Service manual

www.enc.net.cn/en Tel/Fax:[phone] Installation and wiring
15
(5) Input side EMI filter
Can use EMI filter to inhibit
high-frequency conduction
disturbance and emission
disturbance from inverter power
supply wire.
(6) Output side EMI filter
Can use EMI filter to inhibit
emission disturbance noise and
wire leakage current from output
side.
(7) AC output reactor
Advise assembling AC output
reactor to avoid motor insulation
damage, too large over current and
inverter frequent protection when
connecting wire from inverter to
motor exceeds 50m.But voltage drop
of AC output reactor must be
considered. Improve input output
voltage of the inverter or let
the motor in lower volume to avoid
burning off the motor.
(8) Complete ground wire
Inverter and motor must be earthed
and grounding resistor smaller than
10Ω.Grounding wire should be
shorter enough and wire diameter be bigger enough(not smaller than following
standard):7.5KW or below motor: 3.5mm² above copper wire;11～15KW motor:
8mm² above copper wire. 18.5～37KW motor 14mm² above copper wire; 45～
55KW motor: 22mm² above copper wire.
M
R
S
T
N
AC ouput reactor(in option)
Breaker or fuse
Braking resistor
Brake unit
(in option)
Fig.3-8 connection of inverter and fitting parts
Input EMI filter(in option)
Output EMI filter (in option)
Magnetic control conductor
AC input reactor(in option)
Isolation switch
V
W
PE
U
R
S
T
EDS1000