ProHarvest PRO208-5k75 (HiQ TS208-5k75)

ProHarvest PRO208-5k75 (HiQ TS208-5k75)
ProHarvest PRO208-5k75
(HiQ TS208-5k75)
Inverter System
Installation & Safety Manual
ProHarvest Contact Information
Address:
Corporate Headquarters
17825 – 59th Avenue N.E.
Suite B
Arlington, WA 98223 USA
Website:
http://www.outbackpower.com
Disclaimer
PROHARVEST BY OUTBACK POWER:
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION. (b) ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT, CONSEQUENTIAL OR
INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH
INFORMATION WILL BE ENTIRELY AT THE USER’S RISK. (c) RESERVES THE RIGHT TO MAKE CHANGES TO THE
PRODUCTS AND INFORMATION CONTAINED IN THIS DOCUMENT WITHOUT NOTICE.
Notice of Copyright
ProHarvest PRO208-5k75 Inverter System Installation & Safety Manual ©2016 OutBack Power Technologies.
All Rights Reserved.
Trademarks
ProHarvest, the ProHarvest logo, the phrase “ProHarvest by Outback Power”, and OutBack Power are
trademarks owned and used by OutBack Power Technologies, Inc. HiQ, the HiQ logo, and TrueString are
trademarks owned and used by HiQ Solar, Inc. These trademarks may be registered in the United States and
other countries.
Date and Revision
Revision B, February 2017
Part Number
900-0203-01-00 Rev B
Table of Contents
Table of Contents .............................................................................................................................. 3
1.
Audience .................................................................................................................................... 5
2.
Safety ......................................................................................................................................... 5
2.1.
2.2.
3.
3.1.
Symbols Used .............................................................................................................................................. 5
General Safety Provisions, Warnings, and Precautions .............................................................................. 6
Introduction ............................................................................................................................... 7
System Overview ......................................................................................................................................... 7
ProHarvest 208V Inverter .................................................................................................................... 8
Communications Gateway .................................................................................................................. 8
4.
System Ordering & Part Number Identification .......................................................................... 9
5.
Design Guidelines..................................................................................................................... 11
5.1.
5.2.
5.3.
6.
6.1.
6.2.
6.3.
6.4.
6.5.
DC Stacking Ratio ...................................................................................................................................... 11
Notes on Location ..................................................................................................................................... 11
Inverter Placement ............................................................................................................................ 12
Gateway Placement .......................................................................................................................... 12
Notes on Wiring ........................................................................................................................................ 12
AC Cable ............................................................................................................................................ 12
Grounding .......................................................................................................................................... 13
Neutral............................................................................................................................................... 13
Use with a Transformer ..................................................................................................................... 13
Site Surge Suppression ...................................................................................................................... 13
Installation ............................................................................................................................... 14
Cautions..................................................................................................................................................... 14
Connection Outline ................................................................................................................................... 15
Basic Connection Procedure ..................................................................................................................... 15
More Detailed Installation Information .................................................................................................... 19
Meanings of Buttons & Indicators..................................................................................................... 19
Manufacturing Date .......................................................................................................................... 20
Gateway Information ................................................................................................................................ 21
Array Summary Screen Diagnostics .................................................................................................. 21
The Memory Card .............................................................................................................................. 21
Methods of Accessing System Information ....................................................................................... 22
Registering Inverters ......................................................................................................................... 22
Gateway Touch Screen Menu Structure ............................................................................................ 24
Gateway Web Page Menu Structure ................................................................................................. 25
Show or Hide Web Page Controls ...................................................................................................... 26
Arc Detection ..................................................................................................................................... 27
Utility Protective Function – Adjustable Limits ................................................................................. 28
PRO208V-5k75 Installation and Safety Manual
System Firmware Updates ................................................................................................................ 29
Gateway Access Inside a Local Network ........................................................................................... 30
Accessing the Gateway from Outside the Local Network — LAN-side configuration ....................... 31
Accessing the Gateway from Outside the Local Network – WAN-side configuration ....................... 33
7.
Troubleshooting ....................................................................................................................... 35
7.1.
7.2.
7.3.
7.4.
Overview of Possible Issues ...................................................................................................................... 35
If this issue was present, it would look like these symptoms ................................................................... 36
If these symptoms occur, it could be one of these causes ....................................................................... 37
Notes on Selected Issues ........................................................................................................................... 38
Inverter Button Indicator States ........................................................................................................ 38
Other Issues ....................................................................................................................................... 39
(A) Internet Connectivity Issues ......................................................................................................................... 39
(B) Gateway Memory Card Issues ..................................................................................................................... 40
(C) Gateway-to-Inverter Connectivity Issues ..................................................................................................... 40
(D) AC Wiring Issues .......................................................................................................................................... 40
(E) Inverter Installation Issues ........................................................................................................................... 41
(F) PV Module Wiring Issues .............................................................................................................................. 41
8.
8.1.
8.2.
8.3.
8.4.
8.5.
Specifications ........................................................................................................................... 42
Power System Specifications..................................................................................................................... 42
Communications Gateway Specifications ................................................................................................. 43
System UL 1741 Certificates ...................................................................................................................... 44
Unit Rating Label ....................................................................................................................................... 46
Physical Dimensions & Drilling Guides ...................................................................................................... 46
ProHarvest 208V Inverter .................................................................................................................. 46
Gateway ............................................................................................................................................ 48
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PRO208V-5k75 Installation and Safety Manual
1.
Audience
These instructions are for use by qualified electricians or other personnel. Qualified personnel must meet all
local and governmental code requirements for licensing and training for the installation of 3-phase electrical
power systems with AC and DC voltage up to 1000 volts. They must also be familiar with communication
networks. This will require knowledge of acquiring real-time and historical data via computers and other
external devices.
2.
Safety
IMPORTANT SAFETY INSTRUCTIONS – Please read
SAVE THESE INSTRUCTIONS
This manual contains important safety instructions for the ProHarvest 208V inverter system, composed of
inverter model PRO208V-5k75 and the Communications Gateway. These instructions shall be followed during
installation and maintenance of the inverter system. The inverter system is designed according to North
America safety requirements. As with any electrical equipment, certain precautions must be observed when
installing this equipment. To reduce the risk of personal injury and to ensure safe installation and operation,
carefully read and follow all instructions, cautions and warnings in this Installation Manual.
2.1.
Symbols Used
The following symbols describe situations or procedures or practices which if not correctly performed or
followed could result in damage or destruction of the described equipment or other components attached to
the described equipment, or personal injury.
Symbol
Description
CAUTION: Hazard to Equipment
This type of notation indicates that the hazard may cause damage to the equipment.
NOTE:
This type of notation indicates that the information provided is important to understanding the
operation and limits of the equipment. Failure to follow the recommendations in such a notation
could result in improper or failed operation.
The following symbols are used as markings on this product with the following explanations:
Symbol
Description
WARNING — DANGEROUS VOLTAGE
This product incorporates high voltages. All handling of and operation of this product should closely
follow the instructions included.
CAUTION — BEWARE OF HOT SURFACE
This product may become hot during operation. Contact should be avoided.
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2.2.
General Safety Provisions, Warnings, and Precautions

Connection of the system must be to a 3-phase AC source which is 208 Vac nominal only.

The ProHarvest 208V inverter is provided with DC circuit protection in accordance with the
requirements for ungrounded systems as outlined in NEC 690.35(C).

These systems meet the requirements of NEC 690.11 for DC arc-fault protection.

All electrical installations must be performed in accordance with all applicable local, state and national
requirements, including ANSI/NFPA 70.

Inverters must be provided with an equipment ground according to NEC 690.43.

All 5 circuits (L1, L2, L3, neutral, ground) must be connected and neutral must be bonded to earth
ground. Failure to do so can damage the unit and void the warranty.

The inverter components contain no user-serviceable parts. For all repair and maintenance always
contact an authorized dealer or installation partner.

The ProHarvest 208V inverter has inputs for two separate DC strings.
Reversal of polarity of one or both string inputs will irreparably damage the unit.

Before disconnecting DC cables, use a current clamp meter to measure the presence of current.
If current is present, cover the portion of the array affected (following NEC 690.18).

The inverter system is a utility-interactive system. Before connecting any solar power system to the
grid, contact the local utility company. This connection should only be made by qualified personnel.

PV arrays produce voltages that can present an electrical shock hazard. Wiring of PV arrays should be
performed by qualified personnel following all manufacturer's guidelines.

Be aware that the body of the inverter acts as a heat sink. Under normal operating conditions, the
temperature of the exterior of the enclosure can reach more than 15°C above ambient. Under
extreme conditions the exterior of the enclosures can reach a temperature of 80°C. To reduce risk of
burns, use caution when working with the inverter system.

Communications Gateway AC Connection Procedures
o
To connect: Plug the AC cable into the Gateway FIRST, then plug the other end into the wall outlet.
o
To disconnect: Unplug the cable from the AC wall outlet FIRST, then proceed to disconnect the
cable from the Gateway device.

In order to maintain the integrity of the watertight enclosures, all connectors must be properly and
fully engaged.

The utility connection can suffer from repeated disturbances depending on, atmospheric effects,
utility abnormalities, local loads, and the physical location. These disturbances can damage
equipment. It is recommended that an appropriate surge suppressor be installed near the point of
common connection with the utility.

Before installation, carefully read all instructions, cautions, and warnings in this manual.
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3.
Introduction
This instruction manual covers the ProHarvest 208V inverter system. A summary of features and functions
is shown in the table.
Item
Inverter
Grid voltage
208 Vac, Wye configuration
Nominal power
5.75 kW
Maximum Power Point Tracking, MPPT
Per individual string
Monitoring
Per individual string
NEMA6, waterproof
✓
Arc detection
✓
Hand-holdable
24 lb
Mounting orientation
Any
No electrolytic capacitors
✓
3.1.
System Overview
A typical layout is shown in Figure 1. Note that while the
Communications Gateway provides detailed reporting and
user control, it is optional. The system will generate power
without it.
The ProHarvest 208V is an easy-to-install, modular system
which is optimized specifically for commercial rooftop
ungrounded solar array applications. Unlike other string
inverters, each string is individually monitored and managed
by the inverter.
The main components of the inverter system are described
in the next section.
Figure 1: System overview showing
two strings of PV modules supplying a
single 208 Vac inverter.
ProHarvest 208V
Inverter
5.75 kWac
208 Vac, 3-phase 5-wire
120 Vac 1-phase
on its own breaker,
same circuit
Communications
Gateway
String
2
String
1
A Communications Gateway is shown
connected to one 120 Vac phase.
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PRO208V-5k75 Installation and Safety Manual
ProHarvest 208V Inverter
One inverter connects to up to two strings of PV modules, and in turn to
the 3-phase, 208 Vac compatible utility connection on the installation site.
The ProHarvest 208V inverter is shown in Figure 2. It is a non-isolated
inverter for use with ungrounded DC systems.
Figure 2: ProHarvest 208V Inverter
NOTE:
Multiple inverter outputs may be connected in parallel by a qualified electrician.
Communications Gateway
One Gateway module connects to a 120 Vac, 60 Hz branch that is connected to the
same 3-phase, 208 Vac compatible utility connection supplied by the inverter(s).
The Gateway module provides for system monitoring, logging and control.
The Gateway module is shown in Figure 3 and is designed for indoor use only.
Figure 3: Communications Gateway
NOTE:
Internet access should be provided to enable firmware updates and customer support functions.
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4.
System Ordering & Part Number Identification
A typical 5.75 kW system consists of:


1 ProHarvest 208V inverter
1 Communications Gateway which can be used with multiple inverters.
Inverter
Item
Part Number
Description
Inverter, 5.75 kW, 208 Vac
3-phase
ProHarvest:
Inverter with MC4-compatible connectors (1 each).
MPPT per string, monitoring per string. Includes
10-year limited warranty. Does not include Gateway
or AC cable. These items must be ordered separately.
PRO208-5k75
(HiQ: TS208-5k75)
Inverter, 5.75 kW, 208 Vac
3-phase with RS485
communication and Aux
connector
ProHarvest:
System Warranty Extension
to 25 years for 1 ProHarvest
208V inverter
ProHarvest:
208 Vac inverter AC Cable
CBL-208A-05
5 ft. Includes 208 Vac mating connector; the other end
is unterminated.
CBL-208A-15
15 ft. Includes 208 Vac mating connector; the other
end is unterminated.
CBL-208A-30
30 ft. Includes 208 Vac mating connector; the other
end is unterminated.
CBL-208A-50
50 ft. Includes 208 Vac mating connector; the other
end is unterminated.
TOOL-KIT-1
•
•
ProHarvest:
AC combiner splice box, NEMA4 enclosure. Includes
three gland fittings for up to three inverter AC cables.
Inverter AC cables must be ordered separately.
Connector Tool Kit
PRO208-5k75-AUX
(HiQ: TS208-5k75-AUX)
PRO208-5k75-W25
Must be ordered at time of system purchase. Includes
system Gateway(s).
(HiQ: TS208-5k75-W25)
PROSPL-60
(HiQ: ACSPL-60)
900-0203-01-00 Rev B
Inverter with MC4-compatible connectors (1 each).
MPPT per string, monitoring per string, RS485
communication and Aux connector. Includes 10-year
limited warranty. Does not include Gateway or AC
cable. These items must be ordered separately.
AC Connector Unlatching Tool (1 each).
MC4-Compatible Connector Unlatching Tool
(1 each).
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PRO208V-5k75 Installation and Safety Manual
Communications Gateway
Item
Part Number
Description
Communications Gateway
ProHarvest:
GW-A Communications Gateway 120 Vac (1 each).
Includes Ethernet Cable (1 each), memory card for logging
and storage of results, and 120 Vac power cable.
PROGW-A-120
(HiQ: GW-A-120)
Memory Card
MCRD-A
Storage for Gateway results. Generic SD card (model and
capacities supplied will vary).
Gateway Ethernet Cable
CBL-RJ45-6
RJ45 8P8C plug on each end.
Color and other details may vary.
Gateway AC Cable
900-0203-01-00 Rev B
CBL-GW120A-6
Gateway 120 Vac cable with AC Plug.
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PRO208V-5k75 Installation and Safety Manual
5.
Design Guidelines
5.1.
DC Stacking Ratio
The ratio of PV module STC power rating to inverter output power rating is often referred to as “Stacking
Ratio.” Most PV installations are designed for a stacking ratio greater than 1, and less than 1.5. However, the
only real limitation on stacking ratio for the inverter is the voltage and current limitations of the string inputs.
The full power Vmp range for the string inputs is 325 to 525 Vdc. The specified maximum short circuit current
of the DC source is 30A. Two strings with a Vmp of 525 Vdc and a short circuit current capability of 30A would
yield a stacking ratio of almost 8.9.
A more practical limitation is due to the power and current limits imposed by the inverter firmware. Input
power is limited to 3 kW and input current is limited to 10A per string by the firmware. The total of these two
strings exceeds the output power limit of 5.75 kW, so in reality something less than 3 kW would be harvested
from each string.
Ideal stacking ratio varies by installation. For the vast majority of installations, a stacking ratio between 1.25
and 1.5 makes perfect sense. Under some conditions (constant high irradiance) a lower stacking ratio may be
preferred. A stacking ratio of 1.1 to 1.25 typically allows for energy harvest loss factors such as less than ideal
module orientation, inverter efficiency losses, module soiling, module aging, etc. Nevertheless in some cases a
stacking ratio of 1.5 or greater can be advantageous. For example, in the northern hemisphere a north-facing
array or an east or west-facing array may justify a higher stacking ratio.
The system designer is responsible for specifying the string parameters to remain within the inverter ratings.
5.2.
Notes on Location
The ProHarvest 208V is suitable for flat, commercial rooftops, carports, ground mounts, and other commercial
installations. It may be placed using the self-ballasting metal casing, or alternatively may be attached to a PV
module frame or roofing component using the provided attachment mechanisms.
A line diagram is shown in Figure 4. Note that the inverter requires a 208 Vac Wye grid configuration.
208 Vac Wye only — neutral, ground, and three phases
ProHarvest 208V
208 Vac
Equipment
ground
PV String 1
120 Vac
Inverter AC cable
(5-foot to 50-foot
lengths available)
208 Vac
3ph grid
Dedicated
branch circuit
60A OCPD max
OCPD
OCPD
Additional
dedicated
branch circuits
OCPD
15A OCPD
Neutral, ground,
and one phase
Gateway
PV String 2
AC Splice
box
ProHarvest 208V
Up to three inverters
on a single 60A OCPD
Conductor is
a means of
AC disconnect
ProHarvest 208V
Conductor is a means of
DC disconnect
Equipment ground supplied
through AC connector
Figure 4: Example line diagram


Note that up to three inverters may be connected on the same branch to one 60A OCPD if desired.
A NEMA4 AC Splice junction box is available for use with three 208 Vac inverters if desired.
The following sections provide details on individual component placement guidelines and requirements.
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PRO208V-5k75 Installation and Safety Manual
Inverter Placement
The ProHarvest 208V inverter is NEMA6 rated and may be placed almost anywhere.
Cooling is most efficient if the unit is mounted vertically in the shade, bolted to
racking and with the connectors pointing downwards. However, any orientation
is acceptable. Ideal placement is at least 1” above the roof, and with 4 to 5”
clearance above the cooling fins to allow air to circulate.
Mounting hardware up to 5/16” will fit the baseplate
mounting slots.
Figure 5: Placement of the
ProHarvest 208V inverter
Gateway Placement
Internet access should be provided to enable firmware updates and customer support functions.

The Gateway is rated for indoor installation only. Do not expose it to rain, extreme temperatures, or
excessive dust. It must be mounted indoors. A utility closet or similar location physically close to the
inverter system is ideal. It must be electrically connected to one of the three AC phases used by the
inverter. Note that in large utility closets it is often easy to end up on an unrelated AC circuit
accidentally, in which case communications are unlikely to be successful.
CAUTION: Hazard to Equipment
The Gateway Device is not rated for outdoor installation.





Recommended: Add a 120 Vac outlet at the earliest entry point in the building to provide the best
power line communication (PLC) signal possible. Ideally this would be a 120 Vac outlet next to the
circuit breaker.
Gateway should be protected by a 15A OCPD.
A wired Ethernet network connection must be provided to the Gateway for proper data retrieval.
If outdoor placement is required, the Gateway must be housed in a weatherproof enclosure.
The Gateway has “keyhole” mountings on its baseplate. Each hole has a
guide-hole above. It is intended that these four holes provide a template for
mounting such that a pen or center punch can be inserted through and
marks left on the wall to help accurate drilling of holes. Mounting can be
performed using #8-sized screws.
Figure 6: Gateway baseplate
showing keyhole mounting
and drilling guide hole.
5.3.
Notes on Wiring
AC Cable
The inverter AC cable has a TC-ER rating. The “-ER” signifies that the cable is sufficiently rugged to permit its
use as exposed wiring, according to the NEC (section 336.10). Exposed wiring is wiring that is not installed in a
tray, conduit or other raceway. It must be secured every 6 feet or less and protected from physical damage.
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PRO208V-5k75 Installation and Safety Manual
Grounding
The metal enclosure of the inverter must be grounded according to NEC 690.43.
Equipment ground is provided through the AC connection. Optionally, grounding
may be achieved also through attaching an Equipment Ground Conductor (EGC) to
a lay-in lug (not provided) attached to the chassis as shown in Figure 7.
Grounding may also be achieved using the mounting bolts to any properly
grounded metallic structure provided a paint-cutting washer is employed, such as
a stainless steel star washer.
Figure 7: Example ground lug
Neutral
All 5 conductors (L1, L2, L3, neutral, ground) must be connected and neutral must be bonded to earth ground.
Failure to do so can damage the unit and void the warranty. Note that particular care is required to ensure
that an effective neutral connection is maintained when a transformer forms part of the installation.
The inverter exports power only on the “line” (hot) conductors. The neutral conductor is used solely for
voltage sensing and power line communications.
Use with a Transformer
While ProHarvest inverters may be used with a transformer, care must be taken to ensure proper wiring.
Utility connection
L1, L2, L3 Phases
(Primary)
Isolating
Transformer
L1, L2, L3 Phases
(208 Vac Secondary)
L1, L2, L3 Phases
(208 Vac)
Load Center
Neutral
Ground
Equipment Ground
Neutral Bar
Neutral
ProHarvest
Inverter
Ground Bar
Figure 8: Use of the ProHarvest with an isolating transformer
CAUTION: Hazard to Equipment
• Neutral MUST be bonded to equipment ground or damage to the inverter may result.
• When an isolating transformer is inserted into the circuit, the neutral may lose any
path to equipment ground that was provided elsewhere.
• Figure 8 shows an example where the load center bonds the neutral to equipment
ground. Many other system configurations and methods are also possible.
Site Surge Suppression
CAUTION: Hazard to Equipment
Depending on physical location, atmospheric effects, utility abnormalities, and local loads
the utility connection can suffer from repeated disturbances which can damage
equipment. It is recommended that an appropriate surge suppressor be installed near the
Point of Common Connection with the utility.
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6.
Installation
The ProHarvest 208V inverter employs industry standard connection methods. These include locking
interconnects for PV module attachment, and standard 5-lead, 3-phase AC wiring compatibility.
Careful adherence to these instructions is required.
6.1.
Cautions
Make certain to follow all instructions.
CAUTION: Hazard to Equipment
•
•
•
The system must be connected to 208 Vac 3-phase wye 5-wire only.
The inverter must be provided with an equipment ground per NEC 690.43.
All five circuits (L1, L2, L3, neutral, ground) must be connected and neutral
must be bonded to earth ground. Failure to do so can damage the unit and void
the warranty.
The ProHarvest 208V inverter has inputs for two separate DC strings. Reversal of
polarity of one or both string inputs will irreparably damage the unit. Use a
voltmeter to carefully verify that the DC inputs are correct before connecting to
the inverter DC inputs.
The Communications Gateway is for indoor use only.
In order to maintain the integrity of the watertight enclosures:
•
•
•
o
o
•
All connectors must be properly and fully engaged.
Unused connectors must be sealed using appropriate weatherproof caps.
Do not allow water to enter the AC or DC connectors or the warranty will be void.
WARNING: Shock Hazard
Before disconnecting DC cables, use a current clamp meter to measure the
presence of current. If current is present, cover the portion of the array affected,
according to NEC 690.18.
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6.2.
Connection Outline
Connection occurs in the following order:
1.
2.
3.
4.
Connect an equipment ground to the inverter. This should always be done first.
Connect the inverter to the grid.
Connect the Communications Gateway to the same 208 Vac circuit as the inverter and the network.
Connect the PV module strings to the inverter inputs.
Disconnection uses these steps in reverse, with system ground being the last item to be disconnected.
6.3.
Basic Connection Procedure
1. Ground the inverter.
Equipment ground is provided through the AC connection.
Optionally, a grounding lay-in lug (not supplied) may be used
(Figure 9), or the mounting method may be used if employing a
paint-cutting washer such as a stainless steel star washer.
Figure 9: Example ground lug
2. Connect the inverter to the grid.
(a) Connect the inverter to the AC system
in the usual way using the AC cable
(supplied separately). See Figure 10.
Any color
to any phase
This should only be carried out by
qualified personnel.
White to
Neutral
Figure 10: Wiring identification on
the inverter AC cable
Green to
Equipment
Ground
208 Vac 3-phase ONLY
NOTES
•
•
The unit is only watertight when connectors are fully engaged.
The inverter AC cables are TC-ER rated1.
WARNING: Dangerous Voltage
This product incorporates high voltages.
1
The “-ER” signifies that the cable is sufficiently rugged to permit its use as exposed wiring, by the National Electrical Code.
Exposed wiring is wiring that is not installed in a tray, conduit or other raceway.
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PRO208V-5k75 Installation and Safety Manual
(b) Mate the male and female AC
connector to connect the inverter to the
AC system.
Connection
Use the AC tool to disconnect the male
and female connectors. Follow steps 1
through 3 in the Disconnection section
of Figure 11.
Disconnection
Figure 11: Connecting and disconnecting of the
inverter AC connection
11
2
AC Tool
33
3. Connect the Communications Gateway.
CAUTION: Hazard to Equipment
The Gateway Device is rated for indoor installation only.
(a) The Gateway should be located indoors, as near to the inverter(s) as possible for reliable
communications. See Figure 12.
Figure 12: Wiring of the Communications Gateway
Gateway
208 Vac
3-phase
source
OCPDs
1 phase
(15A OCPD)
Neutral
Ground
Additional dedicated
branch circuits
Dedicated
branch circuit
ProHarvest 208V
inverter
Equipment
ground
Gateway 120 Vac cable
(sold separately)
CBL-GW120A-6
Up to 3
inverters
on single 60A
OCPD
Means of
AC disconnect
Means of DC
disconnect
3 phases
Inverter AC cable Neutral
(sold separately) Ground
Load Center
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PRO208V-5k75 Installation and Safety Manual
(b) Connect power to the Gateway using the
appropriate AC cable (Figure 13). Ethernet
may also be connected at this stage.
Figure 13: Making Gateway connections
Ethernet
Connection
(optional)
AC Connection
(c) Turn on power to the inverter.
On the Gateway screen, select the
Inverters tab A at the top of the screen
if the unit is not already on that tab.
Press <Setup>, then the <Discover>
button B.
A
The Gateway will search for all
inverters. Confirm that they indicate
Healthy status as shown in C.
C
Figure 14: Having the Gateway auto-discover added inverters
B
4. Connect the strings of PV modules.
Connection
This may be done with the AC source on or off.
This section assumes the source is off.


Do not reverse the polarity of the DC
inputs. This will cause irreparable damage
to the ProHarvest inverter.
All connectors must be fully mated to
ensure weatherproofing.
Use the DC tool to disconnect the male and
female connectors. Follow steps 1 and 2 in the
Disconnection section of Figure 15.
Disconnection
With the AC off but PV voltage present, the
inverter button will flash red and emit a short
audible beep, indicating a fault. (See Table 2
on page 20.) This is normal when utility grid is
not present.
1
2
Figure 15: Connecting and disconnecting MC4-compatible module connectors
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PRO208V-5k75 Installation and Safety Manual
5. Turn on the AC source.
This starts a 5-minute timer.
When it expires, each inverter will
perform a self-test and then begin
generating. During the wait period,
the inverter button will be solid
green. (See Table 2 on page 20.)
This does not apply if the system is
in the Off + Locked state.
The <Off + Unlock> button B will
unlock any inverters in the system.
An individual inverter may be
unlocked by pressing the inverter
button three times.
A
B
Figure 16: Power On and Unlock buttons
To skip the 5-minute wait, press the
<Power On> button A. The units will
self-test and then begin generating.
(See Table 2 on page 20 for the
LED indications of self-test.)
Once self-test has been successfully completed, power generation begins.
For individual inverters, check the
Gateway Strings screen using the
<Strings> button C to verify all items
indicate Healthy.
C
Figure 17: Verifying that all modules are operational using the Gateway
Connection is complete.
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6.4.
More Detailed Installation Information
Meanings of Buttons & Indicators
While most installations will use a Communications Gateway to control
and report, it is not mandatory. The inverter can be controlled using
the button, as illustrated in Table 1. A brief press-and-release of the
button counts as a button-push in the guide below. Indications given
by the button illumination are shown in Table 2.
Inverter Button Push
Button Indication
Result
1 press
•
Make inverter beep (“are you alive?”)
2 presses
•
•
Off & Locked (disabled)
Unit will not begin the 5-minute self-start
3 presses
•
•
•
Start generating immediately
If locked, unlock and generate immediately
If system is faulted, unit will unlock but
will not generate
Long press (>2 seconds)
•
•
“Alternate functions” mode
Ready to accept further button pushes;
this times out after 10 seconds
1 press (after long press)
•
Clear latched faults after (for example)
an arc-fault test or RCD (residual-current device)
test initiated a fault condition
3 presses (after long press)
•
RCD-test activation; successful operation of RCD
test should cause a fault condition (rapid red
flashing) until cleared
4 presses (after long press)
•
Arc-fault test activation; successful operation of
arc-fault detection should cause a fault condition
(rapid red flashing) until cleared
(Brief flash)
Table 1: Inverter button actions and results
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PRO208V-5k75 Installation and Safety Manual
Inverter Indicator State
Meaning
•
•
•
Powered up
Not generating
No faults
•
Power-on self-test
(will take <1 minute)
•
•
Powered up
Generating, no faults
Rapid Flash
•
•
Faulted
Example: arc has been detected
Mostly On
•
•
Off & Locked
Disabled
Mostly Off
•
•
Sleeping
Not generating
Solid
Left-right flash
Green Chaser
Table 2: Inverter indicator states and meanings
Manufacturing Date
The inverter and Gateway each have an individualized serial number label. An example is shown in Figure 18.
The first 4 letters are for device model code; this is followed by the 6-digit serial number (for example,
001003). The manufacturing date code is available in the QR code, readable with common smartphone
applications. The QR code will give the same information, appended with the date of manufacture, for
example, TSEA001003 1341, where 13 is the year (2013), and 41 the calendar week number.
TSEA001003
Figure 18: Example serial number label with QR code containing the manufacturing date
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6.5.
Gateway Information
This section covers common tasks and features associated with the Gateway.
Array Summary
Screen Diagnostics
A
Pressing the <Array> tab A brings up
the Array Summary screen. This screen
has four diagnostic indicators that are
normally shaded green as shown in
Table 3. These four items will be shaded
red if the Gateway detects an issue.
Figure 19: Status indicators on the Array Summary screen
Indication
Meaning
The Gateway's AC source is correct. For example: the neutral connection is
established, voltage is within tolerance, and no dangerous voltage spikes are present.
The SD card is inserted and the file system is working.
The network is connected. The cable connection is established and the Gateway has
acquired an IP address.
The Gateway was able to contact the server and upload data. The Indicator will be
yellow while the Gateway attempts to make contact.
Table 3: Meanings of green indications on the Array Summary screen
The Memory Card
The Gateway is supplied with a memory card to allow
long-term storage and retrieval of performance history.
Make certain that it is fully inserted, as some functions are
not available with the card not fully engaged. The card is
pre-formatted with the FAT32 file system and is ready to
be inserted into the Gateway as shown in Figure 20.
The Array Summary screen has an indication of the SD
card status as shown in Table 3. This indicator will turn
red if the card is not fully engaged.
No card
Card inserted
but not
engaged
Card
properly
engaged
Figure 20: Insertion of the memory card
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PRO208V-5k75 Installation and Safety Manual
Methods of Accessing System Information
An overview of ways to access
data is shown in Figure 21.
The Gateway gathers data
from inverters over a connected
power line. The Gateway
displays information on its
touch screen. With a suitable
Ethernet network connection, it
is capable of acting as a web
server, allowing a local
computer or a remote computer
with firewall access to see
system performance as it is
happening, displayed on a web
page. Data is also transferred to
servers to gather history, which
can be accessed remotely. More
details are given below.
LOCAL
ProHarvest
Gateway
WEB
Database
Power line
Local Ethernet network
Local device
External device
Real-time data
Historical data
Figure 21: Methods of accessing data
from inverters
Registering Inverters
The Communications Gateway is intelligent.
When required to discover ProHarvest inverters, it
will do so with just the press of a button.
Occasionally it may be preferable to manually
register inverters. This is also easy to achieve.
Both procedures are described beginning below.
A
6.5.4.1. Automatic Discovery of Inverters
The Gateway will search for any inverters in the
local area. On the Inverters tab the <Setup>
button A will open the Array Setup screen. Press
the <Discover> button B to search. In most cases
nothing else will be required. All available
inverters will appear on the list in Figure 22.
NOTE: If discovery occurred previously, the
Add Only box C is checked to speed up the
process. (Only new inverters will be discovered.)
Unchecking this box causes all inverters to
be rediscovered from scratch.
Automatic discovery of inverters may also be
achieved from the web interface as noted
in Figure 23(c).
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B
C
Figure 22: Automatic discovery of inverters
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PRO208V-5k75 Installation and Safety Manual
Button State
Meaning
Initial state.
Once pressed, a dark blue color indicates the Gateway is in the process of discovering inverters.
It will return to the initial state with an empty serial number list if no inverters are found.
A dark red color indicates an error was found. Examples: “signal strength is too low”; “too much
background noise on circuit”. The red color only clears when the user re-tries and the fault
condition no longer applies.
Once discovery has successfully occurred, the button returns to the original state.
Table 4: Meanings of <Discover> button colors
6.5.4.2. Manual Registration of Inverters
Manual registration is accomplished using either the touch screen or the web interface. Figure 23 depicts the
web interface. (This functionality is found under the top level of the Mini Inverters tab.) Manual registration
gives the ability to add (A) and delete (B) inverters as desired. It is particularly useful if an inverter is replaced
on a site where automatic discovery would take a long time.
Item C is used to enable automatic discovery of inverters.
A
A
B
C
B
Figure 23: Adding and removing inverters manually using the web interface
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Gateway Touch Screen Menu Structure
The following menu tree shows how different screens and functions are related and accessed.
Setup
Update
AC Health
Inverters
Strings
Diagnostic
DC Health
Detail
Info
Array
Network
Unlikely to need
in normal use
Clock
Gateway
Screen
PLC Diagnostics
Gateway Diagnostics
Special
Figure 24:
Gateway
touch screen
menu tree
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PRO208V-5k75 Installation and Safety Manual
Gateway Web Page Menu Structure
Main
Navigation
Menu
Overall
Array
Listed
Inverter
Summary for
each inverter
(See A)
(See B)
(See next page)
A
B
Figure 25: Array page and main inverter navigation
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PRO208V-5k75 Installation and Safety Manual
Figure 26: Gateway summary page (primarily for service use)
Show or Hide Web Page Controls
A valuable feature of the system is the ability to view and
control the system from a smartphone when local
computer network settings allow (see Section 6.5.11 on
page 30). Because phone screens are small, it might
sometimes be possible to accidentally activate or disable
functions inadvertently. To help avoid this, the Gateway
web page has a button for <Show Controls> (A) and <Hide
Controls> (B) near the top of some of the screens.
A
B
Figure 27: Showing or hiding controls
on the Gateway web page
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Arc Detection
These products meet the requirements of NEC 690.11. If a fault occurs, the inverter will shut itself down. It
will also indicate a fault with rapid red flashes of the inverter button. The web page and Gateway will also
show system fault flags. (See Figure 28.)
Note that power cycling of the system will not clear such a fault. It must be cleared using the procedure
outlined in Figure 28. A fault is cleared using either the Gateway touch screen or the web page.
Touch screen
2
1
Web page
Off
Faulted
1
On
2
Off
Figure 28: Arc fault indication and clearing procedures
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PRO208V-5k75 Installation and Safety Manual
Utility Protective Function –
Adjustable Limits
The ProHarvest 208V inverter system is capable of
operating beyond normal AC grid ranges when
required to do so by the operating utility company.
Changes in this area must only be carried out
with the express written permission of the
utility company, only setting values specified by the
utility company.
Changes are made through the web pages and cannot
be accessed from the Gateway touch screen. When
logged into a particular Gateway through the web
portal, type the following into the browser URL
address bar after the serial number:
‘/SAFETYLIMITS.htm’ (capitalization is important
here). An example is: http://hiqgty1020/SAFETYLIMITS.htm.
This will bring up the screen shown in Figure 29.
An individual serial number of an inverter on that
Gateway is entered into the Serial # field. Pressing
<Get> will cause communication with the particular
inverter. Its current values will populate in the
web page. When desired changes have been
completed, <Set> will write those values back to
that same inverter.
Available ranges are given in the Specifications table
of Section 8.1 near the end of this document.

Cycles are the number of 60 Hz cycles after the limit is
violated before the inverter turns off (Clearing Time).
Figure 29: Utility protective adjustments dialog box
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System Firmware Updates
System firmware is occasionally updated to add features and enhance reliability even further. Firmware
updates may be accomplished through a network connection or using a memory card physically inserted
into the card slot on the Gateway. Updates may be controlled through the Gateway touch screen or the
Gateway web page.
Touch screen
Web page
Example below where an update was initiated but the Gateway was unable to find a firmware file
through the network connection or from the memory card.
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PRO208V-5k75 Installation and Safety Manual
Gateway Access Inside a Local Network
The following sections may be useful for a company’s IT department.
Note that the Gateway’s default state is to be in DHCP mode. This is the easiest mode for local access inside
a network.
6.5.11.1.
Accessing Locally from a Windows Device
1. Looking at the Gateway unit, use the touch screen and select the Gateway tab. Scroll the display to see
the view below:
Figure 30: Gateway screen
showing the Net name and
IP address
2.
Open a web browser. Type into the address bar the NET NAME
(“HIQGTY-1120” in this example), or type in the listed IP address
(here 192.168.1.100, but this will vary)2. This will bring up the
web login screen. Unless otherwise altered, the following will
apply (case sensitive):
 Username: admin
 Password: HiQSolar
This will open the home screen for that particular Gateway which
should look like Figure 31.
Figure 31: Web interface for the Gateway
showing array statistics
6.5.11.2.
Accessing Locally from a Mac OS Computer or Device Including iPads & iPhones
Follow the instructions in 6.5.10.1. Note that NET NAME is not supported. The IP address will need to be
typed into the browser address line.
2
Note that this IP address is for the web page provided by the web server. The network connection the Gateway uses to communicate
to a local router is the one further down the list labeled GATEWAY (192.168.1.1 in this example).
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PRO208V-5k75 Installation and Safety Manual
Accessing the Gateway from Outside the Local Network — LAN-side configuration
DHCP has a lease time after which it requests renewal. This is problematic if it ends up with a different IP
address. A method must be used to make the IP address stay fixed. These methods include:
i)
ii)
Keep the Gateway in DHCP mode but force the router to allocate the same IP address each time. If
this is supported by the router it is generally the most desirable option.
Change to a fixed IP address.
Router capabilities and user interfaces vary. This example uses a particular Cisco router.
Ideally the Gateway would be left in DHCP mode, and the router configured to keep assigning the same
address. If this functionality is supported by the router it might look like Figure 32. In the figure it is labeled
DHCP Reservation.
Figure 32: DHCP
Reservation on the
example Cisco router
As can be seen in the above screenshot, the router has a defined range of 50 IP addresses it has reserved for
DHCP allocation, between 100 to 149 for the last field in the address. The DHCP Reservation screen allows
examination of the currently logged on devices, and the option of assigning an address in the allowed range
to the Gateway. Alternatively, an address can be assigned outside the DHCP range but the Gateway must also
be configured.
The screenshot of Figure 33 shows the DHCP reservation screen. In this example an address is assigned
outside the range (ending in “37”).
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Figure 33:
Assigning an IP
address outside
the router’s DHCP
reservation range
Having decided upon an IP address, the next step is to configure the Gateway.
On the touch screen of the Communications Gateway, select the Gateway tab, then press
the <Network> button. This will bring up the screen shown in Figure 34.
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PRO208V-5k75 Installation and Safety Manual
Figure 34: Network Setting
screen on the Gateway
The DHCP check box indicates current status. It also allows parameters
to be changed if DHCP is unchecked. When unchecked, the box looks like this:
Touching on one of the fields below the check box will activate it and allow changes to be made using the
on-screen keypad.
In general:



NET MASK (network sub mask) remains at 255.255.255.0 unless being used in certain large companies
that might use something different.
GATEWAY and PRI DNS (primary DNS) will be taken from the router screen.
SEC DNS (secondary DNS) usually remains at 0.0.0.0.
Accessing the Gateway from Outside the Local Network – WAN-side configuration
In the example of the Cisco router, opening up a port for outside communication is achieved through the
Applications & Gaming screen. (See Figure 35.) The intent is for communication to pass through the router,
although there will usually be some translation of port labels between what the Gateway expects and what is
presented to the outside world on the WAN side of the router.
There are 4 possible ports required to fully access the Gateway and inverters remotely. Access to the control
web page alone requires only the first of those listed in Table 5 to be set up.
Label
Function
External (Customerchangeable as required)
Internal (what the
Gateway expects to see)
HTTP
Allows access to the Gateway web page
8100
80
FTPC
FTP Control — allows access to the Gateway
memory card and logs
2100
21
FTPD
FTP Data — the return port for files requested
using FTPC to be transmitted through
8000
8000
Diagnostic — Low level system access
such as firmware updates for use by the
manufacturer only
1000
Diag
(Use this setting only)
1000
(Use this setting only)
Table 5: Port numbering assignments
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Figure 35: Port forwarding screen on the example Cisco router
Press the <Save Settings> button on the router page or else changes will be lost.
Note that not all routers offer port reassignment as described here. However, having different external
port numbers is not strictly necessary; it is suggested as an extra security precaution to avoid using the
well-known port assignments for web (80) and FTP (21) on the general Internet. The Gateway's web and FTP
servers are both password protected, so the risks are low. In a case where no port forwarding is available, the
Gateway direct port numbers (80, 21, 8000, 1000) would be used without specifying different external ports
for 80 and 21.
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7.
Troubleshooting
The primary troubleshooting method is to use the
Communications Gateway for indications of a problem. The
Gateway can be viewed using the touch screen interface on the
device, or accessing it using a web browser. Assuming the issue
is not with communications, browser access has the advantage
that a mobile device such as a phone can be used while
physically on the roof. As detailed later, the inverter has an
indicator light that will also provide insight.
The troubleshooting section is divided up as follows:




7.1.
Overview of possible issues (picture).
If this issue was present, it would look like these symptoms (table).
If these symptoms occur, it could be one of these causes (table).
More details on selected issues.
Overview of Possible Issues
Letters on the right (such as A) refer to issues and symptoms listed in sections 7.2 and 7.3.


Internet
Ports not configured correctly to outside world
Ethernet cable not connected or cable damaged
A
Memory Card



Router
Memory card missing
Memory card not properly engaged in Gateway
Memory card not formatted FAT32
B
Ethernet
LAN
120 Vac
single
phase




Load Center
208 Vac
3-phase Grid
Gateway not close enough to inverter
Gateway not connected to the same circuit
as the inverter
Filtering might be required to isolate local
Gateway from others
Inverter not grounded





ProHarvest
208V
Inverter
Figure 36: Possible
issues diagram
900-0203-01-00 Rev B
White wire not connected to neutral
(other colors can go to any phase except
ground [green])
Not connected to 208 Vac 3-phase
PV Module
String
C
D
Unused connectors not waterproofed
AC connector not fully engaged
Inverter may go outside
temperature range if not
bolted vertically to racking
E



F
Module connectors reversed
Module not connected
Module wiring damaged
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PRO208V-5k75 Installation and Safety Manual
7.2.
If this issue was present, it would look like these symptoms
Letters next to individual faults (such as D) refer to possible issues listed on page 35.
If this fault occurred, these symptoms would
be present ….
Gateway Touch
Screen
Web Interface
Inverter
Button
AC output of inverter not connected
to grid (D)
AC connector not fully engaged (D)
Missing figures in AC
part of display
As touch screen
Rapidly
flashing
red
One phase of AC Grid not
connected (D)
Neutral (white or grey) wire connected
to a phase instead of neutral (D)
One column of figures in
AC part of display
missing
•
Connected to wrong voltage system
(for example, 480 Vac 3-phase) (D)
Fault probably indicated
Other
•
Unterminated connectors allow
moisture to ingress (E), (F)
Fault indicated
PV
Module
•
•
PV module not connected (F)
PV module wiring fault (F)
Not treated as a fault —
missing statistics in
Panel figures
•
Arc fault detected and system shut
down (F)
System not generating,
fault indicated
System not
generating,
arc_fault
indicated
Red lights
rapidly
flashing
on
inverter
•
The Gateway is wired into an
unrelated AC circuit (C)
The Gateway is too far away from an
inverter (C)
The Gateway is the wrong side of
filtering on the AC circuit (C)
Neutral (white or grey) wire connected
to a phase (D)
Inverter not grounded (C)
No Ethernet connection (A)
•
No signal or
information
No information,
status Unknown
-
•
AC indicator on
Array Summary
screen shows red
•
Network router not configured
correctly (A)
HIQ indicator on
Array Summary screen
shows red (Gateway is
unable to contact
servers)
•
•
•
No memory card (B)
Memory card not fully engaged (B)
Memory card not formatted as FAT32
(B)
SD indicator on
Array Summary screen
shows red
AC Grid
•
•
•
•
Gateway
•
•
•
•
•
NET indicator on
Array Summary screen
shows red
-
Unable to
connect from
the web
interface
Retrieving long
term history not
possible
Table 6: Faults and consequent symptoms
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PRO208V-5k75 Installation and Safety Manual
7.3.
If these symptoms occur, it could be one of these causes
Letters next to individual faults (such as D) refer to possible issues listed on page 35.
Symptoms
Possible Causes
Inverter
Button
Indicator
Gateway Touch
Screen
Web
Interface
Button flashing
red quickly
Missing
information in AC
display
As touch
screen
-
•
•
AC output of inverter not connected to Grid (D)
AC connector not fully engaged (D)
Missing
information in AC
display
•
•
One phase of AC Grid not connected (D)
Connected to wrong voltage system
(for example, 480 Vac 3-phase) (D)
Fault condition
displayed
•
Moisture has been allowed into the system,
perhaps because unused connectors have been left
un-terminated (E) (F)
Missing PV Module
information
•
•
Missing PV module (F)
Faulty wiring or connectors not fully engaged (F)
Less power output
than expected
•
Inverter in direct sun and temperature range
exceeded, causing output to be reduced to
maximize lifetime (E)
SD indicator shows
red on Array
Summary screen
•
•
•
Memory card not fully engaged (B)
Memory card not formatted as FAT32 (B)
Memory card missing (B)
•
Gateway not connected to the same AC circuit as
the inverter(s) (C)
Gateway placed too far from the inverter(s) (C)
Filtering present on the grid interfering with
communication (C)
Neutral (white or grey) wire connected to a phase
(D)
Inverter not grounded (C)
AC indicator shows
red on Array
Summary screen
No
information
on the web
interface
•
•
•
•
NET indicator
shows red on
Array Summary
screen
•
•
Ethernet cable not connected (A)
Router external ports/ firewall not set up correctly
(A)
Table 7: Symptoms and possible causes
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PRO208V-5k75 Installation and Safety Manual
7.4.
Notes on Selected Issues
Inverter indicator button
Inverter Button Indicator States
If there is power to the inverter, the indicator on the inverter button
will be indicating something. As described earlier, these have the
following meanings and operations:
Inverter Button Push
Button Indication3
Result
1 press
•
Make inverter beep (“are you alive?”)
2 presses
•
•
Off & Locked (disabled)
Unit will not begin the 5-minute self-start
3 presses
•
•
•
Start generating immediately
If locked, unlock and generate immediately
If system is faulted, unit will unlock but
will not generate
Long press (>2 seconds)
•
•
“Alternate functions” mode
Ready to accept further button pushes;
this times out after 10 seconds
1 press (after long press)
•
Clear latched faults after (for example)
an arc-fault test or RCD (residual-current device)
test initiated a fault condition
4 presses (after long press)
•
Arc-fault test activation; successful operation of
arc-fault detection should cause a fault condition
(rapid red flashing) until cleared
(Brief flash)
Table 8: Inverter button functions and indicator meanings (repeat of Table 1)
3
Orientation may vary
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PRO208V-5k75 Installation and Safety Manual
Inverter Indicator State
Meaning
•
•
•
Powered up
Not generating
No faults
•
Power-on self-test
(will take <1 minute)
•
•
Powered up
Generating, no faults
Rapid Flash
•
•
Faulted
Example: “arc has been detected”
Mostly On
•
•
Off & Locked
Disabled
Mostly Off
•
•
Sleeping
Not generating
Solid
Left-right flash
Green Chaser
Table 9: Inverter button functions and indicator meanings (repeat of Table 2)
Other Issues
(A) Internet Connectivity Issues
i) No Ethernet connection
ii) Network router not configured correctly
iii) Router external ports/ firewall not set up correctly
The Array Summary screen on the Gateway has
four diagnostic indicators (A, B, C, and D).
Normally these four items are shaded green, but
will turn red if the Gateway detects an issue.
Table 3 on page 21 describes the normal status
for each indicator.
A
B
C
D
Figure 37: Status indicators on the
Array Summary screen
The SD indicator (item B in Figure 37) shows that there is a problem with the Gateway memory card.
This is described in the next section.
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(B) Gateway Memory Card Issues
i) No memory card
ii) Memory card not fully engaged
iii) Memory card not formatted as FAT32
Logging of long-term performance data is saved to the memory
card that was supplied with the Gateway. Note that the card is
not required for the system to operate, only to retain historical
information. If the card is in place but not fully engaged, the SD
indicator (item B in Figure 37) will turn red.
The card is formatted with the FAT32 file system. If a different
memory card than the one supplied is needed, it will need to be
formatted similarly. This can usually be achieved on a personal
computer. Consult the computer manual for details.
No card
Card inserted
but not
engaged
Card
properly
engaged
Figure 38: A memory card that is missing or not fully engaged
(C) Gateway-to-Inverter Connectivity Issues
i)
ii)
iii)
iv)
The Gateway is wired into an unrelated AC circuit
The Gateway is too far away from inverter(s)
The Gateway is the wrong side of filtering on the AC circuit
Filtering present on the utility grid interfering with communication
The Communications Gateway connects to local inverters using Power Line Communications (PLC). For
communication to work, the Gateway must receive a strong enough signal to exceed any line noise. It must be
on the same electrical circuit as the PV system. This is not always easy to establish in a typical company
electrical closet with many different circuits present.
Assuming the Gateway is on one phase of the correct PV system circuit, then issues are likely to arise if the
signal strength is low. Issues are also likely to arise if equipment between the Gateway and PV system is
interfering with or filtering the signal. In either case moving the Gateway closer to the PV system is likely to be
the best answer.
It is also possible that two Gateways (or other inverter control devices from other manufacturers nearby) are
interfering with each other. In this case an isolating filter to separate the inverter communications from the
outside world might be required.
Note that a failure to establish communications can also occur if the neutral (white or grey) wire is connected
incorrectly to one of the phases as discussed in the next section.
(D) AC Wiring Issues
i)
ii)
iii)
iv)
v)
AC output of inverter not connected to grid
AC connector not fully engaged
One phase of AC grid not connected
Neutral (white or grey) wire connected to a phase instead of neutral
Connected to wrong voltage system (480 Vac 3-phase)
900-0203-01-00 Rev B
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PRO208V-5k75 Installation and Safety Manual
The inverter automatically senses the phases connected to it. When wiring the system to the utility grid it
does not matter which of the red, blue or orange wires are connected to which phase. However, a fault
will appear if the neutral (white or grey) wire is connected to one of the phases. This is the same fault that
will appear if one of the three phases is disconnected. These conditions will not damage the inverter but
should be corrected.
If one of the phases is not connected, the web and touch screen views will show one of the AC phases faulted
rather than all three.
If the neutral is connected to one phase, the power line communications to the Gateway may not work.
Any color
to any phase
Figure 39: AC wiring scheme used for the
ProHarvest 208V Inverter
White to
Neutral
Green to
Equipment
Ground
208 Vac 3-phase ONLY
CAUTION: Hazard to Equipment
If the inverter is connected to the wrong voltage system, such as 480 Vac 3-phase,
damage is likely to result. The system will need to be returned to the factory.
(E) Inverter Installation Issues
i) Unterminated connectors allow moisture to ingress
ii) Inverter in direct sun and temperature range exceeded, causing output to be reduced due to high
internal temperatures. This protective feature helps to extend the lifetime of the inverter.
The inverter is NEMA6 rated and very robust. To maximize reliability and performance for the longest lifetime
it should be mounted vertically in the shade and bolted to metal racking if available. However, it can be
ballast-mounted in the shade. If the device is placed in a situation where it exceeds its rated temperature
range it will reduce output power slightly until it is safely back within the operating temperature range.
As with all such devices, NEMA6 waterproof operation requires that all connectors, whether used or unused,
be properly terminated. If this is not the case, moisture may ingress, causing the unit to eventually fail.
(F) PV Module Wiring Issues
i)
ii)
iii)
iv)
PV module not connected
PV module wiring fault
Faulty wiring or connectors not fully engaged
Missing PV module
These are generally self-explanatory issues of connectors not engaged or damaged wiring.
900-0203-01-00 Rev B
41
PRO208V-5k75 Installation and Safety Manual
8.
Specifications
8.1.
Power System Specifications
Inverter Specifications
DC Input (2 identical inputs)
Maximum open circuit voltage per String, VOC
Full power MPPT range, per string
PV start voltage
DC allowable stacking ratio (total, 2 inputs combined)
DC maximum input current, per DC input
DC maximum source short circuit current
DC maximum input source back feed current to input source
DC disconnect means
AC Output
AC maximum continuous output power to 45°C
AC de-rate with temperature, 45 to +65°C
AC nominal output current, per phase
AC maximum continuous output current, per phase
AC maximum output overcurrent protection
AC 3-phase system compatibility
AC voltage range, phase to phase (min / nominal / max)
AC voltage range, phase to neutral (min / nominal / max)
AC operating frequency range (min / nominal / max)
Power Factor
AC output waveform
AC lower frequency trip limit
Default
Adjustment
Clearing time default
Clearing time adjustment
AC upper frequency trip limit
Default
Adjustment
AC lower voltage trip limit
AC upper voltage trip limit
AC reconnect delay
Clearing time default
Clearing time adjustment
Default
Adjustment
Clearing time default
Clearing time adjustment
Default
Adjustment
Clearing time default
Clearing time adjustment
Default
Adjustment
1,000 Vdc
325 to 525 Vdc
200 Vdc
Must not exceed 8.9 under any circumstances4
10 A
30 A
0A
The DC connector has been evaluated and
approved for use as the load-break disconnect
required by the NEC5
5.75 kWac max
–102 W/°C
16.0 A
16.0 A
60 A
208 Vac Wye, 3 phases, neutral and ground
183 / 208 / 229 V (Limits adjustable, see below)
106 / 120 / 132 V (Limits adjustable, see below)
59.3 / 60 / 60.5 Hz (Limits adjustable, see below)
>0.98
True sine wave
59.3 Hz
+/- 0.1 Hz
57 to 59.8 Hz in 0.1 Hz increments
0.16 s
+/- 2 cycles
0.16 to 300 s
60.5 Hz
+/- 0.1 Hz
60.5 to 62.0 Hz in 0.1 Hz
increments
0.16 s
+/- 2 cycles
0.16 to 300 s
106 V
+/- 2 %
85 to 106 Vac
2s
+/- 2 cycles
1 to 20 s
132 Vac
+/- 2 %
132 to 144 Vac
1s
+/- 2 cycles
1 to 20 s
5 min
+/- 1 s
1 s to 10 min
4
Stacking: On the DC side of the inverter, each input limits at 3 kW and/or 10A. The combined total AC output is limited to 5.75 kW.
Higher DC STC string powers may be applied. The inverter will limit as described above. Total stacking for inverter must not exceed
8.9 under any circumstances.
5
NEC section 690.17, allowed by the exception of meeting requirements specified in 690.33.
900-0203-01-00 Rev B
42
PRO208V-5k75 Installation and Safety Manual
AC synchronization in-rush
current
Maximum output Fault current
and duration
AC minimum wire gauge for the
grid connection
AC disconnect means
0A
16 A, 0.5 ms
12 AWG
The AC connector has been evaluated and approved for use as the load-break
disconnect required by the NEC6.
Other Specifications
Peak efficiency
CEC efficiency
Weight
Operating temperature range
Power consumption standby/ night
Cooling
Communication
Environmental rating
Certification, inverter
Included warranty
8.2.
98%
97%
11 kg (24 lb)
–40 to +65oC (–40 to +150oF)
<4.5 W / <4.5 W
Natural convection, no cooling fan
Power Line Communication
Outdoor / rooftop, NEMA6, IP67
UL 1741 / IEEE 1547 (Utility Interactive), CSA C22.2 NO. 107.1,
FCC Part 157. Meets the requirements of NEC 690.11
10 Years, optionally extendable
Communications Gateway Specifications
Gateway Specifications
AC input voltage, min/nom/max
AC frequency, min/nom/max
Operating ambient temp range
Power consumption
Mounting, environmental rating
Memory card
Communication with inverter
LAN connection, Ethernet
Limited warranty
Compliance, certifications
Weight
6
106 / 120 / 132 V
59.3 / 60.0 / 60.5 Hz
–20 to +50°C
1.5 W typical (4 W max)
Indoor — NEMA 1
SD compatible, 4-32GB tested, FAT32 formatted
Proprietary Power Line Communication
10/100BASE, RJ45 8P8C modular plug
15 years, optionally extendable
UL 60950-1, CSA C22.2 No. 60950-1, FCC Part 157
1.3 lb
NEC section 690.17, allowed by the exception of meeting requirements specified in 690.33
7
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.
900-0203-01-00 Rev B
43
PRO208V-5k75 Installation and Safety Manual
8.3.
System UL 1741 Certificates
900-0203-01-00 Rev B
44
PRO208V-5k75 Installation and Safety Manual
900-0203-01-00 Rev B
45
PRO208V-5k75 Installation and Safety Manual
8.4.
Unit Rating Label
One of the following labels appears on the back of the unit baseplate.
8.5.
Physical Dimensions & Drilling Guides
ProHarvest 208V Inverter
267
mm
267
mm
(10
10½”)
½“
76 mm
3“
(3”)
405 mm
(16”)
16“
475 mm
(18
18¾”)
¾”
900-0203-01-00 Rev B
305 mm
12“
(12”)
334 mm
13 ⅛“
(13⅛”)
46
PRO208V-5k75 Installation and Safety Manual
475 mm (18 ¾”)
238 mm (9 ⅜”)
12.6 mm (½”)
12.6 mm (½”)
12.6 mm (½”)
12.6 mm (½”)
334 mm (13 ⅛”)
ProHarvest Inverter Front
305 mm (12”)
305
mm, 12”
450mm,
mm (17
¾”)
450
17¾”
TrueString
Inverter,
Front
ProHarvest
208V
Inverter,
Front
ProHarvest
208V
Inverter,
Front
Drilling
DrillingGuide
Guide
Drilling
Guide
Accepts
moun
ng hardware
up totoand
including
8 8mm,
5/16”
Accepts
mounting
hardware
and
including
mm
(5/16”)
Accepts
mounting
hardware
upup
to and
including
8 mm
(5/16”)
225 mm
(8 7/8”)
225
mm,
8⅞”
900-0203-01-00 Rev B
225mm,
mm (88⅞”
7/8”)
225
47
PRO208V-5k75 Installation and Safety Manual
Gateway
121 mm
4 ¾”
38 mm
1 ½”
101 mm
4”
140 mm
5 ½”
190 mm
5 ½”
165mm,
mm6(6½”
½”)
165
64 mm
½”) 2 ½”
64(2mm,
Drilling
Drilling
template
template
guide holes
guide
Gateway,
Gateway,
Front
Drilling
Guide
Front
Ø8.9
4.8mm
mm
Ø4.8
8.9mm
mm
Suitable
for #8
Suitable
forscrew
#8 screw
Corporate Headquarters
17825 – 59th Avenue N.E.
Suite B
Arlington, WA 98223 USA
900-0203-01-00 Rev B
http://www.outbackpower.com
48
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