Specifications

36
7-3-3. Diagnostics with the LED light on the AHC ADAPTER circuit board
LED status Description Cause Troubleshooting
Lit
AHC ADAPTER is operating
properly.
Normal
Unlit
AHC ADAPTER is not
energized.
Power is not supplied.
Check the voltage at the M-NET terminal
block.
AHC ADAPTER is in
failure.
Replace the AHC ADAPTER.
Blinking AHC ADAPTER is in error. AHC is malfunctioning.
Check the error code that is displayed on the
controller, and take appropriate actions.