AC Module System Installation Manual
Rev. 1.0
94
Copyright © 2017 LG Electronics.
All Rights Reserved.
6-2 Web-monitoring System Event List
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 (Noti
ce #3 - AC Frequency
Changing Too Fast)
AC Frequency is the frequency at
which voltage varies on the utility
grid. This value is changing more r
apidly than allowed. And this eve
nts are usually transient and reco
nverted by 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 too high than allowed.
MI_IPV_OVR
Error
DC Current High
Ipv Status
ERROR. Ipv Status - 1
: Ipv Over (1 : Error #2
- DC Current Too Hig
h)
DC Input current from the AC Mo
dule is too high than allowed.
MI_NOT_RPT
Notice
AC Module Not
Reported
MI Comm.
Status
NOTICE. Cannot com
municate with AC Mo
dule
Communication is temporary uns
table. This condition should corre
ct itself.
MI_THM_OP
N
Error
Inverter Failure
Thermistor
Status
ERROR. Thermistor St
atus - 10 : Thermistor
Open (10 : Error #6 -
Thermistor Open)
AC Module has been in failure mo
de.
MI_THM_SHT
Error
Inverter Failure
Thermistor
Status
ERROR. Thermistor St
atus - 11 : Thermistor
Short (11 : Error #8 -
Thermistor Short)
AC Module has been in failure mo
de.
MI_TMP_PRT
Error
Temperature Pr
otection
Temperature
Protection
ERROR. Temperature
Protection - 1 : Temp.
Protection (Error #5 -
Temperature Protecti
on)
Temperature from the AC Modul
e Inverter is too hot than allowed
And AC Module locks itself to pro
tect the micro inverter from heat.
This condition usually clears with
out intervention.
MI_VAC_OVR
Notice
AC Voltage High
Vac Status
NOTICE. Vac Status 1
0 : Vac Over (Notice #
1 - AC Voltage High)
AC Voltage coming from the utilit
y has been too high than allowed.
This condition should correct itsel
f.
MI_VAC_UND Notice
AC Voltage Low
Vac Status
NOTICE. Vac Status 1
1 : Vac Under (Notice
#2 - AC Volatage Low
)
AC Voltage coming from the utilit
y has been too low than allowed.
This condition should correct itsel
f.