Reference Source

boL · GA800 · Fault

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

Brand
Yaskawa
Model / series
GA800
Fault code
boL verified
Fault name
BrakingTransistor Overload Fault verified
Type
Fault verified
Cause
The duty cycle of the braking transistor is high (the regeneration power or repetition frequency is high). verified
Corrective action
• Install a braking unit (CDBR-series). • Install a regenerative converter. • Increase the deceleration time. verified
Sourceyaskawa.com
Verified
Review by
DatasetIndustrial VFD fault and alarm codes by brand

What the source says

boL (004F) BrakingTransistor Overload Fault Illuminated Fault 93

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 duty cycle of the braking transistor is high (the regeneration power or repetition frequency is high).

Corrective action

• Install a braking unit (CDBR-series). • Install a regenerative converter. • Increase the deceleration time.

— 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.