Power Electronics V2 Series User Manual page 23

This drawing show s re
4
10
3
10
2
10
1
10
0
10
1 1. 5
POT6
Description
R ange
Unit
Function
Adjust
Application s
POT7
Descrip tion
Range
F unction
A djust
A pplications
22 | POWER ELECTRONICS User's Manual V2
sponse time under different ov
2 2.5
Fig. 19: Overload curve.
UNDERLOAD
Underload current.
0,2 to 0.6 x In, where In is the nominal current of the soft starter.
Amps
Underload current determines the current bellow a motor must not work.
Usually leave as 60% of the
setting is 0.2x nominal current, medium is 0
position is 0.6x nominal current.
This protection helps to detect mechanical problems as broken shafts, belts, ...
when this occurs, the motor is running on no load conditions.
Working with pumps this protection help us to detect no load pump operation,
due to a lack of water or pump input pipe water leakage.
UNDERLOAD CURVE
Underload curve.
Min.-Max.
Min: Fastest curve.
Max: Slowest curve.
This parameter sets the maximum operation time under underload conditions
before tripping. See overload POT5.
Depends on the application, but should be set to trip as soon as a condition
occurs.
Pumps, fans.
erload conditions:
Overload curve = 10
Overload curve= 5
Overload curve= 1
3 3.5 4
In x
nominal current of the motor. Minimum Underload
.4x nominal current, and maximum
4.5 5 5.5
DT0026B
V2MT01II
6