Mitsubishi Electric MELSEC iQ-R Series User Manual page 308

CH1 Disturbance judgment position
Set the deviation to detect disturbance.
The disturbance suppression function starts when the deviation (difference between the set value (SV) and process value
(PV)) exceeds the set value.
Ex.
When the disturbance judgment position is -5
Set value (SV)
Disturbance judgment
position (-5 )
(1) The disturbance suppression function does not operate because the deviation is less than -5.
(2) The disturbance suppression function operates because the deviation is -5 or larger.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Disturbance judgment position
CH Disturbance judgment position (in the Q compatible mode)
■Setting range
The setting range is (-(Full scale of the input range)) to the full scale of the input range. (())
The setting range depends on the setting of 'CH1 Input range' (Un\G51).
The disturbance suppression function does not operate when 0 is set.
■Setting unit
The value to be set differs depending on the value stored in 'CH1 Decimal point position' (Un\G400).
• No decimal point (0): Set a value in increments of 1 ( or digit).
• First decimal place (1): Set a value (the value multiplied by 10) in increments of 0.1 ().
• When 'Automatic setting at input range change' (Un\G302) has been set to Enable (1), changing the value
in 'CH1 Input range' (Un\G501) sets 0 in this area.
• When 'Automatic setting at input range change' (Un\G302) has been set to Disable (0), the value in 'CH1
Disturbance judgment position' (Un\G557) may be out of the setting range.
■Default value
The default value is 0.
APPX
306
Appendix 3 Buffer Memory Areas
Process value
(PV)
(2)
(1)
CH1
557
1044
CH2 CH3
757 957
1060 1076
CH4
1157
1092