Axis Monitor Data - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

Axis monitor data

[Md.20] Current feed value
This area stores the currently commanded address or the address of the current position. The stored value is different from
the actual motor position during operation. Multiplying the stored value by the following converted value enables the
monitoring of the converted value in each unit.
Unit
μm
inch
degree
pulse
• When the unit is degree, the address is a ring address of values between 0 and 359.99999°.
• The update cycle of this area is 0.88 ms.
• When the machine OPR is completed, the OP address is stored.
• When the current value is changed with the current value change function, the changed value is stored.
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
[Md.20] Current feed value
[Md.21] Machine feed value
This area stores the address of the current position according to the machine coordinate (coordinate specified with the
machine). The stored value is different from the actual motor position during operation. Multiplying the stored value by the
following converted value enables the monitoring of the converted value in each unit.
Unit
μm
inch
degree
pulse
• The update cycle of this area is 0.88 ms.
• Under the speed control, the machine feed value is constantly updated regardless of the parameter setting.
• The value is not cleared to 0 at the beginning of fixed-feed.
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
[Md.21] Machine feed value
Converted value
-1
×10
-5
×10
-5
×10
×1
Axis 1
800
801
Converted value
-1
×10
-5
×10
-5
×10
×1
Axis 1
802
803
17 DATA USED FOR POSITIONING CONTROL
Axis 2
900
901
Axis 2
902
903
17.7 Monitor Data
17
441