Chapter 5 Parameter Introductions
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the load that needs descending torque at low frequency, and short-time acceleration at
high frequency, such as conveying belt.
Running Freq.(Hz)
Time
Acc Time
Dec Time
③
②
①
①
③
②
Fig. 5-1-5 S-curve acceleration/deceleration
P1.06 Time of S-curve initial
Range: 10.0
～
50.0%
【
20.0%
】
P1.07 Time of S-curve rising
Range: 10.0
～
80.0%
【
60.0%
】
Note:
P1.06 and P1.07 are only active when the Acc/Dec mode is S-curve mode (P1.05=1) and
P1.06+P1.07≤90%.
Starting process of S-curve is shown in Fig. 5-1-5 as “①”, where the changing rate of
output frequency increases from 0.
Rising process of S-curve is shown in Fig. 5-1-5 as “②”, where the changing rate of
output frequency is constant.
Ending process of S-curve is shown in Fig. 5-1-5 as “③”, where the changing rate of
output frequency decreases to zero.
Tips:
Scurve Acc/Dec mode is suitable for the conveying load such as elevator and
conveying belt.
P1.08 Stop mode
Range: 0～2【0】
0: Deceleration to stop 1: Coast to stop
2: Deceleration +DC braking
Note:
◆0: Dec-to-stop
After receiving the stop command, the ac drive reduces its output frequency within the
Dec time, and stops when the frequency decreases to zero.
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