HEIDENHAIN MANUALPLUS 620 - Page 1110

1110 HEIDENHAIN Technical Manual MANUALplus 620
 If v nom and v act do not lie in the same direction on the oscilloscope, you
must change either MP_signCorrActualVal or MP_signCorrNominalVal.
Reversal of traverse
direction
If the axis does not move in the expected direction after you have pressed the
respective axis-direction key (e.g. X axis moves in negative direction although
you have pressed the X+ key), you can reverse the traversing direction.
 Invert the two values entered in the parameters MP_signCorrActualVal and
MP_signCorrNominalVal.
Correct algebraic sign