Main Loop Terminal Wiring - EASY DRIVE ED3000 Series Use Manual

ED3000 系列高性能通用变频器使用说明书
(1) Before wiring, assure power supply is cut off completely for 10 minutes and all LED
indicator light extinguished.
(2) Before internal wiring, confirm that DC volt. Between main loop end P+ and P- fall down
to below DC36V.
(3) Wiring can only be done by professional person trained and qualified.
(4) Before electrification, check if voltage grade of the inverter is in line with that of power supple
volt., otherwise will cause personnel injured and device damaged.

3.4 Main loop terminal 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
breaker
AC
power
fig.3-3 main loop simple wiring
- -
20
ED3000
R(R)
S
T(T)
R
S
T
N
Isolation switch
Breaker or fuse
Magnetic
R S T
ED3000
U
V
W
E
M
U
V
M
W
E
AC input reactor(in option)
control
Input EMI filter(in
On put EMI filter(in optio
AC putput reactor(in
n)