Delta C2000 Series User Manual page 281

Chapter 12 Description of Parameter Settings
If the output frequency upper limit setting is 50Hz and frequency setting is 60Hz, max. output
frequency will be 50Hz.
If the output frequency lower limit setting is 10Hz and min. operation frequency setting (Pr.01-07)
is 1.5Hz, it will operate by 10Hz when the frequency command is greater than Pr.01-07 and less
than 10Hz. If the frequency command is less than Pr.01-07, the drive will be in ready status and
no output.
If the frequency output upper limit is 60Hz and frequency setting is also 60Hz, only frequency
command will be limit in 60Hz. Actual frequency output may exceed 60Hz after slip
compensation.
Accel. Time 1
Decel. Time 1
Accel. Time 2
Decel. Time 2
Accel. Time 3
Decel. Time 3
Accel. Time 4
Decel. Time 4
JOG Acceleration Time
JOG Deceleration Time
Settings
The Acceleration Time is used to determine the time required for the AC motor drive to ramp from
0Hz to Maximum Output Frequency (Pr.01-00).
The Deceleration Time is used to determine the time require for the AC motor drive to decelerate
from the Maximum Output Frequency (Pr.01-00) down to 0Hz.
The Acceleration/Deceleration Time is invalid when using Pr.01-44 Optimal
Acceleration/Deceleration Setting.
The Acceleration/Deceleration Time 1, 2, 3, 4 are selected according to the Multi-function Input
Terminals settings. The factory settings are Accel./Decel. time 1.
When enabling torque limits and stalls prevention function, actual accel./decel. time will be longer
than the above action time.
Please note that it may trigger the protection function (Pr.06-03 Over-current Stall Prevention
during Acceleration or Pr.06-01 Over-voltage Stall Prevention) when setting of accel./decel. time
is too short.
Please note that it may cause motor damage or drive protection enabled due to over current
during acceleration when the setting of acceleration time is too short.
Please note that it may cause motor damage or drive protection enabled due to over current
during deceleration or over-voltage when the setting of deceleration time is too short.
Pr.01-45=0: 0.00~600.00 seconds
Pr.01-45=1: 0.00~6000.00 seconds
12.1-01-6
Factory Setting: 10.00/10.0
Motor drive with 30HP and above:
60.00/60.0
Motor drive with 215HP and above:
80.00/80.0