gefran ADV20 series

ADV20 QS, V1.02 23
Italiano English
Fault
Name
Fault Descriptions Corrective Actions
Overheating
Heat sink temperature too high
1. Ensure that the ambient temperature falls
within the specified temperature range.
2. Make sure that the ventilation holes are not
obstructed.
3. Remove any foreign objects from the
heatsinks and check for possible dirty heat
sink fins.
4. Check the fan and clean it.
5. Provide enough spacing for adequate
ventilation.
Overload
The AC motor drive detects
excessive drive output current.
NOTE: The AC motor 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 in
Pr.07.02.
3. Take the next higher power AC motor drive
model.
Overload 1
Internal electronic overload trip
1. Check for possible motor overload.
2. Check electronic thermal overload setting.
3. Use a higher power motor.
4. Reduce the current level so that the drive
output current does not exceed the value set by
the Motor Rated Current Pr.07.00.
Overload 2
Motor overload.
1. Reduce the motor load.
2. Adjust the over-torque detection setting to an
appropriate setting (Pr.06.03 to Pr.06.05).
CC (current clamp)
OV hardware error
Please contact the Gefran Technical Assistance.
GFF hardware error
OC hardware error
Please contact the Gefran Technical Assistance.
External Base Block.
(Refer to Pr. 08.07)
1. When the external input terminal (B.B) is
active, the AC motor drive output will be
turned off.
2. Deactivate the external input terminal (B.B) to
operate the AC motor drive again.
Over-current during
acceleration
1. Short-circuit at motor output: Check for possible
poor insulation at the output lines.
2. Torque boost too high: Decrease the torque
compensation setting in Pr.07.02.
3. Acceleration Time too short: Increase the
Acceleration Time.
4. AC motor drive output power is too small:
Replace the AC motor drive with the next
higher power model.
External Fault
1. When multi-function input terminals (MI3-MI9)
are set to external fault, the AC motor drive
stops output U, V and W.
2. Give RESET command after fault has been
cleared.