9.4.2 “Fault indicating relay” output (identity code 1 + 3)
A fault indicating relay can optionally be ordered. It is used to emit
a signal when there is a fault with the pump and for the “Liquid
level low, 1st stage” warning message and “Liquid level low 2nd
stage" fault message.
The fault indicating relay can be retrofitted and is operational once
attached to the relay board - refer to the “Operating instructions for
retrofitting relays for Beta b“.
Pin assignment
To pin
VDE cable
Contact
CSA cable
1
white
NO (normally open)
white
2
green
NC (normally closed)
red
4
brown
C (common)
black
The polarity of the connectors is as required.
9.4.3 “Fault indicating relay + Pacing relay” and/or “Warning relay”, “Cut-off relay” output
(identity code 4 + 5, A + B)
A fault indicating / pacing relay or a warning relay or cut-off relay
can optionally be ordered. The pacing output is electrically isolated
by means of an optocoupler with a semiconductor switch. The
second switch is a relay.
The fault indicating / pacing relay or warning relay or cut-off relay
can be retrofitted and is operational once attached to the relay
board - refer to the “Operating instructions for retrofitting relays for
Beta b“.
2
3
1
4
P_SI_0010_SW
Fig. 13: Assignment on the pump
Identity code 1 + 3
P_SI_0043
Fig. 14: Assignment on the cable
Electrical installation
36
