Cw And Ccw; Feedback Pulse - Omron C200H-MC221 Operation Manual

Feedback Pulse

1-1

CW and CCW

CW (Clockwise)
CCW (Counterclockwise)
1-2 Feedback Pulse
Forward Rotation (Positive Speed Command)
Reverse Rotation (Negative Speed Command)
2
The abbreviations "CW" and "CCW" used in this manual to describe the opera-
tion of the MC Unit are defined as follows:
Clockwise is the direction in which the present position increases.
Negative limit
Counterclockwise is the direction in which the present position decreases.
Negative limit
Standard OMRON servomotors are designed for an advanced A-phase for for-
ward rotation and an advanced B-phase for reverse rotation. The MC Unit is de-
signed to comply with this phase advancement, allowing OMRON Driver Con-
necting Cables to be connected without modification.
A-phase
B-phase
A-phase
B-phase
When using servomotors by other makers, check carefully the encoder specifi-
cations. If the definition differs from the ones given above, take one of the follow-
ing actions:
· Reverse the B-phase wiring between the MC Unit and the servodriver. (Re-
verse the +B terminal and the --B terminal.)
· Set the machine parameter "encoder polarity" in the system parameters to "re-
verse rotation for encoder increase." It is initially set to the "forward rotation at
the encoder increase."
Note For more information on the machine parameter "encoder polarity," refer to MC
Support Software Operation Manual.
CW
CCW
Section 1-2
Positive limit
Positive limit