Behaviour in case of power failure

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Behaviour in case of power failure

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Valve position before

power failure:

Reaction of valve:

Without Power Failure Option (PFO)

... . . - . . G        . - .... / ... . . - . . A . - ....

With Power Failure Option (PFO)

... . . - . . H        . - .... / ... . . - . . C . - ....

Closed (isolated)

Valve remains closed.

Valve will close or open depending on Power Failure Option configuration.

Default is close.

Display indicates F.

Valve open or in any intermediate position

The plate remains at the current position.

 

Pfeil

All parameters are stored in a power fail save memory.