Electrical Data - Grundfos CUE Series Installation And Operating Instructions Manual

12.4 Electrical data

Mains supply (L1, L2, L3)
Supply voltage
Supply voltage
Supply voltage
Supply voltage
Supply frequency
Maximum temporary imbalance between
phases
Leakage current to protective earth
Number of cut-ins, enclosure A
Number of cut-ins, enclosures B and C
Do not use the power supply for switching CUE on
and off.
Motor output (U, V, W)
Output voltage
Output frequency
Switching on output
1)
Output voltage in percentage of supply voltage.
2)
Depending on the pump family selected.
RS-485 GENIbus connection
Terminal number
The RS-485 circuit is functionally separated from other central
circuits and galvanically separated from the supply voltage
(PELV).
Digital inputs
Terminal number
Voltage level
Voltage level, open contact
Voltage level, closed contact
Maximum voltage on input
Input resistance, R
i
All digital inputs are galvanically separated from the supply
voltage (PELV) and other high-voltage terminals.
Signal relays
Relay 01, terminal number
Relay 02, terminal number
Maximum terminal load (AC-1)
Maximum terminal load (AC-15)
Maximum terminal load (DC-1)
Minimum terminal load
1)
IEC 60947, parts 4 and 5.
C Common
NO Normally open
NC Normally closed
The relay contacts are galvanically separated from other circuits
by reinforced insulation (PELV).
200-240 V ± 10 %
380-500 V ± 10 %
525-600 V ± 10 %
525-690 V ± 10 %
50/60 Hz
3 % of rated value
> 3.5 mA
Max. 2 times/min.
Max. 1 time/min.
0-100 %
0-590 Hz
Not recommended
68 (A), 69 (B), 61 GND (Y)
18, 19, 32, 33
0-24 VDC
> 19 VDC
< 14 VDC
28 VDC
Approx. 4 kΩ
1 (C), 2 (NO), 3 (NC)
4 (C), 5 (NO), 6 (NC)
1)
240 VAC, 2 A
1)
240 VAC, 0.2 A
1)
50 VDC, 1 A
24 VDC 10 mA
24 VAC 20 mA
Analog inputs
Analog input 1, terminal number
Voltage signal
Voltage range
Input resistance, R
i
Maximum voltage
Current signal
Current range
Input resistance, R
i
Maximum current
Maximum fault, terminals 53, 54
Analog input 2, terminal number
Current signal
Current range
Input resistance, R
i
Maximum current
Maximum fault, terminals 53, 54
1)
The factory setting is voltage signal "U".
1)
All analog inputs are galvanically separated from the supply
2)
voltage (PELV) and other high-voltage terminals.
Analog output
Analog output 1, terminal number
Current range
Maximum load to frame
Maximum fault
The analog output is galvanically separated from the supply
voltage (PELV) and other high-voltage terminals.
MCB 114 sensor input module
Analog input 3, terminal number
Current range
Input resistance
Analog inputs 4 and 5, terminal number
Signal type, 2- or 3-wire
53
1)
A53 = "U"
0-10 V
Approx. 10 kΩ
± 20 V
1)
A53 = "I"
0-20, 4-20 mA
Approx. 200 Ω
30 mA
0.5 % of full scale
54
1)
A54 = "I"
0-20, 4-20 mA
Approx. 200 Ω
30 mA
0.5 % of full scale
42
0-20 mA
500 Ω
0.8 % of full scale
2
0/4-20 mA
< 200 Ω
4, 5 and 7, 8
Pt100/Pt1000
31