JPS JMD-STD-90A, Руководство пользователя

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92

Pr.248

ACC Time
The set speed up to 1000rpm 0rpm time needed; unit: 0.001 seconds.

Pr.249

DEC Time
1000rpm speed setting down the time needed to 0rpm; Unit: 0.001 seconds 。
Pr.248
Acc. Time
1000rpm
1500rpm
4 ms. 5 ms
rpm
time
500rpm
Pr.249
Dec. Time
∆
= 1000rpm
Based on the figure below:
Acceleration ramp setting = 8 ms / Krpm, deceleration setting = 10 ms / Krpm.
Figure acceleration ramp is 1000rpm / 8 ms, deceleration slope is 1000rpm/10ms.
Therefore, from 0rpm

1500rpm requires a total of 8 +4 = 12 ms
from 1500rpm

0rpm need a total of 10 +5 = 15 ms.

Pr.250

Scurve T1 time (ACC Start)

Pr.251

Scurve T2 time (ACC End)

Pr.252

Scurve T3 time (DEC Start)

Pr.253

Scurve T4 time (DEC End)
S-curve characteristic can be reduced when the machine starts and stops the vibration generated;
setting the longer, the more obvious the effect of delaying,Because of the speed change caused
by the vibration is smaller, but the relative acceleration or deceleration also increases the overall
time
。
Speed
ACC
T1 T2
T3 T4
Ta
Speed
T
1000RPM
Pr.248(Acc. Time) =100 (ms/Krpm)
Pr.250 (Scurve T1 time) =100 (ms)
Pr.251 (Scurve T2 Time) =100(ms)
Ta (totally acc. time) =
(0.5 x Scurve T1 Time) + (Acc. Time) + (0.5 x ScurveT2 Time) = 200ms Example: Explain how the S-curve
affects the Acc. and Dec. timing.