Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 159

CH1 AT bias
If the process value (PV) does not exceed the set value (SV) during auto tuning implementation, AT bias is set.
For details of the AT (auto tuning) function, refer to the following.
Page 40 AT (Auto Tuning) Bias Function
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
CH AT bias
CH AT bias (If using FX3 allocation mode)
■Setting range
*1
- span to + span (If span exceeds 32767, the span becomes -322768 to +322767.)
*1 During internal temperature inputs, input range span. During internal micro voltage inputs, scaling span. During external inputs, external
input span.
■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).
• If there is 1 digit (1) past the decimal point: Set a value (the value multiplied by 10) in increments of 0.1 ().
■Default value
The default value is 0.
CH1 Startup tuning setting
Sets stop/implement startup tuning.
For details of the startup tuning function, refer to the following.
Page 41 Startup Tuning Function
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
CH Startup tuning setting
CH Startup tuning setting (If using FX3 allocation mode)
■Setting range
• 0: Stop startup tuning
• 1: Implement startup tuning
■Default value
Set to 0 (Stop startup tuning).
Precautions
Auto tuning is implemented if control is started when both the 'auto tuning command' (Un\G399, b4) and 'startup tuning
implementation command' (Un\G548) status is "1".
CH1 CH2
546 746
74 114
CH1 CH2
548 748
87 127
Appendix 4 Buffer Memory Areas
CH3 CH4
946 1146
154 194
CH3 CH4
948 1148
167 207
APPX
157
A