VAC TZIDC, Configuration And Parameterization Instruction

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24 COI/TZIDC/TZIDC-200-EN | TZIDC, TZIDC-200
3.11 Parameter group 7: Control parameters
3.11.1 KP UP – KP value (up)
NOTE
In the case of most actuators, all control parameters can be
optimized by using Auto Adjust. Changes should only be
made when auto adjust cannot be executed or control
stability cannot be achieved.
The KP value is the gain of th e controller. Th e control speed
and stability are in
fl uenced by th e KP value. With higher KP
values, the control speed increases.
NOTE
The control precision is n ot a ff ected by the KP value.
To compensate for existing di ssymmetries in the controlled
system, the KP value should be set separately for both
positioning directions (up / down).
For most actuators, a satisfactory control response is
achieved with a KP value in the 2.0 ... 10.0 range.
Use the parameter
KP UP to adjust the KP value for the
upward positioning direction (towards 100 %).
3.11.2 KP DN – KP value (down)
NOTE
In the case of most actuators, all control parameters can be
optimized by using Auto Adjust. Changes should only be
made when auto adjust cannot be executed or control
stability cannot be achieved.
The KP value is the gain of th e controller. Th e control speed
and stability are in
fl uenced by th e KP value. With higher KP
values, the control speed increases.
NOTE
The control precision is n ot a ff ected by the KP value.
To compensate for existing as ymmetries in the controlled
system, the KP value should be set separately for both
positioning directions (up / down).
For most actuators, satisfactor y control behavior is achieved
with a KP value between 2.0 ... 10.0.
Use the
KP DN parameter to adjust the KP value for the
downward positioning direction (towards 0 %).
3.11.3 TV UP – TV value (up)
NOTE
In the case of most actuators, all control parameters can be
optimized by using Auto Adjust. Changes should only be
made when auto adjust cannot be executed or control
stability cannot be achieved.
The TV value is the derivative time of the controller.
The control speed and stability are a
ff ected by the TV value in
such a way that it counteracts the KP value dynamically. The
control speed decreases as the TV value increases.
To compensate for existing di ssymmetries in the controlled
system, the TV value should be con
fi gured separately for both
positioning directions (up / down).
Use the TV UP parameter to adjust the TV value for the
upward positioning direction (towards 100 %).
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