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OUTPUTS
Relay Outputs:
The Instant, Area and Fault relays have SPDT contacts rated 5 Amps at 30 Volts DC or 250 Volts
AC.
The Instant and Area alarm relays are programmable for either normally energized or normally
de-energized operation and for latching or non-latching (programmable as a group not
individually). The fault relay is only normally energized. The relays can be configured with jumpers
for normally open or normally closed contacts.
RECOMMENDATION
The fault relay output should not be used to activate an automatic shutdown procedure.
The fault output indicates a potential problem with the controller, not an alarm condition.
Refer to Table 1 for a summary of the relay programming options.
OUTPUT
Selectable Normally
Open/Closed
Selectable Normally
Energized/De-Energized
Selectable
Latching/Non-Latching
AREA Y Y Y
1
INSTANT Y Y Y
FAULT Y N N
23
Table 1 - Selectable Output Options
Area alarms are programmed together, not individually.
1
Fault relay is normally energized.
2
Fault relay is non-latching.
3
Current Outputs:
4-20 mA DC current outputs transmit system information to other devices. The current outputs
can be wired for isolated or non-isolated operation by changing the jumpers as shown in Figure 4.
Refer to Unit IV, System Operation for a description of the current output signal levels.