Installation and wiring
11
Fig.3-3 Banned magnetic control conductor and absorbing
capacitance between inverter and motor
3.4 Main loop terminal wiring
Fig.3-4 Main loop simple wiring
3.4.1 Connection between inverter and fitting parts
(1) Must assemble disjunction device such as isolation switch etc. between power
source and the inverter to assure personal safety when repairing the inverter and
needing compulsory power off.
(2) Power supply loop must have breaker or fuse with over current protection
function to avoid malfunction expanding caused by failure of after device.
(3) AC input reactor
If high-order harmonics between inverter and Power supply is biggish which can’t
fulfil system requirement, or need to improve input side power factor, AC input
reactor is needed.
(4) Magnetic control conductor only be applied to power supply control and don’t
apply magnetic control conductor to controlling on/off of the inverter.
(5) Input side EMI filter
Can use EMI filter to inhibit high-frequency conduction disturbance and emission
disturbance from inverter power supply wire.
U
Inverter
V
W
M
Power
Supply
L1
L2
L3
U
V
EDS300
W
M
3 Phase Breaker
ENC