Mitsubishi MELSEC-A series User Manual

6. PROGRAMMING /MELSEC-A
6.1.2 Nota on programming
/-
(1 ) Initial program
The following program steps should be used with the AD71.
-4
M9038
XA (battery error) n
Ii
M9006 (ACPU battery error) I
I
W
(ACPU RUN)
-it
M9039 Interlock
IU
XI
W
b Provide stan interlock.
AD71 ready
Usable for stop, etc.
xB Error detection
tb
<b
I
0
sequence
‘Resetting the ACPU while the AD71
is “bury” may cause it to flag an error, to
guard against this use
the above sequence.
‘Resets A071 error 1 scan
after CPU RUN.
Bettew error
PC resdv
Fig. 6.2 Initial Program
(2) PC ready reset
Where necessary, the PC ready signal should be disabled when
an error is detected.
(3) Zeroing
The system should be zeroed before positioning is started and
when a zeroing request is received from the AD71.
(4) Zeroing actuator
Ensure that the zeroing actuator is serviceable and reliable.
Failure to receive an input from this switch will allow the zeroing
routine to maintain the drive signal.
(5) Overrun precautions
1
,
The upper and lower stroke limits will only be operable if the
AD71 is functioning normally. Upper and lower limit switches
should be hard wired into the system.

Mitsubishi MELSEC-A series Specifications

General

Brand	Mitsubishi
Model	MELSEC-A series
Category	Controller
Language	English