Ampt -CU Installation Manual

Communications unit

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Manual 
Ampt Communications Unit 
Installation Manual
57070008‐1 20141110

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Summary of Contents for Ampt Ampt-CU

  • Page 1     Manual  Ampt Communications Unit  Installation Manual 57070008‐1 20141110...
  • Page 3: Information And Disclaimer

    The following specifications are 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.
  • Page 4: Important Safety Information

    A warning identifies a hazard to equipment or personnel. It calls attention to a procedure or practice, which, if not correctly performed, could result in damage to or destruction of part or all of the Ampt equipment and/or other equipment connected to the Ampt equipment or personal injury.
  • Page 5: Table Of Contents

      General Description ......................... 7  Specifications  ........................... 8  Modbus Register Map  ........................ 9  Dimensional Drawing  ........................ 10  Physical Overview  .......................... 10    Labels .................................  1 0   Internal  ................................  1 1 Understanding the Status LEDs ...................... 12  Chapter 2:  Installing the Ampt‐CU .................. 13   Installing the Ethernet Cable Feed‐through .................. 14  Mounting the Enclosure  ......................... 16  Connecting Power over Ethernet .................... 17  Configuring the Ampt‐CU Network Settings ................... 18  Restoring Factory Defaults ...................... 19  Appendix .......................... 21   Compliance  ............................ 21   ...
  • Page 7: Chapter 1: Introduction

    The Ampt communications unit (Ampt-CU) provides wireless two-way communication with every Ampt converter The Ampt-CU links to your SCADA or monitoring system via Modbus to provide highly accurate and synchronous data. This solution eliminates the need for smart combiners which lowers costs.
  • Page 8: Specifications

    Specifications  System Layout    PV block size   Up to 3200 kWp DC Ampt converters per Ampt‐CU  Up to 2000 Example of layout   125 strings x 16 modules/string = 2000 Ampt converters  Maximum radio communications  200 m radius  operating range  Data Communications    Interface with data monitoring system  Modbus / TCP Connection with data monitoring  Ethernet 10/100 Base T Interface with Ampt converters  Two‐way wireless Resolution    Measurement accuracy  Amperage: ±0.25% Reporting rate, typical  5 minutes, 2000 converters Local data storage  45 day rolling buffer Electrical    Power supply  Power over Ethernet (PoE)  Power over Ethernet (PoE)  Class 0, 802.3af Modes A and B, 802.3at Type 1 (RJ‐45 connector) Mechanical    Enclosure ...
  • Page 9: Modbus Register Map

    Chapter 2: Installing the Ampt-CU Modbus Register Map  Ampt StringView records use the SunSpec protocol for device ID and variable record length, enabling site-specific operation. The SunSpec Common Model precedes the map below. Contact Ampt or one of our monitoring partners for more information.
  • Page 10: Dimensional Drawing

    Dimensional Drawing  Figure 1: Ampt‐CU dimensional drawing  Physical Overview  Labels  Serial and model  number label  MAC address label  Figure 2: Serial number, model number, and MAC address labels ...
  • Page 11: Internal

    Chapter 2: Installing the Ampt-CU Internal  Reset button Restore button Power LED Com LED Fault LED Ethernet port Cable locks RS‐485 port and  Term switch  Figure 3: Interface panel  Component  Description  Ethernet port  RJ‐45 connector for Power over Ethernet (PoE) and Ethernet communication.   RS‐485 port  Reserved for engineering use Termination switch  Reserved for engineering use. Reset button  Pressing this button forces the Ampt‐CU to reboot. Restore button  This button restores the network settings and password back to their factory default  values. See Restoring Factory Defaults on page 19 for more detail.  Power LED  This green LED is on continuously when the input voltage is above the minimum  threshold.  Com LED  This LED displays boot status. Fault LED  This red LED communicates fault conditions. Cable locks  Route the input power and communication cables through these guides. ...
  • Page 12: Understanding The Status Leds

    Understanding the Status LEDs  The Ampt-CU has three status LEDs. When input power is first applied to the Ampt-CU, all LEDs are on continuously for several seconds. Then the Com LED flashes amber while software is booting. Once boot up is complete and the Ampt-CU is operating normally, both the Power and Com LEDs are on solid green.
  • Page 13: Chapter 2: Installing The Ampt-Cu

    Chapter 2: Installing the Ampt-CU     Chapter 2:     Installing the Ampt‐CU This chapter addresses the following topics:  Installing the Ethernet Cable Feed-through  Mounting the Enclosure  Connecting Power Over Ethernet  Configuring the Field Computer Network Settings  Restoring Factory Defaults...
  • Page 14: Installing The Ethernet Cable Feed-Through

    Installing the Ethernet Cable Feed‐through  A liquid-tight wire grip is recommended for the Ethernet cable feed-through. The markings on the bottom of the unit show where to make a hole for the wire grip. Install liquid‐tight  wire grip in this area  Figure 4: Bottom view of the communication unit  1. Make sure the communication unit is not powered up. 2.
  • Page 15 Chapter 2: Installing the Ampt-CU 3. Install your wire grip. An example is shown below. Figure 6: Example of an installed liquid‐tight wire grip    Copyright 2014 AMPT, LLC. ...
  • Page 16: Mounting The Enclosure

    4 each ¼ STD split lock washer 18-8 SS (Grainger 1NY97 or equivalent) 4 each ¼ STD flat washer 18-8 SS (Grainger 1NU48 or equivalent) 1 each Ampt-CU 4 each 1 hole washer, flat plate fitting (1-5/8” series) Unistrut P1062 EG or equivalent (McMaster Carr 3133T11 or equivalent) 2 each Unistrut or Kindorf 1-5/8”...
  • Page 17: Connecting Power Over Ethernet

    Chapter 2: Installing the Ampt-CU Connecting Power over Ethernet  You will need to use a PoE injector that meets the requirements in the Specifications section on page 8. The diagram below illustrates the basic installation of a PoE injector; however, be sure to follow the installation instructions that comes with your PoE device.
  • Page 18: Configuring The Ampt-Cu Network Settings

    IP Address - 192.168.1.248 b. Netmask - 255.255.255.0 2. Ensure the Ampt-CU is powered up. The Power LED should be on and solid green. 3. Connect your laptop to the field computer using the Ethernet ports of each device. If using PoE, the PoE injector must be connected between the laptop and the Ampt-CU.
  • Page 19: Restoring Factory Defaults

    The network settings and password can be restored to factory default values by pressing and holding the Restore button during the boot process. If you are using this feature to restore the password, be sure to record your network settings first. See Configuring the Ampt-CU Network Settings on page 18 for more details.
  • Page 21: Appendix

    The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. IMPORTANT! Changes or modifications not expressly approved by Ampt, LLC could void the user’s authority to operate the equipment.
  • Page 22     Ampt, LLC 4850 Innovation Drive Fort Collins, CO 80525 970-372-6950 Technical Support: support@ampt.com...

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