Mitsubishi Electric MELSECQ Series User Manual page 100

5 SETUP AND PROCEDURES BEFORE OPERATION
CW
CCW
Forward
run
CW is output from the "PULSE F" external I/O signal and CCW from "PULSE R". (Refer to "Section 3.4.3".)
Forward run and reverse run are controlled with the ON/OFF
of the direction sign (SIGN).
• The motor will forward run when the direction sign is HIGH.
• The motor will reverse run when the direction sign is LOW.
PULSE
SIGN
PULSE is output from the "PULSE F" external I/O signal and SIGN from "PULSE R". (Refer to "Section 3.4.3".)
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[Switch 1] Pulse output mode
Set the pulse output mode that matches the drive unit used.
Use "Switch 2" to change between the positive logic and negative logic of the
pulse.
The following are pulse output mode examples.
(1) CW/CCW mode
During forward run, the forward run feed pulse (CW) will be output.
During reverse run, the reverse run feed pulse (CCW) will be output.
Positive logic
Reverse
run
(2) PULSE/SIGN mode
Positive logic
Forward Reverse
run run
Move in +
Move in -
direction
direction
[Switch 2] Pulse output logic selection, deviation counter clear output
logic selection
Set the pulse output signal (PULSE F/PULSE R) logic and deviation counter
clear output signal (CLEAR) logic according to the externally connected device.
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Negative logic
CW
CCW
Forward
run
Negative logic
Forward run and reverse run are controlled with the ON/OFF
of the direction sign (SIGN).
• The motor will forward run when the direction sign is LOW.
• The motor will reverse run when the direction sign is HIGH.
PULSE
SIGN
Forward
run
Move in +
direction
MELSEC-Q
Reverse
run
Reverse
run
Move in -
direction
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