Beckhoff CX20 2 Series, Руководство пользователя

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Error handling and diagnostics
CX20x2 57 Version: 1.7
9 Error handling and diagnostics
9.1 Basic CPU module
9.1.1 LEDs on the basic CPU module
Display LED Meaning
PWR Power supply. The Power LED comes on when the device is connected
to a live power supply unit (green).
TC TwinCAT status LED:
TwinCAT is in Run mode (green).
TwinCAT is in Stop mode (red).
TwinCAT is in Config mode (blue).
HDD Read/Write CFast card (red). Indicates access to the CFast card.
FB1 Status LED for optional interface (the function is described in the
documentation for the respective optional interface).
FB2 Status LED for optional interface (the function is described in the
documentation for the respective optional interface).
9.1.2 Power supply terminal LEDs in K-bus mode
The power supply unit checks the connected Bus Terminals for errors. The red LED "K-bus ERR" is off if no
error is present. The red LED "K-bus ERR" flashes if Bus Terminal errors are present.
Display LED Meaning
Us 24 V Power supply for basic CPU module. The LED
lights green if the power supply is correct.
Up 24V Power supply for terminal bus. The LED lights
green if the power supply is correct.
K-BUS RUN Diagnostic K-bus. The green LED lights up in order
to indicate fault-free operation. "Error-free" means
that the communication with the fieldbus system is
also running.
K-BUS ERR Diagnostic K-bus. The red LED flashes to indicate
an error. The red LED blinks with two different
frequencies.
The frequency and number of the flashes can be used to determine the error code and the error argument.
An error is indicated by the "K-bus ERR" LED in a particular order.
Table 30: K-bus ERR LED, fault indication sequence through the LED.
Order Meaning
Fast blinking Starting the sequence
First slow sequence Error code
No display Pause, the LED is off
Second slow sequence Error code argument
Count how often the red LED K-bus ERR flashes, in order to determine the error code and the error
argument. In the error argument the number of pulses shows the position of the last Bus Terminal before the
error. Passive Bus Terminals, such as a power feed terminal, are not included in the count.