ADLINK PCI-8164 - Manual (Page 151)

Operation Theory 139
4.8 Hardware backlash compensator and vibration
suppression
Whenever direction change has occurred, the card outputs a
backlash corrective pulse before sending the next command. The
function _8164_backlash_comp() sets the pulse number.
In order to minimize vibration when a motor stops, the card can
output a single pulse for a negative direction and then single pulse
for a positive direction right after completion of a command move-
ment. Refer to the timing chart below, the
_8164_suppress_vibration() function is used to set T1 and
T2.
Related function:
X
_8164_backlash_comp(), _8164_suppress_vibration()
Refer to section 6.6