Connection To External Devices; I/O Signals - Mitsubishi Electric MELSEC-L02SCPU User Manual

7.2

Connection to External Devices

7.2.1

I/O signals

The following shows the simplified diagrams of the internal circuits of LCPU external device connection interface. ""
in the signal name indicates either 1 (Axis 1) or 2 (Axis 2). For I/O signal settings, refer to  Page 56, Section 7.3.
(1) Input
Pin number
External wiring
Axis 1
24VDC
B20
B19
*1
B18
24VDC
B17
B16
*1
B15
24VDC
B14
B13
*1
B12
24VDC
B11
B10
B09
B08
B07
B06
*1 High-speed inputs can be connected based on the 24V input mode or differential input mode.
Internal circuit
Axis 2
A20
3.6k
1/2W
A19
220
680
1/10W
A18
A17
3.6k
1/2W
A16
220
680
1/10W
A15
A14
3.6k
1/2W
A13
220
680
1/10W
A12
A11
1k
1/10W
A10
5.6k
1/3W
1k
1/10W
A09
5.6k
1/3W 1k
1/10W
A08
5.6k
1/3W 1k
1/10W
A07
5.6k
1/3W
1k
1/10W
5.6k
A06
1/3W
CHAPTER 7 POSITIONING FUNCTION
Signal name
-
(Not used for the positioning function)
Zero signal (PG0 )
(PG0
Input common
External command signal (CHG )
Drive unit ready signal (READY )
Near-point watchdog signal (DOG )
Upper limit signal (FLS )
Lower limit signal (RLS )
7
+24V
(PG0 -24V)
Differential
(PG0 -DIFF)
COM
-COM)
51