Samson TROVIS SAFE 3730-6, Монтаж и эксплуатация

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102 EB 8384-6S EN
Operating the positioner
During initialization the positioner adapts itself optimally to the friction conditions and the
signal pressure required by the control valve. The type and extent of auto tuning depends on
the initialization mode selected:
−
Maximum range (MAX) (standard range)
Initialization mode for simple start-up of valves with two clearly defined mechanical end
positions, e.g. three-way valves (see section 7.6.1)
−
Nominal range (NOM)
Initialization mode for all globe valves (see section 7.6.2)
−
Manually selected OPEN position (MAN)
Initialization mode for globe valves requiring OPEN position to be entered manually (see
section 7.6.3)
−
Manually selected end positions (MAN2)
Initialization mode for globe valves with manual entry of both positions (see section 7.6.4)
−
Substitute calibration (SUb)
This mode allows a positioner to be replaced while the plant is running, with the least
amount of disruption to the plant (see section 7.6.5).
For normal operation, simply start initialization by pressing the INIT key after mounting the
positioner on the valve and defining the fail-safe position and setting the volume restriction.
The positioner only needs to work with its default settings. If necessary, perform a reset (see
section 7.10).
When the write protection is activated, initialization cannot be started.
An initialization procedure in progress can be canceled by pressing the rotary pushbutton.
STOP is displayed for three seconds and the positioner changes to the fail-safe position
(SAFE). Clear the fail-safe position again over Code 0 (see section 7.12.2).
Note