Siemens 6DR55 Series Manual page 89

Electropneumatic positioner for linear and part--turn actuators
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2
actuator
moves
into closed
position
tolerance band
4% < dw
?
yes
actuator moves
into open
position
hard stop
up < 97 % ?
yes
span
up--dw > 25 % ?
yes
was the
vertical position
(to stem) of the lever
driven through
?
yes
3
Figure 51
Automatic initialization part 2 (in linear actuators)
SIPART PS2 PA Manual
A5E00127926--05
set lever
arm
vertical to stem with:
continue with:
continue with:
correct height
adjustment or
turn friction clutch
no
until 0 appears
in the bottom line
of the display
no
continue with:
no
continue with:
no
Preparing for operation
continue with:
yes
no
has friction
clutch
been
moved?
set the next lowest travel
value on the lever and
check the setting of the
transmission ratio selector
set the next highest travel
value on the lever and
check the setting of the
transmission ratio selector
manual intervention
1
1
87

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