ABB ACL30, User Manual

Page: 292 / 360

292 Fault tracing
2009
EMERGENCY
STOP Drive has received an
emergency stop command
(OFF1/OFF3). Check that it is safe to continue
operation.
Return the emergency stop push
button to the normal position.
Restart the drive.
2011 BR OVERHEAT Brake resistor temperature
has exceeded the alarm
limit defined with
parameter
48.06 BR TEMP
ALARMLIM.
Stop the drive. Let the resistor cool
down.
Check resistor overload protection
function settings, parameters
48.01 … 48.04 .
Check the alarm limit setting,
parameter
48.06 .
Check that the braking cycle meets
the allowed limits.
2012
BC OVERHEAT Brake chopper IGBT
temperature has exceeded
the internal alarm limit. Let the chopper cool down.
Check for excessive ambient
temperature.
Check for cooling fan failure.
Check for obstructions in the air
flow.
Check the dimensioning and
cooling of the cabinet.
Check resistor overload protection
function settings, parameters
48.01 … 48.04 .
Check that the braking cycle meets
allowed limits.
Check that the drive supply AC
voltage is not excessive.
2013
DEVICE
OVERTEMP Measured drive
temperature has exceeded
the internal alarm limit. Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-
up.
Check motor power against unit
power.
2014
INTBOARD
OVERTEMP Interface board (between
power unit and control unit)
temperature has exceeded
the internal alarm limit. Let the drive cool down.
Check for excessive ambient
temperature.
Check for cooling fan failure.
Check for obstructions in the air
flow.
Check the dimensioning and
cooling of the cabinet.
Code Alarm Cause What to do