Data write/read
Parameter write/read Positioning data write/read Block start data write/read
OPR operation (test)
Peripheral JOG/Inching operation
device Positioning operation (test) interface
Operation monitor
Peripheral device
X8,X9,XA,XB
Error detection signal
X4,X5,X6,X7
M code ON signal
XC,XD,XE,XF X10,X11,X12,X13 Y4,Y5,Y6,Y7
X14,X15,X16,X17
Y10,Y11,Y12,Y13
Y14,Y15,Y16,Y17
Y8,YA,YC,YE
Y9,YB,YD,YF
Y0
X0
X1
PLC
CPU
Positioning complete signal
Positioning start signal
Reverse run JOG start signal Execution prohibition flag
QD75 READY signal Syncronization flag Forward run JOG start signal
PLC READY signal

1 PRODUCT OUTLINE

1.1.5 Communicating signals between QD75 and each module

MELSEC-Q

The outline of the signal communication between the QD75 and PLC CPU, peripheral device and drive unit, etc., is shown below.

(A peripheral device communicates with the QD75 via the PLC CPU to which it is connected)

QD75

Drive unit READY signal

Upper/lower limit signal

Near-point dog signalExternalsignal

Zero signal

Drive unit

Deviation counter clear

External Pulse train interface

Manual pulse generator A-phase Manual pulse

Manual pulse generator B-phase generator

BUSY signal

Stop signal

External

Start complete signal

External command signal

signal

Axis stop signal

 

 

Interface with

PLC

CPU

1 - 12

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Mitsubishi Electronics QD75P, QD75D user manual Communicating signals between QD75 and each module