Solar Lattice

Fault codes › ABB / FIMER › UNO-DM-3.3/3.8/4.6/5.0-TL-PLUS-US

ABB / FIMER UNO-DM-3.3-5.0-PLUS W048

Code
W048
Shown as
Periodic GridOff
Vendor severity
Warning
Page
128
ID
fc:abb-uno-dm-3-3-5-0-plus-us-w48
IRI
https://solarlattice.org/kb/fc/abb-uno-dm-3-3-5-0-plus-us-w48
Status
active
Also known as
W048, w48, ABB / FIMER W048, Periodic GridOff
Category
Inverters
Class warning drafted · lead
Production stops drafted · lead
Clears by itself verified · fact

Decoded

Reports scheduled periodic grid disconnection.

What can be behind Scheduled periodic grid disconnection

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

The manufacturer's own cause and corrective text is not reproduced here.

Same condition on other equipment

ABB / FIMER
ABB / FIMER PVS-166-175-TL W048, ABB / FIMER PVS-60-TL W048, ABB / FIMER UNO-DM-6.0-PLUS W048

Same code in other families

Claims

defined_in

c1 drafted · lead FIMER UNO-DM-3.3-5.0-TL-PLUS-US-Q Product Manual RevB

c2 drafted · lead UNO-DM-3.3-5.0-TL-PLUS-US Product Manual RevA

has_event_class

c3 drafted · lead Warning (device continues, a condition is flagged)

from the code prefix

reports

c4 drafted · lead Scheduled periodic grid disconnection

Required disconnection to run the insulation resistance test after the grid-standard time limit

has_production_effect

c5 drafted · lead Trip (production stops)

Brief disconnection followed by automatic reconnection

review note: support check: partial - Disconnection and reconnection stated, but not described as a trip explicitly; reasonable implication.

has_recovery

c6 verified · fact Auto-reset (clears by itself)

Contact support only if disconnections happen sooner than expected

verified by: review-workflowverified on: 2026-10-23review note: support check: partial - Automatic reconnection and contact only if disconnects sooner are stated; auto-reset is implied.

applies_to

c7 drafted · lead UNO-DM-3.3/3.8/4.6/5.0-TL-PLUS-US string inverter

Data