Mitsubishi Electronics MELSEC-F Manuel D’Utilisation
E-65
9 Troubleshooting
9.4 Error Status Check
A
Comm
on I
te
te
ms
B
FX
3U
-4AD
FX
3UC
-4
A
D
C
FX
3U
-4A
D
D
-A
D
P
D
FX
3G
-2A
D
D
-BD
E
FX
3U
-4DA
F
FX
3U
-4D
A
A
-AD
P
P
G
FX
3G
-1D
A
A
-BD
H
FX
3U
-3
A-
ADP
I
FX
3U
-4
A
D
-P
T
-
A
D
P
J
FX
3U
-4A
D
D
-P
TW
-
A
A
D
P
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX
3U
-4DA (4-channel Analog Output)
9.4
Error Status Check
When an error occurs in FX
3U
-4DA, the bit appropriate to the error is turned on in the error status (BFM #29).
Take measures, referring to the following table.
1. Error detection (b0)
1) Description of error
If any of b1 is turned on, this bit (b11) will turn on.
2. O/G error (b1)
1) Description of error
The bit is turned on when the offset or gain data (BFM #10 to #17) in the EEPROM has a setting error.
2) Remedy
Check the output mode (BFM #0) and the offset and gain data (BFM #10 to #17).
3. Power supply error (b2)
1) Description of error
24 V power is not correctly supplied.
2) Remedy
Check the wiring condition or the supply voltage.
4. Hardware error (b3)
1) Description of error
FX
3U
-4DA may be defective.
2) Remedy
Please contact the nearest Mitsubishi Electric distributor office.
5. Error when setting the function for output upon PLC stop (b5)
1) Description of error
The bit will turn on when the functions setting value for setting output upon PLC stop is not correctly set.
2) Remedy
Check the output mode (BFM #0) and the setting value of output data upon PLC stop (BFM #32 to #35).
Bit No.
Items
b0
Error detection
b1
O/G error
b2
Power supply error
b3
Hardware error
b4
-
b5
Error in setting of function for setting output upon PLC stop
b6
Upper/lower limit function setting error
b7
Error in corrective function setting by load resistance
(Valid only in voltage output mode)
(Valid only in voltage output mode)
b8
Table output function setting error
b9
Status automatic transfer setting error
b10
Over-scale
b11
Disconnection detection (Valid only in current output mode)
b12
Setting data change prohibited
b13 to b15
-