User Manual

1. If batteries are present: Verify input 48 Vdc using a DMM by measuring from
to .
If batteries are not used in this system, skip to step 6.
Confirm the correct battery voltage and polarity. If the red LED indicator
is lit, the polarity is reversed. Do NOT turn on the circuit breaker.
2. Once proper voltage and polarity are confirmed, turn on (close) the main
battery circuit breaker .
Wiring
Commissioning
Pre-startup Procedures:
1. Double-check all wiring connections. Using a digital multimeter (DMM), test for continuity between
and . Ensure a neutral-ground bond is installed in the system.
2. Inspect the enclosure. Ensure no debris or tools were left inside.
3. Ensure all AC loads at the backup (or protected) load panel are disconnected.
4. Ensure all AC input feeds to the BOS are disconnected at each source.
5. Using a Phillips screwdriver, remove the clear plastic (dead front) panel (not depicted). The four
required screws are marked with  in the image to the right.
6. Energize the system as below. Follow the procedures which are applicable to the system. If any
elements are not present (including batteries, PV, or a generator), ignore those procedures.
To energize the Skybox:
PV LED Legend
Caution
3. On the first power-up, a welcome message is shown. The right arrow 
proceeds to the Setup Wizard. This steps through language, region, and
similar changes, then PV, battery, and AC settings. On the last screen,
the Save key proceeds to the Home screen. (The Home screen appears
after every subsequent power reset.)
4. From the Home screen, turn on the SkyBox with the O
N/OFF key .
NOTE: Do not close the LOAD circuit breaker .
5. Using a DMM, verify the inverted L1 output 120 Vac on the upper LOAD
terminals from t
o . Verify L2 by measuring from to .
6. Verify 240 Vac across the L
OAD terminals by measuring from to .
7. Turn on (close) the L
OAD circuit breaker . Do not connect loads at the
protected load panel.
8. Verify 120 Vac on L
OAD L1 by measuring with a DVM from to .
Verify L2 by measuring from to .
9. Verify 240 Vac across the L
OAD terminals by measuring from to .
10. Connect and test loads at the protected load panel.
11. If grid is present: Turn on the grid connection to the BOS at the source.
12. Verify 120 Vac on G
RID L1 by measuring with a DVM from to .
Verify L2 by measuring from to .
13. Verify 240 Vac across the G
RID terminals by measuring from to .
Setup Wizard (entry screen)
Setup Wizard (final screen)
Home Screen
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6
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900-0195-01-00 REV A
©2018 OutBack Power Technologies. All Rights Reserved.
5c 5d
1c
1a 2a
CAUTION: Equipment Damage
Incorrect battery polarity will damage the equipment.
!
2
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CAUTION: Reverse
polarity in negative
grounded system
Keep breaker in the OFF
position and check polarity
!
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5d
5
18. Turn on (close) the PV switch . Check indicators and again. Both indicators should light. Any other behavior means the
polarity at the top of the PV switch may be reversed.
19. On the Home screen, check the SOLAR tile (as shown to the right) and ensure it is operating normally. The SkyBox will connect to the
PV source if the voltage is above 250 Vdc. (See the Overview Guide for more information.)
20. If a generator is present: Turn off (open) the G
RID circuit breaker .
21. Start the generator. Do not turn on (close) the G
EN circuit breaker . Repeat steps 12 and 13 using , , and .
22. Turn on (close) the GEN circuit breaker . Repeat step 14. The LOAD circuit breaker may remain on (closed).
23. Stop the generator.
24. Turn on (close) the G
RID circuit breaker . Wait for the programmed connection delay to elapse. Test any grid-interactive functions.
To de-energize or shut down the system:
There is no required shutdown order. It is common to de-energize circuits in the reverse order from which they were energized.
65b
5a 5b
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11
65a
CAUTION: Equipment Damage
Incorrect PV polarity will damage the equipment.
!
14. Turn on (close) the GRID circuit breaker . The Wizard will appear for the first time if no batteries are installed. (Perform steps 3 through 10 if this is the case.)
The SkyBox transfer relay should click and the GRID tile should read PASS THROUGH.
15. Using a DMM, test the pass-through (transferred) L1 output voltage at and . Test the L2 voltage at and .
16. If PV is present: Verify that the input is in the correct range of open-circuit voltage. Confirm polarity by measuring with a DVM from to (referred to as PV1
in the legend above). Confirm polarity from to (PV2, if present).
17. Check the green LED indicators and . If a single PV input is installed, one indicator should light. If two strings are installed, both should light. Any other
behavior means the polarity may be reversed. Do NOT turn on the switch. Review all PV connections.
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4
4
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3
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



6
NOTES
If any onscreen faults or other problems occur during commissioning,
see the Troubleshooting section of the SkyBox Overview Guide.
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6
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PRODUCING
KW
0 6
7b
BEFORE CLOSING PV DISCONNECT
ENSURE LED INDICATION IS CORRECT:
TERMINALS ON PV BOARD CORRECT
ONLY PV1 TERMINALS
ONLY PV2 TERMINALS
PV1 + PV2 TERMINALS
NOTE: PV VOLTAGE > 100 VDC
REQUIRED TO LIGHT LEDS
3
WARNING: Shock Hazard
Before performing maintenance, all sources (battery, PV, and AC) must be completely de-energized. All the unit to rest for at least five minutes.