Electrical interface
for fault indicating relay output:
Data
Value Unit
Maximum contact load at 24 V and 50/60
Hz:
2 A
Minimum mechanical lifespan:
20,000,000 switching
operations
for semiconductor switch pacing relay:
Data
Value Unit
Max. residual voltage at I
off max
= 1 µA
0.4 V
Maximum current
100 mA
Maximum voltage
24 VDC
Pacing pulse duration, approx.
100 ms
To pin
VDE cable
Contact
Relay
1
yellow
NO (normally open)
other relay
4
green
C (common)
other relay
3
white
NO (normally open)
Pacing relay
2
brown
C (common)
Pacing relay
9.2.5.4
Output "Current output plus relay" (identity code C)
A relay combined with a current output can optionally be ordered. The
relay either switches off the pump as a fault indicating relay in the event of
a fault on the pump and with "Liquid level low 1st stage" warning message
and "Liquid level low 2nd stage" fault messages or is used as a pacing
relay.
The behaviour is factory-programmed. If another switching function is
required, the pump can be reprogrammed in the
‘Relay’
menu.
In the
‘ANALOG OUTPUT’
menu, the variable to be signalled by the cur‐
rent output can be selected.
The current output plus relay can be retrofitted and operates once it is
plugged into the board.
P_SI_0044
Fig. 24: Cable assignment
Identity code 4
2
3
1
4
P_G_0073_SW
Fig. 25: Pump assignment
Installation, Electrical
40
