Parker ac890 - Page 347

11-16 Trips & Fault Finding
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
6511
Keypad
Display
6901
Keypad
Display
Description Possible Reason for Trip
T 6 24V FAILURE
The 24V customer output
has fallen below 17V
Refer to Parker Hannifin technical support
T 4 VOLTS SEL SWITCH
Failure to read voltage
selector switch
May be caused by excessive loading on ANOUT
PHAS PHASE LOSS Input phase missing
CHRG CHARGING Failed to charge DC link
Excessive capacitance on DC link
Short circuit on DC link
DCRP VDC RIPPLE Excessive DC link ripple
Driving a reciprocating load
AOUT ANOUT FAULT Overload on analog output
VOLT VOLTS SELECTION
Invalid position on volts
selector switch
ENCI ENC NEEDS INIT
PMAC motor used with a
relative encoder – Needs to
run init once per power
cycle
Relative encoder needs to be aligned with the motor back
EMF. Use MOT POLARISATION feature to align