STEP AS380 Series User Manual

Shanghai STEP Electric Corporation
Chapter 9 Faults and Solutions
242
Code
Fault
Description
Possible Cause
Solution
104
External fault
Failure signal on external
input
Check the external cause of the malfunction
105
Unbalanced
output
Converter output side has
connection exception, miss,
or disconnection
Follow the operational rules and check the wiring of
converter output side, eliminate ignored connection and
disconnection
Unbalanced three-phase
motor
Check motor
106
Parameter error
Parameter error
Modify the inverter parameters
107
Current sensor
fault
Driver board hardware
failure
Ask professional technical personnel for Inspection
108
Braking resistor
short circuit
short circuit of external
braking resistor
Check the braking resistor connection
109
Current
instantaneous
value is too
large
When Ia, Ib, Ic is not in
operation, instantaneous
value of three-phase current
is too large and reports alarm
Ask professional technical personnel for Inspection
112
IGBT
short-circuit
protection
Short circuit in periphery
Check whether the motor and output wiring is short
circuit, and whether the earthing is short circuit
113
Communication
failure for AIO
Loose connectors inside
inverter
Ask professional technical personnel for Inspection
Hardware has bad contact or
is damaged
Ask professional technical personnel for Inspection
114
Charging relay
failure
Charging relay damaged
Ask professional technical personnel for Inspection
The transient drop of
three-phase input power
voltage exceeds 30V
Check the cause for input voltage drop

STEP AS380 Series Specifications

General

Brand	STEP
Model	AS380 Series
Category	Controller
Language	English