LSIS LSLV-S100 - Input Power Frequency and Voltage Settings

207
Learning Protection Features
6 Learning Protection Features
Protection features provided by the S100 series inverter are categorized into two types: protection
from overheating damage to the motor, and protection against the inverter malfunction.
6.1 Motor Protection
6.1.1 Electronic Thermal Motor Overheating Prevention (ETH)
ETH is a protective function that uses the output current of the inverter without a separate
temperature sensor, to predict a rise in motor temperature to protect the motor based on its heat
characteristics.
Group
Code
Name
LCD Display
Parameter Setting
Setting range
Unit
Pr
40
Electronic thermal
prevention fault trip
selection
ETH Trip Sel
0
None
0-2
-
41
Motor cooling fan type
Motor Cooling
0
Self-cool
-
-
42
Electronic thermal one
minute rating
ETH 1min
150
120-200
%
43
Electronic thermal
prevention continuous
rating
ETH Cont
120
50-150
%
Electronic Thermal (ETH) Prevention Function Setting Details
Code
Description
Pr.40 ETH Trip Sel
ETH can be selected to provide motor thermal protection. The LCD screen
displays “E-Thermal.”
Setting
Function
0
None
The ETH function is not activated.
1
Free-Run
The inverter output is blocked. The motor coasts to a
halt (free-run).
2
Dec
The inverter decelerates the motor to a stop.
Pr.41 Motor Cooling
Select the drive mode of the cooling fan, attached to the motor.
Setting
Function
0
Self-cool
As the cooling fan is connected to the motor axis, the
cooling effect varies, based on motor speed. Most
universal induction motors have this design.