undefined undefined
{}

Our Brands

Welcome to the Schneider Electric Website

Welcome to our website.
How can we help you today?
What could cause a Soft Start to trip on PHF fault after starting?

Issue:
PHF on soft start after starting.

Product Line:
ATS46/ATS48 soft starts

Environment:
PHF faults

Cause:
n/a

Resolution:
Check bypass power connections at the ATS outputs (KM3 linked to A2, B2 and C2).Check that R2A, R2C is directly linked to bypass contactor KM3 (KM3 has to be closed less than 200ms after R2 change its state).Check that the current in the motor is never less than 10% of the starter nominal (Icl).

Schneider Electric Nigeria

What could cause a Soft Start to trip on PHF fault after starting?

Issue:
PHF on soft start after starting.

Product Line:
ATS46/ATS48 soft starts

Environment:
PHF faults

Cause:
n/a

Resolution:
Check bypass power connections at the ATS outputs (KM3 linked to A2, B2 and C2).Check that R2A, R2C is directly linked to bypass contactor KM3 (KM3 has to be closed less than 200ms after R2 change its state).Check that the current in the motor is never less than 10% of the starter nominal (Icl).

Schneider Electric Nigeria

Explore more
Range:
Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range:
Explore more
Range:
move-arrow-top
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.