Service manual

www.enc.net.cn/en Tel/Fax:[phone] Safety information and use notice points
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inverter output and the motor, please guarantee the inverter is switched on/off
without output, otherwise may damage the inverter.
(8) The inverter may meet with mechanical resonance of the load within certain
range of frequency output, can set up jumping frequency to evade.
(9) Before using, should confirm the voltage of the power is within the working
voltage range allowed, otherwise should vary voltage or order special inverter.
(10) In the condition of altitude above 1000 meters, should use the inverter in
lower volume, reduce output current by 10% of specified current after each
1500 meters height increasing.
(11) Should make insulation check to the motor before using it for the first time
or after a long time placement. Please inspect with 500V voltage-type
megohm meter according to method shown as graph 1-1 and insulation
resistance should not be smaller than 5 MΩ, otherwise inverter may be
damaged.
(12) To forbid assembling capacitor for improving power factor or lightningproof
voltage-sensible resistance etc., otherwise will cause malfunction trip of the
inverter or damage of the parts, shown as graph 1-2.
Fig.1-1 motor insulation measure Fig.1-2 capacitor at output side forbidden
1.4 Scrap notice points
When disposing scrap inverter and its parts, please note:
(1) The unit: please discard as industrial useless.
(2) Electrolytic capacitor: when burning the inverter electrolytic capacitor
in it may explode.
(3) Plastic: when plastic, rubber parts etc. in the inverter are burning, they
may bring bad, poisonous gas, so please be ready to safeguards.
EDS2000
U
V
W
M
EDS1000
EDS1000
motor
Grounding part
Megohm meter
After wiring, short-circuit U,
V, W to measure insulation
resistance.
U
V
W