Mitsubishi MELSEC Q Series

App-187
8
8
8
8
A
6
7
8
Appendix3 SPECIAL RELAY LIST
SM1863
Axis 2 OPR
completion
OFF : Not completed
ON : Completed
• This relay turns on when machine OPR
control is completed.
• This relay turns off when OPR control,
positioning control, absolute position
restoration, or JOG operation is started; or
the CPU module is set from STOP to RUN;
or the drive unit ready signal turns off.
S
(Instruction
execution/
Status change)
New LCPU
SM1864 Axis 2 speed 0
OFF : Operating at
speed other than
0
ON : Operating at
speed 0
• This relay turns on when JOG operation or
speed control in speed/position switching
control set at a speed of "0" is started.
• This relay turns on when speed is changed
with a new speed value of "0", and turns off
when speed is changed with a new speed
value other than "0".
• This relay turns off when SM1860 turns off.
S
(Every END
processing)
SM1865 Axis 2 error
OFF : No error
ON : Error
• This relay turns on if an error occurs.
• The present error can be checked by
SD1865.
• This relay is turned off by turning on
SM1870.
SM1866 Axis 2 warning
OFF : No warning
ON : Warning
• This relay turns on if a warning occurs.
• The present warning can be checked by
SD1866.
• This relay is turned off by turning on
SM1870.
SM1867
Axis 2 start in
busy status
OFF : No start
attempted in
busy status
ON : Start attempted in
busy status
• This relay turns on when positioning
control, OPR control, JOG operation, or
absolute position restoration is attempted
while the axis 2 is in the busy status. The
executed start instruction will be ignored.
• This relay is reset by the user.
S
(Instruction
execution)
/U
SM1868
Axis 2 start
instruction
OFF : Not executed
ON : Being executed
• This relay turns on when positioning control
by the start instruction (IPPSTRT2(P),
IPDSTRT2(P), IPSIMUL(P), IPABRST2),
JOG operation by the JOG start instruction
(IPJOG2), or OPR control by the OPR start
instruction (IPOPR2(P)) is started.
• This relay turns off when positioning
control, OPR control, or JOG operation is
completed.
S
(Instruction
execution/
Status change)
SM1870 Axis 2 error reset
OFF → ON: Resets the
Axis 2 error.
OFF : Clears the reset
status.
• Turning on this relay will turn off SM1865
and SM1866 and will clear the SD1865 and
SD1866 values to "0".
• Even if this relay is turned on, SM1865 will
not turn off and the SD1865 value will not
be cleared to "0" until SM1860 turns off.
U
SM1871
Axis 2 OPR
request off
OFF→ON: Axis 2 OPR
request
OFF : Cleared
Turning on this relay will forcibly turn off
SM1862.
SM1872
Axis 2 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.
Number
Name Meaning Explanation
Set by
(When Set)
Corres-
ponding
ACPU
M9
Corresponding
CPU