PCME STACK 990 - Page 48

- PCME STACK 990 MANUAL: 48 -
Select the Alarm Type and Device for each relay as described in the Relay Settings section.
If it is required for alarms to stay latched after the end of an alarm condition use the Latch Alarm
function:
Select ‘Setup’ display
Menu route:
More Settings ↵
Edit an existing device ↵
ROM (Relay Output Module) ↵
Latch Alarms?
The relays can be put in a failsafe mode. In this mode during normal non-alarm conditions the
relays are energised and de-energised when an alarm is generated. In the event of a power
failure of a power loss to the Control Unit the relays will de-energise and alarms generated.
Select ‘Setup’ display
Menu route:
More Settings ↵
Edit an existing device ↵
ROM (Relay Output Module) ↵
FailSafe Relays?
The FailSafe function only detects power failure to a ROM. It does not detect a
communication failure. To monitor for communication errors set up a fail-safe relay to
monitor the ROM for Comms Error.
Alarm Type
1
2
3
Limit Alarm
Limit Alarm
Limit Alarm
Back
4
Limit Alarm
None Selected
None Selected
None Selected
None Selected
Device
5
6
7
Limit Alarm
Limit Alarm
Limit Alarm
8
Limit Alarm
None Selected
None Selected
None Selected
None Selected