Installation and wiring
10
3.2 Parts disassembly and installation
3.2.1 Key board disassembly and installation
(1) Disassembly
Let the forefinger press finger inlet on the keypad, Depress fixing flexible plate
on the top lightly, Draw it outward, then you can disassemble the keypad.
(2) Assembly
First place the fixing hook at the bottom of keypad onto mounting claw on
keypad mounting hole, let forefinger press fixing flexible plate on top of keypad and
then push it inside, release it in proper location (after a crisp sound).
3.2.2 Plastic cover disassembly
Put the finger into handle hole on the bottom of cover, lift it, then you can
disassemble the cover.
3.3 Wiring notice points
(1) Assure power cut off completely for above 10 minutes before wiring,
otherwise have danger of getting electric shock.
(2) Forbid connecting power wire to output U, V, W of the inverter.
(3) There is current leakage in the inverter and leak current of middle/high power
inverter is bigger than 5mA, for safety reason
，
inverter and motor must be
earthed safely, commonly use 3.5mm² above copper wire as ground wire and
ground resistance smaller than 10
Ω
.
(4) Before shipment compression resistance test of the inverter is passed
，
so user
should not conduct compression resistance test again.
(5) Should not assemble electromagnetic contactor and absorbing capacitance or
other absorbing device, see Fig.3-3.
(6) To be convenient to over current protect of input side and power off
maintenance inverter should be connected to power supply through relay.
(7) Connecting wire for relay input and output loop(X1, X2, FWD, REV), should
use above 0.75mm² glued wire or shielding wire
，
one shielding layer end hung
in the air, the other connected to grounding end , connecting wire shorter than
20m.
!
(1) Before wiring, assure power supply is cut off completely for 10 minutes and all
LED indicator light extinguished.
(2) Wiring can only be done by professional person trained and qualified.
(3) 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.
!
ENC
