Mitsubishi Electric MELSEC iQ-R Series User Manual page 159

Setting/operation mode status
This signal is ON in the operation mode and OFF in the setting mode.
'Setting/operation mode command'
(Y1)
'Setting/operation mode status'
(X1)
Mode transition
■Precautions during the mode shift processing
The mode shift processing means the following timings:
• From when 'Setting/operation mode command' (Y1) is turned from OFF to ON until when 'Setting/operation mode status'
(X1) turns ON ( in the figure above)
• From when 'Setting/operation mode command' (Y1) is turned from ON to OFF until when 'Setting/operation mode status'
(X1) turns OFF ( in the figure above)
During the mode shift processing, do not change the set values. If the set values are changed during the mode shift
processing, operations of the module cannot be guaranteed. Use 'Setting/operation mode status' (X1) as an interlock
condition for 'Setting/operation mode command' (Y1) when changing the set values.
The conditions to determine whether to execute the temperature judgment, PID control, and alert judgment to
be executed by the temperature control module differ among the following timings.
• Setting mode at power-ON
• Operation mode (during operation)
• Setting mode (after operation)
For details on the temperature judgment, PID control, and alert judgment, refer to the following:
• Temperature judgment ( Page 230 CH1 Alert definition)
• PID control ( Page 23 Condition to execute the PID control)
• Alert judgment ( Page 79 Condition for alert judgment)
■Device No.
The following shows the device number of this input signal.
Signal name
Setting/operation mode status
ON
OFF
ON
OFF
Setting mode at
power-ON
During mode shift processing
Executed by the temperature control module
CH1 to CH4
X1
Operation mode Setting mode
(after operation)
(during operation)
During mode shift processing
APPX
157
Appendix 2 I/O Signal
A