Displaying common faults
(Original Document)
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Description
The following table shows the operation of the display lamps for the TBX distributed I/O modules.
Lamps
Lit
Flashing
Off
RUN
(green)
Device operational.
-
Device switched off
DEF (1)
(red)
Internal fault in the module or lack of power supply to base unit no. 2 or insufficient power supply voltage.
Fipio link fault.
No fault.
I/O
(red)
External fault.
The type of fault depends on the distributed I/O module chosen:
-
No external fault.
Key:
(1)
ERR on the discrete IP65 TBXs.
NOTE: when a TBX is being connected to the Fipio, if all 4 lamps RUN, DEF (ERR on the discrete IP65 TBXs), COM and I/O flash simultaneously, this indicates that the connection point address defined for this TBX is already being used by another TBX, connected to the bus.
In this case, modify the connection point address code.
Remedial actions
The following table describes the remedial actions to be taken when faults are indicated.
Lamps
Lit
Flashing
Off
RUN
(green)
-
-
  • check the fuse,
  • check the terminal block connection,
  • check the module supply voltage.
DEF (1)
(red)
  • check the connection of the TBX BLP 01 (IP20) or TBX BLP 10 (IP65) connector.
  • check configuration of the module in the software workshop.
  • check to see whether the voltage is ≥ 19.4 V. If correct:
    • modular TBX: change the communication module or the base unit,
    • monobloc TBX: change the module,
  • check the power supply of base unit no. 2.
-
I/O
(red)
The type of fault depends on the distributed I/O module chosen:
-
-
Key:
(1)
ERR on the discrete IP65 TBXs.