Chapter 3: Configuration 3.6 Setting the Configuration
493-0736-11 (6-2) 179
The block can be given a twenty letter name by setting the parameter Identity.
Table 132 Analog Output Block Inputs.
Table 133 Analog Output Block Parameters.
Stiction Compensation
This function is to be used with analog output signals which control pneumatic
regulating valves with high friction components. The stiction compensation adds
short pulses of equal amplitude and duration to the analog output signal. This
significantly reduces the control error during stick-slip motion compared with
standard control without stiction compensation.
Figure 60 A stiction compensation function conneced to the analog output signal.
Inputs
Name Connection
Signal Off, Analog
Parameters
Name Setting Unit
Mode Off, Direct, Reverse, Fixed * None
MinCurrent 0.0 ≤ MinCurrent ≤ 4.0 mA
MaxCurrent 20.0 ≤ MaxCurrent ≤ 22.0 mA
FixedCurrent* 0.0 ≤ FixedCurrent ≤ 22.0 mA
Alarm Off, Warning, Error None
Loop Loop1, Loop2 None
Identity User defined text None
Available in
ECA06 ECA60 ECA600 EMA60
XXXX
Controller
Stiction Comp
Process
∑
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