Instruction Manual PUC 28
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5.5.2 Relay activation and deactivation delays [ RELAY / TIME REL. ]
A separate activation delay and deactivation delay can be set for each of the two relays.
Please keep in mind that the activation delay of the relay is the same as the deactivation
delay.
Parameter
Applies to
Range of values
Default setting
Time 1
Relay 1
0 ... 240 s
5 s
Time 2
Relay 2
0 ... 240 s
5 s
Table 18: Activation and deactivation delay parameter description
Example:
With an activation and deactivation delay of 5 s, there are three possible alarm
sequences shown in the following figure.
1. The duration of the alarm state is shorter than the activation and deactivation
delay:
The acoustic alarm is triggered immediately once the limit is passed (alarm state).
As the response delay is shorter than the duration of when the limit is passed, the
corresponding relay does not switch. The acoustic alarm is switched off
immediately when the alarm state no longer exists.
2. The duration of the alarm state is longer than the activation and deactivation
delay and the alarm is not confirmed:
The acoustic alarm is triggered immediately once the limit is passed (alarm state).
After the response delay of 5 s, the appropriate relay switches. Once the cause of
the alarm is no longer present, the acoustic alarm is switched off immediately. The
relay switches off after the deactivation delay of 5 s.
3. The duration of the alarm state is longer than the activation and deactivation
delay but the alarm is confirmed:
The acoustic alarm is triggered immediately once the limit is passed (alarm state).
After the response delay of 5 s, the appropriate relay switches. The
acknowledgement deactivates the acoustic alarm and the relay immediately.
Fig. 15: The three possible alarm sequences with an activation and deactivation delay of 5 s
