APsystems YC600B Solar Microinverter User Manual

APsystems YC600B Solar Microinverter User Manual

Important Safety Instructions

This manual contains important instructions to follow during installation and maintenance of the A systems Photovoltaic Grid-connected Inverter (Micro inverter). To reducetherisk of electrical shock and ensure the safe installation and operation of the A systems Micro inverter, the following symbols appear throughout this document to indicate dangerous conditions and important safety instructions Specifications subject to change without notice- please ensure you are using the most recent update found at www.APsystems.com.

Warning

Notice

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
• Perform all electrical installations in accordance with local electrical codes
• Before installing or using the APsystems Microinverter, please read all instructionsandcautionary markings in the technical documents and on the APsystems Microinvertersystem and the solar-arr
• Be aware that the body of the A systems Micro inverter is the heat sink andcanreachatemperature 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 APsystem Customer Support to obtain an RMA number and start the replacement process. Damaging or opening the APsystems Microinverter will void the warranty.
• Caution! The external protective earthing conductor is connected to the inverter protectiveearthing terminal through AC connector. When connecting, connect the ACconnectorfirst to ensure the inverter earthing then do the DC connections. When disconnecting, disconnect the AC by opening the branch circuit breaker first but maintain the protective ear thing conductor in the branch circuit breaker connect to the inverter ,tend is connect the DC inputs
• Please install AC breakers on the AC side of the inverter
• CAUTION – Hot surfaces – To reduce the risk of burns – Do not touch. Risk of electricshock-(a) both ac and dc voltage source are terminated inside this equipment. Eachcircuitmust be individually disconnected before servicing, and (b) When the photo ltaicarrayisex posed to light, it supplies a dc voltage to this equipment. Warranty void if cover removed. No user serviceable parts inside. Refer servicing to qualified service personnel. This inverterhas an integral ground-fault detector / interrupter (GFDI). This Utility InteractiveInvertercontains active anti-islanding protection(IEEE

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 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 compliancemay void the user’s authority to operate the equipment.

Symbols replace words on the equipment, on a display, or inmanuals

Trademark.

Caution, risk

Caution, hot surface.

NOTICE, danger !This device directly connected with electricity enervators and  public grid.

**** Person adequately advised or supervised by an electrically skillet adperson 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, electrical system and EMC and is authorized to energize, ground, and tag equipment, systems, and circuits in accord acne with stablished safety procedures. The inverter and endues systemmayonlybe commissioned and operated by qualified personnel

APsystems Microinverter System Introduction

The APsystems Microinverter is used in utility-interactive grid-tied applications, comprised of three key elements:

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

Each PV module has individual Maximum Peak Power Tracking (MPPT) controls, which ensures that the maximum power is produced to the utility grid regardless of the performance of the other PV modules in the array. When PV modules in the array areaffected by shade, dust, orientation, or any situation in which one module underperforms compared with the other units, the APsystems Microinverter ensures top performance from thearray by maximizing the performance of each module within the array

More reliable than centralized or string inverters

The distributed APsystems Microinverter system ensures that no single point of systemfailureexists across the PV system. APsystems Microinverters are designed to operate at full powerat ambient outdoor temperatures of up to 149°F (65°C). The inverter housing is designed for out door installation and complies with the Type 6 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 our online module compatibility checker called Edecideror contact APsystems).

Smart system performance monitoring and analysis

The APsystems Energy Communication Unit (ECU) is installed by simply pluggingit intoany wall outlet and providing an Ethernet or Wi-Fi connection to abroad band router or modem. 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, in forms you of abnormal events, and controls system shutdown when it is needed. (See ECU manual for instructions.

APsystems Microinverter YC600B Introduction

YC600B was designed to accommodate today’s high output PV panels, offer enhanced capability and meet the latest grid compliance standards. Offering an unprecedented375VApeak output power per channel, the YC600B works with 60 and 72-cell PV modules and offers dual, independent MPPT per panel. The YC600B also operates within a wider MPPT voltage range than competing brands for a greater energy harvest.

Key Product Features:

• Dual-module microinverter with independent MPPT per panel
• 750VA maximum output power
• Accommodates 60 & 72-cell PV modules up to 550W+
• Connect to 120V or 127V grid
• Stable wireless communication

APsystems Microinverter System Installation

A PV system using APsystems Microinverters is simple to install. Each Microinverter easilymounts 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 dedicatedcircuitto the APsystems micro inverter 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 backed. In similar manner, AC AFCIs have not been evaluated for back feeding and may be damagedifback feed with the output of a  PV inverter.

****Warning

1. Perform all electrical installations in accordance with local electrical codes.

2. Be aware that only qualified professionals should install and/or replace
   APsystems Microinverters.

3. Before 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.

4. Be aware that installation of this equipment includes the risk of electric shock.

5. Do not touch any live parts in the system, including the PV array, when thesystem has been connected to the electrical grid.

Notice

Additional Installation components from APsystems

• Bus Cable End Cap (sold separately)
• Bus Cable Y-CONN Cap (sold separately)
• Bus Cable Unlock Tool (sold separately)

Required Parts and Tools from you

In addition to your PV array and its associated hardware, you will need the followingitems:

• An AC connection junction box
• Mounting hardware suitable for module racking
• Sockets and wrenches for mounting hardware

Installation Procedures

Step 1 – Verify the grid voltage to match with microinverter rating

Step 2 – The AC bus distribution

a. The AC bus is arranged at the proper position of the inverter.
b. One end of the A C bus access junction box into power grid.
c. Wire the conductors of the AC bus: L – BROWN ; N – BLUE ; PE – YELLOWGREEN

Warning

Wiring color 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.Wrongcablingcan damage irreparably the micro inverters, such an issue is not covered by the warranty

Warning

Do NOT carry the micro inverter by the AC cable. This may cause the AC cabletopartially or fully disconnect from the unit, resulting in no or poor operation.

Step 3 – Attach the APsystems Microinverters to the racking

a. Mark the location of the Microinverter on the rack, with respect to the PVmodulejunction box or any other obstructions.
b. Mount one Microinverter at each of these locations using hardware recommended by your module racking vendor. When install micro inverter, grounding washer must be facing the racking.

Warning

Prior to installing any of the micro inverters, verify that the utility voltage at the point of common connection matches the voltage rating on micro inverter label.

Warning

Do not place the inverters (including DC and AC connectors) Where exposed to thesun, rain or snow, even gap between modules. Allow a minimum of 3/4’’(1.5cm.)between the roof and the bottom of the micro inverter to allow proper air flow. The racking of install micro inverter must be reliably grounding

Step 4 – Ground the systems

a. There already has earth wire inside the AC cable, thus the grounding work could bed one directly by it.
b. For those areas that have special requirements, the external grounding work could be done by grounding

Step 5 – Connect the APsystems microinverter to ACbuscable

Push the microinverter AC connector into the trunk cable connector until you hear a “click”. Try to remove it to check that it is properly locked.

Best Practice: Use the Bus Cable Unlock Tool of AC Bus to split the connectors

a. Check the microinverter technical data page(p.18) for the maximumallowablenumber of microinverters on each AC branch circuit.
b. Plug the AC connector of the microinverter into the AC bus

Cover any unused connectors with Bus Cable Y-CONN to protect the connectors.

Install a Bus Cable End Cap at the endof ACbuscable

• a. Strip cable jacket.

• c. Insert the wires into the cableclamps.
  

• b. Insert the cable end into the seal.
  

• d. Rotate the nut with 3.3N·muntil the latching mechanism meets the base.
  

Step 7 – Connect APsystems Microinverters tot he PVModules

Notice

When plugging in the DC cables, the micro inverter should immediately blink green three =times. This will happen as soon as the cables are plugged in and will show that the microinverter is functioning correctly. This entire check function will start and end within 5 seconds of plugging in the unit, so pay careful attention to these lights when connecting the DC cables.

Warning

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 surethatall of the junction boxes are properly closed.

Step 8 – Complete the APsystems installation map

Fill in the APsystems Registration Cards, which provide system in formation and the installation map. Feel free to provide your own layout if a larger or more intricate ins tallationmap is required. The layout map provided is designed to accomodate labels in vertical or horizontal orientation to meet all the field PV connections.

a. Each APsystems Microinverter has removable serial number labels.
b. Peel labels off, affix one to the respective location on the APsystems installationmap, and fill in 1,2 in the label below,according to the layout on the roof.
c. The other one serial number label, posted on the solar module frame is easytoviewthe position.

APsystems Microinverter & Energy Communication Unit Warranty Card

The APsystems Installation Map is a diagram of the physical location of each microinverterinyour PV installation. Each APsystems micro inverter has a removable serial umbrella relocated on the mounting plate. Peel the label and affix it to the respective location on the APsystems installation map

 APsystems microinverter system operating instructions

To operate the APsystems microinverter PV system:

1. 1. Turn ON the AC circuit breaker on each micro inverter AC branch circuit.
2. Turn ON the main utility-grid AC circuit breaker. Your system will start producing power fret a two-minute waiting time.
3. The units should start blinking green every 2 seconds five minutes after turning on the Circuit breaker. This means they are producing power normally, but havenotyetconnected to the ECU. After the ECU has been plugged in , setup acknowledges the Microinverters, they will start to blink green every 10 seconds.
4. Plug in the ECU and follow the instructions according to the manual for the ECU.
5. The APsystems Microinverters will start to send performance data to the ECU. Thetimere quired for all the Microinverters in the system to report to the ECU will vary with then umber 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 informant

Troubleshootin

Qualified personnel can use the following troubleshooting steps if the PV system does not operate correctly

Status Indications and Error Reporting

Start up LED
One quick red light followed by three short green blinks when DC power is first appliedtothe Microinverter indicates a successful Microinverter star

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 withECUover60mins

Flashing Red – Not producing power
Steady Red – Electrode assembly ground fault protection

GFDI Error’

A solid red LED indicates the Microinverter has detected a Ground Fault Detector Interrupter (GFDI) error in the PV system. Unless the GFDI error has been cleared, the LED will remain red and the ECU will keep reporting the fault. After the ground fault error is fixed, follow the instructions in the ECU Installation and Operation Manual to clear this GFDI error reporting.

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

warning

Only qualified personnel should directly handle the APsystems Microinve\

warning

1. Never disconnect the DC wire connectors under load. Ensure that no current is flowing in the DC wires prior to disconnecting.
2. Always disconnect AC power before disconnecting the PV module wires from the APsystems Microinverter.
3. The APsystems Microinverter is powered by PV module DC power. AFTER disconnecting the DC power, when reconnecting the PV modules to the Micro inverter, be sure to watch for the three short LED flashes.

Troubleshooting a non-operating APsystems Microinverter

There are two possible overall areas of trouble:

A. The Microinverter itself may be having problems.
B. The Microinverter itself is working fine but it is having trouble communicating with the ECU. The items below refer to Microinverter issues, not communication issues (addressedin the ECU manual).

A quick way to tell whether the issue is the Microinverter or a communication problemwiththe ECU:

Diagnosing from the Microinverter: A red light:

a. A blinking red light means microinverter problem or AC connection problem.
b. A solid red light means ground fault detector interrupter error.

Diagnosing from the EC

a. No-Data-Display: This is probably a communication issue- not a Microinverter problem.
b. Problems with erratic display: Data is displayed for some period and thennodata is displayed: most likely a communication issue.
c. 0 watts, or 2 watts: Possibly a Microinverter problem
d. Erratic data display that is not coordinating with data displays fromother units: mostlikely a Microinverter problem.

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 theinverterin question by removing AC, then DC power. Never disconnect the DC wireswhilethe micro inverter is producing power. Re-connect the DC module connectors and watch for three short LED flashes.

3. Check the AC branch circuit interconnection between all the microinverters. Verifyeach inverter is energized by the utility grid as described in the previous step.

4. Make sure that any AC breaker are functioning properly and are closed.

5. Check the DC connections between the micro inverter and the PV module.

6. Verify the PV module DC voltage is within the allowable range shown in the Technical
   Data of this manual.

7. If the problem persists, please call APsystems Customer Support.

warning

Do not attempt to repair the APsystems micro inverter. If troubleshooting methods fail, please return the micro inverter to your distributor

Maintenance

No need to Maintenance

Replace a micro inverter

Follow the procedure to replace a failed APsystems Microinve

A. Disconnect the APsystems Microinverter from the PV Module, in the order shown below:

1. 1. Disconnect the AC by turning off the branch circuit breaker.
2. Disconnect the inverter AC connector from the AC Bus.
3. Disconnect the PV module DC wire connectors from the microinverter.
4. Remove the Microinverter from the PV array racking.

B. 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 to the AC bus

D. Close the branch circuit breaker, and verify operation of the replacement Microinverter

Technical Data

warning

1. Be sure to verify the voltage and current specifications of your PV module match with those of the Microinverter. Please refer to the datasheet or user manual whichcan be download from APsystems website www.APsystems.com.
2. You must match the DC operating voltage range of the PV module with the allowable input voltage range of the APsystems Microinverter.
3. The maximum open circuit voltage of the PV module must not exceedthespecified maximum input voltage of the APsystems.

YC600B Microinverter Datash et

NOTE 1 Below
Trip Limit And Trip  Time Accur Voltage Freque Alternate Trip times| /-2V Frequency +/-0.1Hz Alternate Trip times See NOT
Features|
Communication (Inverter To| Wireless
Transformer D| High Frequency Transformers, Galvanically Isola
Monitoring| Energy Management Analysis (EMA) system
Warranty (5)| 10 Years Standard
Certificate & Compliance|
Compliance| UL1741 (IEEE1547); CSA C22.2 No. 107.1; NOM-001; ABNT NBR 16149:2013; ABNT NBR 16150:2013; ABNT NBR IEC 62116: 20

Note 1: Utility Interconnection Voltage and Frequency Trip Limits and Trip Times

Voltage and frequency limits for utility Interaction

**** Condition| Simulated utility source| Maximum time (sec) (cycles) at 60 Hza before cessation of current to thesimulated utility| **** Trip time accuracy
Voltage (V)| Frequency (Hz)
A| < 0.50 Vnor| Rated| 80ms| +/-80ms
B| 0.50 Vnor ≤ V < 0.88 Vnor| Rated| 1000ms| +/-200ms
C| 1.10 Vnor < V < 1.20 Vnor| Rated| 1000ms| +/-200ms
D| 1.20 Vnor ≤ V| Rated| 80ms| +/-80ms
E| Rated| f > 60.5| 160ms| +/-200ms
F| Rated| f < 59.3| 160ms| +/-200ms

1. Nominal voltage/frequency range can be extended beyond nominal if required by the utility.
2. Limits may vary. Refer to local requirements to define the number of microinverters per branch in your area.
3. The inverter may enter to power de-grade mode under poor ventilation and heat dissipation installation environment.
4. Recommend no more than 80 inverters register to one ECU for stable communication.
5. To be eligible for the warranty, APsystems microinverters need to be monitored via the EMA portal. Please refer to our warrantyT&Cs available on latam.APsystems.com

Specifications subject to change without notice please ensureyouareusing the most recent update found at web : latam.APsystems.com ©All Rights Reserved

Wiring Diagram

Sample Wiring Diagram – Single Phase

APsystems Microinverter & Energy Communication Unit Installation Map

The APsystems Installation Map is a diagram of the physical location of each microinverter in your PV installation. Each APsystems microinverterha stwo serial number labels. Peel the one label and affix it to the respective location on the APsystems  installation map. Installation Map Template

Installer:| PV module type:                                  Qty:| Sheet __**of __| N
---|---|---|---
Owner:| Microinverter type:                            Qty:**
| Column 1| Column 2| Column 3| Column 4| Column 5| Column 6| Column 7
Row 1| | | | | | |
Row 2| | | | | | |
Row 3| | | | | | |
Row 4| | | | | | |
Row 5| | | | | | |
Row6| | | | | | |
Row 7| | | | | | |
Row 8| | | | | | |
Row 9| | | | | | |
Row10| | | | | | |

References

• APsystems Latin America | El líder global en la tecnología multi-plataforma MLPE
• APsystems | The global leader in multi-platform MLPE technology

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