DL100 Series Universal Low-Power Inverter
60 Fault Diagnosis And Countermeasures
too short.
3. The protection factor
Setting is too small.
4. The torque boost is too
high.
3. Increase the overload protection
factor of motor.
4. Reduce torque boost.
1. Air duct obstruction
2. The environment
temperature is too high.
3. The fan is damaged.
1. Clean air duct or improve
ventilation condition.
2. Improve the ventilation
condition and reduce the
carrier frequency.
3. Change fan.
The exterior fault input
terminal is ineffective.
1. Check the exterior
equipment.
2. Disconnect the external
fault input terminal.
1 The feedback signal is lost.
2. The setting of off-line
detection threshold value
is not appropriate.
1. Check line.
2. Reduce threshold value of
off-line detection.
The current detection
devices or circuit is
damaged.
1. Check socket line.
2. Ask for manufacturers’
assistance.
Internal data
EEPROM error
The read-write errors of
control parameters.
Ask for manufacturers’
assistance.
7.2 Fault record query
The series of inverters recorded the recent fault code occurred in the last four
times and the inverter output parameters of the last fault; query of these
information will contribute to find fault causes.
The output voltage of the last
fault recently
The direct voltage of the last
fault recently
The module temperature of
the last fault recently
The set frequency of the last
fault recently
The output frequency of the
last fault recently
The running status of the last
fault recently
The output current of the last
fault recently
The fault information and condition monitoring parameters are stored in a
unified manner; please refer to the keyboard operation method to query
information.
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