￭
Mechanical installation
All brake resistors must be installed outside the drive. Follow the resistor
manufacturer’s instructions.
￭
Electrical installation
Checking the insulation of the assembly
Follow the instructions given in section Brake resistor assembly for
R1…R3 (page 131) or Brake resistor assembly for R1…R3 (page 175) (North America).
Connection diagram
See section Connection diagram (page 139) (IEC) or Connection diagram (page 184)
(North America).
Connection procedure
See section Grounding shelf (page 146).
Connect the thermal switch of the brake resistor as described in Protecting the
system against thermal overload (page 404).
￭
Start-up
Start-up
WARNING!
Make sure that there is sufficient ventilation. New brake resistors can have
a protective grease coating. When the resistor warms up for the first time,
the grease burns off and can produce some smoke.
Set the following parameters (Standard control program):
• Set parameter 30.30 Overvoltage control to disable.
• Set parameter 31.01 External event 1 source to point to the digital input where
the thermal switch of the brake resistor is wired.
• Set parameter 31.02 External event 1 type to Fault.
• Set parameter 43.06 Brake chopper function to Enable. If you select Enabled
with thermal model, set also the brake resistor overload protection parameters
43.08 and 43.09 according to the application.
• Check the resistance value of parameter 43.10 Brake resistance.
With these parameter settings, the drive stops by coasting on brake resistor
overtemperature.
Resistor braking 405
To Next Page
Loading...
