Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-01-7
The acceleration time determines the time required for the AC motor drive to ramp from 0.00 Hz
to the maximum operation frequency (Pr.01-00). The deceleration time determines the time
required for the AC motor drive to decelerate from the maximum operation frequency (Pr.01-00)
down to 0.00 Hz.
The acceleration and deceleration time are invalid when using Pr.01-44 Auto-acceleration and
Auto-deceleration Setting.
Select the Acceleration / Deceleration time 1, 2, 3, 4 with the multi-function input terminals settings.
The defaults are Acceleration Time 1 and Deceleration Time 1.
With the enabled torque limits and stall prevention functions, the actual acceleration and
deceleration time are longer than the above action time.
Note that setting the acceleration and deceleration time too short may trigger the drive’s protection
function (Pr.06-03 Over-current Stall Prevention during Acceleration or Pr.06-01 Over-voltage Stall
Prevention), and the actual acceleration and deceleration time are longer than this setting.
Note that setting the acceleration time too short may cause motor damage or trigger drive
protection due to over-current during the drive’s acceleration.
Note that setting the deceleration time too short may cause motor damage or trigger drive
protection due to over-current during the drive’s deceleration or over-voltage.
Use suitable brake resistor (refer to Chapter 07 Optional Accessories) to decelerate in a short time
and prevent over-voltage.
When you enable Pr.01-24–Pr.01-27 (S-curve acceleration and deceleration begin and arrival
time), the actual acceleration and deceleration time are longer than the setting.
01-22
JOG Frequency
Default: 6.00
Settings 0.00–599.00 Hz
You can use both the external terminal JOG and F1 key on the optional keypad KPC-CC01 to set
the JOG function. When the JOG command is ON, the AC motor drive accelerates from 0 Hz to
the JOG frequency (Pr.01-22). When the JOG command is OFF, the AC motor drive decelerates
from the JOG frequency to stop. The JOG acceleration and deceleration time (Pr.01-20, Pr.01-21)
are the time to accelerate from 0.00 Hz to JOG frequency (Pr.01-22).
You cannot execute the JOG command when the AC motor drive is running. When the JOG
command is executing, other operation commands are invalid.
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