Interface Internal Circuit - Mitsubishi Electric MELSEC-Q QD75M User Manual

3 SPECIFICATIONS AND FUNCTIONS

3.4.4 Interface internal circuit

External wiring
When upper-limit
switch is not used
When lower-limit
switch is not used
2
24 V DC
5 V
A
5 V DC
B
O V
Manual pulse
generator
(MR-HDP01)
1: The symbols in Need for wiring column indicate the following meanings:
• : Wiring is necessary for positioning.
• : Wiring is necessary depending on the situation.
2: Either polarity can be connected to the common (COM).
The outline diagrams of the internal circuits for the QD75M1 external device
connection interface are shown below.
(1) Input
Pin No. Internal circuit
1A1
1A2
1A3
1A4
1A5
1A6
1A7
(+)
1A19
(–)
1B19
(+)
1A20
(–)
1B20
1A11
1A12
1A8
1A9
1A10
Signal name
Upper-limit LS signal
Lower-limit LS signal
Near-point dog signal
Stop signal
External command
signal/switching signal
Common
Manual pulse generator
A phase
Manual pulse generator
B phase
—
—
—
—
3 - 21
MELSEC-Q
Need for wiring
1
FLS
RLS
DOG
STOP
CHG
COM
PULSER A+
PULSER A–
PULSER B+
PULSER B–
— —
— —
— —
— —