Mitsubishi Electric MELSEC Q Series Programming Manual page 83

3 POSITIONING DEDICATED SIGNALS
Do not turn the start accept flags ON/OFF in the user side.
• If the start accept flag is turned off using the Motion SFC program or MT Developer2 while
this flag is on, no error will occur but the positioning operation will not be reliable. Depending
on the type of machine, it might operate in an unanticipated operation.
• If the start accept flag is turned on using the Motion SFC program or MT Developer2 while
this flag is off, no error will occur but the "start accept on error" will occur at the next starting
and cannot be started.
The start accept flag list is shown below.
Axis No. Device No.
1 M2001
2 M2002
3 M2003
4 M2004
5 M2005
6 M2006
7 M2007
8 M2008
(3) Motion error history clear request flag (M2035)
This flag is used to clear the backed-up Motion error history (#8640 to #8735).
The Motion error history is cleared at leading edge of M2035.
After detection of leading edge of M2035, the Motion error history is cleared, and
then the M2035 is automatically turned OFF.
(4) Motion SFC debugging flag (M2038) .......................... Status signal
This flag turns on when it switches to the debug mode of the Motion SFC
program using MT Developer2.
It turns off with release of the debug mode.
(5) Motion error detection flag (M2039) ............................ Status signal
This flag turns on with error occurrence of the Motion CPU.
Turn off this flag by the user side, after checking the error contents and removing
the error cause.
The self-diagnosis error information except stop error is cleared at the turning
M2039 ON to OFF.
Axis No. Device No.
9 M2009
10 M2010
11 M2011
12 M2012
13 M2013
14 M2014
15 M2015
16 M2016
CAUTION
......................... Command signal
3 - 34
Axis No. Device No. Axis No.
17 M2017 25
18 M2018 26
19 M2019 27
20 M2020 28
21 M2021 29
22 M2022 30
23 M2023 31
24 M2024 32
(Note): The following range is valid.
• Q172DSCPU
• Q172DCPU(-S1) : Axis No.1 to 8
Device No.
M2025
M2026
M2027
M2028
M2029
M2030
M2031
M2032
: Axis No.1 to 16