ACS550-02/U2 User’s Manual 279
Diagnostics
Fault resetting
The ACS550 can be configured to automatically reset certain faults. Refer to
parameter Group 31: AUTOMATIC RESET.
WARNING! If an external source for start command is selected and it is active, the
ACS550 may start immediately after fault reset.
Flashing red LED
To reset the drive for faults indicated by a flashing red LED:
• Turn the power off for 5 minutes.
Red LED
To reset the drive for faults indicated by a red LED (on, not flashing), correct the
problem and do one of the following:
• Press RESET from the control panel.
• Turn the power off for 5 minutes.
Depending on the value of 1604
FAULT RESET SEL, the following could also be used to
reset the drive:
1009 PAR PCU 1 Parameter values for power control are inconsistent: Improper motor
nominal frequency or speed. Check for both of the following:
•1 < (60 · 9907 MOTOR NOM FREQ / 9908 MOTOR NOM SPEED < 16
• 0.8 < 9908 MOTOR NOM SPEED /
(120 · 9907 MOTOR NOM FREQ / Motor Poles) < 0.992
1010/
1011
RESERVED Not used.
1012
PAR PFC IO 1 IO configuration is not complete – not enough relays are parameterized to
PFC. Or, a conflict exists between Group 14: RELAY OUTPUTS, parameter
8117
NR OF AUX MOT and parameter 8118 AUTOCHNG INTERV.
1013
PAR PFC IO 2 IO configuration is not complete – the actual number of PFC motors
(parameter 8127,
MOTORS) does not match the PFC motors in Group 14:
RELAY OUTPUTS and parameter 8118
AUTOCHNG INTERV.
1014
PAR PFC IO 3 IO configuration is not complete – the drive is unable to allocate a digital
input (interlock) for each PFC motor (parameters 8120
INTERLOCKS and
8127
MOTORS).
1015
RESERVED Not used.
1016
PAR USER LOAD C Parameter values for the user load curve are inconsistent. Check that the
following conditions are met:
• 3704 LOAD FREQ 1 < 3707 LOAD FREQ 2 < 3710 LOAD FREQ 3 <
3713
LOAD FREQ 4 < 3716 LOAD FREQ 5.
• 3705 LOAD TORQ LOW 1 < 3706 LOAD TORQ HIGH 1.
• 3708
LOAD TORQ LOW 2 < 3709 LOAD TORQ HIGH 2.
•3711LOAD TORQ LOW 3 < 3712 LOAD TORQ HIGH 3.
• 3714 LOAD TORQ LOW 4 < 3715 LOAD TORQ HIGH 4.
• 3717
LOAD TORQ LOW 5 < 3718 LOAD TORQ HIGH 5.
Fault
code
Fault name in
panel
Description and recommended corrective action
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