Electrical interface
Specification Value
Supply voltage, approx.: +5 V, can be loaded to 20 mA (cur‐
rent limitation 150 mA)
Power consumption: min. 10 mA, max. 20 mA (sensor
presence detection)
Sensor signal: potential-free contact (load: 0.5 mA
at +5 V) or
semiconductor switch (residual
voltage < 0.3 V)
Pin Function 4-wire cable
1 Power supply (5 V) brown
2 not assigned white
3 Sensor signal blue
4 Earth GND black
9.3.6 Relays
9.3.6.1
Relay functions
Tab. 6: gamma/ XL GXLa
Identity code Designation Type Maximum
voltage
Maximum cur‐
rent
Operational life‐
time
Min. switching
operations
0 no relay - - - -
1 Fault indicating
relay, N/C
Changeover
contact
230 V AC 6 A 50 000
4 Fault indicating
relay, N/C
Pacing relay, nor‐
mally open
N/C
N/O
24 V DC
24 V DC
1 A
100 mA
50 000
unlimited
C 4-20 mA current
output
Fault indicating
relay, N/C
-
N/C
-
24 V DC
-
100 mA
-
unlimited
F Automatic
bleeding
Changeover
contact
230 V AC 6 A 50 000
G Automatic
bleeding
Fault indicating
relay, N/C
N/O
N/C
24 V DC
24 V DC
1 A
100 mA
50 000
unlimited
You can reprogram the relays to these types:
Fig. 22: Assignment on the pump
Fig. 23: Assignment on the cable
Relay type
Installation, electrical
42