Mitsubishi Electric MELSEC iQ-R Series User Manual page 121

Disconnection detection signal
Disconnection detection signal (XD) turns on when a disconnection is detected in a channel while the output range is 4 to
20mA.
'Disconnection detection signal' (XD) turns off by turning on and off 'Error clear request' (YF) or 'Operating condition setting
request' (Y9) after the cause of the disconnection is eliminated.
State of disconnection
Disconnection detection signal
(XD)
Error clear request (YF)
or Operating condition
setting request (Y9)
■Device number
The following shows the device number of this input signal.
Signal name
Disconnection detection signal
Alert output signal
Alert output signal turns on when the value in 'CH1 Digital value' (Un\G460) is larger than the value in 'CH1 Alert output upper
limit value' (Un\G510) or is smaller than the value in 'CH1 Alert output lower limit value' (Un\G512) while the D/A conversion is
enabled.
By turning on and off 'Alert output clear request' (YE) or turning off and on 'Operating condition setting request' (Y9) after the
cause of the warning is eliminated, 'Alert output signal' (XE) turns off and 'Latest alarm code (Un\G2)' is cleared.
Latest error code
Alert output signal
(XE)
Alert output clear request (YE)
or Operating condition
setting request (Y9)
■Device number
The following shows the device number of this input signal.
Signal name
Alert output signal
Controlled by the D/A converter module
Controlled by the program
Disconnection
Disconnection detection
not detected
ON
CH1 CH2
XD
Controlled by the D/A converter module
Controlled by the program
0 Warning
ON
CH1 CH2
XE
Disconnection
not detected
OFF
ON
OFF
CH3 CH4 CH5
0
OFF
ON
OFF
CH3 CH4 CH5
CH6 CH7 CH8
CH6 CH7 CH8
APPENDICES
Appendix 2 I/O Signals
A
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