ADLINK Technology PCI-8132, Руководство пользователя, Страница: 43 / 123

Operation Theorem
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35
♦
Relative Function:
_8132_set_pls_optmode(): Refer to section 6.4
4.1.2 Constant Velocity Motion
This mode is used to operate one axis motor at constant velocity motion.
The output pulse accelerates from a starting velocity (str_vel) to the
specified constant velocity (max_vel). The
_ 8132 _v_move() function is
used to accelerate constantly while the _ 8132 _sv_move() function is to
accelerate according to S-curve (constant jerk). The pulse output rate will
keep at maximum velocity until another velocity command is set or stop
command is issued. The
_ 8132 _v_change() is used to change speed
during moving. The _ 8132 _ v_stop() function is used to decelerate the
motion to zero velocity (stop). The velocity profile is shown as following.
Note that v_stop() function can be also be applied to stop outputting
command pulses during Preset Mode (both trapezoidal and S-curve
Motion) , Home Mode or Manual Pulser Mode operations .
♦
Relative Functions:
_8132_v_move( ), _8132_v_stop( ), _8132_sv_move(): Refer to
section 5.5
OUT
DIR
Negative Command
OUT
DIR
Positive Command