Mitsubishi Electric MELSEC iQ-R Series User Manual page 262

CH1 Stop mode setting
Set the mode to be activated when the PID control stops.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory area name
CH Stop mode setting
CH Stop mode setting (in the Q compatible mode)
■Setting range and operation of the temperature control module
The following table lists the relation between them.
: Executed, : Not executed
Setting mode
Stop
Monitor
Alert
*1 The temperature control module checks whether the input temperature is within the temperature measuring range of the input range.
*2 The temperature control module judges the occurrence of Alert 1 to Alert 4 and rate alarms.
However, an operation of the temperature control module differs depending on the following settings:
• 'CH1 Unused channel setting' (Un\G502) ( Page 259 CH1 Unused channel setting)
• 'Setting/operation mode command' (Y1) ( Page 164 Setting/operation mode command)
• 'PID continuation flag' (Un\G306) ( Page 226 PID continuation flag)
• 'CH1 PID control forced stop command' (YC) ( Page 166 PID control forced stop command)
• 'CH1 HOLD/CLEAR setting' (Un\G500) ( Page 253 CH1 HOLD/CLEAR setting)
For details, refer to the following:
• PID control ( Page 23 Condition to execute the PID control)
• Temperature judgment ( Page 230 CH1 Alert definition)
• Alert judgment ( Page 79 Condition for alert judgment)
■Default value
The default value is Monitor (1).
The default value is Monitor (1).
Thus, sensor input disconnections are detected in channels to which no temperature sensors have been
connected, and the ALM LED flashes.
When 'CH1 Unused channel setting' (Un\G502) has been set to Unused (1), control in CH1 is not executed.
For the channels to which no temperature sensors have been connected, set 'CH1 Unused channel setting'
(Un\G502) to Unused (1).
APPX
260
Appendix 3 Buffer Memory Areas
Setting value Operation
PID control

0

1
2 
CH1 CH2
503 703
33 65
Temperature
*1
judgment



CH3 CH4
903 1103
97 129
*2
Alert judgment


