Chapter 12 Description of Parameter Settings|CFP2000 Series
12.1-01-4
When start frequency is higher than the min. output frequency, drives’ output will be from start
frequency to the setting frequency. Please refer to the following diagram for details.
Fcmd=frequency command,
Fstart=start frequency (Pr.01-09),
fstart=actual start frequency of drive,
Fmin=4th output frequency setting (Pr.01-07/Pr.01-41),
Flow=output frequency lower limit (Pr.01-11)
Fcmd>Fmin and Fcmd<Fstart:
If Flow<Fcmd， drive will run with Fcmd directly.
If Flow>=Fcmd, drive will run with Fcmd firstly, then, accelerate to Flow according to
acceleration time.
The drive’s output will stop immediately when output frequency has reach to Fmin during
deceleration.
Fcmd>Fmin
Fstart>Fmin
NO
YES
YES
fstart=Fstart
NO
fstart=Fmin
Flow=0
Flow=0
YES
H=Fcmd
YES
H=Fcmd
NO
Fcmd>Flow
YES
Fcmd>Fmin
YES
H=Fcmd
NO
NO
Fcmd<Fmin
NO
H=Flow
YES
NO
Fcmd
Fmin
Fstart
Fcmd
Fmin
Fstart
Fcmd1>Flow &
Fcmd1>Fmin
Fmin
Flow
Fcmd2>Flow &
Fcmd2<Fmin
Flow>Fcmd1
>Fmin
Fmin
Flow
Fmin>Fcmd2
60Hz
60Hz
Hz
Time
Hz
Time
Time
Time
Hz
Hz
Fcmd1
Fcmd2
H=Flow
Fcmd1
Fcmd2
H=Fcmd1
by Pr.01-34
by
Pr.01-34
by
Pr.01-34
by Pr.01-34
by Pr.01-34
operation after
start-up
Output Frequency Upper Limit
Factory Setting: 599.00
Settings 0.0~599.00Hz
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