Mechanical And Electrical Installation Of Brake Resistor; Mechanical Installation; Electrical Installation; Measuring The Insulation - ABB ACS480-04-09A8-1 Hardware Manual

202 Resistor braking

Mechanical and electrical installation of brake resistor

WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or death,
or damage to the equipment can occur. If you are not a qualified electrical
professional, do not do installation or maintenance work.
WARNING!
Stop the drive and do the steps in section
before you start the work.
￭

Mechanical installation

Refer to the resistor manufacturer's instructions.
￭

Electrical installation

Measuring the insulation

See the electrical installation instructions of the drive.

Connecting power cables

See the electrical installation instructions of the drive.

Connection the control cables

Connect the thermal switch of the brake resistor as described in
against thermal overload (page

Start-up

Set the following parameters:
1. Disable the overvoltage control of the drive with parameter 30.30 Overvoltage
control.
2. Set the source of parameter 31.01 External event 1 source to point to the digital
input where the thermal switch of the brake resistor is wired.
3. Set parameter 31.02 External event 1 type to Fault.
4. Enable the brake chopper by parameter 43.06 Brake chopper enable. If Enabled
with thermal model is selected, set also the brake resistor overload protection
parameters 43.08 and 43.09 according to the application.
5. Check the resistance value of parameter 43.10 Brake resistance.
With these parameter settings, the drive generates a fault and coasts to a stop on brake
resistor overtemperature.
Electrical safety precautions (page 18)
201).
Protecting the system