Rate Control Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.10

Rate Control Function

Normal
This function prevents the sudden change of the analog output value by limiting the increment/decrement of the analog output
value per conversion cycle.
Operation
When the setting value of 'CH1 Digital value' (Un\G460) is changed, if the difference between the previously set digital value
and the newly set digital value is larger than the digital limit values below, the rate control function will be executed.
• 'CH1 Increase digital limit value' (Un\G514)
• 'CH1 Decrease digital limit value' (Un\G516)
The analog output value gradually increases or decreases to the changed digital value. The analog output value is increased
or decreased per conversion cycle (10s  Number of D/A conversion enabled channels). The increment and decrement are
as follows:
• Increment: 'CH1 Increase digital limit value' (Un\G514)  Number of D/A conversion enabled channels
• Decrement: 'CH1 Decrease digital limit value' (Un\G516)  Number of D/A conversion enabled channels
■Start timing of rate control
Rate control starts when 'CH1 Output enable/disable flag' (Y1) has turned on. Rate control is not executed if 'CH1 Output
enable/disable flag' (Y1) is off.
Setting method
1.
Set "Rate control enable/disable setting" to "Enable".
[Navigation window]  [Parameter]  [Module Information]  Module model name  [Application setting]  [Rate
control function]
2.
Set values for "Increase digital limit value" and "Decrease digital limit value".
Item
Increase digital limit value
Decrease digital limit value
Setting range
0 to 64000
1 FUNCTIONS
1.10 Rate Control Function
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