Mitsubishi Electric MELSEC iQ-R Series User Manual page 311

CH1 Feed forward value tuning selection
Set whether to execute the tuning of the feed forward value automatically or manually when the disturbance suppression
function operates for the first time or when the set value (SV) or PID constants are changed.
When the control response after the tuning result is not satisfactory, turn from OFF to ON Feed forward value tuning selection
to generate a disturbance and execute the tuning again.
'CH1 Feed forward value tuning
selection' (Un\G561)
CH1 Feed forward value tuning
status (Un\G416, b1)
CH1 Feed forward value change
flag (Un\G416, b0)
Set 'CH1 Disturbance judgment position' (Un\G557) and set 'CH1 Feed forward value tuning selection' (Un\G561) to
Automatic setting (1).
When the temperature process value (PV) is out of the disturbance judgment position, the function automatically sets the feed
forward value.
After the automatic setting, CH1 Feed forward value change flag (Un\G416, b0) turns ON.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Feed forward value tuning selection
CH Feed forward value tuning selection (in the Q compatible mode)
■Setting range
• 0: No automatic setting
• 1: Automatic setting
When No automatic setting (0) is set, manually set 'CH1 Feed forward value' (Un\G560).
■Default value
The default value is No automatic setting (0).
ON
OFF
Disturbance
detection
OFF
OFF
Executed in a program
Executed by the temperature control module
ON
ON
CH1 CH2
561 761
1048 1064
Appendix 3 Buffer Memory Areas
CH3 CH4
961 1161
1080 1096
APPX
309
A