turck BL20-GW-CANOPEN, User Manual, Page: 52 / 95

BL20 - Gateway for CANopen
D301087 1211 - BL20 CANopen 4-22
ERR Off No errors in communication
between the BL20-CANopen
gateway and other CANopen nodes –
Red Faulty or interrupted
communication between BL20-
CANopen gateway and other
CANopen.
Possible causes:
– CAN-BusOff
– Heartbeat error
– Guarding error
– Transmit timeout
– Check that the fieldbus ends with a
termination resistor, if the BL20-
CANopen gateway is the last node
in the bus topology.
– Check the seating of the CANopen
bus connector (or the joints in the
case of direct wiring). All
connections must be correct and
properly seated.
– Check the CANopen cable for
possible damage, and for correct
connections.
– Check that the correct bit rate has
been set.
– Check that the NMT-master is still
functioning properly.
Bus OFF Fieldbus not operating Wait until the firmware download is
finished.
If the download is finished:
hardware error; replace the
gateway.
red NMT-slave state of the BL20-
CANopen gateway is "Stopped" –
orange NMT-slave state of the BL20-
CANopen gateway is "Pre-
Operational" –
green NMT-slave state of the BL20-
CANopen gateway is "Operational" –
ERR + BUS red,
blinking
alternately,
4 Hz Invalid Node-ID has been set Set the correct Node-ID with the
rotary hexadecimal
or decimal
encoding switches.
Table 4-11:
LED indicators LED Status Meaning Remedy