If the relays are defined as limit value relays, when a limit value transgression occurs they also
switch to the alarm relay.
Different switch on-delays (∆t On) and Switch off delays (∆t Off) can be set for the limit value relays
for
[Limit 1]
and
[Limit 2]
. They prevent the limit value relay from switching back and forward if the
limit value is only exceeded for a short time (damping function).
If there are no limit value relays, the limit values can nevertheless be entered. The controller dis‐
plays the reactions described when a limit value transgression occurs
Limit value relay used as an actuator
If the relays are defined as actuators, then they react like control outputs. Example: In the event of
Pause being activated, or in the event of an alarm, an activated limit value relay is deactivated.
Existing limit value error with alarm
You can manually reset an existing limit value
error with alarm, for instance to enable a con‐
trolled restart of a system to ensure that the
limit value situation can be left.
If an alarm is pending, you can call up the
[System alerts]
menu from the continuous dis‐
play by pressing . Select the alarm in ques‐
tion and use
to reset. Resetting the alarm
cancels the limit value error/alarm. Checking of
the limit value criterion restarts in line with the
delay periods set. Metering is started if neces‐
sary.
Setting the
[Limit values]
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