SHORTED SCR/DOUBLER PACKS

What does F911 mean?

The PCU detected one or more shorted SCR/doubler packs. This indicates a failure within the power conversion stages of the drive.

• One or more SCR/doubler packs are shorted.

Click steps to track your progress.

1. 1

   Remove power from the drive.

2. 2

   Replace the test SCR(s) that are shorted.

3. 3

   Repeat the diagnostic test until the SCDU displays the 'PASS' message.