PDM20 Series
-48-
Fault
code
Fault type Possible reasons Solution
8．Control board exception
E015
External
water
shortage
Water shortage is detected Check whether water is deficient.
E018
Fault of
current
detection
circuits
1．Poor contact of control board
connector
1．Check connector and re-plug
2．Power circuit irregularity
2．Seek for service
3．Damage to hall devices
4．Exception of amplifying
circuit
E022
EEPROM
read write
faults
1．Read write of control
parameter goes wrong
1．Press RUN/STOP key to reset
2．EEPROM broken 2．Seek for service
E023
Torque
rich
1．Too fast acceleration 1．Increase acceleration time
2．Restart rotating motor 2． Avoid restart rotation motor
3．Grid voltage is too low 3．Check grid voltage
4．Load is too heavy 4．Use big power SPD
E024
PID
feedback
broken line
fault
1．Sensor broken line or poor
contact
1．Check the installation and wiring of
sensor
2．Broken line detection time is
too short
2．.Increase broken line detection time
3．The sensor is broken or the
system has no feedback signal
3．Change sensor
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