HEIDENHAIN MANUALPLUS 620 - 6.16.17 Current controller

January 2012 6.16 The Control Loop 885
6.16.17 Current controller
The parameter object CfgCurrentControl is not required for:
 Virtual axes (MP_axisMode = Virtual)
 Axes that are only for display (MP_axisMode = Display)
 Analog axes (MP_axisHw = AnalogMC, AnalogCC)
Several digital current controllers for the axes and spindle(s) are integrated in
the MANUALplus 620.
The nominal values for magnetizing current I
dnom
and torque current I
qnom
are
divided into the PWM signals U
1
, U
2
and U
3
through a PI controller and vector
rotator VD+, and are transferred to the power module through X51 to X60 (via
internal connections on the UEC 11x).
The actual current values I
1act
and I
2act
are determined by the power module
and are transferred to vector rotator VD– through X51 to X60 (via internal
connections on the UEC 11x). The vector rotator determines the actual values
of magnetizing current I
dAct
and torque current I
qNom
.
Circuit diagram:
Settings in the configuration editor MP number
Axes
ParameterSets
[Key name of the parameter set]
CfgCurrentControl
iCtrlPropGain
iCtrlIntGain
401001
401002