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F0022 STO2 LOST Fault in ABB ACSM1 Drive

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(@click2electro)
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How can resolve problem F0022 STO2 LOST Fault in ABB ACSM1 Drive ?

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Posts: 18330
Admin
Topic starter
(@click2electro)
Member
Joined: 4 years ago

Cause : Safe Torque Off function is active, i.e. safety circuit signal 1 connected between X6:2 and X6:4 is lost while drive is at stopped state and parameter 46.07 STO DIAGNOSTIC setting is (2) Alarm or (3) No

Check safety circuit connections.

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