Plc Cpu) - Mitsubishi Electric MELSEC-LD77MS2 User Manual

3.3.2 Details of input signals (LD77MS
Device
Signal name
No.
X0 READY
X1 Synchronization flag OFF: Module
X4 Axis 1 M code ON
X5 Axis 2
X6 Axis 3
X7 Axis 4
X8 Axis 1 Error
detection
X9 Axis 2
XA Axis 3
XB Axis 4
XC Axis 1 BUSY
(Note-1)
XD Axis 2
XE Axis 3
XF Axis 4
X10 Axis 1 Start
complete
X11 Axis 2
X12 Axis 3
X13 Axis 4
X14 Axis 1 Positioning
complete
X15 Axis 2
(Note-2)
X16 Axis 3
X17 Axis 4
The ON/OFF timing and conditions of the input signals are shown below.
(1) LD77MS2/LD77MS4
ON: READY • When the PLC READY signal [Y0] turns from OFF to ON, the parameter setting range
is checked. If no error is found, this signal turns ON.
OFF: Not READY/
• When the PLC READY signal [Y0] turns OFF, this signal turns OFF.
Watch dog
timer error
• When watch dog timer error occurs, this signal turns OFF.
• This signal is used for interlock in a sequence program, etc.
• After the PLC is turned ON or the CPU module is reset, this signal turns ON if the
access
access from the CPU module to the Simple Motion module is possible.
disabled
• When "Asynchronous" is selected in the module synchronization setting of the CPU
ON: Module
module, this signal can be used as interlock for the access from a sequence program
access
to the Simple Motion module.
enabled
OFF: M code is • In the WITH mode, this signal turns ON when the positioning data operation is started.
not set In the AFTER mode, this signal turns ON when the positioning data operation is
completed.
ON: M code is
set
• This signal turns OFF with the "
• When M code is not designated (when "
LOOP to LEND repetitions
• With using continuous path control for the positioning operation, the positioning will
continue even when this signal does not turn OFF. However, a warning will occur.
(Warning code: 503)
• When the PLC READY signal [Y0] turns OFF, the M code ON signal will also turn
OFF.
• If operation is started while the M code is ON, an error will occur.
OFF: No error • This signal turns ON when an error listed in Section 16.4 occurs, and turns OFF when
the error is reset on "
ON: Error
occurrence
OFF: Not BUSY
• This signal turns ON at the start of positioning, OPR or JOG operation. It turns OFF
ON: BUSY
when the "
positioning stops. (This signal remains ON during positioning.)
• This signal turns OFF when the positioning is stopped with step operation.
• During manual pulse generator operation, this signal turns ON while the "
Manual pulse generator enable flag
• This signal turns OFF at error completion or positioning stop.
OFF: Start • This signal turns ON when the positioning start signal turns ON and the Simple Motion
incomplete module starts the positioning process.
ON: Start (The start complete signal also turns ON during OPR control.)
complete
Positioning start signal [Y10]
Start complete signal [X10]
OFF: Positioning
• This signal turns ON for the time set in "
incomplete
from the instant when the positioning control for each positioning data No. is
ON: Positioning
completed.
complete
For the interpolation control, the positioning completed signal of interpolation axis
turns ON during the time set to the reference axis.
(It does not turn ON when "
• If positioning (including OPR), JOG/Inching operation, or manual pulse generator
operation is started while this signal is ON, the signal will turn OFF.
• This signal will not turn ON when speed control or positioning is canceled midway.
Chapter 3 Specifications and Functions

PLC CPU)

PLC READY signal [Y0] OFF
READY signal [X0] OFF
Cd.7
" is "0"), this signal will remain OFF.
Axis error reset".
Cd.5
Dwell time/JUMP destination positioning data No.
Da.9
" is ON.
Positioning complete signal output time
Pr.40
3 - 19
Details
ON
ON
".
M code OFF request
M code/Condition data No./Number of
Da.10
" has passed after
ON
OFF
ON
OFF
Positioning complete signal output time
Pr.40
Cd.21
"
" is "0".)