Samson TROVIS 5757-3, Configuration Manual

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12 KH 5757 EN
Functions and parameters
2.9 Direction of action
Increasing/increasing (F04 - 0)
− Actual value < Set point: Actuator stem retracts
− Actual value > Set point: Actuator stem extends
Increasing/decreasing (F04 - 1)
− Actual value < Set point: Actuator stem extends
− Actual value > Set point: Actuator stem retracts
Actuator stem extended
− With globe valves: Valve CLOSED
− With three-way mixing valves: Port A
à
AB open, B
à
AB closed (see Fig. 2)
− With three-way diverting valves: Port AB
à
A closed, AB
à
B open
Actuator stem retracted
− With globe valves: Valve OPEN
− With three-way mixing valves: Port A
à
AB closed, B
à
AB open (see Fig. 2)
− With three-way diverting valves: Port AB
à
A open, AB
à
B closed
A
B
AB
AB
A
B
A AB
B
AB A
B
Mixing valve for mixing service Diverting valve for mixing service
Flow pipe
Flow pipe
Return flow pipe
Return flow pipe
A
B
AB
AB
A
B
A AB
B
AB
A
B
Fig. 2: Principle: mixing service
Functions WE Configuration
F04: Direction of action 0 F04 - 0: >> (increasing/increasing)
F04 - 1: <> (increasing/decreasing)