Difference between revisions of "Pulse and direction"

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[[File:Pulse and direction wiki.png|thumb|Pulse and direction signals|400px]]
 
[[File:Pulse and direction wiki.png|thumb|Pulse and direction signals|400px]]
'''Pulse and direction''', '''step and direction''' or '''pulse train''' refers to digital signaling type used in position control. Pulse & dir is famous from stepping motor drives but it also can be used in many servo drives as position or velocity [[Reference signal|reference signal]].
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'''Pulse and direction''', '''step and direction''' or '''pulse train''' refers to digital signaling type used in position control. Pulse & dir is famous from stepping motor drives but it also can be used in many servo drives as position or velocity [[setpoint signal]].
 
==Principle==
 
==Principle==
 
Pulse & dir contains two digital signal lines:
 
Pulse & dir contains two digital signal lines:

Revision as of 21:23, 24 June 2013

Pulse and direction signals

Pulse and direction, step and direction or pulse train refers to digital signaling type used in position control. Pulse & dir is famous from stepping motor drives but it also can be used in many servo drives as position or velocity setpoint signal.

Principle

Pulse & dir contains two digital signal lines:

  • Pulse - a signal that will control motion distance & speed
  • Direction - a signal that will control direction of motion

Pulse has constant distance increment, i.e. 1/1000 of revolution. So to rotate motor one revolution it takes 1000 pulses. To rotate in reverse direction, direction signal state is changed.