Ampt V1000 String Optimizer Installation Manual 57070009-1 v20151023 hdpv.
Copyright 2015 Ampt LLC. All rights reserved. No part of this document may be reproduced, retransmitted, or copied in any form without the expressed and written permission of Ampt. Read This First This document contains information needed to install and commission an Ampt optimizer (including Smart String Technology™ optimizers, String Stretch® optimizers, Ampt Mode® optimizers, and String View® optimizers) within a grid-tied photovoltaic (PV) installation.
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.
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.
Table of Contents Read This First ...............................................................................................................................3 Important Safety Information ..............................................................................................................................3 Safety Message Types ..........................................................................................................................................4 General Safety ................
Uninstalling an Optimizer from the Array ..................................................................................... 27 Steps ...................................................................................................................................................................27 Appendix ............................................................................................................................. 28 Compliance ............................................................
Chapter 1: Introduction Chapter 1: Introduction General Description Ampt String Optimizers are DC/DC converters that feature String Stretch technology and place dual MPP trackers on each string. String Optimizers are used in conjunction with inverters operating in Ampt Mode® to deliver differentiated value. String Stretch – Ampt's patented String Stretch technology puts output voltage and current limits on each string.
Dimensional Drawings The dimensions for the string optimizer shown below are in millimeters and inches.
Chapter 1: Introduction Physical Overview Grounding stud (10-32) x 2 Mounting holes (6.5 mm) x 6 Input A connectors Input B connectors Output connectors Figure 1: Physical overview of the string optimizer. Bar Code Label The image below shows the bar code label with model and serial numbers. Bar code label Figure 2: Bar code tag with the model and serial numbers. © Ampt, LLC. All rights reserved.
Specifications Model Number V850-12 V875-12 V900-12 V925-12 31570014-0850 31570014-0875 31570014-0900 31570014-0925 Electrical Input Maximum input string voltage 1 V 1000 1000 1000 1000 Maximum input string current 2 A 11.5 11.5 11.5 11.5 V 400 – 850 400 – 850 400 – 850 400 – 850 2 2 2 2 kWp 10 – 13 10 – 13 10 – 13 10 – 13 Output voltage range V 0 – 850 0 – 875 0 – 900 0 – 925 Maximum output current A 12 12 12 12 kWdc 9.7 10.0 10.3 10.
Chapter 1: Introduction Model Number V950-12 V975-12 V1000-12 31570014-0950 31570014-0975 31570014-1000 Electrical Input Maximum input string voltage 1 V 1000 1000 1000 Maximum input string current 2 A 11.5 11.5 11.5 V 400 – 850 400 – 850 400 – 850 2 2 2 kWp 10 – 13 10 – 13 10 – 13 Output voltage range V 0 – 950 0 – 975 0 – 1000 Maximum output current A 12 12 12 kWdc 10.9 11.2 11.
Chapter 2: Understanding String Optimizer Installation Chapter 2: Understanding String Optimizer Installation Overview Ampt String Optimizers distribute MPPT throughout the array and add voltage and current limits to each string. These features allow systems with Ampt to go beyond the limitations of traditional system design.
Distinguishing Input Strings from Strings Each Ampt String Optimizer has two inputs. Modules connected to either Input A or Input B of the optimizer are referred to as input strings. In this manual, the term string refers to the circuit consisting of the optimizer as well as all of the modules on the input strings as illustrated below. The string lengths shown are representative only. Input String String Figure 3: An input string is highlighted on Input A of String Optimizer 1.
Chapter 2: Understanding String Optimizer Installation Unacceptable Input String Configurations The figure below illustrates input string configurations that do not meet the criteria described in the section above. Input string A is not longer than input string B Input string A is longer than input string B by more than one module Figure 5: Unacceptable input string configurations.
Understanding Electrical Connections The electrical connection of the string optimizer is done after mounting and grounding the unit. The electrical connections depend on the grounding configuration of your PV system. Ungrounded PV Systems Figure 7: Electrical connections for an ungrounded PV system. Grounded PV Systems Figure 8: Electrical connections for a grounded PV system (similar fusing is used for a positively grounded system).
Chapter 2: Understanding String Optimizer Installation Understanding Cabling Connectors The figure below shows the mating connectors and polarities for the input and output of the String Optimizer. to combiner/inverter Figure 10: Mating connectors and associated polarity for the two inputs and the output of the String Optimizer © Ampt, LLC. All rights reserved.
Chapter 3: Installing the Ampt String Optimizer Chapter 3: Installing the Ampt 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 hardware you will need varies on the type of PV module mounting rail you have.
Mounting and Grounding the String Optimizer WARNING Read the warning statements below: Installation should be performed only by qualified persons. Installers should assume the risk of all injury that might occur during installation including, without limitation, the risk of electric shock. Follow your safety procedures and protocols.
Chapter 3: Installing the Ampt String Optimizer Making Electrical Connections WARNING Read the warning statements below: Installation should be performed only by qualified persons. Installers should assume the risk of all injury that might occur during installation including, without limitation, the risk of electric shock. Follow your safety procedures and protocols. Do not make or break connections under load.
4. Connect the appropriate cables to the output (OUT) of the String optimizer. See Understanding Electrical Connections on page 18 and Understanding Cabling Connectors on page 19. to combiner/inverter Figure 12: Connecting the output connectors 5. Ensure the planned input string connections meet the acceptable criteria. See Understanding Input String Configurations on page 16. 6. Connect the modules in series for each input string by following your procedures and safety protocols. 7.
Chapter 3: Installing the Ampt String Optimizer 9. Connect input string B to the Input B terminal (IN B) of the String Optimizer. to combiner/inverter Figure 14: Connecting Input B (In B) 10. Ensure that the locking mechanisms on all connectors are fully engaged. to combiner/inverter Figure 15: Verify that the connectors are fully engaged © Ampt, LLC. All rights reserved.
Verifying Electrical Connections WARNING Installation should be performed only by qualified persons. Installers should assume the risk of all injury that might occur during installation including, without limitation, the risk of electric shock. Follow your safety procedures and protocols. WARNING Do not make or break connections under load. NOTICE Because Ampt String Optimizers alter the I-V curve of the array, curve tracers are not recommended during commissioning. Verify String Voltages: 1.
Chapter 3: Installing the Ampt String Optimizer Uninstalling an Optimizer from the Array WARNING Read the warning statements below: Maintenance should be performed only by qualified persons. Maintenance personnel should assume the risk of all injury that might occur during installation including, without limitation, the risk of electric shock. Follow your safety procedures and protocols. Do not perform any servicing other than that specified in these instructions.
Appendix Compliance *** The box is not meant to be user serviced or opened in any way. *** Model Numbering System The model numbers for Ampt V1000 String Optimizers are in the following format: 31570014-xxxx. 28 “31570014” denotes V1000 series “xxxx” is the maximum output voltage for that model.
Appendix Markings V850-12 V875-12 V900-12 V925-12 31570014-0850 31570014-0875 31570014-0900 31570014-0925 1100 1100 1100 1100 350 – 900 350 – 900 350 – 900 350 – 900 11.5 11.5 11.5 11.5 0 – 850 0 – 875 0 – 900 0 – 925 12 12 12 12 Maximum continuous output power (W) 9700 10000 10300 10600 Enclosure type IP 66 IP 66 IP 66 IP66 V950-12 V975-12 V1000-12 31570014-0950 31570014-0975 31570014-1000 1100 1100 1100 350 – 900 350 – 900 350 – 900 11.5 11.5 11.
FCC Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment complies with radiation exposure limits set forth for uncontrolled environment.
Appendix Avis IC 31570014 a été testé et entre dans la catégorie des appareils numériques de Classe B, selon la Section 15 de la réglementation de la IC. Ces limites ont été conçues pour protéger les installations domestiques contre les interferences néfastes. Cet équipement génère, utilise et émet de l'énergie sous forme de fréquences radio et, en cas de non-respect des instructions d'installation et d'utilisation, risque de provoquer des interférences radio.
Ampt, LLC 4850 Innovation Drive Fort Collins, CO 80525 970-372-6950 Technical Support: support@ampt.
