Positioner Adjustment End Position Open; Setting Of The Sensitivity - AUMA VARIOMATIC SARV 10.1 Operation Instructions Manual

Multi-turn actuators SARV 07.1 - SARV 10.1
AUMA VARIOMATIC
15.5 Positioner adjustment end
position OPEN
If LED indications:
(refer to figures T1 and T2)
LED's are not illuminated
LED (V24 green) is
illuminated
LED (V23 yellow) is
illuminated

15.6 Setting of the sensitivity

Figure T1: Positioner board
Mess-
punkte
M1
{
E1
M2
{ M3
E2
M4
22
.
Run multi-turn actuator by depressing push-button
.
end position OPEN.
Measure 5 V at measuring points M4 and M3. (Figure T1).
If measured value is not correct: Perform feedback adjustment according
.
to page 14 clause 12, or page 15 clause 13 and continue with page 21
.
subclause 15.4.
Connect max. command signal E1 = 20 mA.
Measure 5 V at measuring points M1 and M2. (Figure T1)
If measured value is not 5 V, check the externally supplied command
signal.
Then Required setting in end position OPEN:
(refer to figures T1 and T2)
Turn potentiometer „max" (R28) slightly counter-clockwise until
LED
Turn potentiometer „max" (R28) clockwise until LED (V24)
goes out.
Then turn potentiometer „max" (R28) slightly counter-clockwise until
LED
Turn potentiometer „max" (R28) slightly counter-clockwise until
LED
.
.
Set selector switch to position II (REMOTE) at local controls (figure P,
.
page 18).
Supply command signal to any value between 0/4 and 20 mA.
Set dead band with potentiometer ∆E (P9) so that multi-turn actuator does
not readjust after a single control operation:
- turning clockwise results in reduced sensitivity (dead band increased)
When setting E the following must be observed by all
means:
If the number of starts is too high, this can lead to
unnecessary wear at the valve and actuator. Therefore the
highest possible sensitivity (dead band) which is permitted
.
for the process must be set.
To prevent an exceeding of the max. permissible number of starts
(1 500 c/h) in extreme cases, a time delay between 0,5 s (left stop) and
10s (right stop) may be set with potentiometer t-off (R88).
S3
V24
V23
S2
V35
V37
R88
(V24 green) lights up.
(V24) lights up again.
(V23) goes out and LED
Bild T2: Cover plate positioner
STELLZEIT
OPERATING
TIME
- +
READY
BEREIT
J
Operation instructions
(local controls) to
(V24 green) lights up.
ENABLE
FREIGABE
V24
V23
V35
V37
R88