HEIDENHAIN iTNC 530 HSCI - Adjustment of the Current Controller

1130 HEIDENHAIN Technical Manual iTNC 530 HSCI
7.11.3 Adjustment of the current controller
 Enter as many machine parameters as possible.
 Assign empirical values to machine parameters that must still be
determined (see "Preparation" on page 1020).
Use the integrated oscilloscope or TNCopt to adjust the current controller.
During adjustment of the current controller the speed controller and position
controller are open. During output of the current pulses the drive controller
becomes active.
The PLC initial servicing program, whose name and path are entered in
OEM.SYS after the PLCPWM = entry, must ensure that the inverters are ready
after "Switch on external dc voltage," but that the motor brakes are not
opened.
Before and after the output of the current pulses (START STEP soft key is not
pressed) the inverter must be in the following operating mode:
 Green "READY" LED on
 Red "STO A" LED off
 Red "STO B" LED on (drive controller not ready)
During output of the current pulses:
 Green "READY" LED on
 Red "STO A" LED off
 Red "STO B" LED off (drive controller ready)
Danger
During current controller adjustment of linear and torque motors, the rotor
position of the motor is not yet known.
For this reason, if the motor brakes are not active, the motor might move
slightly when the current pulses switch on. In other words, it might oscillate
about a preferred position. It is also possible to position "manually" to the
preferred position. Do not do this, however, during a measurement.