Mitsubishi Electric MELSEC-L LD75D, User Manual

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67
CHAPTER 3 SPECIFICATIONS AND FUNCTIONS
3
3.
3 Spec
ificat
ions
o
f I
nput
/O
ut
put
Signals wit
h CPU
M
odul
e
3.3.2
Details of input signals (LD75 to CPU module)
The ON/OFF timing and conditions of the input signals are shown below.
Device
No.
Signal name Details
X0 LD75 READY
ON: READY
OFF: Not
READY/Watch
dog timer error
• 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.
• When the PLC READY signal [Y0] turns OFF, this signal turns OFF.
• When watch dog timer error occurs, this signal turns OFF.
• This signal is used for interlock in a program, etc.
X1 Synchronization flag
OFF: Module access
disabled
ON: Module access
enabled
• After the programmable controller is turned ON or the CPU module is reset, this signal
turns ON if the access from the CPU module to the LD75 is possible.
• When "Asynchronous" is selected in the module synchronization setting of the CPU
module, this signal can be used as interlock for the access from a program to the LD 75.
X4
X5
X6
X7 Axis 1
Axis 2
Axis 3
Axis 4
M code ON
OFF: M code is not set
ON: M code is set
• In the WITH mode, this signal turns ON when the positioning data operation is started. In
the AFTER mode, this signal turns ON when the positioning data operation is completed.
• This signal turns OFF with the "[Cd.7] M code OFF request".
• When M code is not designated (when "[Da.10] M code" is "0"), this signal will remain
OFF.
• With using continuous path control for the positioning operation, the positioning will
continue even when this signal does not turn OFF. However, the warning "M CODE ON
SIGNAL START" (warning code: 503) will occur.
• When the PLC READY signal [Y0] turns OFF, the M code ON signal will also turn OFF.
• If the operation is started while the M code is ON, the error "M CODE ON SIGNAL
START" (error code: 536) will occur.
X8
X9
XA
XB
Axis 1
Axis 2
Axis 3
Axis 4
Error
detection OFF: No error
ON: Error occurrence • This signal turns ON when an error listed in  Page 647, Section 15.4, and turns OFF
when the error is reset on "[Cd.5] Axis error rest".
XC
XD
XE
XF
Axis 1
Axis 2
Axis 3
Axis 4
BUSY
*1
OFF: Not BUSY
ON: BUSY
• This signal turns ON at the start of positioning, OPR or JOG operation. It turns OFF when
the "[Da.9] Dwell time" has passed after 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 "[Cd.21] Manual
pulse generator enable flag" is ON.
• This signal turns OFF at error completion or positioning stop.
X10
X11
X12
X13 Axis 1
Axis 2
Axis 3
Axis 4
Start
complete OFF: Start incomplete
ON: Start complete
• This signal turns ON when the positioning start signal turns ON and the LD75 starts the
positioning process. (The start complete signal also turns ON during OPR control.)
X14
X15
X16
X17 Axis 1
Axis 2
Axis 3
Axis 4
Positioning
complete
*2
OFF: Positioning
incomplete
ON: Positioning
complete
• This signal turns ON for the time set in "[Pr.40] Positioning complete signal output time"
from the instant when the positioning control for each positioning data No. is completed.
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 "[Pr.40]
Positioning complete signal output time" is "0".)
• 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.
OFF
ON
OFF
ON
PLC READY signal
LD75 READY signal
[Y0]
[X0]
OFF
ON
OFF
ON
Positioning start signal [Y10]
Start complete signal [X10]