Details Of Input Signals - Mitsubishi Electric MELSEC iQ-R-RD75P4 User Manual

11.2

Details of Input Signals

The following tables shows the ON/OFF timing and conditions of the input signals.
Device No. Signal name
X0 RD75 READY signal
X1 Module access flag
X4 Axis 1
X5 Axis 2
X6 Axis 3
X7 Axis 4
X8 Axis 1
X9 Axis 2
XA Axis 3
XB Axis 4
XC Axis 1
XD Axis 2
XE Axis 3
XF Axis 4
X10 Axis 1
X11 Axis 2
X12 Axis 3
X13 Axis 4
X14 Axis 1
X15 Axis 2
X16 Axis 3
X17 Axis 4
*1 BUSY signal turns on even when the position control of a movement amount 0 is executed. However, since the ON time is short, the ON
status may not be detected in the program.
*2 Positioning complete of the RD75 refers to the point when the pulse output from the RD75 is completed. Thus, even if Positioning
complete signal of the RD75 turns on, the system may continue operation.
11 SPECIFICATIONS OF I/O SIGNALS WITH CPU MODULE
344
11.2 Details of Input Signals
On: READY
Off: Not READY/
Watchdog timer
error
Off: Module access
disabled
On: Module access
enabled
M code ON Off: M code is not set
On: M code is set
Error detection Off: No error
On: Error occurrence
*1
BUSY Off: Not BUSY
On: BUSY
Start complete Off: Start incomplete
On: Start complete
Positioning Off: Positioning
*2
complete incomplete
On: Positioning
complete
Description
• When PLC READY signal [Y0] is turned off and on, the parameter setting
range is checked. If no error is found, this signal turns on.
• When PLC READY signal [Y0] is turned off, this signal turns off.
• When a watchdog timer error occurs, this signal turns off.
• This signal is used for interlock in a program and others.
PLC READY signal [Y0]
OFF
RD75 READY signal [X0] OFF
• After the CPU module is set to RUN, this signal turns on with the status that
allows the access from the CPU module to the RD75. This signal turns off
while the CPU module is in the STOP status.
• This signal is used for interlock in a program and others.
• 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 [Cd.7] M code ON signal OFF request.
• When no M code is specified (When [Da.10] M code is 0), this signal remains
off.
• With using continuous path control for the positioning operation, the
positioning continues even when this signal does not turn off. However, M
code ON signal ON (Warning code: 0992H) will occur.
• When PLC READY signal [Y0] is turned off, this signal also turns off. If the
operation is started while the M code is on, M code ON signal ON start (Error
code: 19A0H) will occur.
• This signal turns on when an error occurs, and turns off when the error is reset
on [Cd.5] Axis error reset.
• This signal turns on at the start of the positioning, OPR, or JOG operation.
This signal turns off when the time set in [Da.9] Dwell time has passed after
the positioning operation 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 [Cd.21]
Manual pulse generator enable flag is on.
• This signal turns off at error completion or positioning stop.
• This signal turns on when the RD75 starts the positioning processing since
Positioning start signal is turned on. (Start complete signal also turns on
during OPR control.)
Positioning start signal [Y10]
OFF
Start complete signal [X10] OFF
• 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, Positioning complete
signal of the interpolation axis turns on for the time set to the reference axis.
(This signal does not turn on when [Pr.40] Positioning complete signal output
time is 0.)
• This signal will turn off if the positioning (including OPR), JOG operation,
inching operation, or manual pulse generator operation is started while this
signal is on.
• This signal will not turn on when the speed control or positioning is canceled
midway.
ON
ON
ON
ON