Troubleshooting; Backup Circuits Have No Power; Inverter Unexpected Shutdown - Redback SH5000 Owner's Manual

Troubleshooting

12.1

Backup circuits have no power

The most common causes are overloaded circuit isolators
tripping OFF (anytime), or the battery being fully discharged
(during a grid outage). Troubleshoot using the guide below.
INDICATION PROBABLE CAUSE
No power on any BATTERY SYSTEM DC
backup circuit (during a isolator is OFF
grid outage) (down)
One or more
Enclosure Isolators
are OFF (to right)
Battery is depleted.
Battery depletes
prematurely.
The House Backup Faulty appliance,
Circuit isolator is overload, or
tripping electrical fault.
The Inverter BACKUP The inverter Backup
AC isolator has tripped circuit was
overloaded
The Inverter BACKUP A more complex
AC isolator trips problem exists.
repeatedly.
Solar Supply Main There is a wiring or
Switch trips inverter fault.
12.2

Inverter unexpected shutdown

The inverter may shut down or isolate itself from the grid if it detects circumstances that may cause damage to the inverter or
batteries; or create an unsafe situation. Incident causes can be diagnosed by examining the data available on the portal.
Unexpected shutdowns may occur due to:
CAUSE
Continuous Backup Load exceeds
4600W.
Backup Load exceeds 6900W for more
than 10 seconds.
Backup Load exceeds available Battery
+ Solar power.
If internal temperature is greater than
60 C.
°
Grid supply is not of acceptable
quality, as defined by AS/NZS 4777.2.
ACTION
Turn BATTERY SYSTEM DC isolator ON.
Contact your installer if you suspect the Battery
System DC isolator is tripping.
Turn all Enclosure Isolators ON (to left).
On a partly cloudy day, minimise the loads on the backup circuits—the inverter
shuts down if demand exceeds the supply available from solar e.g. when the
panels are shaded. Otherwise, wait for grid power to be restored.
As above, and contact your installer if you suspect the battery is not charging
correctly. Also ensure all Enclosure Isolators are ON (to left).
Identify and deactivate any suspect or excess appliances. Reset the house
Backup Circuit isolator at the switchboard.
If the problem persists, contact your installer for assistance.
Reset the BACKUP AC isolator (move up). If it trips
immediately, minimise loads on the backup circuits
and try again.
Place the inverter in Bypass mode (up). This supplies
power to the backup circuit from the switchboard.
Contact your installer.
Contact your installer for assistance. Note: The Solar Supply Main Switch is
usually located on the main switchboard.
RELEVANT CHARTS FOR
DIAGNOSIS (IN PORTAL)
Backup Load- Power
Backup Load- Power
Backup Load- Power; Battery- Power; PV- Power
Inverter- Temperature
Battery Cabinet-Temp.
Grid- Voltage
Grid- Frequency Grid- Status
The total power load matters, and it adds up fast: a
kettle, toaster, large fridge, TV, iron, and a few
lights may exceed the backup circuit's allowable
power delivery.
COMMENT
May occur when too many devices are active on the
backup circuit.
May occur with too many devices or when a high
start-up current device turns on.
Output is reduced above 45
The EMS and backup circuit will operate if power is avail-
able from PV or batteries. Ask your installer or electricity
provider to investigate if grid supply is frequently poor.
Owner's Guide – Redback Smart Hy brid System - v3.8
Redback Technolo gies
C.
°
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