Function Application
‑531‑
3.1.3.3 Acceleration/Deceleration Time Setting
Acceleration time is the time that an AC drive needs to accelerate from zero frequency
to the acceleration/deceleration time base frequency (F0‑25). Deceleration time is the
time that an AC drive needs to decelerate from the acceleration/deceleration time
base frequency (F0‑25) to zero frequency.
Figure 3‑35 Acceleration/deceleration time
The AC drive provides four groups of acceleration/deceleration time, which can be
selected by using DI terminal functions 16 and 17. The four groups of time is set
through the following parameters:
Group 1: F0‑17 and F0‑18
Group 2: F8‑03 and F8‑04
Group 3: F8‑05 and F8‑06
Group 4: F8‑07 and F8‑08
Example
In the following example, DI7 and DI8 are used to switch among different groups of
acceleration/deceleration time.
1. Set F4‑06 and F4‑07 to use DI7 and DI8 for switchover.
Para. No. Name Value
Description
F4‑06 DI7 function 16
Acceleration/Deceleration time selection terminal
1
F4‑07 DI8 function 17
Acceleration/Deceleration time selection terminal
2
2. Set four groups of acceleration/deceleration time parameters to set the
acceleration/deceleration time.
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