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E-65
9 Troubleshooting
9.4 Error Status Check
A
Common Items
B
FX
3U
-4AD
FX
3UC
-4AD
C
FX
3U
-4AD-ADP
D
FX
3G
-2AD-BD
E
FX
3U
-4DA
F
FX
3U
-4DA-ADP
G
FX
3G
-1DA-BD
H
FX
3U
-3A-ADP
I
FX
3U
-4AD-PT
-ADP
J
FX
3U
-4AD-PTW
-ADP
FX
3G
/FX
3U
/FX
3UC
PLC User's Manual - Analog Control Edition
FX3U-4DA (4-channel Analog Output)
9.4 Error Status Check
When an error occurs in FX3U-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)
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 -