Mitsubishi Electric MELSEC-A/QnA Series - I;O Signals Comparison to CPU Module

7 POSITIONING MODULE REPLACEMENT
7 - 49
7.6.3 I/O signals comparison to CPU module
An addition or change of a sequence program is required because the I/O signals partly differ between
the modules.
For details of the I/O signals or sequence program, refer to the MELSEC-Q QD73A1 Positioning Module
User's Manual.
*1 The XY number same as the AD70 can be used for the QD73A1 by setting "Empty 0 point" to the "Unused" area of the
QD73A1 (first half slot: Empty 16 points) in I/O assignment of PLC parameter.
*2 A "Use prohibited" area is reserved for the system use and cannot be used by a user.
If it is turned on/off through a sequence program, the normal operation of the module cannot be guaranteed.
Input (X) Output (Y)
Signal name AD70 QD73A1 Signal name AD70 QD73A1
Unused
(The first half slot is Empty 16 points.)
*1
--
X00
to
X0F
Unused
(The first half slot is Empty 16 points.)
*1
--
Y00
to
Y0F
WDT error, H/W error X00 X10 Zero/gain adjustment data writing request -- Y1A
Module READY X01 X11 Zero/gain adjustment change request -- Y1B
OPR request X02 X12 Set value change request -- Y1C
OPR complete X03 X13 OPR start Y10 Y20
BUSY X04 X14 Absolute positioning start Y11 Y21
Positioning complete X05 X15 Forward start Y12 Y22
In-position X06 X16 Reverse start Y13 Y23
Excessive error X07 X17 Forward JOG start Y14 Y24
Error detection X08 X18 Reverse JOG start Y15 Y25
Overflow X09 X19 Speed-position mode restart Y16 Y26
Underflow X0A X1A Stop Y17 Y27
Servo READY X0B X1B Error reset Y18 Y28
Near-point dog X0C X1C Overflow reset Y19 Y29
External stop X0D X1D Underflow reset Y1A Y2A
Upper limit signal X0E X1E Speed-position switching enable Y1C Y2C
Lower limit signal X0F X1F PLC READY Y1D Y2D
OPR start complete -- X20
Use prohibited
*2
Y00
to
Y0F
Y10
to
Y19
Absolute positioning start complete -- X21
Forward start complete
(for the incremental positioning and the
speed-position control switching)
-- X22
Y1B
Y1D
to
Y1F
Y1E, Y1F
Reverse start complete
(for the incremental positioning and the
speed-position control switching)
-- X23 -- Y2E, Y2F
Synchronization flag -- X24
Zero/gain adjustment data writing complete
flag
-- X2A
Zero/gain adjustment change complete flag -- X2B
Set value change complete flag -- X2C
Operating status of the speed-position
control switch mode
-- X2D
Use prohibited
*2
X10
to
X1F
X25 to X29
X2E, X2F