Specifications

1 - 11
1.1.5 Communicating signals between QD75 and each module
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)
PLC READY signal
QD75 READY signal
Forward run JOG start signal
Reverse run JOG start signal
Positioning start signal
BUSY signal
Stop signal
Start complete signal
M code ON signal
Error detection signal
Upper/lower limit signal
External
signal
Near-point dog signal
Zero signal
Drive unit READY signal
Drive unit
Manual pulse generator A-phase
Manual pulse generator B-phase
Deviation counter clear
Pulse train
Manual pulse
generator
External interface
Interface with PLC CPU
QD75
Data write/read
Y0
Y10,Y11,Y12,Y13
X0
Y8,YA,YC,YE
PLC
CPU
External
signal
Stop signal
External command signal
Positioning data write/read
Block start data write/read
Operation monitor
Parameter write/read
JOG operation (test), Inching operation
Positioning operation (test)
OPR operation (test)
Peripheral device
Peripheral device interface
Y9,YB,YD,YF
X14,X15,X16,X17
XC,XD,XE,XF
X10,X11,X12,X13
Y4,Y5,Y6,Y7
X4,X5,X6,X7
X8,X9,XA,XB
Synchronization flag
X1
Positioning complete signal