5

Overvoltage

Allen-Bradley · PowerFlex 700 AC Drives

What does 5 mean?

The DC bus voltage has exceeded its maximum permissible value. This can be caused by high incoming AC line voltage, transient voltage spikes, or regenerative energy from a decelerating motor, risking damage to the drive's DC bus capacitors.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Install a dynamic brake option (resistor and chopper circuit) to dissipate regenerative energy.

Source: Allen-Bradley PowerFlex 700 AC Drives
Open Manual (Page 87)