Alpha 6000S series User Manual page 101

Chapter 5 Detailed Function Introductions
Running Freq.(Hz)
P1.08 Time of S-curve initial
P1.09 Time of S-curve rising
Notes:

P1.08 and P1.09 are only active when the Acc/Dec mode is S-curve mode (P1.07=1) and P1.08+P1.09≤90%.

Starting process of S-curve is shown in Figure. 5-1-6 as "①", where the changing rate of output frequency
increases from 0.

Rising process of S-curve is shown in Figure. 5-1-6 as "②", where the changing rate of output frequency is
constant.

Ending process of S-curve is shown in Figure. 5-1-6 as "③", where the changing rate of output frequency
decreases to zero.

S-curve Acc/Dec mode is suitable for the conveying load such as elevator and conveying belt.
P1.10 Stop mode
0: Deceleration to stop
2: Deceleration +DC braking
Notes:

0: Dec-to-stop
After receiving the stop command, the inverter reduces its output frequency within the Dec time, and stops
when the frequency decreases to zero.

1: Coast-to-stop
After receiving the stop command, the inverter stops output immediately and the load stops under the effects
of mechanical inertia.

2: Dec-to-stop +DC braking
After receiving the stop command, the inverter reduces its output frequency according to the Dec time and
starts DC braking when its output frequency reaches the preset frequency of braking. Refer to the Notes of
P1.11~P1.15 for the functions of DC braking.
100
③
②
①
Acc Time
Figure.5-1-6 S-curve acceleration/deceleration
Setting range: 10.0~50.0% [20.0%]
Setting range: 10.0~80.0% [60.0%]
Tips:
Setting range: 0~2 [0]
1: Coast to stop
③
②
①
Time
Dec Time