Nova Electronics MCX514, Руководство пользователя

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2.2.5 Non-symmetrical S-Curve Acceleration/Deceleration
In S-curve acceleration/deceleration driving, a non-symmetrical S-curve can be created by setting a jerk and a deceleration
increasing rate individually. However, in non-symmetry S-curve acceleration/deceleration fixed pulse driving, a deceleration point
must be specified manually because automatic deceleration is not available. Since a triangle form prevention function (1/12 rule)
does not work either, a drive speed must be set according to the acceleration/ deceleration increasing rate and the number of output
pulses for fixed pulse driving.
Deceleration increasing rate (DJ)
Speed
time
Initial Speed
Drive Speed
time
Acceleration
/ Deceleration
Acceleration Deceleration
Acceleration increasing rate (JK)
Fig. 2.2-14 Non-symmetry S-Curve Acceleration/Deceleration Driving
To perform non-symmetry S-curve acceleration / deceleration driving, bits D2 to 0 of WR3 register and the following parameters
must be set.
Table 2.2-8 Mode Setting
：
Non-symmetry S-curve Acceleration / Deceleration
Mode Setting Bit Symbol Setting Comment
WR3/D0 MANLD 1 Manual deceleration
WR3/D1 DSNDE 1
When in deceleration, deceleration setting value and deceleration
increasing rate are used.
WR3/D2 SACC 1 S-curve acceleration / deceleration
Table 2.2-9 Setting Parameters
：
Non-symmetry S-curve Acceleration / Deceleration
Parameter Symbol Comment
Jerk JK
Deceleration increasing rate DJ
Acceleration AC Set the maximum value
：
536,870,911 (1FFF FFFFh)
Deceleration DC Set the maximum value
：
536,870,911 (1FFF FFFFh)
Initial speed SV
Drive speed DV
Drive pulse number / Finish point TP Not required for continuous pulse driving.
Manual deceleration point DP
・
Set the value calculated by subtracting the number of pulses that were
utilized at deceleration from the number of output pulses in fixed
pulse driving.
・
Not required for continuous pulse driving.