Delta Electronics Network Device VFD-S Especificaciones descargar pdf (Pagina 54)

VFD-S Series

5-37

5.7 Group 6: Védelmi paraméterk

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.

6-01

Over-Voltage Stall Prevention Level

Unit: 1V

Factory Setting: d390

Settings 230V series d350 to d410V

460V series d700 to d820V

Factory Setting: d780

! During deceleration, the 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 resume

deceleration when the voltage drops below preset value.

! 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.

DC bus voltage

time

Over-voltage

detection

level Pr.6-01

Output

Freq.

time

Over-voltage Stall Prevention

Band=20V

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 129 130

Sin comentarios

Delta Electronics Network Device VFD-S Especificaciones Pagina 54