Positioner Adjustment End Position Closed - AUMA VARIOMATIC SARV 10.1 Operation Instructions Manual

Operation instructions
15.4 Positioner adjustment
end position CLOSED
If Possible LED indications:
(refer to figures T1 and T2)
LEDs are not illuminated
LED (V24 green) is
illuminated
LED (V23 yellow) is
illuminated
Programming for faults:
.
Behaviour on loss of input signal E1 and / or
on loss of feedback signal E2
Pre-condition: Signals 4 - 20 mA
Process related (desired)
behaviour:
fail as is, i.e. actuator stops imme-
diately and remains at this position.
fail close, i.e. actuator drives valve
to position CLOSED.
fail open, i.e. actuator drives valve
to position OPEN.
Before commencing the positioner adjustment it must be
ensured that the limit and torque switching of the actuator
(clauses 8-10) as well as the feedback (clauses 12 and 13)
have been set.
.
.
Set selector switch (local controls) to position I (LOCAL).
.
Run multi-turn actuator by depressing push-button
CLOSED.
Connect input signal E1(nominal value) (0 or 4 mA).
.
Missing signal E1 and / or E2 is indicated by LED E1/E2 < 4 mA
(figures T1+T2 / V37).
To measure the nominal value E1 connect Voltmeter (0 - 5 V) to the
measuring points M1 and M2 (figure T1, page 22).
.
For E1 (nominal value) = 0 mA: measure 0 V.
For E1 (nominal value) = 4 mA: measure 1 V.
To measure the actual value E2 connect voltmeter to measuring points
M3 and M4.
For E2 (actual value) = 4 mA: measure 1 V.
.
If measured value is not correct: Perform feedback adjustment according
to page 14 clause 12, or page 15 clause 13.
Set potentiometer R35 (∆E) and R31 (sens) to minimal value by turning
counter-clockwise.
Then Required setting in end position CLOSED:
(refer to figures T1 and T2)
Turn potentiometer "0" (R25) slightly clockwise until
LED (V23 yellow) lights up
Turn potentiometer "0" (R25) slightly clockwise until
LED (V24) goes out and LED
Turn potentiometer "0" (R25) counter-clockwise until LED
(V23) goes out.
Then turn potentiometer "0" (R25) slightly clockwise until LED
(V 23 gelb) lights up again.
Multi-turn actuators SARV 07.1 - SARV 10.1
AUMA VARIOMATIC
Programming:
(Figure T1, page 22)
(V23 yellow) lights up
to end position
21