External Connections - Grundfos MAGNA3 D Installation And Operating Instructions Manual

8.9 External connections

Fig. 40 Wiring diagram, terminal-connected versions
Analog input Digital input
M M S/S
24V IN
A I
Signal
Vcc
Sensor
Fig. 41 Wiring diagram, models with wire-to-wire connections
Relay 1 Relay 2
NC NO C
NC NO C
Operation Alarm
Use C and NC for fault signals
as this enables serial
connections of more relays
and detection of signal cable
defects.
Pos. 3
Max.
24 V DC
24V N
22 mA
Vcc
Signal
0 - 10 V DC
Vcc
Signal
4 - 20 mA
Pos. 2
M M
S/S
A
Max.
250 V AC
2 A AC1
Min.
5 V DC
20 mA
NC N0 C
Pos. 1
31