 – Shows the alarm and protection limits of channel 2.







Relay1 <2> Relay2

120° 150°


Relay1 <3> Relay2

120° 150°


Relay1 <4> Relay2

120° 150°


Relay1 <5> Relay2

Off 150°


Relay1 <6> Relay2

Off 150°

GMT6-C Rev. 00 of 2008/03/28

Screen 10 - Shows the maximum temperature variation rate. This parameter shows the maximum temperature variation rate that the GMT6c can accept. If the temperature varies faster than the programmed value, the variation will be limited to that value. This parameter is to filter noise in noisy environments. Great care must be taken when programming this paramenter,because if set two low it can cause the protection to ocurr too late. It is recommended that this parameter is set to 250 initially and only modified if noise problems arise

Screen 11 – Shows the time for the relay actuation after the temperature surpasses the configured limit.

Screen 12 – Shows the device address for communication.

Screen 13 – Shows the temperature range from channel 1 to 3.

Screen 14 – Shows the temperature range from channel 4 to 6 .


Figure 13 - Maximum temperature variation rate

Max Variation250°C/s

Figure 14 - Relays actuation time

<1> Time <2>00s 10s

Figure 15 - Device address

Address02

Figure 16 - Temperature Range

<T1> <T2> <T3>200° 250° 200°

Figure 17 - Temperature Range

<T4> <T5> <T6>200° 250° 200°

GMT6-C Rev. 00 of 2008/03/28

Screen 15 – Gain to calibrate the temperature readings from channel 1 to 3

Screen 16 – Gain to calibrate the temperature readings from channel 4 to 6

Screen 17 – Offset to calibrate the temperature readings from channel 1 to 3

Screen 18 – Offset to calibrate the temperature readings from channel 4 to 6

10 10 CCALIBRATIONALIBRATIONFor a fine adjustment of the measured temperatures, turn on the GMT6-C while pressing the “up” and “down” keys together. Two other screens with the gains of each input will appear. These gains can be adjusted to obtain a more accurate measurement.

11 11 MMESSAGESESSAGESWhen the measured temperature is higher than 250°, the display will show the message ´error´. Even then, if the limit of the each input is different from ‘OFF´, the alarm will actuate normally.

If there is no PT100 connected to the GMT6-C input or if the measured temperature is lower than 1º, it will show: ´---´.

For safety reasons, the alarms of the inputs that are not connected must be turned off.


Figure 18 - Temperature Gain

<G1> <G2> <G3>100 100 100

Figure 19 - Temperature Gain

<G4> <G5> <G6>100 100 100

Figure 20 - Temperature Offset

<O1> <O2> <O3>50 50 50

Figure 21 - Temperature Offset

<O4> <O5> <O6>50 50 50

GMT6-C Rev. 00 of 2008/03/28

12 12 CCOMMUNICATIONOMMUNICATIONThe GMT6-C communicates via Modbus RTU communication plus functions 3 and 6, which are

described below. The parameter addresses are described on tables 1 and 3.

Communication parameters:Baud Rate: 9600 bpsWord Length: 8 bit Parity: NONE Stop Bit: 1

• Function 3

Function 3 is used to read one or more equipment parameters.Example: to read channel 1 temperature, the computer must read position 40 (hexadecimal) of the GMT6-C. Let's suppose that the GMT6-C address is 01:

Transmit:

Module Address: 01Function: 03High initial address: 00Low initial address: 40Data number High: 00Data number Low: 01Check-sum Low: XX \ CRCCheck-sum High: XX /

Wait until the module responds:Module address: 01

Function: 03

Number of data bytes: 00

Data 40 High: 00

Data 40 Low: A0

Check-sum Low: XX \ CRC

Check-sum High: XX /

• Function 6

Function 6 is used to write in a parameter on the equipment.

Example: To change alarm limit of the channel 1, the computer must write at the 20 position (hexadecimal) of the GMT6-C. For example, let's suppose that the GMT6-C address is 01:


GMT6-C Rev. 00 of 2008/03/28

Transmit:

Module Address: 01Function: 06High initial address: 00Low initial address: 20Data number High: 00Data number Low: A0Check-sum Low: XX \ CRCCheck-sum High: XX /

Wait until the module responds:

Module Address: 01Function: 06High initial address: 00Low initial address: 20Data number High: 00Data number Low: A0Check-sum Low: XX \ CRCCheck-sum High: XX /

At the communication address that refers to the flags, the table below must be followed to compose the control command.

BIT Value Indication

0 1 Alarms reset

1 1 Channel 1 maximum reset






7-15 X(doesn't matter) Reserved

Table 1 - Flags

At the communication address that refers to Alarm/Protection, the following table must be observed to compose the control command.

BIT Value Alarm/Protection

1 1 Channel 1

2 1 Channel 2

3 1 Channel 3

4 1 Channel 4

5 1 Channel 5

6 1 Channel 6

7 - 15 X (doesn't matter) Reserved

Table 2 - Alarms or Protections


GMT6-C Rev. 00 of 2008/03/28

13 13 DDIMENSIONSIMENSIONS

13.1 13.1 GMT6-C DGMT6-C DIMENSIONSIMENSIONS ( (MMMM))

NOTE: Cut required for equipment installation is 91x91mm.

13.2 13.2 GCS DGCS DIMENSIONSIMENSIONS ( (MMMM))


Figure 22 - GMT6-C Dimensions

Figure 23 - GCS Dimensions

gmt6c-inglês2

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