Redback SI5000 - Inverter Unexpectedly or Frequently Shutting down; Multiple Inverter Installations; Internet Connection Problems

Troubleshooting
16 Owner’s Guide – Redback Smart Inverter – v1.4
Inverter unexpectedly or frequently shutting down
The inverter may shut down or isolate itself from the grid if it detects supply conditions that may cause damage to the inverter;
or create an unsafe situation. Incident causes can be diagnosed by examining the data available on the portal. Unexpected
shutdowns may occur in the following circumstances:
CAUSE
RELEVANT CHARTS FOR
DIAGNOSIS (IN PORTAL) *
COMMENT
A grid outage (blackout) is occurring
Grid-Status
Wait for the grid to be restored. Your system will restart
automatically.
Grid supply is not of acceptable
quality, as defined by AS/NZS 4777.2.
Grid-Voltage
Grid
-Frequency
Grid
-Status
Ask your installer or electricity provider to investigate if
grid supply is
often poor.
If internal temperature is greater than
60
°
C.
Inverter- Temperature
Battery Cabinet
-Temp.
Output is reduced above 45
°
C.
*You may not have access to all chart parameters. Contact your installer or Redback if you require access.
Multiple inverter installations
Your installation may include 1-3 SI-series inverters, usually connected to different phases, and these inverters operate
independently except in one situation: if any inverter encounters a fault and needs to shut down, then the other two inverters
will also shut down immediately. When the first inverter recovers, or is isolated from PV and the Grid, the other two inverters
will restart.
Internet connection problems
Occasionally, your inverter may lose internet connection and be reported as “offline”. Ethernet connected systems usually self-
repair after a system restarts. Wi-Fi problems usually require that the system is re-onboarded. The most common causes of
“offline” reports are:
INDICATION
CONNECTION AFFECTED
REMEDY
ETHERNET
WI-FI
Change of Internet Service Provider e.g., Telstra,
Optus, TPG, Dodo etc
 
Ethernet: Restart the system.
Wi-Fi: Restart the system and re-onboard.
New router or modem
 
Change of Network name or SSID
 
Changed settings in router or modem
 
Changed Wi-Fi or Network password

Wi-Fi: Restart and re-onboard
Too many users or devices on your home Wi-Fi
network

Limit users or devices; upgrade Wi-Fi router;
connect inverter using ethernet.
Wi-Fi signal is weak or variable due to obstructions
or distance between the inverter and your Wi-Fi
router’s antenna.

Experiment with Wi-Fi router locations; use a
Wi-Fi extender; connect using ethernet.