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Otis 211 AT400 door problem

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 Boa
(@Boa)
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Topic starter   [#17839]
had a problem with black belt operator on a 211, changed to the AT400. door learns and setup properly, turn to auto and as soon as dcl goes high (comes off limit) doors close back. if I hold the door open button or break detector beam, doors open until release button or unobstruct beam. Any ideas appreciated, problem something simple I'm missing and no prints on job



   
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(@NewMech)
Joined: 1 second ago
Posts: 0
 
Are you still on local operation, los input?

Stuck door close button?

Do you have a tool to monitor inputs to the operator?



   
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 Boa
(@Boa)
Joined: 1 second ago
Posts: 0
Topic starter  
Been tracing back, found right diagrams, looking like the program chips corrupted.



   
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