Delta Electronics AC Drive VFD-F Series Especificaciones descargar pdf (Pagina 79)

VFD-F Series

5-46

08 - 06

Speed Search Time

Factory Setting: 0.5

Settings 0.1~5.0 Sec Unit: 0.1

 This parameter determines the delay time from fault (power loss, OV, OC or BB) recovery to start to

execute the function of speed search time.

08 - 07

Maximum Speed Search Current

Factory Setting: 110

Settings 30~150% Unit: 1

 This parameter determines maximum current of speed search.

 Maximum speed search current will have influence with synchronization attained time. The greater

this parameter is set, the faster it will be synchronization. But if the parameter setting value is too

great, it may cause over-loaded protection.

 If 08-04 is set to 01: when speed search is from top downward, output frequency is searched from

master frequency command downward. Now output voltage and output current will be added from

zero. When output current is equal to 08-07 setting value, AC drive output current will retain in a

fixed value and output frequency will keep on searching from top downward. When output

frequency and output voltage is overlapped with V/f setting frequency, AC drive will judge that is

synchronization attained and accelerates from V/f curve to master frequency command.

 If 08-04 is set to 02: AC drive will accelerate according to V/f curve and won’t do any special

treatment.

Power

Input

Output

Frequency

Output

Voltage

B.B. Time

08-06

Speed Search

Speed

Synchronization

Detection

Momentary Power Loss Operation

Maximum allowable

power loss time

08-05

08-04=01

B.B.Time

08-06

Max. Allowable

Power Loss Time

08-05

08-04=02

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Delta Electronics AC Drive VFD-F Series Especificaciones Pagina 79

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