Control Unit "Degree" Handling - Mitsubishi A1SD75M3 User Manual

9 MAIN POSITIONING CONTROL

9.1.5 Control unit "degree" handling

When the control unit is set to "degree", the following items differ from when other
control units are set.
(1) Current feed value and machine feed value addresses
When the control method is the absolute system, " Md.29 Current feed value"
becomes the ring address of 0 to 359.99999 ° .
(If the control method is the absolute system, the address of " Md.30 Machine
feed value" does not become the ring address.)
0°
(2) Positioning control method when the control unit is set to "degree"
(a) Absolute system
1) When the software stroke limit is invalid
Positioning is carried out in the nearest direction to the designated
address, using the current value as a reference.
(This is called "shortcut control".)
Example
1) Positioning is carried out in a clockwise direction when the current value is moved from 315° to 45°.
2) Positioning is carried out in a counterclockwise direction when the current value is moved from 45° to 315°.
Moved from 315° to 45°
315°
POINT
To make the software stroke limit invalid, set to
[Software stroke limit upper limit value = Software stroke limit lower limit value].
359.99999° 359.99999°
0° 0°
45°
9 - 16
MELSEC-A
Moved from 45° to 315°
315° 45°