Brake chopper supervision

What does 12 mean?

This fault indicates that either no brake resistor is installed, the installed brake resistor is broken, or there is a failure within the brake chopper unit itself. This prevents proper dissipation of regenerative energy.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the resistor and cabling are confirmed good, the chopper unit is faulty.