# Power Failure Option

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Power Failure option is circuit board that can store as much energy to close or open the valve in the event of a power failure.

Technical data

Charging Time | 2 minutes max.
Durability | Up to 10 years @ 25°C ambient

These settings define what the valve is doing in case the power fails.

| Valve must be equipped with the ‘Power Failure Option’ [... . . - . . C . - . . . . or ... . . - . . H . - . . . .] For PFO retrofit and other options refer to chapter: «Spare parts».

Parameter | Description
Enable | ‘True’ enables the power fail reaction. ‘False’ there is no reaction on a power fail
State | 0 Battery is Charging 1 Ready to Use 2 Active 3 Failure
Functionality | 0 Open 1 Close
Delay | In seconds After this delay the power failure reaction starts after the power failed. Helps to bridge a short power interruption.
Battery Voltage | Shows state of charge
Power Fail Cycles | Counts Power Failure

Location:

CPA Parameters
Power Fail Option