Delta Electronics VFD-EL series User Manual

Chapter 1 Introduction
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Revision 2016/03, 6ELE, V1.14
1-5
Air flow
Frame A
Frame B
120mm
120mm
120mm
120mm
150mm
150mm
150mm
150mm
120mm
120mm
150mm
150mm
A
B
A
B
Frame A
Frame B
1.2.2 DC-bus Sharing: Connecting the DC-bus of the AC Motor Drives in Parallel
1. This function is not for 115V models.
2. The AC motor drives can absorb mutual voltage that generated to DC bus when deceleration.
3. Enhance brake function and stabilize the voltage of the DC bus.
4. The brake module can be added to enhance brake function after connecting in parallel.
5. Only the same power system can be connected in parallel.
6. It is recommended to connect 5 AC motor drives in parallel (no limit in horsepower).
Power 208/220/230/380/440/480 (depend on models)
power should be applied at the same time
(only the same power system can be connected in parallel)
For frame A and B, terminal + (-) is connected to the terminal + (-) of the braking module.
U V W U V W
U
V
W
U
V
W
IM IM
IM
IM
Braking
modules

Delta Electronics VFD-EL series Specifications

General

Brand	Delta Electronics
Model	VFD-EL series
Category	Media Converter
Language	English