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Electronics
AC Module System Installation Manual
Copyright © 2020 LG Electronics.
All Rights Reserved.
95
Rev. 1.0
Cause
Device
Event Code
Impact
Event Name
(App / Web)
Event Class
Description
Remarks
MI
MI_ANG_ERR
Notice
AC
Frequency
changing
too fast
Angle
Status
NOTICE. Angle Status
- 1: Angle Error (Notice
#3 - AC Frequency
Changing Too Fast)
AC Frequency is the
frequency at which
voltage varies on the
utility grid. This value is
changing more rapidly
than allowed. And
this events are usually
transient and reconverted
by the utility.
MI_IAC_OVR
Error
AC Current
High
Iac Status
ERROR. Iac Status - 1:
Iac Over (Error #3 -
AC Current Too High)
AC Output current from
the AC Module is higher
than allowed.
MI_IPV_OVR
Error
DC Current
High
Ipv Status
ERROR. Ipv Status- 1:
Ipv Over
(1: Error #2 - DC
Current Too High)
DC Input current from the
AC Module is higher than
allowed.
MI_NOT_RPT
Notice
AC Module Not
Reported
MI Comm.
Status
NOTICE. Cannot
communicate with AC
Module
Communication is
temporarily unstable. This
condition should correct
itself.
MI_THM_OP N
Error
Inverter
Failure
Thermistor
Status
ERROR. Thermistor
Status - 10: Thermitor
Open (10: Error #6
Thermistor Open)
AC Module has been in
failure mode.
MI_THM_SHT
Error
Inverter
Failure
Thermistor
Status
ERROR .Thermistor
Status - 11: Thermistor
Short (11: Error #8
Thermistor Short)
AC Module has been in
failure mode.
MI_TMP_PRT
Error
Temperature
Protection
Temperature
Protection
ERROR. Temperature
Protection - 1: Temp.
Protection (Error #5
Temperature
Protection)
Temperature from the
AC Module Inverter is
hotter than allowed. And
AC Module locks itself to
protect the micro inverter
from heat. This condition
usually clears with out
intervention.
MI_VAC_OVR
Notice
AC Voltage
High
Vac Status
NOTICE. Vac Status
10: Vac Over (Notice
#1
- AC Voltage High)
AC Voltage coming
from the utlity has been
higher than allowed. This
condition should correct
itself.
MI_VAC_UND
Notice
AC Voltage
Low
Vac Status
NOTICE. Vac Status
11: Vac Under (Notice
#2 - AC Volatage Low )
AC Voltage coming from
the utility has been
lower than allowed. This
condition should correct
itself.
6-2 Web Monitoring System Event List