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MELSEC-
A
12 CONTROL AUXILIARY FUNCTIONS
(2) Precautions during control
(a) Before teaching, a "machine zero point return" must be carried out to
establish the zero point. (When a current value change function, etc., is
carried out, "Current feed value (RWrn+0 to 1, RWrn+8 to 9)" may not show
absolute addresses having the zero point as a reference.)
(b) Teaching cannot be carried out for positions to which movement cannot be
executed by manual control (positions to which the workpiece cannot
physically move). (During center point designation circular interpolation
control, etc., teaching of "
Da.6 Arc address" cannot be carried out if the
center point of the arc is not within the moveable range of the workpiece.)
(c) Writing to the flash ROM can be executed up to 100,000 times.
Writing to the flash ROM will become impossible after 100,000 times.
(3) Data used in teaching
The following control data is used in teaching.
Setting item
Setting
value
Setting details
Buffer memory address
Axis 1 Axis 2
Cd.4
Target axis
Set the writing destination axis.
1: Axis 1
2: Axis 2
4: Interpolation of axis 1 and axis 2
1103
Cd.5
Positioning data
No.
Set the "positioning data No." (1 to 600) of the
writing destination.
1104
Cd.6
Write pattern
Set the address to which the "current feed
value" will be written.
5: Write to the "
Da.5 Positioning
address/movement amount"
6: Write to the "
Da.6 Arc address".
1105
Cd.7
Read/write
request
2 Request writing to the positioning data. 1106
Cd.9
Flash ROM write
request
1
Write the set details to the flash ROM (backup
the changed data).
1138
* Refer to section "5.7 List of control data" for details on the setting details.