Chapter 4 Setup Menus 27
4.5 Relay Operation Control Menu
This menu allows you to set the relay operation mode: non-failsafe
or failsafe. Failsafe relay operation is the opposite of normal
operation where relay contacts are closed when a relay is
operated (activated), and are open when a relay is released (de-
activated). In failsafe mode, an alarm is activated by a non-
energized relay which will open in all cases when an alarm
condition is present or an alarm setpoint is not operational either
due to a loss of control power or due to corruption of the setpoint
setup configuration. A failsafe relay is closed only if it is under
setpoint control and no alarm conditions exist, or if it is manually
operated via communications.
To change the relay operation mode:
Press to activate the lower window.
Use the up/down arrow keys to set the desired
option. Select nor for normal (non-failsafe) relay
operation, or select FSAFE for failsafe relay
operation.
Press to store your new setting or press to
leave your previous setting unchanged.
To quit the setup menu:
From the middle window, press or .
NOTES
1. You will not be able to change the relay operation mode if a relay has
been allocated for pulsing.
2. When a failsafe relay is allocated for pulsing, it automatically reverts
to normal operation.
SELECT
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