VLT
®
AutomationDrive EtherNet/IP
MG.90.J1.02 – VLT is a registered Danfoss trademark
45
Troubleshooting
Step-by-step troubleshooting
Check: LED’s
The option contains two LED’s to indicate the state of the device and the network.
During normal operation the MS and at least one NS LED will show a constant green light.
State
LED
Description
MS: Module Status
Standby
Green: █ █ █ █ █ █
Flashing green
The device needs commissioning
Device
operational
Green:
█████████████
Solid green
The device is operational
Major
recoverable
fault
Red:
█ █ █ █ █ █ █
Flashing red
The device has detected a recoverable
fault (MAR)
Major
unrecoverable
fault
Red: ██████████████
Steady red
The device has detected a un-recoverable
fault (MAU)
Self test
Red:
█ █ █ █ █ █ █
Green: █ █ █ █ █ █
Flashing red/green The EIP option is in self-test mode.
NS1 + NS2: Network status (one per port)
No connections Green:
█ █ █ █ █ █
Flashing green
There are no established any CIP
connections to the device
Connected
Green:
████████████
Steady green
There is established (at least) one CIP
connection to the device
Connection
time-out
Red:
█ █ █ █ █ █
Flashing red
One or more CIP connections has timed-
out
Duplicate IP
Red:
█████████████
Steady red
The IP-address assigned to the device is
already in use
Self test
Red:
█ █ █ █ █ █ █
Green: █ █ █ █ █ █
Flashing red/green The EIP option is in self-test mode.