Table 34: H2 = Board status, Yellow
LED status
Description
OFF
Option board not activated.
ON
Option board in initialization state waiting for activation command from the AC drive.
Single blink
At least one of the error counters of the CAN controller has reached or exceeded the warning level (too
many error frames).
Blinking fast (once per
s)
Option board is activated and in RUN state.
Option board is ready for external communication
Blinking slow (once per
5 s)
Option board is activated and in FAULT state.
Internal fault on option board.
Table 35: H1 = Bus status, Green
LED status
Description
OFF
Fieldbus module is waiting for parameters from the AC drive.
No external communication.
ON
Fieldbus module is activated.
Parameters received and module activated.
Module is waiting for messages from the bus.
Blinking very fast for 5 s (once per 0.2 s)
Fieldbus module has received a wink request.
Blinking fast (once per s)
Module is activated and receiving messages from the bus.
Blinking slow (once per 5 s)
Module is in FAULT state.
No messages from Net within the watchdog time.
Bus broken, cable loose.
AN338644703080en-0002 / DPD02156
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Troubleshooting
VACON® RS485 and CAN Bus Option Boards
Installation Guide
Summary of Contents for VACON OPTC2
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