Controllers
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
Baumüller Nürnberg GmbH
406
3.7
Figure 102:
Characteristics of Kp (Kv is analog) and Tn depending on the speed
the characteristics of Kp and Tn is shown due to the speed controller adap-
tion. While Kp and Kv are linear, Tn mostly has a hyperbolic shape.
The position/speed controller adaption can be activated by the (controller adaption-)
mode
.
If the middle speed threshold is parameterized to 0, the middle interpolation point is not
applicable and the adaption is executed between the upper and lower threshold.
3.7.1.3 Cyclical Ks adaption
Adaption of the Ks factor that can be programmed freely.
The torque of inertia changes at some applications. This requires a cyclical change of the
Ks factor and can be adapted via the control and parameter
.
The Ks value is updated in RT1 cycle.
The cyclical Ks adaption can be activated by (controller adaption) mode
.
3.7.1.4 Acceleration feedforward
There are four different types of acceleration feedforward:
– From the speed feedforward change
– From the entire speed set value
– From the set value manager
– External acceleration feedforward
By the option "from the speed feedforward change" the acceleration feedforward is ob-
tained from the speed feedforward differentiation in the RT0 cycle. When selecting "from
the entire speed set value" the sum of position controller output and speed feedforward
Kp * Kp
adapt1
Kp * Kp
adapt2
Kp [18.24]
Tn [18.25]
Tn * Tn
adapt2
Tn * Tn
adapt1
n
1
n
2
n
3
Speed