Communicating Signals Between Qd74Mh And Each Module - Mitsubishi Electric MELSEC Q Series User Manual

1 OVERVIEW

1.3 Communicating Signals Between QD74MH and Each Module

PLC CPU
PLC READY signal
Y0
All axis servo ON signal
Y1
Forced stop input signal
Y2
Positioning start signal
Y10 to Y1F
Unit READY signal
X0
Error detection signal
X1
Warning detection signal
X2
Syncronization flag signal
X3
BUSY signal
X10 to X1F
Basic parameters
OPR parameters
Manual control parameters
System parameters
Servo parameters
Control data
Positioning data
Monitor data
I/O module
The outline of the signal communication between the QD74MH (positioning module)
and PLC CPU, peripheral device and servo amplifier, etc., is shown below.
QD74MH
Position commands
Control commands
Servo parameters
Operating information of the servo
amplifer
Servo parameters
External input signal of the servo
amplifier
DOG (Proximity dog signal)
FLS (Upper stroke limit signal)
RLS (Lower stroke limit signal)
Forced stop
1 - 5
MELSEC-Q
Servo motor
M
E
Servo amplifer
External signal
DOG
FLS
RLS