gefran VDI100 Series User Manual

3.13. Input Power and Motor Cable Length
The length of the cables between the input power source and /or the motor and inverter can cause a signicant
phase to phase voltage reduction due to the voltage drop across the cables. The wire size shown in Tables
3.16.1 is based on a maximum voltage drop of 2%. If this value is exceeded, a wire size having larger diameter
may be needed. To calculate phase tot phase voltage drop, apply the following formula:
Phase-to-phasevoltagedrop(V)=√3×resistanceofwire(Ω/km)×lengthofline(m)×current(A)×10-3.
(km=3280xfeet)
(m=3.28xfeet)
3.14. Motor Cable Length vs. Carrier Frequency
The allowable setting of the PWM carrier frequency is also determined by motor cable length and is specied in
the following Table 3.14.1.
Table3.14.1:CableLengthvs.CarrierFrequency
Cable length between
the inverter and
< 30m 30 – 50 50 – 100 > 100
Motor in m (ft.). -100 (100 – 165) (166 - 328) -329
Recommended carrier
frequency allowed
Parameter 11-01
16kHz (max) 10 kHz (max) 5 kHz (max) 2 kHz (max)
3.15. Installing an AC Line Reactor
If the inverter is connected to a large-capacity power source (600kVA or more), install an optional AC reactor on
the input side of the inverter. This also improves the power factor on the power supply side
3.16. Wire Section
The following table shows the recommended wire section for each of the VDI100 models. It depends on the
application whether or not to install a circuit breaker.
Note ! When using a ground protection make sure the current setting is above 200mA and trip delay time is 0.1 sec of higher.
Table3.16.1:
Wiresection
Class VDI100 Model
Wire section (mm
2
)
Main circuit
(2)
Grounding line
E(G)
Control line
(3)
230V
1ph / 3ph
VDI100-1007-KBX-2T 2,5
~6 2,5~6 0.5~2,5
VDI100-1015-KBX-2T 2,5
~6 4~6 0.5~2,5
VDI100-2022-KBX-2T 4
~6 4~6 0.5~2,5
230V
3 ph
VDI100-2037-KBX-2T 6 6
0.5~2,5
VDI100-2055-KBX-2T 10 6
~10 0.5~2,5
VDI100-3075-KBX-2T 10 6
~10 0.5~2,5
VDI100-4110-KBX-2T 16 10
0.5~2,5
VDI100-4150-KBX-2T 25 10
0.5~2,5
VDI100-4185-KBX-2T 25 16
0.5~2,5
VDI100-5220-KXX-2T 35 16
0.5~2,5
VDI100 • Instruction manual 31

gefran VDI100 Series Specifications

General

Brand	gefran
Model	VDI100 Series
Category	Inverter
Language	English