Dutypoint VT Booster Set, Руководство по эксплуатации и обслуживанию, Страница: 119 / 123

English (GB)
20
16. Megging
17. Technical data - single-phase motors
17.1 Supply voltage
• 1 x 230-240 V ± 10 %, 50/60 Hz, PE.
• 1 x 200-220 V ± 10 %, 50/60 Hz, PE.
Cable: 1.5 mm
2
/ 14-12 AWG.
See nameplate.
Recommended fuse size
Standard as well as quick-blow or slow-blow fuses may be used.
17.2 Leakage current
Earth leakage current < 3.5 mA.
The leakage currents are measured in accordance with
EN 60355-1.
17.3 Inputs/output
Start/stop
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Setpoint signals
• Potentiometer
0-10 VDC, 10 k
Ω
(via internal voltage supply).
Screened cable: 0.5 - 1.5 mm
2
/ 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 mm
2
/ 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 mm
2
/ 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 mm
2
/ 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 mm
2
/ 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 mm
2
/ 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 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
18. Technical data - three-phase motors
18.1 Supply voltage
• 3 x 380-480 V ± 10 %, 50/60 Hz, PE.
Cable: 6-10 mm
2
/ 10-8 AWG.
See nameplate.
Recommended fuse size
Standard as well as quick-blow or slow-blow fuses may be used.
18.2 Leakage current
The leakage currents are measured in accordance with
EN 60355-1.
18.3 Inputs/output
Start/stop
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Digital
External potential-free switch.
Voltage: 5 VDC.
Current: < 5 mA.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Setpoint signals
• Potentiometer
0-10 VDC, 10 k
Ω
(via internal voltage supply).
Screened cable: 0.5 - 1.5 mm
2
/ 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 mm
2
/ 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 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
Note
Megging of an installation incorporating MGE
motors is not allowed, as the built-in electronics
may be damaged.
Motor size
[kW]
Min.
[A]
Max.
[A]
0.18 to 0.37 6 10
0.55 to 1.1 10 10
Motor size
[kW]
Min.
[A]
Max.
[A]
0.75 to 3.0 10 16
4.0 to 5.5 16 16
7.5 25 32
Motor size
[kW]
Leakage current
[mA]
0.75 to 3.0 (supply voltage < 460 V)
0.75 to 3.0 (supply voltage > 460 V) < 3.5
< 5
4.0 to 5.5
5.5, 4-pole
< 5
< 10
7.5 < 10