C.TY TNHH TỰ ĐỘNG HÓA VIỆT TRUNG 02413.281.181-0989.984.666
Website:www.viet-trung.com.vn Đ/c:194-Nguyễn Trãi-Võ Cường-TP.Bắc Ninh
91
Troubleshooting
8.
Troubleshooting
Description of trouble Possible cause Solution
The motor does not
run at all
“OCPA” is indicated
1. Wiring error Refer to the wiring diagram
1. Check the power input wiring
2. Is there a voltage for U.V.W output
2. Wrong settings at operator panel The function code No.04 is as follows
0: Panel key operation
1: External signals
3. Inverter displays fault indication Refer to “Protect Function”
4. Motor cannot start due to overload Exchange a higher capacity one
5. Motor breaks down Repair motor
6. Inverter breaks down Please contact us
1. Motor wiring error Refer to the wiring diagram
as soon as the motor
2. Overload Reduce the load or increase inverter
is started.
capacity
(Overcurrent protects
3. Is V/F slope appropriate Check Code 05 V/F slope is appropriate
operation during
acceleration.)
with motor specification
4. Is start torque appropriate Adjust Code 07 torque boost to over come
steady friction but not over current trip.
5. Is the acceleration time too short
when compared to load GD
2
6. The inverter is starting during
motor free-run
Lengthen acceleration time by apply Code
08 and Code 10 or increase inverter
capacity
Refers to Code 28, change the value from 0
to 1
“OCPd” is indicated
1. Deceleration time too short, unable Apply Code 09 and Code 11 to lengthen
as the motor is
decelerating. (Over
current protects
operation during
deceleration).
“OC” or “OCS” is
indicated during
operation. (Over
current)
to be loaded
1. Short circuit on U.V.W or
grounding for motor
2. Instantaneously mechanical load
on motor
deceleration time or increase inverter
capacity
Exclude short circuit or grounding
Reduce load or increase inverter capacity
To Next Page
Loading...
Need help?
General
