ABB ACH580 Series Installation, Operation And Maintenance Manual page 75

ACH580 Installation, Operation and Maintenance Manual
Code
(hex)
7181
7183
7184
7191
7192
7310
73F0
Fault / Aux. code
Brake resistor
BR excess temperature
Brake resistor wiring
BC short circuit
BC IGBT excess
temperature
Overspeed
Overfrequency
Cause
Brake resistor broken Check that a brake resistor has been
or not connected. connected.
Check the condition of the brake
resistor.
Check the dimensioning of the brake
resistor.
Brake resistor Stop drive. Let resistor cool down.
temperature has
Check resistor overload protection
exceeded fault limit
function settings (parameter group
defined by parameter
43 Brake chopper).
43.11 Brake resistor
Check fault limit setting, parameter
fault limit.
43.11 Brake resistor fault limit.
Check that braking cycle meets
allowed limits.
Brake resistor short Check brake chopper and brake
circuit or brake chopper resistor connection.
control fault.
Ensure brake resistor is not damaged.
Short circuit in brake Ensure brake resistor is connected
chopper IGBT. and not damaged.
Check the electrical specifications of
the brake resistor against chapter
Resistor braking in the Hardware
manual of the drive.
Replace brake chopper (if
replaceable).
Brake chopper IGBT Let chopper cool down.
temperature has
Check for excessive ambient
exceeded internal fault
temperature.
limit.
Check for cooling fan failure.
Check for obstructions in the air flow.
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.
Motor is turning faster Check minimum/maximum speed
than highest allowed settings, parameters 30.11 Minimum
speed due to speed and 30.12 Maximum speed.
incorrectly set
Check adequacy of motor braking
minimum/maximum
torque.
speed, insufficient
Check applicability of torque control.
braking torque or
Check need for brake chopper and
changes in load when
resistor(s).
using torque reference.
Maximum allowed Contact your local ABB
output frequency representative.
exceeded.
75
What to do
ACH580-01 Installation