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

Start-Up Frequency

Settings
 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.
F cmd>Fmi n
F star t>Fmin
fstart=F star t
F low= 0
H=Fc md
F cmd
F star t
F min

Output Frequency Upper Limit


Settings
0.0~600.00Hz
NO
by Pr.01- 34
Y ES
NO
fstart=F min
Y ES
operation after
start-up
by
Pr.01- 34
Y ES
Hz
Hz
60Hz
F cmd1
F min
F cmd2
F low
Time
0.0~600.00Hz
Chapter 12 Description of Parameter SettingsC2000 Series
Y ES
H=Fc md
F low= 0
Hz
F cmd
F min
F star t
NO
NO
F cmd>Fl ow
Y ES F cmd<Fmi n
NO
F cmd>Fmi n
H=Fl ow
Y ES
H=Fc md
F low
H=Fc md1
F cmd1>Flow &
F cmd1
F cmd1>Fmin
F min
F cmd2
Time
by Pr.01- 34
F cmd2>Flow &
F cmd2<Fmin
12-25
Factory Setting: 0.50
Time
NO
by
Y ES
Pr.01- 34
NO
Hz
60Hz
H=Fl ow
F low> Fcmd1
>F min
Time
by Pr.01- 34
F min>Fc md2
Factory Setting: 600.00