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STR2 Hardware Manual
920-0059B
1/30/2014
Step 6: Step Pulse Type
Most indexers and motion controllers provide motion commands in the “Step and Direction”
format. e Step signal pulses once for each motor step and the direction signal commands
direction. However, a few PLCs use a dierent type of command signal: one signal pulses once
for each desired step in the clockwise direction (called STEP CW), while a second signal pulses
for counterclockwise motion (STEP CCW). e STR drives can accept this type of signal if you
remove the drive cover and move jumper S3 from the “1-2” position to the “1-3” position. In
STEP CW/STEP CCW mode, the CW signal should be connected to the STEP input and the
CCW signal to the DIR input.
Step & Direction STEP CW & STEP CCW
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