Schematic Diagram; Terminals - Grundfos CUE Series Service Instructions Manual

2.3 Schematic diagram

CUE
Supply
Ext. I/O, relays
External control circuit
Fig. 2 Schematic diagram

2.4 Terminals

The physical position of the terminals depends on the enclosure
of CUE. See the CUE installation and operating instructions.
2.4.1 Mains and motor connection
The wires in the terminal box must be as short as possible.
Excepted from this is the protective earth conductor which must
be so long that it is the last one to be disconnected in case the
cable is inadvertently pulled out of the cable entry.
Fig. 3 Wiring diagram, mains and motor terminals
2.4.2 Wiring diagram, signal terminals
0/4-20 mA
54
12
12
0-10 V 0-10 V
53
1 K
55
55
61 68 69
61 68 69 39 42 50 53 54 55
12 13 18 19 27 29
Fig. 4 Wiring diagram, signal terminals
0/4-20 mA
Terminals 53
and 54
A53 A54
The setting
must
correspond to
the signal type
in question:
U: Voltage
I: Current
32 33 20 37
Filter
M
Terminal Function
91 (L1)
92 (L2) Three-phase supply
93 (L3)
95/99 (PE) Earth connection
96 (U)
Three-phase motor connection, 0-100 % of mains
97 (V)
voltage
98 (W)
Terminal Type
12 +24 V out
13 +24 V out
18 DI 1
19 DI 2
20 GND
27 DI/O 1
29 DI/O 2
32 DI 3
33 DI 4
37 Safe stop
39 GND
42 AO 1
50 +10 V out
53 AI 1
54 AI 2
55 GND
61 RS-485 GND Y GENIbus, screen (frame)
68 RS-485 A
69 RS-485 B
Sensors
Function
Supply to sensor
Additional supply
Digital input, programmable
Digital input, programmable
Common frame for digital inputs
Digital input/output, programmable
Digital input/output, programmable
Digital input, programmable
Digital input, programmable
Safe stop
Frame for analog output
Analog output, 0-20 mA
Supply to potentiometer
External setpoint, 0-10 V
Sensor input, sensor 1, 0/4-20 mA
Common frame for analog inputs
GENIbus, signal A (+)
GENIbus, signal B (-)
5