HEIDENHAIN TNC 430 PA/M - Current Controller (Only TNC 426 PB;M, TNC 430 PA;M)

December 2001 Spindle 6 – 213
6.12.12 Current Controller (Only TNC 426 PB/M, TNC 430 PA/M)
The TNC has various current controllers, depending on the hardware version.
There are logic units with and without spindle DSP:
n TNC 426 PB/M max. spindle speed 12 000 rpm, without spindle DSP
n TNC 426 PB/M max. spindle speed 30 000 rpm, with spindle DSP
n TNC 430 PA/M max. spindle speed 30 000 rpm, with spindle DSP
Current controller
without DSP
7
77
7 In MP2401, define the current gain for the spindle at standstill.
Some asynchronous motors run rough at relatively high speeds:
7
77
7 In this case, enter in MP2402.x a current gain greater than that in MP2400.x.
The current gain from MP2403 is reached at maximum speed. The current
gain is interpolated linearly between standstill and maximum speed.
• If you enter the value zero in MP2403, then the current gain from MP2401
is effective for the entire speed range.
MP2401 Gain for the spindle current controller at standstill
Input: 0.00 to 9999.99 [V/A]
0: Controller disable
MP2403 Gain for the spindle current controller at maximum speed
Input: 0.00 to 9999.99 [V/A]
0: Value from MP2401
Current controller
with DSP
7
77
7 With MP2421.x adjust the proportional factor, and with MP2431.x the
integral factor of the current controller of the first spindle. (See
"Commissioning” on page 6 – 462).
MP2421.0-1 Proportional factor of the spindle current controller for wye
and delta connection
Input: 0.00 to 9999.99 [VA]
MP2431.0-1 Integral factor of the spindle current controller for wye and
delta connection
Input: 0.00 to 9999.99 [V/As]