Redback SH5000 - Troubleshooting; Backup circuits have no power; Inverter unexpected shutdown

Redback Technologies
Owner’s Guide – Redback Smart Hybrid System - v 3.8
23
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.
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.
INDICATION
PROBABLE CAUSE
ACTION
No power on any
backup circuit (during a
grid outage)
BATTERY SYSTEM DC
i
solator is OFF
(
down)
Turn BATTERY SYSTEM DC isolator ON.
Contact your installer if you suspect the
Battery
System DC i
solator is tripping.
One or more
Enclosure
Isolators
are OFF (to right)
Turn all Enclosure Isolators ON (to left).
Battery is depleted.
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.
Battery depletes
prematurely.
As above, and contact your installer if you suspect the battery is not charging
correctly. Also ensure all Enclosure Isolators are ON (to left).
The House Backup
C
ircuit isolator is
tripping
Faulty appliance,
overload,
or
electrical fault.
Identify and deactivate any suspect or excess appliances. Reset the house
B
ackup Circuit isolator at the switchboard.
If the problem persists, contact your installer for assistance.
The Inverter BACKUP
AC isolator
has tripped
The inverter Backup
circuit was
overloaded
Reset the BACKUP AC isolator (move up). If it trips
immediately,
minimise loads on the backup circuits
and try again
.
The Inverter BACKUP
AC isolator
trips
repeatedly
.
A more complex
problem exists.
Place the inverter in Bypass mode (up). This supplies
power to the backup circuit from the switchboard.
Contact your installer.
Solar Supply Main
Switch trips
There is a wiring or
inverter fault.
Contact your installer for assistance. Note: The Solar Supply Main Switch is
usually located on the main switchboard.
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
RELEVANT CHARTS FOR
DIAGNOSIS (IN PORTAL)
COMMENT
Continuous Backup Load exceeds
4600W.
Backup Load- Power
May occur when too many devices are active on the
backup circuit.
Backup Load exceeds 6900W for more
than 10 seconds.
Backup Load- Power
May occur with too many devices or when a high
start-up current device turns on.
Backup Load exceeds available Battery
+ Solar power.
Backup Load- Power; Battery- Power; PV- Power
If internal temperature is greater than
60
°
C.
Inverter- Temperature
Battery Cabinet-Temp.
Output is reduced above 45
°
C.
Grid supply is not of acceptable
quality, as defined by AS/NZS 4777.2.
Grid- Voltage
Grid
- Frequency Grid- Status
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.