Service manual

www.enc.net.cn/en Tel/Fax:[phone] Installation and wiring
14
Fig.3-6 banned magnetic control conductor and absorbing capacitance
between inverter and motor
3.4 Main loop terminal wiring
Fig.3-7 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.
3 phase
AC power
supply
R
S
T
U
W
PE
V M
EDS1000
3 phase breaker
U
EDS1000
V
W
M
!
(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
supply volt.，otherwise will cause personnel injured and device damaged.