coval LEMCOM Series - Network Status (NS) Indicator Light

LEMCOM CANopen® – User manual Meaning of indicator lights
COVAL – LMCOP-EN-A-1155UM0068 14/49
LED state
Meaning
1 flash
Product is “STOPPED”.
Slow flashing
Product is “PRE-OPERATIONAL”.
ON
Product is “OPERATIONAL”.
Table 4 – CAN-RUN indicator light
The CAN-ERR LED indicates the status of the LEMCOM’s physical layer as well as errors due to
missing messages.
LED state
Meaning
OFF
No error, operation OK
1 flash
At least one error counter of the CAN controller has reached the warning threshold
(96).
2 flashes
A “Node Guarding” or “Heartbeat” monitoring fault has been detected.
ON
CAN controller is in “BUS OFF” state.
Table 5 – CAN-ERR indicator light
4.3 Network Status (NS) indicator light
The NS LED indicates the status of the communication on the local bus (master/secondary
communication).
Red LED
Green
LED
Meaning
OFF
OFF
No power / not assigned:
Module is switched off or no address has been assigned to it on the local bus.
OFF
ON
Connected:
Module has an address on the local bus and connection with the LEMCOM master
module has been established.
Flashing
OFF
Timeout:
Module has an address on the local bus, but connection with the LEMCOM master
module has failed (check the COVAL bus connection).
Flashing
Flashing
Self-test: Testing sequence at startup
Table 6 – Local bus indicator light (NS)