Configuration; Additional Functions - Burkert 1067 Manuel Utilisateur

4 OPERATION

4.5 Configuration

4.5.1 Additional functions

The operating concept of the positioner is based on a strict separation between basic and additional
functions. Only the basic functions are activated in the delivery state of the unit. These enable the
unit-specific basic settings to be carried out on the initial setting up (cf § 4.3). These are adequate
for normal operation. For more demanding tasks of position and process control, additional functions
which have been preset in the configuration level, can be selected and specified.
The additional functions are listed below. For further informations about these functions , see § 4.5.4.
Fig. 27 Additional functions
Additional Parameter
function
ACTUATE
- SINGLE
INTERN
BOOST
- DOUBLE
CHARACT
- LINEAR
- 1 : 25
- 1 : 50
- 25 : 1
- 50 :1
- FREE
DEADBND - DBD
CLTIGHT
- CLT
DIRECTN WPOS
- RISE
- FALL
XPOS
- RISE
- FALL
SPLTRNG
- MIN
- MAX
Description
Function of actuator
Single acting actuator with intern or without boost valves
Single acting actuator with extern boost valves
- Double acting actuator
Selection of the transmission characteristic curve between the
input signal and stroke (correction characteristic curve)
- Linear characteristic curve
- Equal percentage characteristic line with a rangeability of 1 : 25
- Equal percentage characteristic line with a rangeability of 1 : 50
- Inverse equal percentage characteristic with a
rangeability of 25 : 1
-Inverse equal percentage characteristic with a
rangeability of 50 : 1
- User-defined, characteristic line freely programmable
Dead band with regard to the closed tight function system deviation
Close tight function
- Closed tight threshold
Relationship between input signal and measure
- Direct direction of action
- Inverse direction of action
Relationship between ventilation of the actuators chamber A1
and the setpoint
- Direct direction of action
- Inverse direction of action
Signal range splitting, input signal in % for the complete stroke
range through which the valve passes
- Input of minimum value of input signal.
- Input of maximum value of input signal.
E-23-
POSITIONER 1067