ABB ACS880 ESP, Firmware Manual

Page: 429 / 494

Fault tracing 429
7183 BR excess temperature Brake resistor temperature
has exceeded fault limit
defined by parameter
43.11
Brake resistor fault limit .
Stop drive. Let resistor cool down.
Check resistor overload protection
function settings (parameter group
43 Brake chopper ).
Check fault limit setting, parameter
43.11 Brake resistor fault limit .
Check that braking cycle meets
allowed limits.
7184 Brake resistor wiring Brake resistor short circuit or
brake chopper control fault. Check brake chopper and brake
resistor connection.
Ensure brake resistor is not
damaged.
7191 BC short circuit Short circuit in brake chopper
IGBT. 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).
7192 BC IGBT excess
temperature Brake chopper IGBT
temperature has exceeded
internal fault limit. 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
43 Brake chopper ).
Check that braking cycle meets
allowed limits.
Check that drive supply AC voltage
is not excessive.
71B1 Motor fan
Programmable fault: 35.106
DOL starter event type
No feedback received from
external fan. Check external fan (or other
equipment controlled) by the logic.
Check settings of parameters
35.100 … 35.106 .
7301 Motor speed feedback
Programmable fault: 90.45
Motor feedback fault
No motor speed feedback
received. Check the event log for an auxiliary
code. See appropriate actions for
each code at
A7B0 Motor speed
feedback (page 414 ).
7310 Overspeed Motor is turning faster than
highest allowed speed due to
incorrectly set
minimum/maximum speed,
insufficient braking torque or
changes in load when using
torque reference. Check minimum/maximum speed
settings, parameters
30.11
Minimum speed and 30.12
Maximum speed .
Check adequacy of motor braking
torque.
Check need for brake chopper and
resistor(s).
Code
(hex) Fault Cause What to do