Reference Source

oS · GA800 · Fault

For oS · GA800 · Fault, brand is Yaskawa; model / series is GA800; fault code is oS; fault name is Overspeed; type is Fault, verified against its source on 2026-09-01.

Brand
Yaskawa
Model / series
GA800
Fault code
oS verified
Fault name
Overspeed verified
Type
Fault verified
Cause
There is overshoot. verified
Corrective action
• Decrease C5-01 [ASR Proportional Gain 1] and increase C5-02 [ASR Integral Time 1]. • Adjust the pulse train gain with H6-02 to H6-05 [Pulse Train Input Setting Parameters]. verified
Sourceyaskawa.com
Verified
Review by
DatasetIndustrial VFD fault and alarm codes by brand

What the source says

oS (0018) Overspeed Illuminated Fault 118

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

There is overshoot.

Corrective action

• Decrease C5-01 [ASR Proportional Gain 1] and increase C5-02 [ASR Integral Time 1]. • Adjust the pulse train gain with H6-02 to H6-05 [Pulse Train Input Setting Parameters].

— 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.