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BCM.00163.0_AA
Quick Installation Guide
AURORA PVI-5000/6000-TL
This Quick Installation Guide is offered in addition to the full Technical
Manual which can be found on the CD accompanying this guide and the
Power-One Renewable Energy website at: http://www.power-one.com.
The installation is to be done according to the applicable local code
regulations (National Electric Code (NEC), Canadian Electric Code (CEC),
and/or other local codes and regulations).
This Quick Installation Guide applies to the following AURORA® UNO
Inverter transformerless models:
PVI-5000-OUTD-US, PVI-5000-OUTD-US-A
PVI-6000-OUTD-US, PVI-6000-OUTD-US-A
All model dimensions are 41.4”H x 12.8”W x 8.6”D and weigh 59.5 lbs (27
kg).The -A model includes an Integrated PV AFCI Type 1 device for arc fault
detection (AFD section 12) mounted on the rail in the wiring box (Figure 2).
Wiring connections are the same for both models unless specified.
SAVE THESE INSTRUCTIONS - KEEP IN A SAFE PLACE!
This is a list of special safety symbols used in this guide. The symbol usage is as follows:
CAUTION:
Indicates directions which must be understood and followed in order to avoid
potential safety hazards, including equipment damage or personal injury.
DANGEROUS VOLTAGE:
The product works with high voltages. During inverter operation,
parts will be energized at voltage levels.
HOT TEMPERATURE:
Some surfaces may become hot. Do not touch the product while it is
in operation.
UL 1741 Standard for Safety for Inverters, Converters, Controllers and nterconnection System
Equipment for use with Distributed Energy Resources. CSA-C22.2 No. 107.1-01 - General Use
Power Supplies.
ELECTRICAL CONNECTION WARNINGS
- The PV source conductors must be Listed PV wire per NEC
690.35. PV output conductors shall consist of sheathed (jacketed) multi-conductor cables or installed
in an approved raceway and must be isolated from the enclosure and system grounding, as required by
NEC 690.35 and is the responsibility of the installer.
An external DC switch must be used if not integrated in the inverter. All models listed above have an
integrated DC switch.
The inverter shall be connected only to a dedicated branch circuit provided with the maximum branch
OCPD listed in the Technical data sheet, section
14
. To reduce the risk of fire, connect only to a circuit
provided with 25A, 30A, 35A for PVI-5000-OUTD-US(-A) or 30A, 35A, 40A for PVI-6000-OUTD-US(-A)
maximum branch circuit overcurrent protection in accordance with the NEC (ANSI/NFPA 70).
The installer and/or operator must protect the installation from access by the public and/or highlight
with signs or notices the hazards of the equipment.
Select a well-ventilated location sheltered from direct sun radiation or any other heat source (other
inverters). Choose a location that allows unobstructed airflow around the inverter. Maintain minimum
clearance distances shown.
For multiple inverter installations, position the inverters side-by-side or in a staggered arrangement so
heat dissipation does not affect other inverters; maintain minimum clearances shown.
Package contents include:
1
AURORA Inverter
1
Mounting bracket
1
Hardware bag containing:
2
- Terminal connectors
4
- 6.3 x 70mm screws
4
- S x 10 wall plugs
1
- Red cable AWG #10
1
- Black cable AWG # 10
1
- 6 x 10mm machine screw
1
- 6mm flat washer
1
- Torx 20 wrench
1
Quick Installation Guide
1
CD with Software, Warranty, and full
Technical Manual
The inverter can be configured with two independent maximum power point tracking (MPPT) channels
(Figure 3) or as a single channel with one MPPT by paralleling the two channels (Figure 4 and Figure 5).
Switch S1 (Figure 6), is used to select parallel (
PAR
) or independent (
IND
) input mode.
To access the switchbox wiring and Switch S1, loosen the four captive screws on the front covers using
the Torx wrench provided.
Before removing front covers, DC switch must be in the OFF position.
Using DC knockouts (Figure 1), connect raceway from the PV array conduits to the DC array. Pull array
wiring through and connect to String 1 and String 2 as shown in Figure 3.
TO STRING 1
TO STRING 2
TO STRING 4
(OPTIONAL)
TO STRING 3
(OPTIONAL)
Input Mode Switch S1 in IND
(down) default position
Switch S1, located on the
inverter connection board,
Figure 6, is set in IND
position (DOWN) by default.
Figure 1: Switch and wiring box external/ internal view
Connect array to String 1 and String 2 input positions shown, running separate wires for POS and NEG
for each array. Up to four strings can be connected in the INDEPENDENT mode.
To connect four strings, String 3 and String 4 are connected in addition to 1 and 2, running separate
wires for POS and NEG for each array.
The maximum allowable input short circuit current limit of the PV array for each MPPT
input channel is 22Adc.
Array equipment grounding must be installed per the requirements of the NEC and is
the responsibility of the installer. The transformerless design requires that the PV array
to be floating with respect to ground per NEC 690.35.
Power-One DOES NOT provide AC output overcurrent protection; it is the
responsibility of the end user to provide protection for the AC output circuit.
The AC grid wiring is connected through the inverter switchbox. Run an
approved raceway between inverter and external AC disconnect switch.
Make conduit entry through openings
B
or
E
shown in Figure 1. Connect
AC wiring to switch box terminal block J and the main AC ground cable to
switchbox terminal block
K
.
Table 1, (which is also found on a label in the switchbox), shows AC wiring
connections according to the AC grid type; connect wiring to the numbered
terminals based on selected grid type.
Size conductors per NEC Article 310; Use 90°C copper wire only.
Terminal block accommodates wire size range of 14-4 AWG.
Table 1: Grid standard
The default 240V-SPLIT-PHASE connection requires the grid Neutral to be connected
for proper operation.
Before connecting the inverter to the grid, the grid type must be selected if it differs
from the default 240V-SPLIT-PHASE setting. See Section 9 for instructions to change
the default.
* IMPORTANT: If several AURORA inverters are installed to a three-phase AC GRID,
always distribute the inverters between the phases in order to reduce power
imbalance between the phases. Always refer to the local standards.
PARALLEL TWO INPUTS WHEN:
The current from PV array exceeds 22 Adc or the array power exceeds limit for
single channel (section
14
). Refer to section
4
to access the switchbox wiring
and and connect raceway from the PV array conduits to the DC array. Place
switch S1 in the PAR position (UP) to configure inverter in parallel mode.
For -S versions only, in the switchbox
, parallel the two MPPT inputs of
terminal [–IN1 and –IN2] and [+IN1 and +IN2],using the two #10 AWG jumper
wires (provided with inverter), 1 black and 1 red, connecting the input as shown
in Figure 4.
For -A versions only, in the inverter box
, parallel the two MPPT inputs of
terminal [–IN1 and –IN2] and [+IN1 and +IN2] , using the two #10 AWG jumper
wires (provided), 1 black and 1 red, connecting the input as shown in Figure 5.
Input Mode Switch
S1 in PAR (UP)
position
TO STRING 1 TO STRING 2
Paralleling jumpers
required for
PARALLEL input
mode operation
-S version only
Paralleling jumpers required for
PARALLEL input mode operation
-A version only
Figure 4: Parallel connection of DC array
in the switchbox -S version
Figure 5: Parallel connection of DC array
in the inverter box -A version
S
R
Q
T
P
Label Inverter Connection Board Details
P
Input Mode Selector Switch S1
Q
External alarm Out Terminals
R
RS-485 Terminal Block*
S
RS-485 RJ45 Connector**
T
RS-485 Line Termination Resistor Switch S2
* REM-Remote control not available for -A model;
teR not accessible with AFD
** DO NOT CONNECT pin #4 when cabling units
with AFD installed.
Figure 6: Inverter connection board
Wiring for the RS-485 communication system and hardwired control options are routed through the
switchbox (openings
D
of Figure 1) and into the main inverter chassis for termination. Alarm and
monitoring connections are shown as items
Q
and
R
in Figure 6. If the terminal blocks are used, the
signal RTN, +T/R and –T/R have to be cabled.
RS-485 cable must be NRTL certified and provided
with additional protection by means of a non-
metallic tubing.
Use Belden #3106A (or eq.) cable for
the RS-485 signals (RTN, ±T/R); ensure the ±T/R pair is
connected through the cable twisted pair. Strip 1/4”
insulation from all wires and connect to terminal block
as indicated in Figure 7.
Figure 7: Signal wiring terminal block
Systems with multiple inverters require the RS-485 cable to be daisy chained inverter-to-inverter and
there will be up to two RS-485 cables entering the inverter.
If a daisy chain connection is required for AFD installed inverters (-A models) use standard
multiconductor RS-485 cable and connect the three RS-485 leads (-RTN, +T/R, -T/R) USING ONLY
THE TERMINAL BLOCK. Do not use RJ45 connectors with AFD installations.
Locate Switch S2 on the inverter
board (Figure 6, label
T
). Confirm
the switch is up in the OFF position
for every inverter in the chain
except for the last inverter, which
must be turned ON.
Last inverter in Daisy Chain needs to have the switch S2 pushed
down into the ON position (Termination resistor active).
The default position of the S2 switch in the OFF position.
Inverter default address is 2.
If multiple inverters are connected in a daisy chain, each unit must be assigned a different RS-485
address. Refer to section
9
for instructions to assign addresses using the display menu.
The sum total length for all the RS-485 lines in the system must be less than 1000m (~1100 yards).
Communications cabling must not be combined into the AC or DC power conduits; run these in a
separate conduit.
Using the mounting bracket as a template, locate and
mark the desired mounting location.
Mount bracket to wall using four screws (provided)
through holes
B
. Two additional screws can be used in
position
A
if necessary.
Orient the bracket so the hooks
C
face out and up.
Hang the inverter on the bracket by lifting up
and over the mounting plate, engaging the
brackets
C-D
and
E-F
on the back.
Secure chassis bottom using machine screw
and washer (provided) through center bottom
hole
H
, engaging threaded insert in the bracket
G
. Add additional screws as necessary through
bottom flange securing to mounting surface.
All -S and -A models have an integrated DC disconnect switch rated 600V/25A per contact. Maximum
array DC voltage input to each MPPT circuit is 600 Vdc under any condition.
The switch disconnects the DC current from the PV panels in the “OFF” position. The
inverter will stop producing power, but DOES NOT disconnect the AC from the grid.
Label
Description
A
DC conduit entry plastic
threaded plugs trade size 3/4”, 1”
B
AC conduit entry plastic
threaded plugs trade size 3/4”, 1”
C
DC Disconnect Switch
D
Signal cable opening with
plastic threaded plug, 1/2” trade
size
E
AC power cable opening with
plastic threaded plug; trade size 1”
F
DC power cable opening with
plastic threaded plug; trade size
3/4”, 1”
H
Cover screws (4)
J
AC grid output terminals, NOTE 1
K
AC main ground, NOTE 2
L
Array PE ground, NOTE 1
M
AFD board (
-A only
)
Figure 1: Switch and wiring box external/ internal view
MPPT1 and MPPT2 DC array input, Note 1
M
NOTE 1:
DC array wiring and ground
terminals are spring pressure type and
accommodate a wire size range of 16-6
AWG. AC output terminals are spring
pressure type and accommodate a wire
size range of 14-4 AWG.
NOTE 2:
AC ground terminals are spring
pressure type and accept 16-4 AWG wire.
Figure 2: Switch and wiring box with AFD mounted
on din rail -A model only (label M) AFD/ internal view
