STEP AS380 Series User Manual

Shanghai STEP Electric Corporation
Appendix B Para. Fault List Summary
280
Code
Fault
Description
Possible Cause
Solution
circuit, whether earthing is short circuit
Open phase in output
Check the motor and output wiring for loose
Encoder fault
Check whether the encoder is damaged or the wiring is
correct
Encoder wrong phase
Check motor phase
Motor wrong phase
Check motor phase
Phase angle self-study
incorrect
Do self-study of phase angle again
Insufficient current when
phase self-study
Increase F247 current gain when do self-study
Bad contact of hardware or
damaged
Ask professional technical personnel for Inspection
Converter
internal connectors loose
Ask professional technical personnel for Inspection
72
ADC failure
Current sensor damaged
Replace current sensor
Problem in current
sampling circuit
Replace control board
73
Radiator overhe
ating
Ambient temperature is too
high
Reduce the ambient temperature, enhance ventilation
Duct obstruction
Clean dust, cotton and other debris in the duct
Fan abnormal
Check the fan power cable for connection, or replace the
fan with the same model
Temperature
detection circuit fault
Ask professional technical personnel for Ispection
74
Brake unit
failure
Brake unit damaged
Replace the corresponding driver module
External braking
resistor short circuit
Check the braking resistor connection
75
Fuse-off failure
Current is too large to fuse
Check whether the fuse circuit is open, or for loose
connections
76
Over
output torque
Over-low input
power voltage
Check the input power
Motor
stall or severe load mutation
Lower load mutation to prevent motor stall
Encoder fault
Check whether the encoder is damaged or the wiring is
correct

STEP AS380 Series Specifications

General

Brand	STEP
Model	AS380 Series
Category	Controller
Language	English