Volume restriction Q
The volume restriction is used to adapt the
air delivery to the actuator size. Two fixed
settings are possible depending on how the
air is routed at the actuator. See section 7.1
for more details.
Display
The LC display indicates icons that are as-
signed to codes and functions. The bar
graph indicates the system deviation that de-
pends on the sign (+/–) and the value. One
bar graph element appears per 1 % system
deviation.
If the positioner is not initialized, the lever
position in degrees in relation to the longitu-
dinal axis is indicated instead of the system
deviation. One bar graph element corre-
sponds to approximately a 5° angle.
If the
fault icon appears on the display,
turn the
button until
ERR
appears to view
the error code(s)
E0
to
E15
. Refer to section
7.6 for details.
7
Start-up
WARNING!
Attach the positioner, keeping the following
sequence:
1. Remove protective film from pneumatic
connections
2. Mount the positioner on the control valve
3. Connect the supply air
4. Connect the electrical power
5. Perform the start-up settings
For most applications, the positioner is
ready for operation with its default settings,
provided it is attached properly.
The positioner just needs to be initialized af-
ter the volume restriction has been set and
the fail-safe position has been determined.
WARNING!
Do not perform a start-up while the process
is running.
On applying supply air and the electric con-
trol signal, the control valve may move
through its entire travel range/rotational an-
gle range depending on the setting.
Note:
The positioner has a function to moni-
tor the working range.
If the lever moves too close to the mechani-
cal stops (risk of mechanical damage), the
positioner vents the actuator and the valve
moves to its fail-safe position (
S
displayed
together with error code
E8
or
E9
).
In this case, check the positioner attachment.
Reset the displayed error code using
RST
(see section 7.6.)
EB 8384-1 EN
39
Start-up
Summary of Contents for 3730 Series
Page 4: ...4 EB 8384 1 EN...
Page 50: ...50 EB 8384 1 EN...
Page 54: ...54 EB 8384 1 EN...
Page 55: ...EB 8384 1 EN 55...
Page 56: ...56 EB 8384 1 EN...
Page 57: ...EB 8384 1 EN 57...
Page 58: ...58 EB 8384 1 EN...
Page 59: ...EB 8384 1 EN 59...
Page 60: ...60 EB 8384 1 EN...
Page 61: ...EB 8384 1 EN 61...
Page 62: ...62 EB 8384 1 EN...
Page 63: ...EB 8384 1 EN 63...
Page 64: ...64 EB 8384 1 EN...
Page 65: ...EB 8384 1 EN 65...
Page 70: ...70 EB 8384 1 EN...
Page 71: ...EB 8384 1 EN 71...
