Control Unit "Degree" Handling - Mitsubishi Electric RD77MS2 User Manual

Control unit "degree" handling

When the control unit is set to "degree", the following items differ from when other control units are set.
Current feed value and machine feed value addresses
The address of "[Md.20] Current feed value" becomes a ring address from 0 to 359.99999. The address of "[Md.21] Machine
feed value" will become a cumulative value. (They will not have a ring structure for values between 0 and 359.99999.)
However, "[Md.21] Machine feed value" is restored within the range of 0 to 359.99999 at the communication start with servo
amplifier after the power supply ON or CPU module reset.
359.99999 359.99999
°
0 0 0
° ° °
Software stroke limit valid/invalid setting
With the control unit set to "degree", the software stroke limit upper and lower limit values are 0 to 359.99999.
■Setting to validate software stroke limit
To validate the software stroke limit, set the software stroke limit lower limit value and the upper limit value in a clockwise
direction.
0 °
315.00000
°
Section A
Section B
• To set the movement range A, set as follows.
Software stroke limit lower limit value
Software stroke limit upper limit value
• To set the movement range B, set as follows.
Software stroke limit lower limit value
Software stroke limit upper limit value
■Setting to invalidate software stroke limit
To invalidate the software stroke limit, set the software stroke limit lower limit value equal to the software stroke limit upper
limit value.
The control can be carried out irrespective of the setting of the software stroke limit.
• When the upper/lower limit value of the axis which set the software stroke limit as valid are changed,
perform the machine home position return after that.
• When the software stroke limit is set as valid in the incremental data system, perform the machine home
position return after power supply on.
°
Clockwise direction
90.00000
°
315.00000
90.00000
90.00000
315.00000
3 MAJOR POSITIONING CONTROL
3.1 Outline of Major Positioning Controls
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