ABB ACS880 N5700 Series, Firmware Manual, Page: 570 / 662

What to do Cause
Event name /
Aux. code Code
(hex)
Check for an earth fault in motor or
motor cables by measuring the
insulation resistances of motor and
motor cable.
Try running the motor in scalar control
mode if allowed. (See parameter
99.4
Motor control mode .)
If no earth fault can be detected,
contact your local ABB representative.
Check motor and motor cable for
cabling errors. Short-circuit in motor cable(s) or
motor. Short circuit A2B4
Check there are no power factor
correction capacitors or surge
absorbers in motor cable.
Check motor cable. Excessive IGBT junction to case
temperature. This warning protects IGBT overload A2BA
Check ambient conditions.
the IGBT(s) and can be activated by a
short circuit in the motor cable. Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check motor power against drive
power.
Check the supply voltage setting
(parameter
95.1 Supply voltage ). Note
Intermediate circuit DC voltage too
high (when the drive is stopped). DC link
overvoltage A3A1
that the wrong setting of the
parameter may cause the motor to
rush uncontrollably, or may overload
the brake chopper or resistor.
Check the supply voltage.
If the problem persists, contact your
local ABB representative.
Check the supply voltage setting
(parameter
95.1 Supply voltage ). Note
Intermediate circuit DC voltage too
low (when the drive is stopped). DC link
undervoltage A3A2
that the wrong setting of the
parameter may cause the motor to
rush uncontrollably, or may overload
the brake chopper or resistor.
Check the supply voltage.
If the problem persists, contact your
local ABB representative.
Check the supply voltage setting
(parameter
95.1 Supply voltage ). Note
The voltage of the intermediate DC
circuit has not yet risen to operating
level. DC not
charged A3AA
that the wrong setting of the
parameter may cause the motor to
rush uncontrollably, or may overload
the brake chopper or resistor.
Check the supply voltage.
If the problem persists, contact your
local ABB representative.
Check the settings of parameters
35.61 and 35.62 .
Calculated motor cable temperature
has exceeded warning limit. Motor cable
overload A480
Check the dimensioning of the motor
cable in regard to required load.
570 Fault tracing