Burkert 1067 Manuel Utilisateur page 84

4 OPERATION
DIRECTN (FACTORY SETTING: WPOS = RISE, XPOS = RISE): Sense or direction of action.
By means of the WPOS additional function the sense of action between the input signal and the
setpoint (WPOS). can be set, and also by means of XPOS the assignment of the air supply state of
the actuator A1 to the indicated value (XPOS).
Input DIRECTN
WPOS
I1 U1
0/4 mA 0 V RISE
20 mA 10 V
0/4 mA 0 V FALL
20 mA 10 V
Air supply DIRECTN
State A1 XPOS
Air exhaust RISE
Air on
Air exhaust FALL
Air on
SPLTRNG (factory setting: MIN = 0%, MAX = 100%): Split range
This additional function enables the set value range of a positioner to be restricted by stipulating a
minimum and maximum value. This makes it possible to divide the used unit signal range (0 ... 10
V, 0 ... 20 mA or 4 ... 20 mA) over several positioners (without or with an overlap). In this way, several
valves can be partially used either simultaneously or in sequence as a final controlling element
(Fig. 35).
Fig. 35 Splitting a unit signal range into two set value ranges
Setting range:
MIN: 0 ... 75 % of the unit signal range,
MAX: 25 ... 100 % of the unit signal range.
The minimum distance between MIN and MAX is 25%.
Setpoint
(WPOS)
0 %
100 %
100 %
0 %
Measure
(XPOS)
0 %
100 %
100 %
0 %
Plug travel (%)
Setpoint range
positioner 1
POSITIONER 1067
Fig. 34 Sense of action
0/4 mA Input signal
0 V
air exhaust
Air supply state
Setpoint range
positioner 2
E-32-
RISE
FALL
20 mA
10 V
RISE
FALL
air on
Setpoint (mA)