Samson TROVIS 3730-1, Translation Of Original Instructions

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7-8 EB 8484-1 EN
Start-up and configuration
7.5.4 Entering the direction of action
The direction of action ( P8 ) is set to increasing/increasing (>>) by default, i.e. when the posi -
tioner is initialized, 0 % is displayed when the valve is closed and 100 % when the valve is
fully open. If necessary, the direction of action can be changed.
The direction of action depends on the selected fail-safe position (see section 7.3):
− After initialization with Code
P3 = ATO , Code P8 is automatically set to >> (increasing/in-
creasing).
− After initialization with Code P3 = ATC , Code P8 is automatically set to <> (increasing/
decreasing).
− Code P8 setting can be adapted as required after initialization is completed.
Changing the direction of action to increasing/decreasing:
Î
Enable configuration (section 7.1).
1. Turn until Code P8 appears.
2. Press to confirm the selected code. P8 blinks.
3. Turn until appears.
4. Press to confirm the setting.
Table 7-1 shows the relationship between the direction of action and valve position.
Table 7-1: Relationship between direction of action and valve position
Valve CLOSED OPEN
Display 0 % 100 %
Direction of action increasing/increasing (>>) 4 mA 20 mA
Direction of action increasing/decreasing (<>) 20 mA 4 mA
Note