Chapter 12 Description of Parameter Settings
MH300
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 0.0 Hz to the 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.
First and Fourth Acceleration / Deceleration Exchange Frequency
Default: 0.00
Settings 0.00–599.00 Hz
This function does not require the external terminal switching function; it switches the
acceleration and deceleration time automatically by the Pr.01-23 setting. If you set the external
terminal, it is based on the external terminal first, and not on Pr.01-23.
Use this parameter to set the switch frequency between acceleration and deceleration slope. The
First / Fourth Accel. / Decel. slope is calculated by the Max. Operation Frequency (Pr.01-00) /
acceleration / deceleration time.
Example: When the Max. Operation Frequency (Pr.01-00) = 80 Hz, and Switch Frequency
between First and Fourth Accel. / Decel. (Pr.01-23) = 40 Hz:
a. If Acceleration Time 1 (Pr.01-02) = 10 sec., Acceleration Time 4 (Pr.01-18) = 6 sec., then the
acceleration time is 3 sec. for 0–40 Hz and 5 sec. for 40–80 Hz.
b. If Deceleration Time 1 (Pr.01-13) = 8 sec., Deceleration Time 4 (Pr.01-19) = 2 sec., then the
deceleration time is 4 sec. for 80–40 Hz and 1 sec. for 40–0 Hz.
S-curve for Acceleration Begin Time 1
S-curve for Acceleration Arrival Time 2
S-curve for Deceleration Begin Time 1
S-curve for Deceleration Arrival Time 2
Default: 0.20
Settings Pr.01-45 = 0: 0.00–25.00 sec.
Pr.01-45 = 1: 0.0–250.0 sec.
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