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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
24VDC
5V
A
B
0V
Manual pulse
generator
(MR-HDP01)
1: The symbols in Need for wiring column indicate the following meanings:
•
: Wiring is necessary for positioning.
2: Either polarity can be connected to the common (COM).
3: If using separately-placed power supply as manual pulse generator power supply, do not connect power supply 5V(P5) on QD75MH
side. Use separately-placed power supply as 5V stabilized power supply. Using power supply of different voltage between P5 and SG
could lead to faults.
4: When using external input signal of servo amplifier, set "1" with "
for wiring of upper/lower limit signal and Section 8.1.1 for wiring of near-point dog signal.
5: Do not use P5 and SG for other than manual pulse generator power supply.
The outline diagrams of the internal circuits for the QD75MH1 external device
connection interface are shown below.
(1) Input
Pin No.
Internal circuit
1A1
1A2
1A3
1A4
1A5
1A6
1B7
1A8
1B8
(+)
1A19
(-)
1B19
(+)
1A20
(–)
1B20
(5V)
1A15
5VDC
(5V)
1B15
(0V)
1A14
(0V)
1B14
1A10
•
: Wiring is necessary depending on the situation.
Signal name
Upper-limit LS signal
4
Lower-limit LS signal
4
Near-point dog signal
4
Stop signal
External command
signal/switching signal
Common
Forced stop input signal
Manual pulse generator
A phase
Manual pulse generator
B phase
Manual pulse generator
power supply (+ 5VDC)
3,
5
Manual pulse generator
power supply (GND)
5
—
Pr.80
External signal selection". In addition, refer to Section 12.4.4
3 - 21
MELSEC-Q
Need for wiring
1
FLS
RLS
DOG
STOP
CHG
COM
EMI
EMI. COM
PULSER A+
PULSER A-
PULSER B+
PULSER B–
P5
SG
—
—
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