Checking The Current Value - Mitsubishi Electric MELSEC iQ-R-RD75P4 User Manual

Checking the current value

Values indicating the current values
In the RD75, the following two types of address are used as values to indicate the position.
These addresses (Current feed value and Machine feed value) are stored in the monitor data area, and used for monitoring
the current value display.
Item
Current feed value
Machine feed value
Current feed value and Machine feed value are used for monitoring the current value display.
OP
Md.20 Current feed value
Md.21 Machine feed value
Restrictions
When the stored Current feed value is used for the control, an error of 0.88ms will occur in the update timing of the current
value. When the stored Machine feed value is used for the control, an error of 0.88ms will occur in the update timing of the
current value.
3 MAJOR POSITIONING CONTROL
72
3.1 Overview of the Major Positioning Controls
Description
• The value stored in [Md.20] Current feed value.
• This value has an address established with Machine OPR as a reference. However, the address can be changed by
changing the current value.
• This value is updated every 0.88ms.
• The value stored in [Md.21] Machine feed value.
• This value always has an address established with Machine OPR as a reference. The address cannot be changed even if
the current value is changed to a new value.
• This value is updated every 0.88ms.
V
0 1 to
0
1 to
The current value has been changed
to 20000 with the current value change.
The address after the current value
change is stored.
10000 20000
10000
The address does not change even
after the current value has been changed.
t