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Chapter 9 Major Positioning Control
[2] Changing to a new current value using the current value changing
start No. (No. 9003)
In "current value changing" ("[Cd.3] Positioning start No." = 9003), "[Md.20]
Current feed value" is changed to the address set in "[Cd.9] New current value".
Operation chart
The current value is changed by setting the new current value in the current value
changing buffer memory "[Cd.9] New current value", setting "9003" in the "[Cd.3]
Positioning start No.", and turning ON the positioning start signal.
[QD77MS4 operation example]
Positioning start signal
Md.20 Current feed value
50000
0
OFF
ON
Current value changes to the
positioning address designated by
the current value changing buffer memory.
The above chart shows an example
when the positioning address is "0".
[Y10, Y11, Y12, Y13]
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
Restrictions
(1) The error "Outside new current value range" (error code: 514) will occur if the
designated value is outside the setting range when "degree" is set in "Unit
setting".
(2) The error "Software stroke limit +" (error code: 507) or "Software stroke limit
-"
(error code: 508) will occur if the designated value is outside the software
stroke limit range.
(3) The current value cannot be changed during stop commands and while the M
code ON signal is ON.
(4) The M code output function is made invalid.
POINTS
The current value can be changed using the current value changing start No. (No. 9003) if "0:
Positioning control is not executed" is set in "[Pr.55] Operation setting for incompletion of OPR" and
OPR request flag is ON.
Current value changing procedure
The following shows the procedure for changing the current value to a new value.
Turn ON the positioning start signal.
Write "9003" in " Cd. 3 Positioning start No."
Write the current value to " Cd. 9 New current value"
1)
2)
3)