rotork YT-2600 Series, Product Manual

Page: 39 / 57

Smart Positioner
YT-2600 series Product manual
Ver. 1.30
39
8.6.2
P1 Value (KP1)
P value indicates the ratio of the compensation signal based on the percentage of error allowance. As
the value increase, the positioner finds the target point quickly, but it is more likely to have hunting. As
the value decrease, the stability of the positioner is higher, but it finds the target point slowly. But these
values are applicable for only when input signal is increasing.
→ →
<+>/<
-
>
→
Press <+> or
<
-
> button
if the above is not
displayed.
<ESC>
3 times
→
8.6.3
D1 Value (Kd1)
D value indicates the derivative value of the compensation signal based on the percentage of error
allowance. As the value increase, it is more likely to have hunting. As the value decreases, it can
have poor linearity or dynamic characteristic. but these values are applicable for only when input signal
is increasing.
→ →
<+>/<
-
>
→
Press <+> or
<
-
> button
if the above is not
displayed.
<ESC>
3 times
→
8.6.4
P2 (KP2) and D2 (Kd2) values
P2 and D2 values’ principles are same as P1 and D1, but these values are applicable for only when
input signal is decreasing.
8.6.5
P_ (KP_) and D_ (Kd_) Values
P_ and D_ values’ principles are same as P and D values, but these values will be activated when the
error percentage of the actual stroke per input signal reaches within 1 %.