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266 Fault tracing
Code
Fault
(hex)
6885
Text file overflow
7080
Option module comm
loss
7081
Panel port
communication
Programmable fault:
Communication loss
action
7121
Motor stall
Programmable fault:
Stall function
7181
Brake resistor
7183
BR excess
temperature
7184
Brake resistor wiring
7191
BC short circuit
7192
BC IGBT excess
temperature
Cause
Internal fault.
Communication between drive
and option module (FEN-xx
and/or FIO-xx) is lost.
Control panel or PC tool
selected as active control
location for drive has ceased
49.05
communicating.
Motor is operating in stall
region because of e.g.
31.24
excessive load or insufficient
motor power.
Brake resistor broken or not
connected.
Brake resistor temperature has
exceeded fault limit defined by
parameter
43.11 Brake resistor
fault
limit.
Brake resistor short circuit or
brake chopper control fault.
Short circuit in brake chopper
IGBT.
Brake chopper IGBT
temperature has exceeded
internal fault limit.
What to do
Reset the fault. Contact your local ABB
representative if the fault persists.
Check that the option modules are
properly seated in their slots.
Check that the option modules or slot
connectors are not damaged. To pinpoint
the problem, try installing the modules
into different slots.
Check PC tool or control panel
connection.
Check control panel connector.
Replace control panel in mounting
platform.
Check motor load and drive ratings.
Check fault function parameters.
Check that a brake resistor has been
connected.
Check the condition of the brake resistor.
Check the dimensioning of the brake
resistor.
Stop drive. Let resistor cool down.
Check resistor overload protection
function settings (parameter group
Brake
chopper).
Check fault limit setting, parameter
Brake resistor fault
limit.
Check that braking cycle meets allowed
limits.
Check brake chopper and brake resistor
connection.
Ensure brake resistor is not damaged.
Ensure brake resistor is connected and
not damaged.
Check the electrical specifications of the
brake resistor against the Hardware
manual.
Replace brake chopper (if replaceable).
Let 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 (parameter group
Brake
chopper).
Check that braking cycle meets allowed
limits.
Check that drive supply AC voltage is not
excessive.
43
43.11
43
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