Delta C2000 Series User Manual page 280

Output Frequency Upper Limit
Settings
Output Frequency Lower Limit
Settings
The upper/lower output frequency setting is used to limit the actual output frequency. If the
frequency setting is higher than the upper limit (01-10), it will run with the upper limit frequency. If
output frequency lower than output frequency lower limit (01-11) and frequency setting is higher
than min. frequency (01-07), it will run with lower limit frequency. The upper limit frequency should
be set to be higher than the lower limit frequency. Pr.01-10 setting must be
Upper output frequency will limit the max. Output frequency of drive. If frequency setting is higher
than Pr.01-10, the output frequency will be limited by Pr.01-10 setting.
When the drive starts the function of slip compensation (Pr.07-27) or PID feedback control, drive
output frequency may exceed frequency command but still be limited by this setting.
Related parameters: Pr.01-00 Max. Operation Frequency and Pr.01-11 Output Frequency Lower
Limit
Vol tage
Pr01-02
Motor rate d volta ge
(Vbas e)
P r0 1-04
Mid point volta ge 1
P r0 1-06
Mid point volta ge 2
Pr01-08
Min o utput voltag e
s ett ing (Vmin)
Pr01-07
Min out put
f requenc y
(Fmin)
Lower output frequency will limit the min. output frequency of drive. When drive frequency
command or feedback control frequency is lower than this setting, drive output frequency will limit
by the lower limit of frequency.
When the drive starts, it will operate from min. output frequency (Pr.01-07) and accelerate to the
setting frequency. It won't limit by lower output frequency setting.
The setting of output frequency upper/lower limit is used to prevent personal misoperation,
overheat due to too low operation frequency or damage due to too high speed.
Chapter 12 Description of Parameter Settings
0.0~599.00Hz
0.0~599.00Hz
Pr01-11
L owe r limit of out put frequenc y
Pr01-05
Mid point
frequenc y 2
12.1-01-5
P r0 1-10
Uppe r limit of out put frequenc y
Pr01-03 Pr01-01
Mo tor rated
Mid po int
frequenc y
freque ncy 1
(Fbas e)
Factory Setting: 599.00
Factory Setting: 0.00
Pr.01-11 setting.
Frequ ency
Pr01-00
Max . operat ion
frequ ency