Instruction Manual for AS380 Series Elevator Integrated Drive Controller
Chapter 9 Faults and Solutions
Power off, check whether the converter output side is
consistent with the features of DC side terminal
Motor
overcurrent at
low speed (in
acceleration)
Low voltage in power grid
Abnormal motor parameters
Set correct motor parameters
Quick start the motor in
operation
Restart after the motor stops rotating
Motor
overcurrent at
low speed (in
deceleration)
Low voltage in power grid
Use appropriate braking components
Abnormal motor parameters
Set correct motor parameters
Deceleration time is too
short
Extend the deceleration time
Motor
overcurrent at
low speed (in
constant speed)
Load mutation in operation
Reduce the mutation frequency and magnitude of the load
Abnormal motor parameters
Set correct motor parameters
Encoder not connected
correctly
Encoder has no signal output
Check the Encoder and power supply
Encoder wiring disconnected
Abnormal function code
setup
Confirm the relevant functional configuration of the
converter Encoder
Current not effectively
blocked when the motor
stops
Ask professional technical personnel for Inspection
Velocity reverse
in operation
Reverse speed in operation
Check the external load for mutation
Encoder is inconsistent with
the motor phase sequence
Change motor or encoder phase sequence
Motor reversal at start, and
the current reaches the
current limit
Current limit is too low, or the motor does not match
Velocity
detected at stop
Brake loose, the elevator car
slides
Encoder interfered or loose
Fasten encoder, eliminate interference
Motor phase
sequence error
Anti-line or adjust parameters
Overspeed in
the same
direction (withi
n the
maximum allow
ed range)
Galloping in the field-loss
status of synchronous motor
Incorrect self study in angle
of synchronous motor
Encoder parameter error
or interfered
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