Inputs And Outputs; Sound Pressure Level; Disposal - Grundfos CUE Series Installation And Operating Instructions Manual

16.7 Inputs and outputs

16.7.1 Mains supply (L1, L2, L3)
Supply voltage
Supply voltage
Supply voltage
Supply voltage
Supply frequency
Maximum temporary imbalance between
phases
Leakage current to ground
Number of cut-ins, enclosure A
Number of cut-ins, enclosures B and C
Do not use the power supply for switching the
Note
CUE on and off.
16.7.2 Motor output (U, V, W)
Output voltage
Output frequency
Switching on output
1)
Output voltage in % of supply voltage.
2)
Depending on the pump family selected.
16.7.3 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).
16.7.4 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.
16.7.5 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).
46
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.
1)
0-100 %
2)
0-100 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 V DC 10 mA
24 V AC 20 mA
16.7.6 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".
All analog inputs are galvanically separated from the supply
voltage (PELV) and other high-voltage terminals.
16.7.7 Analog output
Analog output 1, terminal number
Current range
Maximum load to ground
Maximum fault
The analog output is galvanically separated from the supply
voltage (PELV) and other high-voltage terminals.
16.7.8 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
When using Pt100 with 3-wire cable, the
Note
resistance must not exceed 30 Ω.

16.8 Sound pressure level

The sound pressure of the CUE is maximum 70 dB(A).
The sound pressure level of a motor controlled by a variable
frequency drive may be higher than that of a corresponding motor
which is not controlled by a variable frequency drive. See section
6.7 RFI filters.

17. Disposal

This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
33
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
Subject to alterations.