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9-6
Trips & Fault Finding
AC890PX AC Drive
Keypad Display
Description
Possible Reason for Trip
MOTOR OVERTEMP
The motor temperature is too
high
Excessive load
Motor voltage rating incorrect
FIXED BOOST and/or AUTO BOOST set too high
Prolonged operation of the motor at low speed without forced
cooling
Check setting of INVERT THERMIST parameter in I/O TRIPS
menu at level 3.
Break in motor thermistor connection
CURRENT LIMIT
V/Hz mode only: If the current
exceeds 180% of induction stack
rated current for a period of 1
second, the drive will trip. This
is caused by shock loads
Remove the cause of the shock load
24V FAILURE
The 24V customer output has
fallen below 17V
24V customer output is short circuited
Excessive loading
LOW SPEED OVER I
The motor is drawing too much
current (>100%) at zero output
frequency
FIXED BOOST and/or AUTO BOOST set too high
(refer to FLUXING menu at level 3)
PHASE FAIL
One or more input phases not present
FBK ENCODER FAIL
Encoder fault - this trip is not functional in software version 1.x
DESAT (OVER I)
Instantaneous overcurrent. Refer to OVERCURRENT in this table
VDC RIPPLE
The dc link ripple voltage is too high. Check for a missing input
phase.
BRAKE SHORT CCT
Brake resistor overcurrent
Check brake resistance is not less than minimum value allowed
Check wiring and brake resistor for earth faults
OVERSPEED
Speed feedback > 150% for 0.1 seconds
Summary of Contents for AC890PX Series
Page 17: ...2 5 Product Overview AC890PX AC Drive 890PX bottom wire entry ...
Page 144: ...The Keypad 7 9 AC890PX AC Drive The Menu System Map ...
Page 145: ...7 10 The Keypad AC890PX AC Drive The Menu System Map continued ...
Page 328: ...Programming D 88 AC890PX AC Drive Functional Description ...
Page 386: ...Programming D 146 AC890PX AC Drive Setpoint Drive Frequency Frequency 1 Frequency 2 ...