Chapter 9 Troubleshooting and Countermeasures
ACH200 Series High Voltage Variable Frequency Speed Control System Operating Manua
135
9.4 Motor Self-learning Fault Sub-code Description
Attachment: The detailed fault diagnosis information of self-learning fault is shown in the table
below, where FA.39 fault sub-code shows "20xx" as self-learning fault sub-code.
FA.39
Fault
subcode
Troubleshooting information
Countermeasures
2001
Current saturation, Hall detection
problem or excessive output current
Check motor wiring for phase shorts
2002
Excessive current zero bias
Check Hall sensor for problems
2003
Current imbalance
Check the motor wiring, whether there is
output phase loss
2004
Current oscillation
1. Check the motor connection, whether
there is a short circuit between phases
2. Check whether the input motor nameplate
parameters are correct
2005
Static learning current amplitude
exceeds limit
1. Check the motor connection, whether
there is a short circuit between phases
2. Check whether the input motor nameplate
parameters are correct
2006
Static learning U-phase current over
limit
Check the U-phase motor connection for
phase-to-phase or ground shorts
2007
Static learning V phase current over
limit
Check the V-phase motor connection for
phase-to-phase or ground shorts
2008
Static learning W phase current over
limit
Check the W-phase motor connection for
phase-to-phase or ground shorts
2009
Continuous current overlimit during
dynamic learning
1. Check the motor connection, whether
there is a short circuit between phases
2. Check whether the input motor nameplate
parameters are correct
2010
Voltage saturation
1. Check the motor connection, whether
there is a short circuit between phases
2. Check whether the input motor nameplate
parameters are correct
