APsystems YC1000-3 3-Phase Instruction Manual

APsystems YC1000-3 3-Phase Microinverter
(For Brazil)
Installation / User Manual
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ALTENERGY POWER SYSTEM Inc.
latam.APsystems.com
APsystems Guadalajara:
AV. Lazaro Cardenas 2850-5º Piso, Colonia Jardines del Bosque
P. 44520, Guadalajara, Jalisco
TEL: 52 (33) -3188-4604 EMAIL: [e-mail]

APsystems YC1000-3 Installation/User Manual
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Table of Contents
Important Safety Instructions...................................................................................................2
Radio interference statement.................................................................................................................... 2
Safety Instructions......................................................................................................................................... 3
Symbols replace words on the equipment, on a display................................................................. 4
APsystems YC1000-3 System Introduction.........................................................................5
APsystems Three-phase Microinverter YC1000-3............................................................ 7
APsystems Microinverter System Installation.................................................................... 8
Additional Installation components from APsystems...................................................................... 8
Required Parts and Tools from you.........................................................................................................8
Installation Procedures................................................................................................................................. 9
Step 1 - Lay the AC bus according to the arrangement of APsystems Microinverter... 9
Step 2 - Attaching the APsystems Microinverters to the Racking....................................... 9
Step 3 - Connecting the APsystems Microinverter AC Cables to the AC bus cable... 10
Step 4 - Connecting APsystems Microinverters to the PV Module....................................11
Step 5 - Install a Bus Cable End Cap at the end of AC bus cable...................................... 11
Step 6 - Installing the AC Branch Circuit Junction Box..........................................................12
Step 7 - Completing the APsystems Installation Map.............................................................13
APsystems microinverter system operating instructions .................................................. 14
Troubleshooting...........................................................................................................................15
Status Indications and Error Reporting................................................................................................15
Troubleshooting a non-operating APsystems Microinverter........................................................ 16
Replace a microinverter............................................................................................................ 17
Technical Data.............................................................................................................................. 18
YC1000-3 3-Phase Microinverter Datasheet...................................................................................... 19
ABNT NBR 16149:2013; ABNT NBR 16150:2013;.................................................................................19
Wiring Diagram............................................................................................................................ 20
Sample Wiring Diagram - 127V/220V Three Phase.......................................................................... 20
Sample Wiring Diagram - 220V/380V Three Phase........................................................................ 21
YC1000-3 Accessory.................................................................................................................. 22
Wiring Diagram............................................................................................................................................. 22
Accessories Summary.................................................................................................................................23

APsystems YC1000-3 Installation/User Manual
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Important Safety Instructions
This manual contains important instructions to follow during installation and maintenance of
the APsystems Photovoltaic Grid-connected Inverter (Microinverter). To reduce the risk of
electrical shock and ensure the safe installation and operation of the APsystems Microinverter,
the following symbols appear throughout this document to indicate dangerous conditions
and important safety instructions.
SAVE THESE INSTRUCTIONS! This manual contains important instructions for models
YC1000-3-220 that must be followed during Installation and maintenance of the Photovoltaic
Grid-connected Inverter.
Specifications subject to change without notice - please ensure you are using the most recent
update found at www.APsystems.com
This indicates a situation where failure to follow instructions may cause a serious
hardware failure or personnel danger if not applied appropriately. Use extreme caution
when performing this task.
This indicates information that is important for optimized Microinverter operation.
Follow these instructions closely.
Pollution degree 1 ：no pollution or only dry, non-conductive pollution occurs. The
pollution has no influence.
Radio interference statement
The equipment could radiate radio frequency energy and this might cause harmful
interference to radio communications if not following the instructions when installing and
using the equipment. But there is no guarantee that interference will not occur in a particular
installation. If this equipment causes harmful interference to radio or television reception,
the following measures might resolve the issues:
A) Relocate the receiving antenna and keep it well away from the equipment.
B) Consult the dealer or an experienced radio / TV technical for help.Changes or
modifications not expressly approved by the party responsible for compliance may void the
user’s authority to operate the equipment.

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Important Safety Instructions
Safety Instructions
Do NOT disconnect the PV module from the APsystems Microinverter without first
disconnecting the AC power.
Only qualified professionals should install and/or replace APsystems Microinverters.
Perform all electrical installations in accordance with local electrical codes.
Before installing or using the APsystems Microinverter, please read all instructions and
cautionary markings in the technical documents and on the APsystems Microinverter
system and the solar-array.
Be aware that the body of the APsystems Microinverter is the heat sink and can reach a
temperature of 80°C. To reduce risk of burns, do not touch the body of the Microinverter.
Do NOT attempt to repair the APsystems Microinverter. If it fails, contact APsystems
Customer Support (61 (0)2 8034 6587) to obtain an RMA number and start the
replacement process. Damaging or opening the APsystems Microinverter will void the
warranty.
Do NOT expose the connection to directed, pressurized liquid (water jets, etc.).
Do NOT expose the connection to continuous immersion.
Do NOT expose the AC connector to continuous tension (e.g., tension due to pulling or
bending the cable near the connection).
Use only the connectors and cables provided.
Do NOT allow contamination or debris in the connectors.
Use the cable and connectors only when all parts are present and intact.
Use the terminator to seal the conductor end of the Engage Cable; no other method is
allowed.

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Important Safety Instructions
Symbols replace words on the equipment, on a display
Dangerous electrical voltage
This device is directly connected to public grid, thus all work to the
inverter shall only be carried out by qualified personnel.
NOTICE, danger!
This device directly connected with electricity generators and public grid.
Danger of hot surface
The components inside the inverter will release a log of heat during
operation, DO NOT touch aluminum housing during operating.
An error has occurred
Please go to Chapter 10 “Trouble Shooting” to remedy the error.
Qualified
personnel
Person adequately advised or supervised by an electrically skilled person
to enable him or her to perceive risks and to avoid hazards which
electricity can create. For the purpose of the safety information of this
manual, a "qualified person" is someone who is familiar with requirements
for safety, refrigeration system and EMC and is authorized to energize,
ground, and tag equipment, systems, and circuits in accordance with
established safety procedures. The inverter and endues system may only
be commissioned and operated by qualified personnel.

APsystems YC1000-3 Installation/User Manual
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APsystems YC1000-3 System Introduction
The APsystems Microinverter is used in utility-interactive grid-tied applications, comprised of
three key elements:
APsystems Microinverter
APsystems Energy Communication Unit (ECU)
APsystems Energy Monitor and Analysis (EMA) web-based monitoring and analysis
system
Branch J-box
Ground
Neutra l
Me te r
AC Dis tribution Pa ne l
PV
Module
PV
Module
M ic ro in v e rte r
ECU
Figure 1

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APsystems YC1000-3-220 System Introduction
This integrated system improves safety; maximizes solar energy harvest; increases system
reliability, and simplifies solar system design, installation, maintenance, and management.
APsystems Microinverters maximize PV energy production
The APsystems microinverter ensures top performance from the array by maximizing the
performance of the module within the array when PV modules in the array are affected by
shading.
More reliable than centralized or string inverters
The distributed microinverter system ensures that no single point of system failure exists
across the PV system. APsystems microinverters are designed to operate at full power at
ambient temperatures of up to +65°C (+149° F). The inverter housing is designed for outdoor
installation and complies with the IP67 environmental enclosure rating.
Simple to install
You can install individual PV modules in any combination of module quantity, orientation,
different type and power rate (check on-line module compatibility or contact APsystems).
Smart system performance monitoring and analysis
The APsystems Energy Communication Unit (ECU) is installed by simply plugging it into any
wall outlet and providing it with an Ethernet or Wi-Fi connection to a broadband router. After
installing and setting the ECU (see ECU manual), the full network of APsystems
Microinverters automatically reports to the APsystems Energy Monitor and analysis (EMA)
web server. The EMA software displays performance trends, informs you of abnormal events,
and controls system shutdown when it is needed. Reference the ECU Manual for installation
and operation instructions.

APsystems YC1000-3 Installation/User Manual
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APsystems Three-phase Microinverter YC1000-3
The APsystems YC1000-3 Microinverters connect with the Three-phase grid, and operate
with most 60, 72, 84 and 96 cell PV modules. For more information, please see the Technical
Data page (p.18) of this manual, or sign in APsystems website to obtain a solar panel list
which can match with APsystems Microinverters: www.APsystems.com
Model Number
AC grid
PV Module
Module Connector
YC1000-3-220
127V/220V
60,72,84,
96 Cell
MC-4 Compatible or
Customize
YC1000-3-380
220V/380V
60,72,84,
96 Cell
MC-4 Compatible or
Customize

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APsystems Microinverter System Installation
A PV system using APsystems Microinverters is simple to install. Each Microinverter easily
mounts on the PV racking, directly beneath the PV module(s). Low voltage DC wires connect
from the PV module directly to the Microinverter, eliminating the risk of high DC voltage.
Installation MUST comply with local regulations and technical rules.
Special Statement! An AC GFCI device should not be used to protect the dedicated circuit
to the APsystems microinverter even though it is an outside circuit. None of the small GFCI
devices (5mA-30 mA) are designed for back feeding and will be damaged if back feed. In a
similar manner, AC AFCIs have not been evaluated for back feeding and may be damaged if
back feed
with the output of a PV inverter.
1Perform all electrical installations in accordance with local electrical codes.
2Be aware that only qualified professionals should install and/or replace
APsystems Microinverters.
3Before installing or using an APsystems Microinverter, please read all instructions
and warnings in the technical documents and on the APsystems Microinverter
system itself as well as on the PV array.
4Be aware that installation of this equipment includes the risk of electric shock.
5Do not touch any live parts in the system, including the PV array, when the
system has been connected to the electrical grid.
6Electrical Installation & Maintenance shall be conducted by licensed electrician
and shall comply with national wiring rules.
Strongly recommend to install Surge protection Devices in the dedicated meter box.
Additional Installation components from APsystems
Bus Cable End Cap(sold separately)
Bus Cable T-CONN Cap (sold separately)
Required Parts and Tools from you
In addition to your PV array and its associated hardware, you will need the following items:
An AC connection junction box
Mounting hardware suitable for module racking
Sockets and wrenches for mounting hardware
Continuous grounding conductor and grounding washers
A Phillips screwdriver
A torque wrench

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Installation Procedures
APsystems Microinverters are designed to only operate when they can sense power coming
from the grid. Even if they are plugged into the solar array, they will not turn themselves on
until they can read power from the grid.
Do NOT connect APsystems Microinverters to the utility grid or energize the AC circuit
until you have completed all of the installation procedures as described in the following
sections.
Step 1 - Lay the AC bus according to the arrangement of APsystems
Microinverter
Step 2 - Attaching the APsystems Microinverters to the Racking
Figure 2
a. Mark the location of the Microinverter on the rack, with respect to the PV module
junction box or any other obstructions.
b. Mount one Microinverter at each of these locations using hardware recommended by
your module racking vendor.
Prior to installing any of the microinverters, verify that the utility voltage at the point of
common connection matches the voltage rating on microinverter label.
Do not place the inverters (including DC and AC connectors)Where exposed to the sun,
rain or snow, even gap between modules. Allow a minimum of 3/4’’(1.5cm.) between
the roof and the bottom of the Microinverter to allow proper air flow.

APsystems YC1000-3 Installation/User Manual
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Installation Procedures
Step 3 - Connecting the APsystems Microinverter AC Cables to the
AC bus cable
Figure 3
Cover all unused T connectors with Bus Cable T-CONN Cap to protect the T connectors.
Figure 4
AC connector interface as follows, from left to right PE, N, L3, L2, L1.
Figure 5
PE N L3 L2 L1
Click

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Installation Procedures
Step 4 - Connecting APsystems Microinverters to the PV Module
Place the PV modules into position on the racking and connect the DC input cables to the
microinverters based on optimum layout configuration (up to four PV modules per
microinverter).
CH4 CH3 CH2 CH1
Figure 6
The status LED for on each microinverter will blink green three (3) times to indicate
normal operation once DC power is applied.It is important to understand that this “start
up” sequence occurs once the first module is connected to the microinvert and is
successfully generating DC power. The “start up” sequence does NOT reoccur as
additional modules are connected to the same microinverter.
Step 5 - Install a Bus Cable End Cap at the end of AC bus cable
a．Wire stripping
b．Set the parts on the cable.
c．Insert five wires into the core wires hole of the
body.
d．Insert seal and Clamp Finger into the body ,then
tighten the nut, torque 2.5±0.5NM.
Figure 7

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Installation Procedures
Step 6 - Installing the AC Branch Circuit Junction Box
Figure 8
a. Install an appropriate junction box at a suitable location on the PV racking system
(typically at the end of a branch of modules).
b. Connect the open wire end of the AC bus cable into the junction box using an
appropriate gland or strain relief fitting.
c. Wire the conductors of the AC bus: L1- BROWN; L2 - BLACK; L3 - GRAY; N - LIGHT
BLUE; PE – YELLOW GREEN.
d. Connect the AC branch circuit junction box to the point of utility Interconnection.
The neutral line from the inverter is NOT allowed to be floating, MUST be connected
to grid.
Wiring colour code can be different according local regulation, check all the wires of
the installation before connecting to the AC bus to be sure they match.Wrong cabling
can damage irreparably the microinverters, such an issue is not covered by the
warranty.
Double check to make sure all of the AC and DC wiring has been correctly installed.
Ensure that none of the AC and/or DC wires are pinched or damaged. Make sure that
all of the junction boxes are properly closed.

APsystems YC1000-3 Installation/User Manual
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Installation Procedures
Step 7 - Completing the APsystems Installation Map
Fill in the APsystems Warranty Cards, which provide system information and the installation
map. Feel free to provide your own layout if a larger or more intricate installation map is
required. The layout map provided is designed to accommodate labels in vertical or
horizontal orientation to meet all the field PV connections.
a. Each APsystems microinverter has removable serial number labels. Peel labels off,
and affix one to the respective location on the APsystems installation map, and affix
another to the PV module frame which is easy to see.The warranty cards can be
obtained from the appendix of this manual or APsystems website:
www.APsystems.com
b. Fill out the warranty cards and email to APsystems at [e-mail].
c. Register the system using your Installer Account on the APsystems EMA. You can
then use the EMA website to view detailed performance of the PV system.
Figure 9
1. Step 1～7 can change sequence for convenience of installation.
2. Installation card is located in Appendix last page of this manual.

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APsystems microinverter system operating instructions
To operate the APsystems microinverter PV system:
1. Turn ON the AC circuit breaker on each microinverter AC branch circuit.
2. Turn ON the main utility-grid AC circuit breaker. Your system will start producing power
after a five-minute safety delay period.
3. The APsystems Microinverters will start to send performance data over wireless to the
ECU.The time required for all the microinverters in the system to report to the ECU will
vary with the number of microinverters in the system. You can verify proper operation of
the APsystems Microinverters via the ECU. See the ECU Installation and Operation
Manual for more information.

APsystems YC1000-3 Installation/User Manual
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Troubleshooting
Qualified personnel can use the following troubleshooting steps if the PV system does not
operate correctly:
Status Indications and Error Reporting
Start up LED
Three (3) short green blinks, when DC power is first applied to the microinverter, indicates
a successful microinverter start up. It is important to understand that this “start up”
sequence occurs once the first module is connected to the microinvert and is successfully
generating DC power. The“start up” sequence does NOT reoccur as additional modules are
connected to the same microinverter.
Operation LED
Flashing Slow Green (10 sec. gap) - Producing power and communicating with ECU
Flashing Fast Green (2 sec. gap) - Producing power and not communicating with ECU over
60 minutes
Flashing Red - Not producing power
Steady Red - Electrode assembly ground fault protection
Other Faults
All other faults are reported to the ECU. Refer to the ECU Installation and Operation
Manual for a list of additional faults and troubleshooting procedures.
Only qualified personnel should directly handle the APsystems microinverter.
1Never disconnect the DC wire connectors under load. Ensure that no current is
flowing in the DC wires prior to disconnecting. An opaque covering may be used
to cover the module prior to disconnecting the module.
2Always disconnect AC power before disconnecting the PV module wires from the
APsystems microinverter.
3The APsystems microinverter is powered by PV module DC power. Make sure you
disconnect and reconnect the DC connections to watch for the three short LED
flashes indicating start up.

APsystems YC1000-3 Installation/User Manual
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Troubleshooting
Troubleshooting a non-operating APsystems Microinverter
To troubleshoot a non-operating APsystems Microinverter, Follow the steps
below in order:
1. Verify the utility voltage and frequency are within ranges shown in the Technical Data
section of this manual.
2. Check the connection to the utility grid. Verify utility power is present at the inverter
in question by removing AC, then DC power. Never disconnect the DC wires while
the microinverter is producing power. Re-connect the DC module connectors and
3. watch for three short LED flashes.
4. Check the AC branch circuit interconnection between all the microinverters. Verify
each inverter is energized by the utility grid as described in the previous step.
5. Make sure that any AC breaker are functioning properly and are closed.
6. Check the DC connections between the microinverter and the PV module.
7. Verify the PV module DC voltage is within the allowable range shown in the Technical
Data of this manual.
8. If the problem persists, please call APsystems Technical Support.
Do not attempt to repair the APsystems microinverter. If troubleshooting methods fail,
please call APsystems Customer Support.

APsystems YC1000-3 Installation/User Manual
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Replace a microinverter
Qualified personnel can use the following troubleshooting steps if the PV system does not
operate correctly:
Follow the procedure to replace a failed APsystems Microinverter
A. Remove the APsystems microinverter from the PV Module, in the following order:
1. Disconnect the AC by turning off the branch circuit breaker.
2. Cover the module with an opaque cover.
3. Disconnect the first AC connector in the branch circuit.
4. Disconnect the PV module DC wire connectors from the microinverter.
5. Remove the Microinverter from the PV array racking.
B. Remove the opaque cover, install a replacement Microinverter to the rack. Remember to
observe the flashing LED light as soon as the new Microinverter is plugged into the DC
cables.
C. Connect the AC cable of the replacement Microinverter.
D. Close the branch circuit breaker, and verify operation of the replacement Microinverter.

APsystems YC1000-3 Installation/User Manual
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Technical Data
1Be sure to verify the voltage and current specifications of your PV module match
with those of the Microinverter. Please refer to the datasheet or usermanual which
can be download from APsystems website www.APsystems.com.
2You must match the DC operating voltage range of the PV module with the
allowable input voltage range of the APsystems Microinverter.
3The maximum open circuit voltage of the PV module must not exceed the
specified maximum input voltage of the APsystems microinverter.

APsystems YC1000-3 Installation/User Manual
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YC1000-3 3-Phase Microinverter Datasheet
Region
Brazil
Input Data (DC)
MPPT Voltage Range
16V-55V
Operation Voltage Range
16V-55V
Maximum Input Voltage
60V
Startup Voltage
22V
Maximum Input Current
14.8A x 4
Output Data (AC)
127V/220V
220V/380V
3-Phase Grid Type
127V/220V
220V/380V
Rated Output Power
900W
900W
Maximum Output Power
1130W
1130W
Maximum Output Current
2.97A×3
1.36A×3
Nominal Output Voltage/Range
127V×3/101.6V-139.7V*
220V×3/176V-242V*
Adjustable Output Voltage Range
82V-152V
149V-278V
Nominal Output Frequency/Range
60Hz/57.5Hz-62Hz*
60Hz/57.5Hz-62Hz*
Adjustable Output Frequency Range
55.1Hz-64.9Hz
55.1Hz-64.9Hz
Power Factor
>0.99
>0.99
Total Harmonic Distortion
<3%
<3%
Maximum Units per Branch
5units per 20AX3 AC breaker/
7units per 25AX3 AC breaker**
9units per 20AX3 AC breaker/
11units per 25AX3 AC breaker**
Efficiency
Peak Efficiency
95.5%
CEC Weighted Efficiency
95%
Nominal MPPT Efficiency
99.9%
Night Power Consumption
300mW
Mechanical Data
Operating Ambient Temperature Range
-40 oC to +65 oC
Storage Temperature Range
-40 oC to +85 oC
Dimensions (W x H x D)
259mm x 242mm x 36mm
AC BUS Maximum Current
20A(2.5mm²)
Weight
3.8kg
Enclosure Rating
IP67
Cooling
Natural Convection - No Fans
Maximum Altitude rating
All Data At This Technical Specifications Has Been Tested Under
<2000m
Features
Communication
Wireless
Compliance
ABNT NBR 16149:2013; ABNT NBR 16150:2013;
ABNT NBR IEC 62116: 2012
Transformer Design
High Frequency Transformers, Galvanically Isolated
*Programmable through ECU in field to meet customer need.
* *Depending on the local regulations.
2020/09/01 REV1.0
Specifications subject to change without notice - please ensure you are
using the most recent update found at latam.APsystems.com
©All Rights Reserved