Chapter 3 Start Up
VFD-E Series
2-22 Revision August 2006, 01EE, SW--PW V1.03/CTL V2.03
2.7 Connected the DC BUS of the AC Motor Drives in Parallel
1. The AC motor drives can absorb mutual voltage that generated to DC bus when
deceleration
2. Enhance brake function and stabilize the voltage of the DC bus
3. The brake module can be added to enhance brake function after connecting in parallel
4. Only the same power system can be connected in parallel
5. It is recommended to connect 5 AC motor drives in parallel (no limit in horsepower)
IM IM IM IM
Power 115/208/220/230/380/440/480
(depend on models)
Brake
module
power should be applied at the same time
(only the same power system can be connected
in parallel)
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