Simoreg 6RA70 Drive Field voltage to increase

I wants to increase the drive field voltage from 215 to 330.Please any one help in this regards.The connected motor field voltage is 330 with 3.2/5.1 Amps. But the drive giving the out put voltage of 220 and the current is 4.7.

Regards,

Mani

Set the drive up for field current regulation, and set that.
Field current is more accurate, and meaningful, then voltage control, as the winding resistance changes with heat.