LS S100 - LED Troubleshooting Guide

Chapter3. Status Diagnostic and LED Indication
10
3.2 LED information & Troubleshooting
LED LED Status Module Status Cause Troubleshooting
CPU
OFF
Failure in
power supply
Power supply
unplugged or
contact failure
between the
inverter and
Profibus-DP
module.
Check power
supply.
Check the
inverter’s
malfunction.
Check the
connection
between
Profibus-DP
module and
the connector
of inverter.
Blinking every
second
Normal
Normal
operation
-
ERR
OFF Normal
Normal
operation
-
Blinking every
second
(with CPU
LED together)
The
communication
is interrupted.
The
communication
is not available
between the
inverter and
the
communication
module.
Check
inverter’s
malfunction.
Check the
connection
between
Profibus-DP
module and
the connector
of inverter.