User Manual

L1
L2
NEU
GROUND
AC Subpanel
Loads
L1
L2
NEU
GROUND
Utility
Grid
AC Distribution Panel
N
AC Generator
Generator
Start
L1 L2
L1 L2 N
Photovoltaic
(PV) Array
Neutral
HOT L1
Ground
AC LEGEND
N
L1
HOT L2
L2
Battery
Bank
RTS
BMS
900-0195-01-00 REV A
©2018 OutBack Power Technologies. All Rights Reserved.
Wiring
and : Connect ground wires for battery, AC, PV, and
additional PV equ
ipment.
: Connect to SkyBox negative (–) , then connect to
battery negative (–).
and : Connect PV array negative (–) and positive (+) wires.
Use terminals
and for a second array, if present.
: Connect all AC neutral wires.
: Connect SkyBox ground
wire to in BOS.
: Ensur
e the rapid shutdown jumper or device is installed into A
UX terminals. Remove the factory
jumper before installing an external device. Route the wires through channel .
NOTE: The SkyBox will not function unless one of these is installed. It will show a Rapid Shutdown fault.
and : Connect to the matching sockets in the wiring compartment.
: Connect SkyBox PV negative (–) wire to . Do not remove the jumper cap.
NOTE: is on the opposite side of the switch from and .
: Connect SkyBox PV positive (+) wire to . Ensure that
all four screws at this location are tight.
: Connect AFCI cable assembly to SkyBox socket .
: Connect to battery positive (+).
: Connect to SkyBox positive (+) .
and : Connect to load subpanel L1 and L2 respectively.
and : Connect to utility grid L1 and L2 respectively.
and : Connect to generator L1 and L2 respectively.
: If current transducers (CT) are in use, install the wires into A
UX terminals.
Route the wires through channel . These are usually installed at the
utility grid input to the main AC panel.
: Connect internet cable to S
KYBOX port . Route through channel .
NOTE: Do not connect this cable to the other ports on the display.
: For batteries with a separate battery management system (BMS):
The BMS (CAN bus) adapter cable converts the RJ45 cable end to RJ11.
It connects to the B
AT MON port . Do not insert the RTS or any other
RJ11 cable into the BAT MON port.
: If a BMS is not present: Connect the remote temperature sensor
(RTS). Place the sensor on the battery sidewall, as close to the
center of the bank as possible.
: Connect generator start wires into A
UX terminals . (See the
key to the right.) Route through channel .
: To stack an additional SkyBox, use a CAT5 cable to connect to the
W
ALL (RS-485) port on the next SkyBox. The last SkyBox in
sequence has nothing connected to , marking it as the end unit.
(See the NETWORK tab in the SkyBox Programming Guide for
additional steps.)
1a
NOTES
 Make connections in the order indicated. If steps or connections are not applicable, they can be skipped.
 Tighten the applicable connections to the torque values specified in Table 1. (See opposite sheet.)
 Do not connect the PV positive (+) or negative (–) conductors to ground.
 Perform all wiring in accordance with Article 690 of the National Electric Code.
Negative
Positive
Ground
DC LEGEND
7a
7b
6
3c 4c 5c
7c 7d
9 9a
2a
2b
2c
5a 5b
3a 3b
4a 4b
14
16
18
13
13
7d
12
19
15
12
17
16
1b
7a 7b
13
18
2a
1a
3a
3b
4a
4b
5a
5b
6
7a
11
17
9
2c
1b
2b
3c 4c 5c
14
15
9a
8a
7b 8b
Circuit #1
Circuit #2
NOTE: In off-grid installations,
ensure the neutral and ground are
mechanically bonded. DO NOT
establish more than one bond.
z
CT (L1)
Internet
Rapid
Shutdown
Initiator
Gen Start (AUX)
COMMUNICATIONS LEGEND
Rapid ShutdownRJ45
RTS
AFCI
CT (L1)
BMS
Next SkyBox
PV Cable
12
13
17
Connections for current transducers on L1 and L2
AC inputs. (Only L1 is shown in the image to the left.)
10 and 11 are for hot wires; 2 and 3 are ground.
See the Programming Guide.
Rapid shutdown inputs (4 and 12).
These terminals connect to normally-
closed dry contact terminals on the
RSI (Rapid Shutdown Initiator). Use
OutBack’s ICS Plus or an equivalent
RSI system. See the RSI literature
and the SkyBox Overview Guide
(Troubleshooting section) for
instructions if rapid shutdown occurs.
Rapid shutdown outputs
(5 and 13). These are used to
duplicate the RSD connection
and function for an additional
SkyBox. They should be wired
to terminals 4 and 12 on the
next SkyBox.
Auxiliary (AUX) dry contacts (7 and 15) or 12-volt
contacts (8 and 16, up to 0.6 Adc) can serve as a
switch for Advanced Generator Start. (See the
SkyBox Programming Guide.)
Unused 1
XCT L2 GND 2
XCT L1 GND 3
RSD
INPUT 1 4
RSD
OUTPUT 1 5
Unused 6
A
UX RELAY 1 7
A
UX 12V GND 8
9 Unused
10 XCT L2
HIGH
11 XCT L1 HIGH
12 RSD INPUT 2
13 RSD
OUTPUT 2
14 Unused
15 A
UX RELAY 2
16 A
UX 12V