User Manual of EM730/EM730E Series Inverter
256
As shown in Fig. 7-33, the acceleration time is defined as the time of acceleration from
0.00 Hz to the reference frequency of acceleration/deceleration time; and the deceleration time
is defined as the time of deceleration from the reference frequency of acceleration/deceleration
time to 0.00 Hz. The actual acceleration/deceleration time varies according to the ratio between
the set frequency and reference frequency.
The reference frequency of acceleration/deceleration time is set by function code F15.09
that represents the reference frequency of acceleration/deceleration time. If F15.09=0, the
reference frequency depends on the function code F00.16 (maximum frequency). Assuming
F00.16=100.00Hz, the acceleration (deceleration) time is expressed as the time for the output
frequency to increase (decrease) from 0.00Hz (100.00Hz) to 100.00Hz (0.00Hz). If F15.09=2,
the reference frequency depends on the function code F18.01 (set frequency). Assuming
F18.01=100.00Hz, the acceleration (deceleration) time is expressed as the time for the output
frequency to increase (decrease) from 0.00Hz (100.00Hz) to 100.00Hz (0.00Hz).
Automatic switching of
acceleration and deceleration
time
Switching frequency of
acceleration time 1 and 2
0.00 to maximum
frequency F00.16
Switching frequency of
deceleration time 1 and 2
0.00 to maximum
frequency F00.16
If the motor 1 is running at the normal (e.g. non-PLC/PID) speed (e.g. non-torque) and the
acceleration/deceleration time terminals (19: acceleration and deceleration time terminal 1; 20:
acceleration and deceleration time terminal 2) are invalid, the acceleration/deceleration time 1
and acceleration/deceleration time 2 can be switched by setting F15.10 to 1, as detailed in Fig.
7-34.
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