Grundfos SmartFlo - Transducer Wiring

5. Transducer wiring
The type of the supplied transducer: 24 VDC, 4-20 mA, 2-wire with a braided shield.
The brown wire (+ 24 VDC) must to be connected to terminal 12.
The black wire (signal) must to be connected to terminal 54.
The braided shield must be attached to the chassis of the VFD, as seen below.
TM056003
Transducer wiring
U: 0-10 V
I: 0/4-20 mA
61
68
69
61
68
69
39
42
50
53
54
55
12
13
18
19
27
29
32
33
20
37
A53
A54
U
I
U
I
RS-485 GND Y
Black
Brown
RS-485 A
RS-485 B
+24 V out +24 V out DI 1 DI 2 DI/O 1 DI/O 2 DI 3 DI 4 GND Safe stop
GND
Sensor
GND
Ext. setpoint
AO 1
+10 V out
TM081108
Wiring diagram, two-wire sensor
If the warning "LIVE ZERO" is displayed on the Local Control Panel, check the transducer connections at terminals 12 and 54.
9
English (US)