Internal Circuit Of I/O Interface - Mitsubishi MELSEC-Q Series User Manual

3
SPECIFICATIONS AND FUNCTIONS
3.5.4
The following shows the schematic diagram of the internal circuit of the interface for
external device connection of the QD72P3C3.
(for axis 1)
I/O
External wiring
classification
Input
(for
positioning)
24VDC*
+
-
Output
(for
positioning)
Input
(for counter
function)
3
- 18 3.5 Specifications of I/O Interfaces with External Device

3.5.4 Internal circuit of I/O interface

Internal circuit of I/O interface
Pin
No.
390
A14
A13
A10
6.8k
A8
6.8k
A6
6.8k
A9
-
A12
+
A11
A4
A2
A3
3.9k
1/3W
A20
A19
A18
3.9k
1/3W
A17
A16
A15
* Common terminal is available to both positive common and negative common (COM).
Internal circuit
1/3W
2.2k
1/10W
1/3W 680k
1/10W
680k
1/3W
1/10W
680k
1/3W
1/10W
390
1/3W
2.2k
1/10W
390
1/3W
2.2k
1/10W
Signal name
Zero signal
Zero signal common
Near-point dog signal
Upper limit signal
Lower limit signal
Common
Deviation counter clear
Deviation counter clear
common
Pulse output F
Pulse output R
Pulse output common
Phase A pulse input 24V
Phase A pulse input 5V
Phase A common
Phase B pulse input 24V
Phase B pulse input 5V
Phase B common
PG0 1
PG0 COM 1
DOG 1
FLS 1
RLS 1
COM 1-3
CLEAR 1
CLEAR
COM 1
PULSE F 1
PULSE R 1
PULSE
COM 1-3
CH1A_24V
CH1A_5V
CH1A COM
CH1B_24V
CH1B_5V
CH1B COM