Reference Source

UL5 · GA800 · Fault

For UL5, model / series is GA800; type is Fault; brand is Yaskawa; fault name is Mechanical Weakening Detection 2; cause is The drive detected undertorque as specified by the conditions for mechanical weakening detection set in L6-08 [Mechanical Fatigue Detect Select], verified against its source on 2026-10-10.

Brand
Yaskawa
Model / series
GA800
Fault code
UL5 verified
Fault name
Mechanical Weakening Detection 2 verified
Type
Fault verified
Cause
The drive detected undertorque as specified by the conditions for mechanical weakening detection set in L6-08 [Mechanical Fatigue Detect Select]. verified
Corrective action
Examine the machine for deterioration. verified
Sourceyaskawa.com
Verified
Review by
DatasetIndustrial VFD fault and alarm codes by brand

What the source says

UL5 (0045) Mechanical Weakening Detection 2 Illuminated Fault 122

— yaskawa.com, retrieved 2026-09-01

Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

Cause

The drive detected undertorque as specified by the conditions for mechanical weakening detection set in L6-08 [Mechanical Fatigue Detect Select].

Corrective action

Examine the machine for deterioration.

— all from yaskawa.com, retrieved 2026-09-01

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.