Mitsubishi Melsec-A Series User Manual page 112

6.
PROGRA"WG
/MELSEC
[2]
Inch to position and teach
(1
1
Flow chart
7
Inching operation
Switch off PC readysignal(Y1D).
I
1
I
1
Write parameters to buffer
memory.
Switch on PC readysignal ( Y l D ) .
Enable inching function.
Give inching commands,
+
Position
YES
Wrlte data No. and present value
to buff,-r memory
For
two
or
more places
I
(2)
Conditions
8 i p d
RUllWkS Stat.
External
signal
D r i w u n i t R E A D Y
OFF STOP
ON
Interface
rignal
AD71 ready (X11
Relevant axis busy (X4, X51
Relevant axis positioning
commenced (X8, X9)
Relevant axis M code
ON
(X€, XF)
Relevant axiostop (Y15, Y16)
PC ready (Y 1 D )
lnchina function enable
I I
[X axis 471
in &Her memory
Y axis 347
OFF
I
= I =
Bit O = 1
I 1 I
I
Others
I
Parameters
Within
setting
range.
signal has been received
Neither axis should be
o r
(AD71TU)
'In GPP or AD71TU ted mode, X1 and Y1D may be off.
Table 6.6 Address Write Conditions
(3)
Timing
n
Speed (fixed at 20KPLS/secl
I
I
I
I
I
PC
ready ( Y l D )
I
I
1
BUSY (X41
l - s -
AD71 ready (X11
I
I
Inching function enable
i
(Buffer memory address 47)
I
I I
I
I
I
I
I
I
I
Inching input
I
Write command
I
Write (M24)
n
Disable inching function,
IMPORTANT
I
c j
Complete
Error code 73 is given if the inching command is given while
the AD71 is "BUSY" during positioning, zeroing or
jog
operations. For t h i s reason it is recommended that inching
is disabled when not in use.
6-33
I8 INN ffi101.A
"
I