AV6A 18
Other Parameters
Contact Nidec Avtron for additional parameters, diagnostic registers,
cam and programmable limit switch functionality and other
advanced features.
ETHERNET/IP TROUBLESHOOTING
Viewing on oscilliscope: for EtherNet/IP the transmit and receive
signal pairs should change state rapidly as the controller transmits
messages to the encoder and the encoder replies. Transmission
rates vary, but these messages can be extremely short and typically
require scope triggering to spot them.
A simple one-to-one connection can be made to an ordinary PC.
Connect the PC to the encoder using standard (not cross-patch)
cable. Power the encoder using the power connector. The encoder
Link 1 should illuminate green. Use the Ping command, Run “ping
xxx.xxx.xxx.xxx” where xxx represents the IP address that has
been assigned to thee encoder. The encoder should reply, and the
communication “ping” time will be reported by the PC. The Active 1
LED should flash briefly during the communication.
A software “snoop” or “sniffer” program can also be used to packet-
analyze the communication.
If the position is changing as the encoder moves, but is reported
incorrectly, the Preset parameter may have been loaded into the
encoder at the wrong physical position of the machine. Drive the
machine to the home/preset position, and cycle power to see if the
position is correctly reloaded.
EtherNet/IP Diagnostic LEDs
LED
Status
Meaning
Stat 1
Stat 2
Link 1
Green
Green
Green
Input connected to Ethernet, power OK,
node address ok, no Ethernet errors,
encoder operational, EtherNet/IP
connection established
Link 2
Green
Output connected to next encoder
Stat 1
Flashing
Green 1Hz
Encoder in standby, not configured
Flashing
Green 4Hz
Encoder IP address not set
Flashing
Red
Configuration error
Red
Major internal fault
Alternating
Red/Green
Power-up testing
Stat 2
Flashing
Green
IP address established, but no EtherNet/IP
connection established
Flashing
Yellow
Connection (message) timeout
Yellow
Duplicate IP address on bus
Alternating
Red/Green
Power-up testing
Active 1 Flashing
Yellow
Active inbound communication
Active 2 Flashing
Yellow
Active communication to next encoder