User manual

Chapter 5 Description of Parameter Settings

CH 5-7 Group 6: Protection Parameters

6 - 00 Over-Voltage Stall Prevention Factory Setting: d 1

Settings d 0 Disable Over-Voltage Stall Prevention

d 1 Enable Over-Voltage Stall Prevention

& During deceleration, the motor DC bus voltage may exceed its Maximum

Allowable Value due to motor regeneration. When this function is enabled, the

AC drive will stop decelerating. Maintaining a constant output frequency when

it happens. The AC drive will only resume deceleration when the voltage drops

below preset value.

Note:

With a moderate inertial load, the over-voltage during deceleration won’t

happen, and the drive will stop in programmed time. The AC drive will

automatically extend the deceleration time with high inertial loads. If

deceleration time is critical for the application, then dynamic braking resistors

should be used.