Mitsubishi Electric MELSEC iQ-R Series User Manual page 131

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] Feed current 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 "[Cd.3] Positioning start No.", and turning ON the positioning start signal.
■4-axis module operation example
Positioning start signal
[Y10, Y11, Y12, Y13]
[Md.20] Feed current value
■Restrictions
• The error "Outside new current value range" (error code: 1A97H) will occur if the designated value is outside the setting
range when "degree" is set in "Unit setting".
• The error "Software stroke limit +" (error code: 1A94H) or "Software stroke limit -" (error code: 1A96H) will occur if the
designated value is outside the software stroke limit range.
• The current value cannot be changed during stop commands and while the M code ON signal is ON.
• The M code output function is made invalid.
• When using an absolute position system, "[Md.20] Feed current value" returns to the value of "[Md.21] Machine feed value"
at the start of communication with the servo amplifier after cycling the power or resetting the CPU module.
The new 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 home position return" and home
position return request flag is ON.
■Current value changing procedure
The following shows the procedure for changing the current value to a new value.
1.
Write the current value to "[Cd. 9] New current value".
2.
Write "9003" in "[Cd. 3] Positioning start No.".
3.
Turn ON the positioning start signal.
■Setting method
The following shows an example of a program and data setting to change the current value to a new value with the positioning
start signal. (The "[Md.20] Feed current value" value is changed to "5000.0 m" in the example shown.)
• Set the following data. (Set using the program referring to the start time chart.)
n: Axis No. - 1
Setting item
[Cd.3] Positioning start No.
[Cd.9] New current value
Refer to the following for information on the setting details.
Page 512 Control Data
• The following shows a start time chart.
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ON
OFF
50000 0
Setting Setting details
value
9003 Set the start No. "9003" for the new current value.
50000 Set the new "[Md.20] Feed current value".
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The current value is changed to the positioning address
designated by the buffer memory for current value change.
The above chart shows an example
when the positioning address is "0".
Buffer memory address
Axis 1 to axis 16
4300+100n
4306+100n
4307+100n
3 MAJOR POSITIONING CONTROL
3.2 Setting the Positioning Data
3
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