Vacon NX series Applications Manual page 326

VACON · 326
Fig. 76: Setting of the minimum load
715 UNDERLOAD PROTECTION, ZERO FREQUENCY LOAD 234567 (2.7.19)
The torque limit can be set between 5.0—150.0 % x T
Gives the value for the minimum torque that is possible with zero frequency. 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 8.6
Parameters of underload protection (IDs 713 to 716).
716 UNDERLOAD TIME 234567 (2.7.20)
You can set the time limit between 2.0 and 600.0 s.
This is the maximum time for an underload status to be active. 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 8.6
Parameters of underload protection (IDs 713 to 716).
8
Torque
ID714
ID715
Underload area
Field weakening
5 Hz
point
PARAMETER DESCRIPTIONS
f
.
nMotor
TEL. +358 (0)201 2121 · FAX +358 (0)201 212 205