Checking The Current Value - Mitsubishi MELSEC-Q Series User Manual

9
POSITIONING CONTROL
9.1.4

Checking the current value

Values representing the current value
In the QD72P3C3, the following address is used as a value representing the position.
This address (current feed value) is stored in the monitor data area and is used in
monitoring such as current value display.
Md. 1 Current feed value
Current value when using the ring counter
When the counter format is set to "ring counter" in intelligent function module switch
setting, the current value is repeatedly updated between 0 and "
upper limit value -1" during speed control (when "
control" is set to "1: Update") or JOG operation.
Md.1 Current feed value
Subtraction
•Value stored in "
Current feed
•The value is based on an address established with "machine OPR control". However,
value
the address can be changed by current value change.
•Update timing: 2.5ms
V
OP
0 1
to
Figure 9.3 Current feed value
Figure 9.4 Current feed value when using the ring counter
Current feed value"
Md.1
Current value is changed to
20000 by current value
change.
Address after current
value change is stored.
10000 20000
Current feed value during speed
Pr.3
Pr.17 Positioning range upper
limit value
Addition
0
9.1 Outline of Positioning Control
9.1.4 Checking the current value
t
Positioning range
Pr.17
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