EnerSys OutBack Power SkyBox, Handbook

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900-00272-01-001 Rev A
Troubleshooting
The table below shows the most common errors installers and homeowners run into when working with
the SkyBox.
Table 1
Symptom
Fault
Code System
Type
Possible Cause Possible Remedy
Impedance
self-test failed
PV – 1024 Any Array is grounded.
PV array must be floating for SkyBox to harvest
power. Check voltages from PV+ to ground and
PV- to ground with array disconnected from the
SkyBox to start the isolation process.
Arc fault active
on startup
PV – 64 Any
Arc fault cable from BOS has not
been connected to inverter. Connect the arc fault cable to inverter. See Quick
Start Guide Wiring
section, item 9.
Optimizers or other electronics are
connected to the array.
Disconnect any extra equipment from the array.
Rapid
shutdown
active
PV – 4 Any
Rapid shutdown device or jumper
(between pins 4 and 12) have not
been installed. Check connection between pins 4 and 12. Install
device or jumper as needed. See
Quick Start
Guide Wiring section, item 12.
O n / O f f
button red, no AC
output, will not accept
AC input
AC source
(grid or
generator) Rapid shutdown device or jumper
(between pins 4 and 12) have not
been installed. Check connection between pins 4 and 12. Install
device or jumper as needed. See
Quick Start
Guide Wiring section, item 12.
O n / O f f
button green, but
unit is not inverting
Any
Units installed
vs.
Units detected
do not match.
Verify
Units installed
number. Change as
necessary to match Units detected .
Blank screen, unit
unresponsive, battery
voltage present
Off-grid
Insufficient ‘bootstrap’ voltage.
SkyBox requires 44 Vdc or more before it can
function. Check voltage.
Battery related internal fault. Cycle all power and restart.
Surge load related internal fault. Remove likely loads, cycle all power, and restart.
P V
tile displays
Waiting
Any
Grid timer has not expired. Wait until timer expires.
In non-export with <200W of load. Increase loading or change AC profiles.
Unit is faulted or off.
Ensure the
O n / O f f
button is green. If it is
black, turn the unit on. If it is red or yellow,
troubleshoot the fault listed in the event logs.
Alert message: SC CAN
Communication Failure
Any
Disruption in internal
communications. If the unit does not automatically recover, contact
Technical Support (
link 11 ).
Alert message:
Non-recoverable fault
Any
Hardware fault or fault during
battery to load only.
Cycle power to the unit. Numbers generated
during error message will correspond to
messages in event logs.
Slow display speed Any Display processing error.
Cycle power to the unit by opening all breakers.
Allow the screen to go blank before restarting.
Screen freezes Any Display processing error.
To recover, press and hold anywhere on the
screen and hold for 30 seconds.
Network failed to initialize Any
Ethernet was disabled during initial
Setup Wizard
Contact Technical Support ( link 11) .
11