Grundfos CU 351 - Digital Input Specifications; Analog Input Specifications; Digital Output (Relay) Specifications; Conductor Specifications

English (GB)
12
9.1 Digital inputs
9.2 Analog inputs
9.3 Digital outputs (relay outputs)
9.4 Conductors
9.5 Terminal groups
Fig. 9 Terminal groups
The terminals of the groups 2, 3, 4 and 5 are
insulated from all other terminal groups by reinforced
insulation, 2224 VAC.
All control terminals in group 2, 3, 4 and 5 are
supplied with PELV voltage (Protective Extra-Low
Voltage).
Open circuit voltage: 24 VDC
Closed circuit current: 5 mA, DC
Frequency range: 0-4 Hz
Input current and voltage:
0-20 mA
4-20 mA
0-10 V
Tolerance:
± 3.3 % of full
scale
Repetitive accuracy: ± 1 % of full scale
Input resistance, current: < 250 Ω
Input resistance, voltage: 10 kΩ ± 10 %
Supply to sensor:
24 V, maximum
50 mA, short-
circuit protected
NO contacts: C, NO
Maximum contact load: 240 VAC, 2 A
Minimum contact load: 5 VDC, 10 mA
Rigid conductors
0.5 - 2.5 mm
2
20-13 AWG (US)
Flexible conductors without
ferrule
Flexible conductors with
ferrule
With/without plastic collar
0.5 - 1.5 mm
2
20-13 AWG (US)
TM03 2236 4005
Group 1 Connection of supply voltage
Group 2 Internal GENIbus connection
Group 3
External GENIbus connection
(not standard)
Group 4 Digital inputs
Group 5 Analog inputs
Group 6 Digital outputs
A1 Y1 B1
10 11 12 13 14
6
5
43 2 1
70
71
72
73
74
75
50
51
53
54
57
58
LN
BYA