First Solar 7 Series Manuale utente

First Solar Series 7 FT1 Module - USER GUIDE

MPD-00810-07-IN

REV 1.0

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE i of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

First Solar and the First Solar logo are trademarks of First Solar, Inc., registered in the U.S. and other

countries. Series 7 and Series 7 FT1 are trademarks of First Solar, Inc.

NOTICE

First Solar reserves the right to make changes in solar module design and/or specifications at any time

without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing

orders or finalizing system permitting and/or design. Information furnished by First Solar is believed to be

accurate and reliable. However, no responsibility is assumed by First Solar or its subsidiaries for its use; nor

for any infringements of patents or other rights of third parties, which may result from its use. No license is

granted by implication or otherwise under any patent or patent rights of First Solar or its subsidiaries.

CONTACT INFORMATION

For information regarding First Solar and its products, please visit www.firstsolar.com. First Solar has an

extensive library of supporting Application Notes that can be made available upon request from technical

support [email protected].

GLOBAL

First Solar, Inc.

P.O. Box 730

Toledo, OH USA 43697-0730

Tel: +1 (602) 414-9300

Fax: +1 (602) 414-9400

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE ii of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

TABLE OF CONTENTS

1INTRODUCTION 1

2SAFETY 2

3REGULATORY COMPLIANCE 4

4PRODUCT IDENTIFICATION & RATINGS 5

4.1 PRODUCT IDENTIFICATION & RATINGS 5

4.2 SYSTEM DERATING FACTORS 6

5HANDLING & STORAGE 7

5.1 HANDLING & STORAGE 7

6MECHANICAL SPECIFICATIONS 8

7INSTALLATION & MOUNTING 9

7.1 MOUNTING 9

7.2 MOUNTING LOCATIONS & LOAD RATINGS 9

7.3 BACKRAIL MOUNTING 11

7.4 MODULE ORIENTATION 12

7.5 MODULE SHADING CONSIDERATIONS 13

7.6 WIRE MANAGEMENT 14

7.7 ELECTRICAL INTERCONNECTION 15

7.8 INVERTER COMPATIBILITY 16

7.9 GROUNDING METHOD 17

8MAINTENANCE 18

8.1 MAINTENANCE 18

8.2 MODULE CLEANING GUIDANCE 19

8.3 MODULE DISPOSAL 21

9REVISION HISTORY 22

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 1 of 22

1INTRODUCTION

This document provides information on First Solar Series 7 FT1 modules of model types FS-7XXXA-FT1

(“XXX” references the module power rating) for system designers, installers, and maintenance personnel.

Modules are designed to have a long operating life and high energy yield when installed, operated, and

serviced in accordance with the instructions in this User Guide. Read this User Guide thoroughly before

beginning any work related to installation, operation, or maintenance.

Please refer to your First Solar Module Warranty Terms & Conditions for module warranty terms and product

return policies. Failure to follow this User Guide may void your warranty.

Keep this User Guide for future reference and provide to all subsequent owners or users of the

solar modules. Updates may be found at www.firstsolar.com.

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FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

2SAFETY

All instructions and safety information should be read and understood before attempting to handle, install,

or electrically connect First Solar modules. Failure to follow safety, installation, and handling instructions

may result in injury. Only qualified personnel should install, operate, or maintain PV modules or systems.

Series 7 FT1 modules are designed for 1500 VDC systems at altitudes up to 3000 m (9842 ft) per IEC

61730. Series 7 FT1 modules are designed for 1000 V systems at altitudes up to 5000 m (16404 ft) per

IEC 61730.

Select installation locations and module support structures to ensure modules and connectors (open or

mated) are never submerged in standing water.

DANGER

Series 7 FT1 modules may produce up to 285 Volts DC (VDC) and up to 4.5 A when exposed to

sunlight. The danger increases as modules are connected together in series and/or parallel.

FT1

A single module or multiple interconnected modules can create a lethal shock hazard during

daylight hours, including periods of low light levels

DANGER

To avoid fire and/or injury

due to ground faults and associated electrical hazards:

►Do not unplug PV module connections while under load. Do not disconnect the module

connectors during daylight hours unless the module is in an open circuit condition.

►Replace modules with damaged wires immediately. Keep all array wiring out of reach of

non-qualified personnel.

►Do not concentrate light on the module in an attempt to increase power output.

►Never allow the PV array system voltage to exceed 1500 VDC under any condition.

►Replace broken modules immediately.

►Repair ground faults immediately.

►Do not work on modules or systems when the modules or wiring is wet.

►All building mounted PV systems should utilize Ground Fault Detector Interrupters (GFDI)

and ARC Fault Circuit Interrupters to minimize risk of electrical shocks and fires.

Series 7 FT1 modules have a maximum overcurrent protection rating of 5.0 A as defined by IEC 61730-1

and IEC 61730-2. PV systems should be designed to comply with and provide module overcurrent

protection consistent with local codes.

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 3 of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

The conditions necessary to trigger reverse current overload (RCOL) do not occur in typical operating modes

of a properly installed PV system. The system designer should ensure that modules are not subjected to

RCOL. The use of GFDI devices or other advanced fault monitoring techniques can significantly reduce the

likelihood of sustained ground faults. Properly selected and installed string fuses can increase protection

against RCOL.

DANGER

Reverse currents

higher than the rated values for a First Solar module, may result in module

failure, including module breakage due to RCOL. Extreme and continuous RCOL conditions may

cause a fire or create electrical shock hazards. To avoid RCOL:

►Maintain equivalent voltage in parallel strings by installing an equal number of modules

per string within the same source circuit. Failure to install modules with balanced voltage

in parallel strings can result in voltage imbalance.

►Incorporate measures to protect modules against RCOL for connections of parallel strings.

Modules damaged because of system-induced RCOL are not covered under the First Solar Module

Warranty. Module warranty eligibility is not affected by the presence, absence, or type of reverse current

protection used in a system design.

CAUTION

Wear safety glasses

and

cut-resistant gloves

when working with non-interconnected modules or

system components.

Wear electrically rated PPE

when working with interconnected modules or system components.

Select PPE based on work consistent with local and/or national standards.

WARNING

To avoid risk of fire, do NOT interconnect Series 7 FT1 modules with other FS Series modules

(e.g. – Series 6, Series 4, Series 3, or Series 2) within the same interconnected string, inverter,

or Maximum Power Point Tracker.

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 4 of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

3REGULATORY COMPLIANCE

It is the responsibility of the installer and/or system integrator to ensure compliance with all local structural

and electrical codes, which may be applicable to the installation and use of First Solar Series 7 FT1

modules.

Series 7FT1 modules are tested and certified per IEC 61730-1/IEC 61730-2 and meet Class II

requirements for 1500 VDC systems.

Series 7FT1 modules are tested and certified per IEC 61215-1/IEC 61215-1-2/IEC 61215-2 for a

maximum system voltage of 1500 VDC.

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 5 of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

4PRODUCT IDENTIFICATION & RATINGS

4.1 PRODUCT IDENTIFICATION & RATINGS

Each module is equipped with a product label on the back and laser-etched identification on the front glass.

The label identifies the model number, nameplate electrical ratings, and safety information, and it is

equipped with a Radio-Frequency Identification (RFID) tag.

The module Rated Power is denoted in the ‘XXX’ position of the base Model Number format of FS-7XXXA-

FT1. (Example: FS-7550A-FT1 has a Rated Power of 550W)

The ratings in Table 1 have a tolerance of ±10% unless otherwise noted.

Note: Electrical specifications are subject to change. See module label for final electrical ratings.

Table 1: Ratings at Standard Test Conditions (STC1)

RATED POWER2

(-0/+5%)

VOLTAGE AT

PMAX

CURRENT AT

PMAX

OPEN CIRCUIT

VOLTAGE

SHORT CIRCUIT

CURRENT

MAX SYSTEM

VOLTAGE

MAX SERIES

FUSE

MAX

(W)

MAX

(V)

IMAX(A)

VOC(V)

ISC(A)

SYS

(V)

ICF(A)

465.0 175.1 2.66 219.4 2.95

1500 5.0

470.0 176.0 2.67 220.0 2.96

475.0 177.0 2.68 220.5 2.97

480.0 177.9 2.70 221.1 2.98

485.0 178.8 2.71 221.7 2.98

490.0 179.7 2.73 222.3 2.99

495.0 180.7 2.74 222.8 3.00

500.0 181.6 2.75 223.4 3.01

505.0 182.5 2.77 223.9 3.01

510.0 183.4 2.78 224.5 3.02

515.0 184.3 2.80 225.0 3.03

520.0 185.2 2.81 225.6 3.04

525.0 186.0 2.82 226.1 3.04

530.0 186.9 2.84 226.7 3.05

535.0 187.8 2.85 227.2 3.06

540.0 188.7 2.86 227.7 3.06

1As received and stabilized ratings at STC (1000 W/m², AM1.5, (25 ± 2)°C Cell Temperature) ±10%

2Measurement uncertainty applies

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 6 of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

Table 2: Temperature Characteristics

TEMPERATURE CHARACTERISTICS

Module Operating Temperature Range (°C) -40 to +85

Temperature Coefficient of PMAX

MAX

)

-0.32%/°C (Temperature Range: 25°C to 75°C)

Temperature Coefficient of VOC

)

-0.28%/°C

Temperature Coefficient of ISC

)

+0.04%/°C

4.2 SYSTEM DERATING FACTORS

Under normal operation, a PV module may experience conditions that produce higher current and/or

voltage than reported at STC. Accordingly, the values of Isc and Voc listed for STC should be multiplied by a

factor of 1.25 when determining component voltage ratings, conductor current ratings, and size of controls

connected to the PV output.

The safety factor of 1.25 for the minimum voltage rating of the components can be modified during the

design of a system according to the minimum temperature of the location of the installation and the

temperature coefficient for Voc. Isc can be adjusted based on maximal temperature, irradiance and

orientation of the module. To this end a full simulation for the specific location is required using long term

weather data.

FIRST SOLAR First Solar Series 7 FT1 Module - USER GUIDE 7 of 22

FIRST SOLAR, INC. | MPD-00810-07-IN REV 1.0

5HANDLING & STORAGE

5.1 HANDLING & STORAGE

When handling packs using forklifts or other mechanical aids, ensure uniform pack support, and the forks

fully extend under the pallet. Packs can be lifted from either the short or long side of the pallet. Packs must

not be stacked in the field or transported stacked. Packs must not be exposed in the field for longer than 6

weeks. Forklifts must engage the pallet a minimum of 1.5 m (60 in) for long side engagement and a

minimum of 1.65 m (65 in) for short side engagement. Failure to meet engagement lengths may damage

pallet and modules on bottom of pack. Make sure lifting equipment is up to spec based on the dimension

and weight of the pack.

Modules on a pack may lean or shift on a pallet during shipping. If any damage is observed, use the Delivery

Note to document affected pallets and contact [email protected].

Please evaluate site conditions for safe pack storage as uneven or recently disturbed ground and moisture

may affect pack stability. Packs are not intended for outdoor storage longer than 6 weeks. Packs should not

be exposed to standing water or saturated ground.

WARNING

Open the packaging with care. A single person should not attempt to lift a Series 7 FT1 module

Lift the modules from the pallet with two or more persons or with lift assist.

Do not attempt to lift

multiple modules at the same time.

During handling and installation, do not make abrasive contact with top glass surface to prevent

scratches of ARC film.

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