Mitsubishi Electric MELSEC iQ-R Series User Manual page 25

Condition to execute the PID control
Whether PID control is executed or not depends on the following settings:
• 'Setting/operation mode command' (Y1)
• "PID continuation Flag" of "Control basic parameters" in "Application Setting"
• 'CH1 PID control forced stop command' (YC)
• "Stop mode setting" of "Control basic parameters" in "Application Setting"
The following table shows the relation between each setting and the execution of PID control.
Executed: , Not executed: 
'Setting/operation mode "PID continuation Flag" of
*2
command' (Y1) "Control basic parameters"
in "Application Setting"
Setting mode at power-ON Stop (0), Continue (1)
Operation mode (during Stop (0), Continue (1)
operation)
Setting mode (after Stop (0)
operation)
Continue (1)
*1 Here, this term is the generic term of two-position control, P control, PI control, PD control, and PID control.
*2 For each timing, refer to the following:
Page 157 Setting/operation mode status
Even though the above conditions have been satisfied, PID control is not executed when "Unused channel setting" of "Control
basic parameters" in "Application Setting" has been set to "Unused (1)."
The manipulated value (MV) and the manipulated value (MV) for output with another analog module of when 'CH1 PID control
forced stop command' (YC) is turned from OFF to ON are as follows:
Buffer memory area name
CH1 Manipulated value (MV)
CH1 Manipulated value (MV) for
output with another analog module
CH1 Manipulated value for heating
(MVh)
CH1 Manipulated value for heating
(MVh) for output with another analog
module
CH1 Manipulated value for cooling
(MVc)
CH1 Manipulated value for cooling
(MVc) for output with another analog
module
'CH1 PID control
forced stop
command' (YC)
OFF, ON
OFF
ON
OFF, ON
OFF
ON
Buffer memory address
403
407
403
407
408
409
"Stop mode setting" of
"Control basic parameters"
in "Application Setting"
Stop (0), Monitor (1), Alert (2)
Stop (0), Monitor (1), Alert (2)
Stop (0), Monitor (1), Alert (2)
Stop (0), Monitor (1), Alert (2)
Stop (0), Monitor (1), Alert (2)
Stop (0), Monitor (1), Alert (2)
Stored value
-50 (-5.0%)
0
-50 (-5.0%)
0
-50 (-5.0%)
0
Control status of
*1
PID control






Reference
Page 232 CH1 Manipulated value (MV)
Page 235 CH1 Manipulated value (MV)
for output with another analog module
Page 232 CH1 Manipulated value for
heating (MVh)
Page 236 CH1 Manipulated value for
heating (MVh) for output with another
analog module
Page 233 CH1 Manipulated value for
cooling (MVc)
Page 236 CH1 Manipulated value for
cooling (MVc) for output with another
analog module
1 FUNCTIONS
1.2 Control Method
1
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