Mitsubishi MELSEC Q Series

App-186
SM1848
Axis 1 start
instruction
OFF : Not executed
ON : Being executed
• This relay turns on when positioning control
by the start instruction (IPPSTRT1(P),
IPDSTRT1(P), IPSIMUL(P), IPABRST1),
JOG operation by the JOG start instruction
(IPJOG1), or OPR control by the OPR start
instruction (IPOPR1(P)) is started.
• This relay turns off when positioning
control, OPR control, or JOG operation is
completed.
S
(Instruction
execution/
Status change)
New LCPU
SM1850 Axis 1 error reset
OFF → ON: Resets the
Axis 1 error.
OFF : Clears the reset
status.
• Turning on this relay will turn off SM1845
and SM1846 and will clear the SD1845 and
SD1846 values to "0".
• Even if this relay is turned on, SM1845 will
not turn off and the SD1845 value will not
be cleared to "0" until SM1840 turns off.
U
SM1851
Axis 1 OPR
request off
OFF → ON: Axis 1 OPR
request
OFF : Cleared
Turning on this relay will forcibly turn off
SM1842.
SM1852
Axis 1 speed/
position switching
OFF : Disabled
ON : Enabled
This relay stores whether to enable switching
from speed control to position control in
speed/position switching control.
SM1860 Axis 2 busy
OFF : Not busy
ON : Busy
• This relay turns on when positioning
control, OPR control, JOG operation, or
absolute position restoration is started.
This relay turns off when each control is
completed. In positioning control, this relay
turns off when the axis 2 decelerates and
stops, and then "dwell time" elapsed. (This
relay remains on while positioning control is
being performed.)
• This relay turns off when each control is
ended due to such as an error or stop
operation.
S
(Every END
processing)
SM1861
Axis 2 positioning
completion
OFF : Not completed
ON : Completed
• This relay turns on when OPR control,
position control, or absolute position
restoration is completed.
• This relay turns off when OPR control,
positioning control, absolute position
restoration, or JOG operation is started.
• This relay remains off when JOG operation
is completed.
• This relay remains off when position control
is stopped.
S
(Instruction
execution/
Status change)
SM1862
Axis 2 OPR
request
OFF : Machine OPR
control
completed
ON : Machine OPR
control started
• This relay turns on when the CPU module
is powered on, is reset, or is set from STOP
to RUN; or the drive unit ready signal turns
off; or machine OPR control is started.
• This relay turns off when machine OPR
control is completed.
S
(Every END
processing)
Number
Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU