Grundfos Hydro Multi-E Montage- Und Betriebsanleitung Seite 21

18. Technical data, Hydro Multi-E with
single-phase pumps
18.1 Supply voltage
3 × 400/230 V - 10 %/+ 10 %, 50/60 Hz, N, PE.
2
Cable: 0.5 - 1.5 mm .
See nameplate.
Recommended fuse size
Motor sizes from 0.37 to 1.1 kW: Max. 10 A.
Standard as well as quick-blow or slow-blow fuses may be used.
18.2 Leakage current
Motor size
[kW]
booster system
0.37 - 1.1
The leakage currents are measured in accordance with
EN 60355-1.
18.3 Inputs/outputs
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
2
Screened cable: 0.5 - 1.5 mm
Sensor signals
• Voltage signal
 50 kΩ (via internal voltage supply).
0-10 VDC, R
i
Tolerance: + 0 %/- 3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
• Current signal
= 175 Ω.
DC 0-20 mA/4-20 mA, R
i
Tolerance: + 0 %/- 3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
• Power supply to sensor:
+24 VDC, max. 40 mA.
Signal output
Potential-free changeover contact.
Maximum contact load: 250 VAC, 2 A.
Minimum contact load: 5 VDC, 10 mA.
2
Screened cable: 0.5 - 2.5 mm
Maximum cable length: 500 m.
Bus input
Grundfos bus protocol, GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
Number of
Leakage current
pumps in
[mA]
2 < 7
3 < 10.5
.
2
.
2
.
.
2
.
19. Technical data, Hydro Multi-E with
three-phase pumps
19.1 Supply voltage
3 × 380-480 V - 10 %/+ 10 %, 50/60 Hz, PE.
2
Cable: 6-10 mm .
See nameplate.
Recommended fuse size
Motor sizes from 1.5 to 5.5 kW: Max. 16 A.
Standard as well as quick-blow or slow-blow fuses may be used.
19.2 Leakage current
Motor size Number of pumps
[kW] in booster system
1.5 - 3.0
(supply voltage < 460 V)
1.5 - 3.0
(supply voltage > 460 V)
4.0 - 5.5
5.5, 4-pole
The leakage currents are measured in accordance with
EN 60355-1.
19.3 Inputs/outputs
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
2
Screened cable: 0.5 - 1.5 mm
Sensor signals
• Voltage signal
 50 kΩ (via internal voltage supply).
0-10 VDC, R
i
Tolerance: + 0 %/- 3 % at maximum voltage signal.
Screened cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
• Current signal
= 175 Ω.
DC 0-20 mA/4-20 mA, R
i
Tolerance: + 0 %/- 3 % at maximum current signal.
Screened cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
• Power supply to sensor:
+24 VDC, max. 40 mA.
Signal output
Potential-free changeover contact.
Maximum contact load: 250 VAC, 2 A.
Minimum contact load: 5 VDC, 10 mA.
2
Screened cable: 0.5 - 2.5 mm
Maximum cable length: 500 m.
Bus input
Grundfos bus protocol, GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm
Maximum cable length: 500 m.
Leakage
current
[mA]
2 < 7
3 < 10.5
2 < 10
3 < 15
2 < 10
3 < 15
2 < 20
3 < 30
.
2
.
2
.
.
2
.
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