Digital Servo Controllers
DSV 130 / DSV 132 / DSV 133
Operating Manual Rev. 1.8
www.engelantriebe.de
Page 32
The parameters of the speed controller can be accessed in the menu
OPTIMISATION / SPEED CONTROLLER
.
First set the control parameters to uncritical values, i.e. low gain (approx. 0.05 .... 0.1) and high time
constant.
Step 4:
Set the demanded speed to approximately 75% of the rated speed and enable the drive.
If necessary, compare the real motor speed (e.g. laser tachometer) of the non loaded motor with the value
displayed in DSerV and adjust the voltage constant. Test for multiple speeds (right/left).
Tune up the compensation value until the motor starts to oscillate. Then reduce the value until the motor
is below the oscillating threshold.
Notice:
For BEMF control with IxR compensation, the analogue monitor displays a calculated value, which can
vary from the real speed value significantly and is thus not always usable for optimisation.
Notice:
The high time constant of the speed capture is in BEMF- Mode with IxR
compensation possibly makes the effect of Step 5 irreproducible.
Step 5:
Tune up the speed controller gain some hundredth points and start the drive again from zero to nominal
speed. Evaluate the characteristic of the speed.
Tune up the gain until the final rotation speed is reached without oscillation of the drive. For optimisation,
turn down the time constant of the speed controller until the nominal speed is attained with only one
overshoot (4-10% of the nominal speed).
