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.
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.
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.
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 ...
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.
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 ...
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. ...
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.
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...
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.
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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. ...
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”...
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.
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.
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.
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.
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Ampt, LLC 4850 Innovation Drive Fort Collins, CO 80525 970-372-6950 Technical Support: support@ampt.com...
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