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 4 0
T
EKNIC
,
I
NC
. T
EL
.
(585)
784-7454
M
ULTI
-S
ENSOR
P
OSITIONING
:
B
I
-
DIRECTIONAL
(H
OME TO
H
ARD
S
TOP
)
M
ODE
D
ESCRIPTION
Move to a maximum of 16 different positions using simple I/O from your
PLC, microcontroller or similar to control ClearPath's direction and
position.
Wire up to 16 switches or sensors in series with Input B. Assert the Enable
Input to energize the motor windings. Once homing is complete, a trigger
pulse starts ClearPath moving in the direction indicated by Input A. When
Input B sees a count of transitions equal to the count of trigger pulses,
ClearPath will ramp to a stop at the user-defined rate. (These transitions
are typically switch closures or sensor interruptions.)
Signal
Function
Input Type
Input A
Motor position vs. time
Input B
Enable/
Direction Select
Sensors
Enable
Trigger
Pulse Enable line low to trigger moves
Trigger
Logic: High=CW Low=CCW
Logic: High=On Low=Off
Logic: High=Enable Low=Disable
0
1
0
1
t
p+
p-
Example Timing
Notes:
ClearPath must be homed before use.
Moves are triggered on rising edge of trigger pulse.
0
1
Home
P1
P1
P2
P2
P3
Trigger pulse
Multi-Sensor Position: Bi-directional (Home to Hard Stop)
Position Control
I/O
F
UNCTIONS
Enable Input -
Asserting this input energizes the motor shaft. A short
pulse (user-definable) on this input is the trigger that starts a move. (A
"pulse" is a momentary interruption of current into the Enable input.)
Input A -
This input selects the direction of rotation.
Input B -
Transitions on this input count up until they equal the count of
transitions seen on Input A, at which time ClearPath will ramp to a stop.
Output (HLFB) -
See HLFB section for available modes.
Notes:
•
Up to 16 sensors/switches can be placed along an axis and their
outputs wired-ORed for multiple stops.
•
Multiple trigger pulses issued in the same direction before a
sensor is detected will cause the motor to continue through the
number of sensors matching the number of pulses seen.
Example: If you send 3 trigger pulses, ClearPath moves to the
third sensor position.
•
ClearPath will always finish moves in one direction before
executing moves commanded in the other direction.
MCPV
Available on