Communicating Signals Between Qd75 And Each Module - Mitsubishi Electric MELSEC-Q QD75M User Manual

1 PRODUCT OUTLINE

1.1.6 Communicating signals between QD75 and each module

PLC CPU
PLC READY signal
Y0
QD75 READY signal
X0
All axis servo ON signal
Y1
Syncronization flag
X1
Forward run JOG start signal
Y8,YA,YC,YE
Reverse run JOG start signal
Y9,YB,YD,YF
Execution prohibition flag
Y14,Y15,Y16,Y17
Positioning start signal
Y10,Y11,Y12,Y13
Positioning complete signal
X14,X15,X16,X17
BUSY signal
XC,XD,XE,XF
Start complete signal
X10,X11,X12,X13
Axis stop signal
Y4,Y5,Y6,Y7
M code ON signal
X4,X5,X6,X7
Error detection signal
X8,X9,XA,XB
Parameter write/read
Positioning data write/read
Block start data write/read
Home position return operation
(Test)
JOG operation, inching operation
Peripherral
(Test)
device
Positioning operation(Test)
interface
Operation monitor
Peripheral
device
The outline of the signal communication between the QD75 (positioning module) and
PLC CPU, peripheral device and servo amplifier, etc., is shown below.
(A peripheral device communicates with the QD75 via the PLC CPU to which it is
connected)
Interface
with
PLC CPU
Data write/read
QD75
External
interface
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MELSEC-Q
SSCNET
Operating information of
the servo amplifer
Positioning command,
control command
Servo parameter
Manual puse generator A-phase
Manual pulse
generator
Manual puse generator B-phase
Upper/lower limit signal
Near-point dog signal
External command signal/
switching signal
Stop signal
Servo
amplifer
External
signal