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MELSEC-A
3 SPECIFICATIONS AND FUNCTIONS
3.5.4 Input/output interface internal circuit
The outline diagram of the internal circuit for the AD75 external device connection
interface is shown below.
Input/out-
put class
External wiring
Pin
No.
Internal circuit
Signal name
Need for
wiring *1
11
Near-point dog signal
DOG
12
Upper limit signal
FLS
13
Lower limit signal
RLS
14
Stop signal
STOP
15
Speed/position
changeover signal
CHG
16
External start signal
STRT
35
36
Common COM
(+)
9
PULSER A+
(–)
27
Manual pulse generator
A phase
PULSER A–
(+)
10
PULSER B+
(–)
28
Manual pulse generator
B phase
PULSER B–
7
Drive unit READY
READY
8 In-position
signal
INPS
26 Common
COM
6
24
Zero point signal
PG0
Input
24VDC
When not using
upper limit switch
When not using
lower limit switch
5VDC
5V
0V
A
B
Manual pulse
generator
(MR-HDP01)
RD
INP
VDD
COM
LZ
LZR
For MR-J2- A
25
Common PG0
COM
*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: The terminal connected to the common line may be either positive or negative.
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Summary of Contents for A1SD75P1-S3
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