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6
English
Operating Instructions
bar-positurn2 and bar-positrol
Safety instructions and warnings:
Operator of positurn/positrol:
Authorized persons are instructed how to
operate barpositurn and barpositrol af
ter they read and understood this instruc
tion completely.
Operator for installation and service:
Authorized persons are instructed in all
points of the positioner after they read and
understood this instruction completely.
In its standard form, the barpositurn2 /
positrol is designed and manufactured for
actuators with a closing direction for val
ves in a clockwise manner (cw). The actu
ator undertakes the basic position with a
closed valve. In the case of corresponding
units, the basic position corresponds to so
called safety effect „currentfree closed“.
In the initialisation process, the positioner
adjusts to the defined actuator pivoting
range. The analog activation is triggered
from the control point and effects the pro
portional allocation of the defined pivoting
angle to the set value (input) signal.
In a similar manner, the defined pivoting
angle is allocated an analog positioning
signal. Binary signals are formed additio
nally at the start and end of the pivoting
range. Electrical connection is made at ter
minal blocks inside the unit.
Pneumatic connection is made directly at
the external solenoid valves for positurn.
The pneumatic connection of the positrol
is made at the housing.
The barpositurn2 is mounted
• with a bracket onto actuators with inter
face acc. to VDI/VDE 3845
• or directly onto actuators type actubar.
Solenoid valves are fitted to standard inter
faces with typerelated material.
The barpositrol is mounted
•
directly onto actuators with interface
acc. to VDI/VDE 3845 with a maximum
shaft diameter up to 70 mm and a
shaft heigth of 30 mm.
Functional Description:
Overview of versions
Product
Version
Actuator type
In case of power failuer
bar-positurn
PN2-D
double acting
fail to stay
bar-positrol
PL-D
double acting
fail to stay
bar-positurn
PN2-S
double acting
fail to close / open
bar-positrol
PL-S
double acting
fail to close / open
bar-positurn
PN2-E
single acting
fail to close / open (depending of springs)
bar-positrol
PL-E
single acting
fail to close / open (depending of springs)