9.581.140-6
Page:
60
9.3.3 Setting the speed controller
The items of this menu define the behaviour of the speed controllers.
By pressing key
„E“,
you can branch in the items of the menu to set the parameters. By key
„C“
you
return to the main menu
Explanation of terms
P (Proportional)
and
I (Integral)
- amplification of controller:
•
With the
P
-factor it is possible to define an
immediate response
to speed deviations, i.e. it is
responsible for the immediate response of the controller. High values result in rough running
(vibrations).
•
The I-component is responsible for the accuracy of the controller. Through the I-component,
the controller generates a continuously increasing torque until there is a deviation between the
set value and the actual value (system deviation). The I-portion determines how fast the
torque increases - the smaller the I-portion (integration time) the faster the torque increases.
Values which are too low may result in instability of the control system (vibrations).
The factory settings are relatively "soft" so that the controller will work in the stable range in any case.
Generally, the basic factory settings are sufficient to ensure a satisfactory travel and control behaviour.
Regulator structure of the VVVF-controller:
In order to enable optimum control of the whole travel range, several regulators are used:
Stopping regulator (
Halte_P, Halte_I
): Only used for stopping the drive when the brake is opened
This regulator takes over the complete load and must therefore react very quickly in order to prevent
the drive from turning away. If the default settings do not result in an optimum load take-over, the
behaviour can be improved by decreasing the I-portion (Halte_I)
Speed regulator (
n_P, n_I
): Activated during the travel operation. The amplification can be changed as
from a definable speed threshold (
GA
). The amplification values for acceleration and deceleration can
be set separately (
K START, K STOP
).
Position regulator (LR): During the deceleration operation, a position regulator is active.
(K START)
(n_P, n_I)
GA
v
t
(K STOP) (LR)
(Halte_P)
(Halte_I)
Proportional coefficient of the speed controller.
Integration time of the speed controller.
Setting
Control Settings
----------------------
○
Control Settings
n P 60
----------------------
○
Control Settings
n I 60
----------------------
○
Summary of Contents for FRC-F Series
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