Mitsubishi MELSEC-Q Series User Manual page 219

12
COUNTER FUNCTION
(Example)
By setting the same value in "
"
Pr.17
controlled, checking the actual position at the same time.
The following shows the operation when controlling a rotation target which rotates once
with 3000 pulses.
(Conditions)
"
Pr.16
"
Md.3
Rotation target which rotates
once with 3000pulses
(2) Precautions
POINT
Positioning range upper limit value", the angle of the rotation target can be
Ring counter upper limit value"/"
Count value"/" Current feed value": 500
Md.1
Md.3 Count value at start
500 501
Current feed value at start
Md.1
500 501
(a) When the ring counter is selected, the supported counter functions are limited.
• Preset function: Supported
• Coincidence detection function: Not supported
When 0 is set to "
Pr.16
from 0 to 1073741823.
Ring counter upper limit value" and
Pr.16
Positioning range upper limit value": 3000,
Pr.17
(3000)
2998 2999
The value set to
Pr.16 Ring counter upper limit value/
stored neither to Md.3 Count value nor
Md.1 Current feed value. 0 is stored.
(3000)
2998 2999
Ring counter upper limit value", the counting range is
12.3 Ring Counter Function
0 1 2 498 499
Pr.17 Positioning range upper limit value is
0 1 2 498 499
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