STEP AS380 Series User Manual

Instruction Manual for AS380 Series Elevator Integrated Drive Controller
Chapter 9 Faults and Solutions
241
Code
Fault
Description
Possible Cause
Solution
Motor coil short circuit
Check motor
Encoder fault
Check encoder damage or not and wiring
Encoder wrong phase
Check encoder phase
Motor wrong phase
Check motor phase
Phase angle self-study
incorrect
Do phase angle self-study again
Insufficient current as doing
phase self-study
Increase F247 current gain when doing self-study
Output short circuit
Check the wiring or the motor
98
Sincos Encoder
failure
Encoder damaged or wrong
lines
Check the Encoder and the line
99
Missing input
phase
Abnormal voltage on input
side
Check grid voltage
Open phase input
Loose terminal on input side
connection
Check the input terminal wiring
100
Overspeed
protection
(protection
against
exceeding the
maximum
speed limit)
Encoder parameter error or
interfered
Check Encoder circuit
Load mutation
Check causes of the external load mutation
Overspeed protection
parameter error
Check parameters
101
High-speed
over-current
motor
Low voltage power grid
Check the input power
Running load mutation
Reduce the load mutation frequency and magnitude
Abnormal motor parameters
setup
Set motor parameters correctly
Encoder parameter error or
interfered
Check Encoder circuit
102
Earthing
protection
Connection error
Correct wiring errors according to user manual
Abnormal motor
Test earthing insulation before replacing the motor
Over-current leakage of
converter output side against
earthing
Ask professional technical personnel for Ispection
103
Capacitance
aging
Converter capacitor aging
Ask professional technical personnel for Ispection

STEP AS380 Series Specifications

General

Brand	STEP
Model	AS380 Series
Category	Controller
Language	English