﻿Valve drives that are closed or open when deenergised can be connected. On each electrical activation of the valve output, the device takes the valve direction of action configured here into account, so that the command value presettings (Valve closed OFF, 0 % / Valve opened ON, 1...100 %) can be executed in the correct direction of action. In case of voltage failure, the valve output is no longer energised. The device takes this state into account and also influences the command value feedback, according to the configured valve direction of action.
