LSIS 6731001500, User Manual

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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 %
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.