Start-Up Frequency; Output Frequency Lower Limit - Delta C2000 series User Manual

Start-Up Frequency

Settings 0.0~600.00Hz
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)
F cmd>Fmi n
Y ES
F star t>Fmin
Y ES
fstart=F star t
F low= 0
Y ES
H=Fc md
Hz
F cmd
F star t
F min
Output Frequency Upper Limit
Settings 0.0~600.00Hz

Output Frequency Lower Limit

Settings 0.0~600.00Hz
The upper/lower output frequency setting is used to limit the actual output frequency. If the
frequency setting is higher than the upper limit, it will run with the upper limit frequency. If output
frequency lower than output frequency lower limit and frequency setting is higher than min.
frequency, it will run with lower limit frequency. The upper limit frequency should be set to be higher
than the lower limit frequency.
Chapter 12 Description of Parameter Settings|C2000 Series
NO
by Pr.01- 34
NO
fstart=F min F low= 0
operation after
start-up
NO
F cmd>Fl ow
NO
by
F cmd>Fmi n
Pr.01- 34
H =Fc md
Hz
60Hz
H=Fc md1
F cmd1>Flow &
F cmd1
F cmd1>Fmin
F min
F cmd2
F low
Time
Time
by Pr.01- 34
F cmd2>Flow &
F cmd2<Fmin
12-23
YES
H=Fc md
Hz
F cmd
F min
F star t
NO
NO
Y ES
YES F cmd<Fmi n
NO
H=Fl ow
Y ES
Hz
60H z
F low
F cmd1
F min
F cmd2
Factory Setting: 0.50
Time
by
Pr.01- 34
H=Fl ow
F low> Fcmd1
>F min
Time
by Pr.01- 34
F min>Fc md2
Factory Setting: 600.00
Factory Setting: 0.00