LSIS S100 Series Troubleshooting Manual

2. Troubleshooting
24
Keypad Display
Type
Description
Overheat Trip
Latch
Occurs when the temperature of the heat sink exceeds the
specific value.
Problem
Solution
There is a problem with the cooling
system.
Check whether there are any external substances (dust, etc.) in the
air inlet, outlet or vent.
The cooling fan has been operating
for a long time
Change the cooling fan. (Refer to 3.1.5 Replace cooling fan)
The ambient temperature is too high.
Keep the ambient temperature below 50℃.
Keypad Display
Type
Description
Fan Trip
Latch
Occurs when there is a problem with the cooling fan.
Operation will resume after setting Pr.79 1 to 0 (<22kW).
Problem
Solution
There are external substances
blocking the air vent.
Remove the external substances.
The cooling fan needs to be
replaced.
Change the cooling fan. (Refer to 3.1.5 Replace cooling fan)
Keypad Display
Type
Description
IO Board Trip
Latch
Occurs when the I/O Board or the communication card is
not (or poorly) connected to the inverter.
Problem
Solution
There is a communication problem
with the loader that is connected to
the inverter and the remote loader.
Check whether the communications line is properly connected.
OHT
FAN
IOT
S 1 0 0
E R R C

LSIS S100 Series Specifications

General

Brand	LSIS
Model	S100 Series
Category	Controller
Language	English