Keba ServoOne User Manual

P No. Index Name Unit Description
344 0 CON_FM_VConTF ms Timeconstantofvoltagecontrolleractualvalue
filter
345 0 CON_FM_VConKp A/V VoltagecontrollergainfactorKp
346 0 CON_FM_VConTn ms Voltagecontrollerintegral-actiontimeTn
347 0 CON_FM_VRef % Voltagecontrollerreference(as%ofthecurrent
DClinkvoltage)Ifthevalue0%isset,the
controllerisnotactive.
458 0 MOT_SNom rpm Motorratedspeed
Table 7.26: “Voltage controller” parameters
NOTE
l Ifthecontrolreserveistoosmall,theServocontrollertypically
shutsoffwithanovercurrenterror.
ID No.: 0842.26B.5-01Date: 09.2020
ServoOne- Device Help
148
7 Control
7.7FieldweakeningandLookUpTable(LUT),
synchronousmotor
LookUp Table, LUT
For better control of motors with a torque reluctance component. For motors with
different inductances on the d and q axis, a reluctance torque can contribute to
obtaining better utilization of the overall torque. The d and q current have feed
forward control in dependence on the target torque and the actual speed by means
of tables (LUT). As this approach also subjects the d component of the current to
feed forward control in exactly the same manner as the field weakening designed to
achieve higher speeds as described below, the LUT usually considers both the
torque and the field weakening simultaneously for the d current.
Field weakening
Synchronous motors can also be operated above their rated speed at rated voltage
by reducing their voltage consumption through the injection of a current component.
Features
l Themethodisrelativelyrobustagainstparameterfluctuations.
l Thevoltagecontrollercanonlyfollowrapidspeedandtorquechangestoa
limiteddegree.
l Anon-optimizedvoltagecontrollermaycauseoscillation;thecontrollermust
beoptimized.

Keba ServoOne Specifications

General

Brand	Keba
Model	ServoOne
Category	Controller
Language	English