7.2.1.1.2 Fault indicating and pacing relay option
The first switch is a relay. The pacing output is electrically-isolated by
means of an optocoupler with a semiconductor switch.
If another switching function is required, the pump can be reprogrammed
in the
‘Relay’
menu.
The relay can be retrofitted and is operational once it has been plugged
into the relay board.
Data Value Unit
Maximum contact load at 24 V and 50/60
Hz:
100 mA
Minimum mechanical service life: 200,000 switching
operations
Data Value Unit
Residual voltage max. at I
off max
= 1 µA 0.4 V
Maximum current 100 mA
Maximum voltage 24 VDC
Closing time 100 ms
Pin assignment
To pin VDE cable Contact Relay
1 yellow NC (normally closed) or
NO (normally open)
Fault indi‐
cating relay
4 green C (common) Fault indi‐
cating relay
3 white NC (normally closed) or
NO (normally open)
Pacing relay
2 brown C (common) Pacing relay
Fig. 24: Pump assignment
Fault indicating relay (24 V)
Pacing relay
Fault indicating and pacing relay option
Fig. 25: Cable assignment
Installation
34
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