Mitsubishi Electric MELSEC iQ-F FX5 User Manual page 137

CH1 Set value (SV) setting
Sets the PID control and alert process set values.
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
CH Set value (SV) setting
CH Set value (SV) setting (If using FX3 allocation mode)
■Setting range
The range is determined by the values set in 'CH1 Upper limit setting limiter' (Un\G511) and 'CH1 Lower limit setting limiter'
(Un\G512). (Page 147 CH1 Upper limit setting limiter, Page 147 CH1 Lower limit setting limiter)
When a value out of the setting range is set in this area, an out of setting range error (error code: 1950H) occurs, and the
status is as described below.
• 'Error flag' (Un\G398, b2) turns ON.
• An error code is stored in 'Latest error code' (Un\G0).
■Setting unit
The value to be set differs depending on the value stored in 'CH1 Decimal point position' (Un\G400). (Page 128 CH1
Decimal point position)
• 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 Proportional band (P) setting
Set the proportional band (P) to execute the standard PID control.
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
CH Proportional band (P) setting
CH Proportional band (P) setting (If using FX3 allocation mode)
■Setting range
*1
0 to 10000 (span 0.0 to 1000.0%)
*1 During internal temperature inputs, input range span. During internal micro voltage inputs, scaling span. During external inputs, external
input span.
■Two-position control
Set the proportional band (P) to 0.
For details on the two-position control, refer to the following.
Page 26 Control Method
■Default value
The default value is 30 (3.0%).
CH1 CH2
430 630
48 88
CH1 CH2
431 631
58 98
Appendix 4 Buffer Memory Areas
CH3 CH4
830 1030
128 168
CH3 CH4
831 1031
138 178
APPX
135
A