C
L E A R
P
A T H
M C / S D
U
S E R
M
A N U A L
R
E V
.
3 . 0 9
1 2 0
T
EKNIC
,
I
NC
. T
EL
.
(585)
784-7454
I/O
F
UNCTIONS
Enable Input -
Asserting this input energizes the motor shaft.
Input A -
This input is used to make the motor spin in the CW
(clockwise) direction.
Input B -
This input is used to make the motor spin in the CCW
(counterclockwise) direction.
Output (HLFB) -
See HLFB section for available modes.
Notes:
•
Position sensors (switches) are used to set the stopping points.
•
In the typical application, the switch that detects the end of CW
travel is wired in series with Input A so that the command to
move is interrupted and the motor stops at the desired location.
The CCW switch is similarly wired in series with Input B.
•
CCW (counterclockwise) and CW (clockwise) are defined when
you view the motor with the shaft pointing toward you.
•
When a switch interrupts the move input, the motor will begin
to decelerate, so the stopped position will be a repeatable
distance beyond the switch. Make sure you leave enough room
after the sensor to avoid hitting the end stops.
•
ClearPath will not allow two successive moves in the same
direction, so you don't have to worry about the motor moving
past the switch as it decelerates (and thereby re-asserting the
move input).
•
Changing the state of either Input A or Input B while ClearPath
is in motion effectively cancels the move in progress. ClearPath
immediately ramps to a stop and holds position until a new
move request
is received.
•
Disable time = 10 mS
3 In this scenario, the next move request must be in the opposite direction from the previous
move request. Thus, if the motor was spinning in the CW direction when the move was
canceled, ClearPath will only respond to a CCW move request.
