ABB ACS355 series User Manual page 358

358 Fault tracing
CODE FAULT
0003 DEV OVERTEMP
(4210)
0305 bit 2
0004 SHORT CIRC
(2340)
0305 bit 3
0006 DC UNDERVOLT
(3220)
0305 bit 5
CAUSE
If the overvoltage fault
appears during
deceleration, possible
causes are:
• Overvoltage controller
disabled.
• Deceleration time is
too short.
• Faulty or undersized
braking chopper.
Drive IGBT temperature
is excessive. The fault
trip limit depends on the
drive type and size.
Ambient temperature is
too high.
Airflow through the
inverter is not free.
Fan is not working
properly
Overloading of the drive. 50% overload is allowed for one
Short-circuit in motor
cable(s) or motor.
Damaged motor or motor
cable.
Internal fault of the drive.
Drive gives an
overcurrent fault after
start command even
when the motor is not
connected (use scalar
control in this trial).
High frequency noise in
STO lines.
Intermediate circuit DC
voltage is not sufficient.
Undervoltage controller
disabled.
WHAT TO DO
• Check that overvoltage controller is
on (parameter 2005 OVERVOLT
CTRL).
• Check deceleration time (2203,
2206).
• Check brake chopper and resistor
(if used). DC overvoltage control
must be deactivated when brake
chopper and resistor is used
(parameter 2005 OVERVOLT
CTRL). Retrofit drive with brake
chopper and brake resistor.
Check ambient conditions. See also
section Derating on page 376.
Check air flow and free space above
and below the drive (see section
space around the drive
Check fan operation.
minute in ten minutes. If higher
switching frequency (parameter 2606)
is used, follow the Derating
page 376.
Check motor and cable insulation.
Check motor winding
Replace the drive.
Check the STO cabling and remove
the noise sources nearby.
Check input power supply and fuses.
Check that undervoltage controller is
on (parameter 2006 UNDERVOLT
CTRL).
Free
on page 34).
rules on