Delta Electronics AC Drive VFD-F Series Especificaciones descargar pdf (Pagina 78)

VFD-F Series

5-45

Output frequency

Time

DC Braking Time

OFF

Run/Stop

DC braking

current

level

DC braking

time during

stopping

Minimum

output

frequency

Stop point for

DC braking

time during

stopping

01-05

08-03

08 - 04

Momentary Power Loss Operation Selection

Factory Setting: 00

Settings

00: Disable

01: Trace from top downward

02: Trace from bottom upward

 This parameter determines the start-up mode after momentary power loss operation.

 The power system connects to AC drive may occurred momentary power loss by any probably

reason. This function can make AC drive output voltage continuously after power loss and AC drive

won’t stop by power loss.

 If this parameter is set to 01, AC drive will trace from the last frequency before power loss

downward. After output frequency of AC drive and running speed of the motor is synchronization, it

will accelerate to master frequency command. It is recommended to use this setting if the motor

loading has the characteristics of high inertial and low resistance.

 If this parameter is set to 02, AC drive will trace from the Min. frequency upward. After output

frequency of AC drive and running speed of the motor is synchronization, it will accelerate to master

frequency command. It is recommended to use this setting if the motor loading has the

characteristics of low inertial and high resistance.

08 - 05

Maximum Allowable Power Loss Time

Factory Setting: 2.0

Settings 0.1~5.0 Sec Unit: 0.1

 This parameter determines the maximum allowable power loss time. If the power loss time is less

than the time defined by this parameter, the AC drive will execute 08-04 momentary power loss

operation.

 The allowable power loss time is beginning to count time after AC drive displays Lu. Therefore,

actual allowable power loss time will change with loading.

 The allowable power loss time must in the condition that AC drive auxiliary power is working

normally. If auxiliary power is turned off in the allowable power loss time, the actual allowable

power loss time will be shorter than the parameter setting.

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Delta Electronics AC Drive VFD-F Series Especificaciones Pagina 78

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