List Of Alarm Codes - Mitsubishi Electric MELSEC iQ-F FX5 User Manual

List of alarm codes

If an alarm occurs during operation, the analog output module stores the alarm code into 'Latest alarm code' (Un\G2) of the
buffer memory. Turning on 'Alert output clear request'(Un\G70, b14) or 'Operating condition setting request'(Un\G70, b9)
clears the alarm code in 'Latest alarm code' (Un\G2).
The following table lists the alarm codes that may be stored.
: Indicates the number of the channel where the alarm has occurred. It represents one of numerical values 0 to 3, which
correspond to CH1 to CH4.
(CH1: 0, CH2: 1, CH3: 2, CH4: 3)
Alarm code Alarm name
080H Warning output alarm flag
(upper limit)
081H Warning output alarm flag
(lower limit)
0B0H Setting error of conditions for
operation other than Wave
output stopped
0B1H Wave output mode scaling
setting error
0B2H Wave output mode input value
shift amount setting error
0B3H Wave output mode rate control
setting error
0C0H CH Output-in-progress
range change enable alarm
2 FX5-4DA
276
2.10 Troubleshooting
Description and cause
A warning output alarm (upper limit) has occurred in
CH.
A warning output alarm (lower limit) has occurred in
CH.
In wave output status other than Wave output
stopped, 'Operating condition setting request'
(Un\G70, b9) was turned offonoff.
The scaling function is enabled when the wave
output function is in use.
When the wave output function is in use, the input
value shift amount is set to a value other than 0.
The rate function is enabled when the wave output
function is in use.
In CH, range switching was executed during
analog output.
Corrective action
After the CH Digital value returns to within the
setting range, turn offonoff 'Warning output
clear request' (Un\G70, b14). Both the bit
corresponding to the warning output upper or
lower flag and 'Warning output signal' (Un\G69,
b14) turn off.
Wait until the wave output of all channels stop.
Then, turn offonoff 'Operating condition
setting request' (Un\G70, b9).
If the wave output function is in use, retry to set
'CH Scaling enable/disable setting' to Disable
(1).
If the wave output function is in use, retry to set
'CH Input value shift' to 0.
If the wave output function is in use, retry to set
'CH Rate control enable/disable setting to
Disable (1).
When range switching is to be performed, turn
off 'Output enable/disable flag' (Un\G70, b1 to
b4) for the channel the range of which is to be
switched and turn offonoff 'Operating
condition setting request' (Un\G70, b9).