Mitsubishi Electric MELSEC iQ-R Series User Manual page 117

External power supply READY flag
■Device number
The following shows the device number of this input signal.
Signal name
External power supply READY flag
■When the external power supply is off, or when 200ms has not yet elapsed after the power-on
'External power supply READY flag' (X7) remains off and the D/A conversion is not performed.
In this case, the analog output value is 0V/0mA.
■When the external power supply is turned off and on
After 200ms, 'External power supply READY flag' (X7) turns on. The D/A conversion is started on the channels where the D/A
conversion is enabled.
CPU module power supply
In normal mode:
Module READY (X0)
In offset/gain setting mode:
Offset/gain setting mode status flag (XA)
External power supply
External power supply READY flag (X7)
■When the external power supply is turned on and off
'External power supply READY flag' (X7) turns off and the D/A conversion stops.
In this case, the analog output value is 0V/0mA.
When the external power supply is turned off and on again, 'External power supply READY flag' (X7) turns on after 200ms as
described above and the D/A conversion is restarted.
■Precautions
• Use the external power supply that satisfies the specifications described in the performance specifications. Otherwise,
'External power supply READY flag' (X7) does not turn on. For the performance specifications, refer to the following.
 MELSEC iQ-R Digital-Analog Converter Module User's Manual (Startup)
CH1 CH2 CH3
X7
ON
ON
ON
200ms
ON
D/A conversion is
not performed.
CH4 CH5 CH6
OFF
OFF
D/A conversion is
performed.
CH7 CH8
APPENDICES
115
Appendix 2 I/O Signals
A