OutBack Power SkyBox Quick Start Guide

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Wiring

Commissioning

PV LED Legend

3a 3b 4a 4b 5a 5b

900-0195-01-00 REV B

5c 5d

543

19. On the Home screen, check the SOLAR tile (as shown below) and

ensure it is operating normally. The SkyBox will connect to the PV source

if the voltage is above 250 Vdc. (See the SkyBox 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

circui

t breaker . Repeat steps 12 and 13 using ,

, and .

22. Turn on (close) the GEN circuit breaker . Repeat step

14. The L

OAD 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

65a

CAUTION: Equipment Damage

Incorrect PV polarity will damage the equipment.

8. Verify 120 Vac on LOAD L1 by measuring with a DMM 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 DMM from to .

Verify L2 by measuring from to .

13. Verify 240 Vac across the G

RID terminals by measuring from to .

14. Turn on (close) the G

RID 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 LOAD

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 DMM 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.

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.

7a8a

63a

63b

3a 3b



5c 5d

PRODUCING

0 6

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

NOTES

 If any onscreen faults or other problems occur during commissioning, see the Troubleshooting section of

the SkyBox Overview Guide.

 If installing multiple SkyBoxes in parallel, see the SkyBox Programming Guide for additional instructions.

See the CAUTION below for equipment requirements.

Setup Wizard

(entry screen)

Setup Wizard

(final screen)

Home Screen

7a 8a 8b7b

Caution

CAUTION: Reverse

polarity in negative

grounded system

Keep breaker in the OFF

position and check polarity

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.

5. Using a DMM, verify the inverted L1 output 120 Vac on the upper LOAD

terminals from

to . Verify L2 by measuring from to .

6. Verify 240 Vac across the LOAD terminals by measuring from to .

7. Turn on (close) the LOAD circuit breaker . Do not connect loads at the

protected load panel.

NOTES

 Do not close the LOAD circuit breaker at this stage.

 If the SkyBox is installed in a parallel-stacked system, read the Stacking

section of the SkyBox Programming Guide before proceeding

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 .

To energize the Skybox:

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 11.

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 . Power-up may require up to 1 minute.

1a 2a

CAUTION: Equipment Damage

 All SkyBoxes require separate batteries, as each controls its own battery monitoring program. Using a

single, common battery bank will result in damage.

 All SkyBoxes must use the same AC output bus. If they are connected to independent outputs, damage

will occur. Take the appropriate safety precautions when connecting the devices to the AC output.

 All SkyBoxes must use the same AC input source. This may require the use of a bus bar. Take all

appropriate safety precautions when connecting to the AC input.

IMPORTANT

Enter BATTERY DETAILS under BATTERYtile programming.

Press the Reset

button. This will reset the battery state of charge (SoC)

to 100% and begin a new charge cycle.

WARNING: Shock Hazard

Before performing maintenance, all sources (battery, PV, and AC) must be

completely de-energized for at least five minutes.

CAUTION: Equipment Damage

Incorrect battery polarity will damage the equipment.