Samson TROVIS 3730-3, Mounting And Operating Instructions

Page: 98 / 180

98 EB 8384-3 EN
Operating the positioner
7.4 Limiting the signal pressure
If the maximum actuator force may cause damage to the valve, the signal pressure must be
limited.
Î
Do not activate pressure limitation for double-acting actuators (AIR TO OPEN (AtO) fail-
safe position). Default setting is '
No '.
Enable configuration at the positioner before limiting the signal pressure.
Enable configuration:
If no settings are entered within 120 seconds, the enabled configuration function becomes in -
valid.
1. Turn until Code 3 appears (reading:
No ).
2. Press , the code number 3 blinks.
3. Turn until
YES appears.
4. Press to confirm (reading: ).
Enable configuration
Default: No
Limit the signal pressure:
1. Turn until Code 16 appears.
2. Press , the code number 16 blinks.
3. Turn until the required pressure limit
(1.4/2.4/3.7 bar) appears.
4. Press to confirm.
Pressure limit
Default: No
7.5 Checking the operating range of the positioner
To check the mechanical attachment and the proper functioning, the valve should be moved
through the operating range of the positioner in the manual mode with the manual set
point.