LG SV-iS5 User Manual page 9

5.1.3. ERR LED
State
On/off from time
to time
Blinking with CPU
LED at the same
time
Blinking after CPU
LED one after
another
Off
*See COM group for Frequency/Run command setting.
Indicates
The card is receiving invalid data such
as noise.
Trouble with the Modbus card
Network communication is not done
during TimeOut (I/O 49) setting.
The card is functioning normally and
receiving and sending messages
Corrective measures
Normal
Cycle the Inverter power. If the
problem persists, contact LG
Verify that the master is specifying
valid register addresses and valid
data.
5 modbus-rtu iS5 manual.doc