HNC Electric HV590 Series, User Manual

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Section VI. Fault Diagnosis & Solutions
+24V jumper loosening, control
board fault PLC and +24V jumper, consultthe
manufacturer.
8
Closed loop vector
control, motor speed
cannot ascend Encoder fault; PG card fault;
drive board fault; encoder wrong
connection or poor contact
Replace encoder&reconfirm connections;
replace PG card; consultmanufacturer.
9
The inverter frequently
reports over current
fault & over voltage
fault
Motor wrongly set
parameters,improper acc./dec.
time, load fluctuation Reset motor parameters or motor tuning,
set proper
acc./dec.time,consultmanufacturer.
Caution
：
※
After power off and within 5 minutes of charging indicator light(
！
CHARGE)out , please do
not touch any spare parts inside the machine. The operator must use instrument to confirm
capacitor discharge is comleted, then could implement machine operation, or there may be
electric shock risk!
※
Please do not touch the printed circuit board and IGBT etc internal device without
electrostatic prevention measures. Or it could lead to the damage of components.