LSIS LSLV0055H100-4COFN - Learning Protection Features; Motor Protection; Electronic Thermal Motor Overheating Prevention (ETH)

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Learning Protection Features
6 Learning Protection Features
Protection features provided by the H100 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
PRT
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 1 min
120
100–150
%
43
Electronic thermal
prevention continuous
rating
ETH Cont
100
50–150
%
Electronic Thermal (ETH) Prevention Function Setting Details
Code
Description
PRT-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.