Mitsubishi Electric MELSEC-L02SCPU User Manual page 60

(b) PULSE/SIGN mode
Forward/reverse control is based on on/off of the direction sign (SIGN).
• The direction sign turns on when the motor is rotating forward.
• The direction sign turns off when the motor is rotating in reverse.
For CCW, pulses are output 100s after the direction sign turns off.
(c) A phase/B phase mode (multiple of 1), A phase/B phase mode (multiple of 4)
Forward/reverse control is based on the difference between phase A (A) and phase B (B).
• Phase B lags phase A by 90° when the motor is rotating forward.
• Phase A lags phase B by 90° when the motor is rotating in reverse.
• When "A Phase/B Phase Mode (Multiple of 1)" is set
Ex.
When one command pulse output corresponds to 1 pulse/s, there are four leading/trailing edges per
second.
• When "A Phase/B Phase Mode (Multiple of 4)" is set
Ex.
When one command pulse output corresponds to 1 pulse/s, there is one leading/trailing edge per second.
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PULSE OFF
ON
SIGN
OFF
ON
Forward run
Move in + direction
OFF
PULSE
ON
SIGN OFF
ON
Forward run
Command 1 pulse output
Phase A
OFF
(A )
ON
Phase B
OFF
(B )
ON
Phase B runs slower
than phase A by 90 .
Forward run
Command 1 pulse output
OFF
Phase A
ON
(A )
OFF
Phase B
ON
(B )
Phase B runs slower
than phase A by 90 .
Reverse run
Move in - direction
1 pulse
100 s
Reverse run
Command 1 pulse output
OFF
ON
OFF
ON
Phase A runs slower
than phase B by 90 .
Reverse run
Command 1 pulse output
OFF
ON
OFF
ON
Phase A runs slower
than phase B by 90 .