Keba ServoOne junior Device Help

l Becalculatedinternallybythefirmware(smalltable),OR
l Bespecifiedexternally,forexampleusingahigher-ordercontrol(large
table),OR
l Beloadedviathefilesystem(largetable)
Two LUTs of different sizes (small and large table) are implemented for this purpose.
Each of these tables has two performance maps, one for the direct axis ref. currente
and one for the q-current reference values. Each are dependent on the actual speed
‘nact’ (x-direction) and the target torque ‘Tset’ (y-direction): field[x*y].
Small table
The small table has a fixed size for the performance map of [16x40] table entries. It is
calculated internally by the servo controller. Only positive torques.
Activate small LUT: P435[0] - CON_FM_FWMode = REL(3)
The inductances of the d and q axis must be known in order to calculate the LUT
values internally.
ID Index Name / Setting Unit Function
P471 0 MOT_Lsig mH
d axis inductance
P480 0 MOT_Lsq mH qaxisinductance
Table 7.29: Specifying the inductances of the d and q axis
The values for the two inductances must be taken from the motor data sheet or can
be determined by means of the motor identification ( see also section "Motor
identification" on page45 )

Large table
ID No.: 0842.26B.5-01Date: 09.2020
ServoOne- Device Help
153
7 Control
The large table has a variable size for the performance map which can be set for a
minimum of [3x3] to a maximum of [128x128] table entries. It is specified externally
to the servo controller Negative torques are also possible.
Activate large LUT: P435[0] - CON_FM_FWMode = LUText(6)
The size of the map in the large table can be adapted using parameter P 1965 -
CON_FM_LUT_Para[0,1].
ID Index Name / Setting Unit Function
P1965  CON_FM_LUT_Para  
P1965 0 LUT:Useofspeed 
Table size in the speed direction
Factory setting: 121
Minimum: 3
Maximum: 128
P1965 1 LUT:Useoftorque  Tablesizeinthetorquedirection
Factorysetting:31
Minimum:3
Maximum:128
Table 7.30: Specifying the size of the performance map for the large table
The scaling of the map for the d and q current reference results from the nominal
torque TNom and the nominal speed SNom as well as the associated scaling
parameters TMax and SMax.

Keba ServoOne junior Specifications

General

Brand	Keba
Model	ServoOne junior
Category	Controller
Language	English