Vacon NX Series Applications Manual page 307

PARAMETER DESCRIPTIONS
714 UNDERLOAD PROTECTION, FIELD WEAKENING AREA LOAD 234567 (2.7.18)
Use this parameter to set the minimum torque that the motor needs when the output
frequency of the drive is higher than the frequency of the weakening point.
You can set the value of this parameter between 10.0—150.0 % x T
If you change parameter ID113 (Motor nominal current), this parameter goes automatically
back to its default value. See Chapter 9.6 Parameters of underload protection (IDs 713 to 716).
Fig. 76: Setting of the minimum load
715 UNDERLOAD PROTECTION, ZERO FREQUENCY LOAD 234567 (2.7.19)
Use this parameter to set the minimum torque that the motor needs when the output
frequency of the drive is 0.
The torque limit can be set between 5.0—150.0 % x T
See Fig. 76 Setting of the minimum load. If you change the value of parameter ID113 (Motor
nominal current), this parameter is automatically restored to the default value. See chapter
9.6 Parameters of underload protection (IDs 713 to 716).
716 UNDERLOAD TIME 234567 (2.7.20)
Use this parameter to set the maximum time for an underload state.
You can set the time limit between 2.0 and 600.0 s.
An internal counter counts the underload time. If the value of the counter goes above this
limit, the protection causes the drive to trip. The drive trips as is set in parameter ID713. If
the drive stops, the underload counter goes back to 0. See Fig. 77 The Underload time counter
function and chapter 9.6 Parameters of underload protection (IDs 713 to 716).
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
Torque
ID714
ID715
Underload area
Field weakening
5 Hz
point
.
nMotor
f
.
nMotor
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