APsystems YC500A Bedienungsanleitung

Installation / User Manual

Rev 1.0

ALTENERGY POWER SYSTEM Inc.

WEB: www.APsystems.com

APsystems Shanghai:

B403 No.188, Zhangyang Road, Pudong, Shanghai｜+86 21 3392 8205

YC500A Microinverter

YC500A Installation/User Manual

Table of Contents

Important Safety Instructions..............................................................................................................2

Safety Instructions................................................................................................................................................ 2

Radio Interference Statement.............................................................................................................................. 3

APsystems Microinverter System Introduction.................................................................................. 4

APsystems Microinverter YC500A Introduction..................................................................................6

APsystems Microinverter System Installation.................................................................................... 7

Additional Installation components from APsystems..........................................................................................7

Required Parts and Tools from you...................................................................................................................... 7

YC500A Installation Procedures............................................................................................................................8

Step 1 - Installing the AC Branch Circuit AC Isolator.................................................................................... 8

Step 2 - Attaching the APsystems Microinverters to the Racking or the PV Module Frame...................... 9

Step 3 - Connecting the APsystems Microinverter AC Cables....................................................................10

Step 4 - Connecting APsystems Microinverters to the PV Module............................................................ 11

Step 5 - Completing the APsystems Installation Map................................................................................ 12

APsystems microinverter system operating instructions................................................................. 14

Troubleshooting................................................................................................................................. 15

Status Indications and Error Reporting...............................................................................................................15

Start up LED.................................................................................................................................................15

Operation LED............................................................................................................................................. 15

Other Faults.................................................................................................................................................15

Troubleshooting a non-operating APsystems Microinverter............................................................................. 16

Replace a microinverter.....................................................................................................................17

Technical Data.................................................................................................................................... 18

APsystems YC500A Microinverter Datasheet..................................................................................................... 19

Wiring Diagram.................................................................................................................................. 19

Sample Wiring Diagram - Single Phase...............................................................................................................20

Sample Wiring Diagram - Three Phase............................................................................................................... 21

YC500A Installation/User Manual

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.

Specifications subject to change without notice - please ensure you are using

the most recent update found at www.APsystems.com

WARNING: 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.

NOTE: This indicates information that is important for optimized

microinverter operation. Follow these instructions closely.

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 to obtain an RMA number and start the

replacement process. Damaging or opening the APsystems Microinverter

will void the warranty.

WARNING

SYMBOL

NOTE

SYMBOL

YC500A Installation/User Manual

Important Safety Instructions

Radio Interference Statement

EMC Compliance：The equipment can comply with the limits from

EMC requirement, which are designed to protect against harmful

interference in a residential installation. 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.

YC500A Installation/User Manual

APsystems Microinverter 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

Figure 1

YC500A Installation/User Manual

APsystems Microinverter 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

Each PV module has individual Maximum Peak Power Tracking (MPPT)

controls, which ensures that the maximum power is exported to the utility

grid regardless of the performance of the other PV modules in the array.

When PV modules in the array are affected by shade, dust, orientation,

or any situation in which one module underperforms compared with the

other units, the APsystems Microinverter ensures top performance from

the array 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 system failure exists across the PV system. APsystems Microinverters

are designed to operate at full power at ambient outdoor temperatures

of up to 149°F (65°C). The inverter housing is designed for outdoor

installation and complies with the NEMA 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 Edecider or contact APsystems).

The Ground wire (PE) of the AC cable is connected to the chassis

inside of the Microinverter,potentially eliminating the installation

of grounding wire (check local regulation).

Smart system performance monitoring and analysis

The APsystems Energy Communication Unit (ECU) is installed by simply

plugging it into any wall outlet and providing an Ethernet or Wi-Fi connection

to a broadband 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, informs you of abnormal events, and controls system

shutdown when it is needed. (See ECU manual for instructions.)

YC500A Installation/User Manual

APsystems Microinverter YC500A Introduction

The APsystems YC500A Microinverters connect with the Split-phase grid,

and operate with most 60 and 72 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

Max. #

Per branch

Module Connector

YC500A

50Hz/230V

60,72 Cell

9 for 20A breaker

11 for 25A breaker

MC-4 Type or Customize

YC500A Installation/User Manual

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.

WARNING: Perform all electrical installations in accordance with

localelectrical codes.

WARNING:Be aware that only qualified professionals should install

and/or replace APsystems Microinverters.

WARNING: 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.

WARNING: Be aware that installation of this equipment includes

the risk of electric shock.

WARNING: Do not touch any live parts in the system, including the

PV array, when the system has been connected to the electrical grid.

NOTE: Strongly recommend to install Surge protection Devices in

the dedicated meter box.

Additional Installation components from APsystems

AC End Cable (sold separately)

AC Extension Cable (sold separately)

AC Female Connector Cap (sold separately)

AC Male Connector 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 isolator

Mounting hardware suitable for module racking

Sockets and wrenches for mounting hardware

A Phillips screwdriver

A torque wrench

YC500A Installation/User Manual

YC500A 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.

WARNING: 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.

Figure 2

Step 1 - Installing the AC Branch Circuit AC Isolator

Figure 3

a. Install an appropriate AC isolator 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 branch end cable into the

junction box using an appropriate gland or strain relief fitting.

c. Wire the conductors: L - BROWN; N - BLUE; PE -YELLOW GREEN.

d. Connect the AC branch circuit AC isolator to the point of utility

interconnection.

Go to AC isolator

YC500A Installation/User Manual

YC500A Installation Procedures

Step 2 - Attaching the APsystems Microinverters to the Racking or the

PV Module Frame

Attach to the racking

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.

Option 1:

Photovoltaic Grid-connected Inverter Type:YC500A-NA-MX

Figure 4

Option:2

Figure 5

Attach to the PV module frame.

Drill holes on the PV module frame before installing YC500A. Please check with

the module manufacturer the compatibilty of such installation process.

Figure 6

WARNING: 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.

WARNING: 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.

(not supplied

by APsystems)

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