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MELSEC-
3 SPECIFICATIONS AND FUNCTIONS
Input/out-
put class
External wiring
Pin
No.
Internal circuit Signal name
Need for
wiring *
1
5 Deviation counter clear CLEAR
23 Common CLEAR COM
1 PULSE F
19
CW
A phase
PULSE
PULSE COM
2 PULSE R
20
Open collector
CCW
B phase
SIGN
PULSE COM
*
2
3 (+) PULSE F+
21 (–)
CW
A phase
PULSE
PULSE F–
4 (+) PULSE R+
Output
CR
COM
SG
PP
PG
NP
NG
VDD
For MR-J2- A
22 (–)
Differential driver
CCW
B phase
SIGN
PULSE R–
*
2
*1: The meaning of “O” and “Δ” in the “need for wiring” column is as follows.
•
: Wiring is necessary in positioning.
•
: Perform wiring when necessary.
*2: Select the open collector output or differential driver output according to the drive unit being used.
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