Promac SY-350V Operating Instructions Manual page 23

Fault Name Fault Descriptions
Overheating
Heat sink temerpature too high
Low voltage
The AC motor drive detects that
the DC bus voltage has fallen
below ist minimum value.
Overload
The AC motor drive detects
excessive drive output current.
NOTE: The AC motor
drive can withstand up to
150% oft he rated
current for a maximum of
60 seconds.
Overload 1
Internal electronic overload trip
Overload 2
Motor overload.
CC (current clamp)
OV hardware-error
GFF hardware-error
OC hardware-error
Corrective Actions
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 vetilation.
1. Check whether the input voltage
falls within the AC motor drive
rated input voltage range.
2. Check for abnormal load in motor.
3. Check for correct wiring of input power to
R-S-T (for 3-phase models) without
phase loss.
1. Check whether the motor is overloaded.
2. Reduce torque compensation setting in
Pr.07.02.
3. Use the next higher power AC motor
drive model.
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.
1. Reduce the motor load.
2. Adjust the over-torque detection setting
to an appropriate setting (PL06.03 to
PL06.05).
Return tot he factory.
.
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