48
Table 4.1.2: Error Code Troubleshooting
Protective
Functions
Causes Solutions
Over-Current
Protection
1.
Faster acceleration and
deceleration time than load inertia
requirements.
2.
Larger load than the rated
capacity of the drive.
3.
Driving while motor coasting.
4.
Traverse worm gear speed
reducer using default stop mode,
F20
(1: Ramp to Stop)
1.
Extend acceleration and deceleration
time (User Function 7 & 8).
2.
Upgrade the drive capacity.
3.
Start driving after motor stops.
4.
Set
F20
, Stop Mode to (2: Immediate
Stop).
Over-Voltage
Protection
1.
Too short of deceleration time
compared to load inertia.
2.
Excessive regenerative energy on
the load side of drive.
3.
Excessively high input voltage.
4.
Noisy electrical environment.
1.
Extend deceleration time (User Function
8).
2.
Check Dynamic Braking Resistance.
3.
Check the input power supply.
4.
Correct input power or add 3%
impedance line reactor.
Current Limit
Protection
(OLt)
1.
Larger load than the drive’s rated
capacity.
2.
Incorrect setting of the drive
capacity.
3.
Incorrect setting of V/F pattern.
4.
Bumping fixed objects.
1.
Upgrade the motor and the drive
capacity in accordance with the load.
2.
Reset the drive capacity (F8).
3.
Adjust V/F pattern (F14 and/or H2 – H5).
4.
Verify OLt time duration is adequate for
application.
Heat-Sink
Overheat
1.
Failed cooling fan or foreign
object in the fan.
2.
An abnormal condition in the
cooling system.
3.
High ambient temperature.
1.
Remove the foreign object, or replace the
cooling fan.
2.
Check the heat-sink fins.
3. a.
Lower the ambient temperature below
104
°
F (40
°
C)
b.
Ventilate or air condition control
enclosure
Electronic
Thermal Detection
(EtH)
1.
Larger load than the rated current
of the drive.
2.
Low ETH level.
3.
Error in setting the drive capacity.
4.
Error in setting the V/F pattern.
1.
Replace drive, or upgrade the capacity.
2.
Adjust EtH level (H32). See Section
5.3.10.
3.
Reset the drive capacity (F8).
4.
Adjust V/F pattern (F14 and/or H2 – H5).
Phase
Fault
1.
One of the output wires from (U,
V, W) to motor is open.
2.
Setpoint of Motor No Load
Current is too high.
1.
Make sure the motor leads are
connected tightly at drive terminals (U,
V, W) and at motor.
2.
Verify motor data and adjust H20, H21
and H22 as necessary. See Section 3.3.
Low Voltage
Protection
1.
Low voltage input supply.
2.
Larger load than the rated power
capacity of the drive.
3.
Faulty magnetic mainline
contactor in power circuit.
1.
Check the input power voltage.
2.
Upgrade power capacity.
3.
Replace magnetic mainline contactor.
To Next Page
Loading...
Need help?
General