Firmware Manual

9000X AF Drives
8-58 For more information visit: www.eaton.com
MN04004001E
August 2010
Description of Parameters
603 Voltage at field weakening
point
234567 (P1.6.5)
Above the frequency at the field weakening point, the output voltage remains at the
set maximum value. Below the frequency at the field weakening point, the output
voltage depends on the setting of the V/Hz curve parameters. See ID109, ID108, ID604
and ID605.
When the parameters ID110 and ID111 (nominal voltage and nominal frequency of the
motor) are set, the parameters ID602 and ID603 are automatically set to the
corresponding values. If you need different values for the field weakening point and
the maximum output voltage, change these parameters after setting ID110 and ID111.
604 V/Hz curve, middle point
frequency
234567 (P1.6.6)
If the programmable V/Hz curve has been selected with ID108 this parameter defines
the middle point frequency of the curve. See Figure 8-2.
605 V/Hz curve, middle point
voltage
234567 (P1.6.7)
If the programmable V/Hz curve has been selected with the ID108 this parameter
defines the middle point voltage of the curve. See Figure 8-2.
606 Output voltage at zero
frequency
234567 (P1.6.8)
If the programmable V/Hz curve has been selected with the ID108 this parameter
defines the zero frequency voltage of the curve. See Figure 8-2.
607 Overvoltage controller 234567 (P1.6.10)
These parameters allow the under-/overvoltage controllers to be switched out of
operation. This may be useful, for example, if the main supply voltage varies more
than -15% to +10% and the application will not tolerate this over-/undervoltage. In this
case, the regulator controls the output frequency taking the supply fluctuations into
account.
0 Controller switched off
1 Controller switched on (no ramping) = Minor adjustments of OP
frequency are made
2 Controller switched on (with ramping) = Controller adjusts OP freq. up to
max. freq.
608 Undervoltage controller 234567 (P1.6.11)
See ID607.
Note: Over-/undervoltage trips may occur when the controllers are switched off.
0 Controller switched off
1 Controller switched on
609 Torque limit 6 (P1.10.1)
With this parameter you can set the torque limit control between 0.0 – 400.0%.