ABB NETA-21, User Manual

Page: 186 / 196

186 Diagnostics and troubleshooting
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LED indications of the NETA-21
Name Color Function
USB Off No USB mass storage devices attached
Green USB mass storage device attached and mounted.
Blinking green Device attached, initialization in progress
Yellow Device can be removed.
Red Unidentified error when settings are imported from an USB memory
device.
Blinking red Initialization failed.
Unsupported file system on a USB stick.
Only FAT file systems with 8.3 character filenames are supported.
Basically, NTFS-formatted USB sticks and external hard disks are not
supported.
EXT Off No NEXA-21 connected
Green NEXA-21 found and initialized
Blinking green NEXA-21 support is being initialized (when the NETA-21 boots up)
Red NEXA-21 malfunctions
Blinking red NEXA-21 not supported
SD Off No SD/SDHC card
Green Card attached and taken into use
Blinking green Card attached and initialization in progress
Yellow Card can be safely removed
Blinking yellow Card attached, removal in progress
Blinking yellow Together with the blinking red STAT LED: System waits for
confirmation of reboot operation or network override
Red Card error, for example write protection prevents from writing data to the
card
Blinking red Card initialization failed.
Unsupported card type, for example, SDXC (extra capacity) cards and
MMC cards are not supported.
PNL 1/
PNL 2 Off No devices (no wire) connected to the PNL port
Green All devices connected, identified and commissioned
Blinking green Manual or automatic discovery of devices in progress
Yellow Communication OK, but device connectivity limited.
All devices are ready to be unplugged/disconnected.
Red Communication error caused the panel port network initialization to fail.
Unknown device in the network, or something is interfering the network
and preventing proper detection of monitored devices.
Blinking red Unsupported device is found in the network, or there are too many
devices in the network to be monitored