Mitsubishi Electric MELSEC iQ-R Series User Manual page 23

Precautions
Common
• The output range cannot be changed for a channel where D/A conversion is disabled. Change the output range after
setting "D/A conversion enable/disable setting" to "D/A conversion enable" and turning off 'CH1 Output enable/disable flag'
(Y1).
Normal
• To prevent a sudden change of the analog output, Under-output range change denial alarm (alarm code: 0C0H) occurs
when the range switching is executed in the channel during analog output with the D/A conversion and output enabled. In
this case, range switching is not executed. To switch the range, turn off 'CH1 Output enable/disable flag' (Y1), and turn on
and off 'Operating condition setting request' (Y9). After switching the range, check 'CH1 Range setting monitor' (Un\G430)
and the digital value, and then turn on 'CH1 Output enable/disable flag' (Y1) to start the analog output.
High speed
• A range change denial error during analog output in high-speed output mode (error code: 192H) occurs when the range
switching is executed in the channel during analog output with the D/A conversion and output enabled. Range switching is
not executed. If an error occurs in any of the channels, all channels are set to D/A conversion disable, and 0V/0mA is
output in analog. Turn off 'CH Output enable/disable flag' (Y1 to Y4) in all channels, and turn on and off 'Operating
condition setting request' (Y9).
1 FUNCTIONS
1.2 Range Switching Function
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