Ampt V600-32-32 User manual

Ampt String Optimizer

V600-32-32

V600-32-30

V600-32-28

V600-32-25

V600-32-24

Installation Manual

57070021-1 A

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

retransmitted, or copied in any form without the expressed and written permission of Ampt,

LLC.

This document contains information needed to install and commission an Ampt optimizer

(including Smart String Technology®optimizers, String Stretch®optimizers, Ampt Mode®

optimizers, String View®optimizers, V-match®optimizers, and Direct-to-Battery®optimizers)

within a photovoltaic (PV) installation. The result? Energy realized®.

All Ampt trademarks are the property of Ampt LLC. All trademarks are recognized even if they

are not marked separately. Visit www.ampt.com/trademarks for a list of Ampt trademarks. Any

unauthorized use of Ampt trademarks is prohibited. All other trademarks are the property of

their respective owners.

U.S. and international patents apply to this product. For details visit: www.ampt.com/patents.

Read This First

To help avoid problems during the system installation, familiarize yourself in advance with the

installation process by reading this entire document before starting the installation.

Risk of electric shock, do not remove covers. No user serviceable parts inside.

Refer servicing to qualified service personnel. When the photovoltaic array is

exposed to light, it supplies a dc voltage to this equipment.

Le risqué de décharge électirque n’enlènvent pas la couverture. Aucunes

pieces utiles d’utilisateur à l’intérieur. Référez-vous l’entretien au personnel de

service qualifiè. Quand la range photovoltaïque est exposée à la lumière. Il

fournit une tension CC à cet équipement.

Hot surfaces –to reduce the risk of burns –do not touch.

Les surfaces chaudes - pour réduire le risque de brûlures - ne se touchent pas.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Important Safety Instructions

This manual contains important instructions for Ampt optimizers that shall be followed during

installation and maintenance. The optimizer has been designed and tested according to

international safety requirements, but requires certain precautions are observed when

installing and/or operating the optimizer. To reduce the risk of personal injury and to ensure

the safe installation and operation of the optimizer, please be sure you carefully read and

follow all instructions and safety messages in this manual.

SAVE THESE INSTRUCTIONS

Safety Message Types

The following messaging is used to identify a hazard to equipment or personnel:

DANGER

Indicates a hazardous situation which, if not avoided, will result in death or

serious injury.

WARNING

Indicates a hazardous situation which, if not avoided, could result in death or

serious injury.

CAUTION

Indicates a hazardous situation which, if not avoided, could result in minor or

moderate injury.

NOTICE

Indicates information considered important but not hazard, or personal injury,

related - for example, property damage.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

General Safety

Installation and maintenance should be performed only by qualified persons. Installers and

maintenance personnel assume the risk of all injury that might occur during installation or

maintenance including, without limitation, the risk of electric shock. Follow your safety

procedures and protocols.

All electrical installations must be done in accordance with the local and National Electrical

Code ANSI/NFPA 70; Canadian Electrical Code, Part I; or the applicable standards, codes, and

regulations for your region.

Failure to follow this manual will void warranty.

The Ampt product contains no user-serviceable parts. All repairs and maintenance should be

handled in accordance with the instructions and terms contained in the product warranty.

Before installing or using the Ampt optimizer, read all instructions and safety messages on the

optimizer and in this manual. Follow the safety precautions for this product as well as the other

components in the PV system.

PV modules produce electrical energy when exposed to light and thus can create an electrical

shock hazard. Wiring of the PV modules should only be performed by qualified personnel.

NOTICE

Opening the optimizers, performing any other service to the optimizers, or using

the optimizers in a way that is not specified by the manufacturer voids warranty.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Disclaimer of Liability

Ampt makes no representations, expressed or implied, that with respect to this documentation

or any of the equipment and/or software it may describe, including (with no limitation) any

implied warranties of utility, merchantability, or fitness for any particular purpose. All such

warranties are expressly disclaimed. Ampt shall not be liable for any indirect, incidental, or

consequential damages under any circumstances. (The exclusion of implied warranties may not

apply in all cases under some statutes, and thus the above exclusion may not apply.)

The following information is subject to change without notice, even though every attempt has

been made to make this document complete, accurate and up to date. Readers are cautioned,

however, that Ampt reserves the right to make changes without notice and shall not be

responsible for any damages, including indirect, incidental, or consequential damages, caused

by reliance on the material presented, including, but not limited to, omissions, typographical

errors, arithmetical errors or listing errors in the content material.

WARNING

Any use of the Ampt String Optimizer that is not expressly authorized in this

manual or associated documentation is expressly prohibited by Ampt. Ampt

disclaims any responsibility or liability for such prohibited use.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Before You Begin

Handling and Storage

•Store optimizers in a clean, dry area that is protected from weather exposure and

pooling water (-30 to 80°C. Relative humidity < 80%).

•Leave the product in its original packing box until you are ready to install.

•Do NOT stack pallets.

•Do NOT lift, carry, or otherwise handle the optimizers by their connectors.

•Leave connector caps in place until the optimizers are ready to be connected to protect

the optimizer from water and debris ingress.

•Do NOT transport optimizers that are removed from original packaging. If the original

packaging is no longer available, use a similar box to protect the connectors and heat

sink fins.

Quick Reference and Best Practices

NOTICE

The last page of this manual has a quick reference sheet for making electrical

connections as well as a list of best practices. This information is meant to be

used as a reference on the job site to ensure the electrical connection order and

to avoid damage to the device after the installer has read this manual.

Using Optional Wireless Communication

NOTICE

If the String Optimizers are being used with optional wireless communication,

then refer to the Ampt Communication Unit (Ampt CU) manual for important

requirements related to the String Optimizer installation.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Table of Contents

Read This First ...............................................................................................................................3

Important Safety Instructions ..............................................................................................................................4

Safety Message Types ..........................................................................................................................................4

General Safety......................................................................................................................................................5

Disclaimer of Liability ...........................................................................................................................................6

Before You Begin ...........................................................................................................................7

Handling and Storage...........................................................................................................................................7

Quick Reference and Best Practices.....................................................................................................................7

Using Optional Wireless Communication ............................................................................................................7

Chapter 1: Product Overview............................................................................................... 11

Dimensional Drawings .................................................................................................................12

Physical Overview........................................................................................................................13

Bar Code Label.............................................................................................................................13

Chapter 2: ........................................................................................................................... 15

Understanding Electrical Configurations .............................................................................. 15

PV Array Configurations...............................................................................................................15

Ungrounded PV Arrays.......................................................................................................................................15

Grounded PV Arrays (positive or negative)........................................................................................................15

Acceptable Input Configurations ..................................................................................................16

Optimizer Input Requirements ..........................................................................................................................16

Fuses ...........................................................................................................................................18

Understanding Maximum Output Current and Fuse Sizing ...............................................................................18

Input Fuses.........................................................................................................................................................18

Two-in-Portrait Wiring .................................................................................................................19

DC-coupled Storage .....................................................................................................................19

Chapter 3: ........................................................................................................................... 20

Installing the String Optimizer ............................................................................................. 20

Getting Started ............................................................................................................................20

Parts and Tools Needed .....................................................................................................................................20

Mounting and Grounding the String Optimizer .............................................................................21

Mounting Considerations...................................................................................................................................21

Warning, Caution, and Notice Statements ........................................................................................................21

Steps...................................................................................................................................................................22

Making Electrical Connections......................................................................................................23

Understanding Connector Polarity.....................................................................................................................23

Warnings and Cautions ......................................................................................................................................24

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Connection/Disconnection Order Matters ........................................................................................................25

Connecting the Inputs........................................................................................................................................25

Connecting the Output ......................................................................................................................................28

Disconnecting the Output and Inputs ...........................................................................................29

Parts and Tools Needed .....................................................................................................................................29

Steps...................................................................................................................................................................30

Appendix............................................................................................................................. 31

Compliance..................................................................................................................................31

Model Numbering System .................................................................................................................................31

Markings.............................................................................................................................................................31

FCC Compliance..................................................................................................................................................32

RSS-GEN .............................................................................................................................................................32

Avis IC.................................................................................................................................................................33

RSS-GEN .............................................................................................................................................................33

Specifications...............................................................................................................................34

32 A models (V525 - V600).................................................................................................................................34

30 A models (V525 - V600).................................................................................................................................35

28 A models (V525 - V600).................................................................................................................................36

25 A models (V525 - V600).................................................................................................................................37

24 A models (V525 - V600).................................................................................................................................38

Reference: Electrical Connection Order.........................................................................................39

Handling and Storage Best Practices..................................................................................................................40

Mounting Best Practices ....................................................................................................................................40

Electrical Connections Best Practices.................................................................................................................40

Ampt Support Contacts......................................................................................................................................40

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Chapter 1: Product Overview

Ampt String Optimizers are DC/DC converters with multiple features that lower the cost and

improve the performance of new and existing PV systems and energy storage systems.

•Dual MPPT per optimizer - Ampt String Optimizers put maximum power point tracking on each of its

two input strings of PV modules. This mitigates or eliminates mismatch losses to deliver more energy

under changing environmental and system conditions over the lifetime of the power plant.

•High Fixed-Voltage Bus (HFVB) –Ampt’s advanced DC power management technology allows for

HFVB system designs which turn the variable voltage of the PV array into a fixed and predictable DC

bus voltage to achieve system-level economic advantages.

•Ampt Mode–Inverters with Ampt Modeoperate in a fixed or narrow input voltage range that is

closer to the maximum system voltage. This allows the inverter to deliver a higher AC output voltage

at the same current which raises the rated output power of the inverter to lower the inverter's cost

per watt.

•String Stretch®–Ampt’s patented String Stretch® technology puts voltage and current limits on the

output of each optimizer which doubles the number of modules per string and allows for smaller

conductor sizing per kilowatt delivered to save up to 50% on electrical BOS costs.

•Direct-to-Converter™–For DC-coupled energy storage systems, Ampt String Optimizers include

Direct-to-Converter technology which allows the DC bus to operate at a higher fixed voltage, so the

converter only needs to buck when charging and boost when discharging. This simplified operation

reduces battery converter costs by up to 50% with less circuitry and a higher power density.

•High DC/AC –Ampt’s unique combination of output current limits and a higher DC bus voltage allows

PV system designers to achieve optimal DC/AC ratios (up to 3:1). With Ampt, system owners can

expand the DC power on existing systems without replacing inverters, combiners, or cables; optimize

inverter utilization on new systems to lower the cost per watt; and lower capex while increasing

storage durations on systems with DC-coupled energy storage.

•V-match–Ampt’s patented V-matchtechnology allows the output of our optimizers to match the

DC bus voltage set by the inverter or battery converter while delivering full available power from the

PV modules. This uniquely allows PV arrays with Ampt to automatically adapt to legacy or future

power equipment to repower existing systems, upgrade inverters, mix new and legacy PV modules,

deploy optimized DC-coupled storage systems, and other applications.

•Full Tracker Fit –Ampt optimizers overcome string-voltage sizing constraints to fit more modules on a

tracker than systems without Ampt. Increasing the number of modules per tracker allows system

designers to fully use the tracker’s mechanical capacity and lower tracker cost per watt.

•Wireless Communication –Ampt String Optimizers incorporate optional wireless communication to

provide string-level data that is highly accurate, synchronous, and scalable to improve O&M, as well as

enhanced controls for storage applications.

For more information on Ampt’s product features and applications, visit www.ampt.com.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Dimensional Drawings

The dimensions for the String Optimizer shown below are in millimeters and inches.

Figure 1: Dimensional drawings

100

3.94”

220

8.66”

208

8.19”

50.8

2”

420

16.54”

466

18.35”

101.6

4”

101.6

4”

108.4

4.27”

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Physical Overview

Figure 2: Physical overview of the string optimizer

Bar Code Label

The image below shows the bar code label with model and serial numbers. Do NOT remove this

label. Removing any label from the optimizer voids warranty.

Figure 3: Bar code tag with the model and serial numbers

Mounting holes

(6.5 mm) x 6

Input 2 connectors

Input 1 connectors

Output connectors

Grounding stud

(10-32) x 2

Bar code label

Antenna for optional

wireless communication

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Chapter 2:

Understanding Electrical Configurations

This chapter explains the installation requirements and considerations that ensure proper

operation of the String Optimizer.

NOTICE

The inputs of the optimizer are not intended for connection to a battery or any

other type of DC source except PV modules.

PV Array Configurations

String Optimizers can be installed in ungrounded and resistively grounded PV systems.

Ungrounded PV Arrays

Figure 4: Electrical connections for an ungrounded PV array

Grounded PV Arrays (positive or negative)

Figure 5: Electrical connections for a grounded PV array

Input configurations

vary by system design

Input configurations

vary by system design

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Acceptable Input Configurations

Each input of the optimizer can have multiple PV strings of the same length in parallel. Each PV

string in parallel, on a given input, should have the same open-circuit voltage (Voc-cold).

Figure 6: Example - Two strings in parallel on each input

Figure 7: Example - Three strings in parallel on each input

When the number of modules on each input is not the same, the input with the highest power

should be connected to input 1.

Figure 8: Strings with the highest power should be connected to Input 1

Optimizer Input Requirements

Inputs 1 and 2 of the String Optimizer have the following requirements for the optimizer to

operate at maximum power point (MPP). The input configurations of different optimizers

within the same PV array can vary so long as they meet the defined criteria.

Figure 9:String Optimizer faceplate referencing Input 1, Input 2, and Output connectors

Note:

For inputs with a single string, like Input 2 shown

here, a fuse may or may not be needed to

protect the modules in case of an array fault.

See Fuses section for more information.

Same Voc-cold

Same

Voc-cold

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

1. The greatest calculated voltage in open circuit on Input 1 (Voc-coldest temperature)

must be less than or equal to the optimizer’s maximum input voltage per the

appropriate datasheet in Specifications section.

Voc-cold-in1 ≤ Optimizer’s Maximum voltage per input

2. The greatest calculated voltage in open circuit on Input 1 (Voc-coldest temperature

calculation) must be less than or equal to the inverter’s maximum input voltage.

Voc-cold-in1 ≤ Inverter maximum input voltage

3. The smallest calculated voltage in open circuit on each input (Voc-hottest temperature)

must be greater than the optimizer’s startup voltage per the appropriate datasheet in

Specifications section.

Voc-hot-in1 > Optimizer's Startup voltage per input

Voc-hot-in2 > Optimizer's Startup voltage per input

4. The smallest calculated voltage at maximum power on each input (Vmp-hottest

temperature) must be at least half of the output voltage of the optimizer (operational

voltage of the DC bus).

Vmp-hot-in1 > (Vout ÷ 2)*

Vmp-hot-in2 > (Vout ÷ 2)*

5. The greatest calculated voltage at maximum power on each input (Vmp-coldest

temperature calculation) must be less than the output voltage of the optimizer

(operational voltage of the DC bus).

Vmp-cold-in1 < Vout*

Vmp-cold-in2 < Vout*

6. The greatest calculated voltage in open circuit on Input 1 (Voc-coldest temperature

calculation) must be greater than the greatest calculated voltage in open circuit on

Input 2. Always have the higher of the input voltages on Input 1.

Voc-cold-in1 ≥ Voc-cold-in2

7. The rated input power for Input 1 must be greater than or equal to rated power on

Input 2 and the rated input power for Input 2 must be at least half the rated power of

Input 1. If you have two strings with different power ratings, install the higher power

string on Input 1.

(Pin1 ÷ 2) < Pin2 ≤ Pin1

* Vout = voltage at the output of the optimizer, which includes the voltage set by the inverter (or battery

converter) plus line losses

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Fuses

CAUTION

Over-current protection devices and conductors shall be sized in accordance with

the National Electrical Code (ANSI/NFPA 70); Canadian Electrical Code, Part I;

or the applicable standards, codes, and regulations for your region.

Understanding Maximum Output Current and Fuse Sizing

The recommended PV system design ensures that the DC bus voltage, which is set by the

inverter, is always greater than the optimizer input voltages. For these systems, the maximum

output current will be the Maximum output current listed on the optimizer’s datasheet.

This design allows the output current limit of the Ampt String Optimizer to eliminate the need

for the 1.25 multiplication factor for over-sun conditions when calculating ampacity. The 1.25

multiplier for continuous use is still required.

Optimizer Max

Output Current (A)

Minimum Standard

Fuse Size (A)

For other system designs where the DC bus voltage can be less than the voltage on either

optimizer input, the potential maximum output current will either be the Maximum output

current listed on the optimizer’s datasheet or the maximum input current –whichever is

greater. If the maximum output current is the one listed on the optimizer datasheet, use the

table above. Otherwise, use your standard fuse sizing method including margins for both over-

sun and continuous use.

Input Fuses

For single PV strings on an optimizer input, an input fuse may be required to protect the

modules in the event of an array fault when the maximum series fuse rating for the PV modules

is less than the output fuse rating. For parallel PV strings on an optimizer input, always use

fuses to protect the PV modules.

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Figure 10: Single PV strings may, and parallel PV strings must, have input fuses to protect the PV modules.

When input fuses are needed, use the appropriate calculations for your jurisdiction to size fuses

to ensure that your module strings are protected according to the maximum series fuse rating

on the datasheet for the PV modules.

Two-in-Portrait Wiring

To maximize bi-facial gains or to mitigate shading between fixed-tilt racking or trackers, keep all

PV modules connected to a given optimizer input within the same row.

Figure 11: Keep all modules on a given optimizer input within the same row to maximize production

DC-coupled Storage

When used in DC-coupled storage applications, the optimizer does not function as a blocking

diode.

Fuses may be required on single string inputs

Fuses required on parallel

strings to protect PV modules

Input 1 on top (or West) row

Input 2 on bottom (or East) row

Input 1

Input 2

String Optimizer V600-32 Platform

Installation Manual: 57070021-1 A

Chapter 3:

Installing the String Optimizer

Getting Started

This chapter addresses the proper mounting and installation of the Ampt String Optimizer. Read

the entire chapter before starting the procedures and then conduct each task in the order

given.

Parts and Tools Needed

•The mounting hardware varies by the type of PV module mounting rail

•Appropriately rated voltmeter and DC current clamp

•Stäubli MC4-Evo 2 crimping pliers with the appropriate crimp range

•Stäubli sealing caps for MC4-Evo 2 connectors. Stäubli p/n: 32.0716 and 32.0717

This manual suits for next models

Table of contents

Other Ampt Inverter manuals

Ampt

Ampt V600-13.5-13.5 User manual

Popular Inverter manuals by other brands

Velleman

Velleman PI300M user manual

SMA

SMA SUNNY BOY STORAGE 2.5 Quick reference guide

Outback

Outback FX series installation manual

Cobra

Cobra CPI1590 operating instructions

Vertiv

Vertiv eSure I120-1000 user manual

EG4

EG4 6000XP user manual

Yamaha

Yamaha EF4000DE - Premium Generator owner's manual

Visicomm

Visicomm 4KSS60400 user manual

Generac Power Systems

Generac Power Systems 004810-0 owner's manual

Victron energy

Victron energy Quattro Series manual

YASKAWA

YASKAWA VS-616G5 Series owner's manual

Solax

Solax X-Hybrid user manual

Electway

Electway Sununo-TL1-5K user manual

B&B

B&B SF1600TL user manual

Mitsubishi

Mitsubishi FR-E 540 EC installation manual

Black & Decker

Black & Decker BDI750 instruction manual

Xantrex

Xantrex Freedom XC 2000 owner's guide

Surtek

Surtek IC5400 User manual and warranty