Allen-Bradley powerflex 700 User Manual

Troubleshooting 4-15
Stopping the drive results in a Decel Inhibit fault.
Cause(s) Indication Corrective Action
The bus regulation feature is
enabled and is halting deceleration
due to excessive bus voltage.
Excess bus voltage is normally due
to excessive regenerated energy or
unstable AC line input voltages.
Internal timer has halted drive
operation.
Decel Inhibit fault
screen.
LCD Status Line
indicates
“Faulted”.
1. See Attention statement on page P-4
.
2. Reprogram parameters 161/162 to
eliminate any “Adjust Freq” selection.
3. Disable bus regulation (parameters 161 &
162) and add a dynamic brake.
4. Correct AC input line instability or add an
isolation transformer.
5. Reset drive.

Allen-Bradley powerflex 700 Specifications

General

Series	PowerFlex 700
Category	AC Drive
Input Voltage	200-240V AC, 380-480V AC, 500-600V AC
Enclosure	Type 1
Control Method	Sensorless Vector
Communication	EtherNet/IP, ControlNet, DeviceNet, PROFIBUS DP, Modbus