Control Parameters - ABB STT04 Instruction Manual

TZID/AZH POSITIONER
Key
ID TAGNAME
E N TE R

Control Parameters

Key
DEVICE INFORMATION
→CONTROL PARAMETERS
S PE C IA L
FE ATU R E
CHARACTERIST. CURVE
OPERATING MODE
STROKE TIME (SEC)
E N TE R
UP:
DOWN:
Kp VALUE
E N TE R
UP:
DOWN:
Tv VALUE (mSEC)
E N TE R
UP:
DOWN:
SPECIAL FEATURE
M - 10
Display
Complete.
READY
Use this function to view measured stroke time, view and edit propor-
tional gain, deviation action, go pulse, offset, and noise of the posi-
tioner. The screen flow of this section applies for TZID/AZH revision
5.x or greater.
NOTE: All control parameters are best determined for most actua-
tors by autostroke. Modify the parameters only if acceptable control
action cannot be achieved or if autostroke cannot be performed.
Display
Select CONTROL PARAMETERS.
Shows measured stroke time for up and down posi-
tioning directions.
n.n
n.n
Edit Kp value.
Represents the gain of the PD controller and influ-
nn.n
ences the speed and stability of control. A high Kp
nn.n
(proportional gain) value increases control speed.
Edit the Tv value.
Represents the deviation action of the PD controller.
nn.n
Tv influences the control speed and stability by
nn.n
dynamically counteracting the Kp value. The control
speed decreases with an increasing Tv value.
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