Examples Of Connection - Grundfos MAGNA3 D Instrucciones De Instalación Y Operación

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8.9.1 Examples of connection

Connection to power supply, wire-to-wire-connected versions
Fig. 43 Example of wire-to-wire connections
Connections in the control box, wire-to-wire-connected versions
Analog input
Digital input
M
M
24V
IN
S/S
A
I
Vcc
Signal
Sensor
Fig. 44 Example of connections in the control box of wire-to-wire-connected versions
Note: Use C and NC for fault signals as this enables serial connections of more relays and detection of signal cable defects.
The connection terminals of wire-to-wire-connected versions (fig. 44) differ from those of terminal-connected versions (fig. 45), but they
have the same function and connection options.
External switch
Relay 1
Relay 2
NC NO C
NC NO C
Alarm
Operation
Use C and NC for fault signals
as this enables serial
connections of more relays
and detection of signal cable
defects.
Fuse
GFCI
33

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