Function
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ASD 531, Technical description, T 140 416 en
2.2.5
Displays
The following events are indicated by LEDs on the control unit:
•
operation, fault, alarm, pre-signal 1 – pre-signal 3, detector dusty, detector dirty
Depending on the event, the LEDs are either continuously lit or flash at different frequencies (see Sec. 8.5).
2.2.6
Relay
The ASD 531 has several relays with potential-free change-over contacts with the following assignments (RIM 36 optional):
Unit
Relay designation
Function, events
AMB 31
Rel. 1:
Fault
Fault (all events)
ASD inactive
Rel. 2:
Alarm
Smoke sensor alarm release
RIM 36
(from AMB 31)
Rel. 1
Pre-signal 1 from the smoke sensor
Rel. 2
Pre-signal 2 from the smoke sensor
Rel. 3
Pre-signal 3 from the smoke sensor
Rel. 4
Smoke sensor dirt, smoke sensor dust,
Smoke sensor fault
Rel. 5
Sampling tube blockage, sampling tube interruption, fan fault
Notice
The “Fault” relay has picked up in the release state
contact Te. 12/10 closed, 12/11 open (ASD 531 under
voltage; no fault event present).
