22
14.3 Inputs/output
Start/stop
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Setpoint signals
• Potentiometer
0-10 VDC, 10 k
Ω
(via internal voltage supply).
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 100 m.
• Voltage signal
0-10 VDC, R
i
>
50 k
Ω.
Tolerance: +0 %/–3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 500 m.
• Current signal
DC 0-20 mA/4-20 mA, R
i
= 175
Ω.
Tolerance: +0 %/–3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 500 m.
Sensor signals
• Voltage signal
0-10 VDC, R
i
>
50 k
Ω
(via internal voltage supply).
Tolerance: +0 %/–3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 500 m.
• Current signal
DC 0-20 mA/4-20 mA, R
i
= 175
Ω
.
Tolerance: +0 %/–3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 500 m.
• Electricity supply to sensor:
+24 VDC, max. 40 mA.
+10 VDC, max. 2,5 mA.
Signal output
Potential-free changeover contact.
Maximum contact load: 250 VAC, 2 A.
Minimum contact load: 5 VDC, 10 mA.
Screened cable: 0.5 - 2.5 mm² / 28-12 AWG.
Maximum cable length: 500 m.
Bus input
Grundfos bus protocol, GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm² / 28-16 AWG.
Maximum cable length: 500 m.
15. Technical data – three-phase pumps,
11-22 kW
15.1 Supply voltage
3 x 380-415 V ±10 %, 50/60 Hz, PE.
Cable: Max. 10 mm².
See nameplate.
Recommended fuse sizes
Standard as well as quick-blow or slow-blow fuses may be used.
15.2 Leakage current
Earth leakage current > 30 mA.
The leakage currents are measured in accordance with
EN 60 355-1.
15.3 Inputs/output
Start/stop
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm².
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm².
Setpoint signals
• Potentiometer
0-5 VDC, 10 k
Ω
(via internal voltage supply).
Screened cable: 0.5 - 1.5 mm².
Maximum cable length: 100 m.
• Voltage signal
0-5 VDC/0-10 VDC, R
i
>
50 k
Ω.
Tolerance: +0 %/–3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm².
Maximum cable length: 500 m.
• Current signal
DC 0-20 mA/4-20 mA, R
i
= 250
Ω.
Tolerance: +0 %/–3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm².
Maximum cable length: 500 m.
Sensor signals
• Voltage signal
0-5 VDC/0-10 VDC, R
i
>
50 k
Ω
(via internal voltage supply).
Tolerance: +0 %/–3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm².
Maximum cable length: 500 m.
• Current signal
DC 0-20 mA/4-20 mA, R
i
= 250
Ω
.
Tolerance: +0 %/–3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm².
Maximum cable length: 500 m.
• Electricity supply to sensor:
+24 VDC, max. 40 mA.
+5 VDC, max. 5 mA.
Signal relay output
Potential-free changeover contact.
Maximum contact load: 250 VAC, 2 A.
Minimum contact load: 5 VDC, 10 mA.
Screened cable: 0.5 - 2.5 mm².
Maximum cable length: 500 m.
Bus input
Grundfos bus protocol, GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm².
Maximum cable length: 500 m.
Motor size [kW]
Max. [A]
11
25
15
35
18.5
50
22
50
Grundfos.bk Page 22 Tuesday, April 17, 2007 8:54 AM
