Chapter 6 Specification of Parameters GK600 User Manual
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2: S-curve Accel/Decel A
By adding a period of S-curve time to the first and last segments of Accel/Decel, it can
improve the smoothness of start/stop and prevent mechanical impact. See Fig. 6-14:
Fig. 6-14
Accel/Decel rate changes gradually at the first and last segments of S-curve time. At the middle
segment of S-curve, it is linear Accel/Decel rate, which is determined by enabled Accel/Decel
time 1~4. Therefore, the actual Accel/Decel time is longer than linear Accel/Decel if this
parameter value is selected.
Actual Accel time = linear Accel time + (Time of first segment of Accel S-curve
+ Time of last segment of Accel S-curve)/2
Actual Decel time = linear Decel time + (Time of first segment of Decel S-curve + Time of last
segment of Decel S-curve)/2
Example:
Assuming that the maximum frequency b0-08 is 50Hz and the Accel time set is 6s, the linear
Accel time from initial status 10Hz to 40Hz = 6s × (40Hz-10Hz)/50Hz = 3.6s
Assuming b2-15 = 0.20s and b2-16 = 0.40s, the actual Accel time under “S-curve Accel/Decel
A” = 3.6s + (0.20s + 0.40s)/2 = 3.9s.
ATTENTION:
Provided the above-noted calculated linear Accel time is less than (Time of first segment of
Accel S-curve + Time of last segment of Accel S-curve)/2, there will not be linear part. Decel
is the same as above.
3: S-curve Accel/Decel B
Schematic diagram is shown as Fig. 6-15:
输出频率
时间
b2-15
b2-16
b2-17
b2-18
f
t1
t2
直线
加速
Output frequency
Time
Linear
Accel
