Watt Drive V2500 Series, Руководство пользователя

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CHAPTER 7: TROUBLESHOOTING AND FAULT INFORMATION
7-2
Fault Name Fault Descriptions
Corrective Actions
The AC drive detects that
the DC bus voltage has
fallen below its minimum
value.
Check whether the input voltage falls within the
rated AC drive’s input voltage.
The AC drive detects
excessive drive output
current.
Note: The AC drive can
withstand up to 150% of
the rated current for a
maximum of 60 seconds.
1. Check whether the motor is overloaded.
2. Reduce torque compensation setting as set
in Pr.7-02.
3. Increase the AC drive’s output capacity.
Internal electronic
overload trip
1. Check for possible motor overload.
2. Check electronic thermal overload setting.
3. Increase motor capacity.
4. Reduce the current level so that the drive
output current does not exceed the value set
by the Motor Rated Current Pr.7-00.
Motor overload. Check
the parameter settings
(Pr.6-03 to Pr.6-05) 1. Reduce the motor load.
2. Adjust the over-torque detection setting to
an appropriate setting (Pr.06-03 to
Pr.06-05).
Communication Error
1. Check the connection between the AC drive
and computer for loose wires.
2. Check if the communication protocol is
properly set.
Over-current during
acceleration:
1. Short-circuit at motor
output.
2. Torque boost too high.
3. Acceleration time too
short.
4. AC drive output
capacity is too small.
1. Check for possible poor insulation at the
output line.
2. Decrease the torque boost setting in
Pr.7-02.
3. Increase the acceleration time.
4. Replace the AC drive with one that has a
higher output capacity (next HP size).
Over-current during
deceleration:
1. Short-circuit at motor
output.
2. Deceleration time too
short.
3. AC drive output
capacity is too small.
1. Check for possible poor insulation at the
output line.
2. Increase the deceleration time.
3. Replace with the AC drive with one that has
a higher output capacity (next HP size).