Pt100 relays
The option contains 3, 5, or 8 GM International D1073S relays by default. Other configurations
are available as an order-based engineered option. The maximum number of relays is 8.
PRelectronics 9116B1 relays are available as an order-based engineered option.
The option also contains one, two or three DOLD LG5925.48 extension relays in the Safe
torque off and diagnostic circuits.
￭ GM International D1073S relay (programmable)
Layout
Current output1-2
1 2 3 4
16 15 14 13
5 6 7 8
C
O
N
F
PWR BURN
ALARM
A B
• 1: + Output channel 1 for Current Source Mode or
Voltage Source Mode
1)
• 2: - Output channel 1 for Current Source Mode or
Voltage Source Mode
1)
This output has been pre-wired to terminal block X506.
See chapter Circuit diagrams.
Power supply
• 3: + 24 V DC
• 4: - 24 V DC
3-4
Output contacts (Alarm A)5-6
Output contacts (Alarm B)7-8
Measuring circuit
• 13: Input channel 1 for 3-4 wire RTD, Reference
Junction Compensator Option 91 or potentiometer
1)
• 14: Input channel 1 for 3-4 wire RTD
• 15: + Input channel 1 for 4 wire RTD, thermocouple
TC or potentiometer
1)
• 16: Input channel 1 for 3-4 wire RTD, thermocouple
TC or potentiometer
1)
13-16
Programming channelCONF
Supply voltage present"PWR" LED (green)
Burnout detected"BURN" LED (red)
Alarm A
2)
"A" LED (red)
Alarm B
2)
"B" LED (red)
1)
Voltage Source Mode, Reference Junction Compensator Option 91, potentiometer and thermocouple TC are not used in
the particular application described by this manual.
2)
Note: For SIL applications, alarm contacts must be used in series with equal configuration. Relay contact shown in
de-energized position.
34 ATEX-certified motor thermal protection function with Pt100 relays (+L514+Q971)
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