Installation Manual Generac PV Link™ 010023 WARNING Loss of life. This product is not intended to be used in a critical life support application. Failure to adhere to this warning could result in death or serious injury. (000209b) Register your Generac product at: https://register.generac.com/ 1-888-GENERAC Register (888-436-3722) your Generac product at: WWW.GENERAC.COM Para español, visita: http://www.generac.com/service-support/product-support-lookup 1-888-GENERAC Pour le français, visiter: http://www.
Use this page to record important information about your Generac Product Record Generac PV Link™ and Generac information for your PWRcell system on this page. SnapRS™ When contacting a Generac Products Authorized Service Dealer (ASD) about parts and service, always supply complete model number and serial number information. Operation and Maintenance: Proper maintenance and care of the energy storage system ensures a minimum number of problems and keeps operating expenses at a minimum.
Table of Contents Section 1: Safety Rules & General Information Section 6: Operating Instructions Introduction ..........................................................1 Commissioning the REbus System ................. 15 Read This Manual Thoroughly ....................................1 Safety Rules .........................................................1 PVRSS Commissioning with SnapRS Devices ............................................................... 15 How to Obtain Service ...............
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Safety Rules & General Information Section 1: Safety Rules & General Information Introduction Thank you for purchasing a Generac PV Link™. The PV Link connects solar photovoltaic (PV) modules to the Generac PWRcell™ Inverter for efficient, safe, and smart transfer of solar generated power. This manual provides instructions for installing PV Link, including mounting and wiring information. It also contains information for installing and commissioning Generac SnapRS™ devices.
Safety Rules & General Information General Hazards DANGER WARNING Automatic start-up. Disconnect utility power and render unit inoperable before working on unit. Failure to do so will result in death or serious injury. (000191) WARNING Risk of injury. Do not operate or service this machine if not fully alert. Fatigue can impair the ability to service this equipment and could result in death or serious injury. (000215) WARNING Loss of life.
Safety Rules & General Information Electrical Hazards Safety Shutdown DANGER DANGER Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury. (000104) DANGER Electrocution. In the event of electrical accident, immediately shut power OFF. Use non-conductive implements to free victim from live conductor. Apply first aid and get medical help. Failure to do so will result in death or serious injury. (000145) DANGER Electrocution.
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General Information Section 2: General Information Specifications Description Units S2502 Rated power W 2500 (continuous) Peak efficiency % 99 MPPT input voltage VDC 60–360 Rated power input voltage VDC 200–360 Maximum input voltage VDC 420 (absolute maximum) Maximum output voltage VDC 420 (open circuit) Nominal output - REbus DC nanogrid (380 VDC + data) Maximum output current A 8 Standby power W <1 Topology - Boost converter Protections - Ground-fault protection, arc-fa
General Information About PV Link PVRSS Information The PV Link is a nonisolated, interleaved DC-DC converter that boosts PV input to a higher voltage and outputs it to Rebus™, Generac’s regulated 380 VDC bus. The PV Link provides droop-mode power management, enabling multiple optimizers to connect in parallel on a common bus, and its DC output carries a bidirectional power line communication (PLC) protocol for communicating with inverters and other devices on REbus.
Installation Design Section 3: Installation Design Installation Design Worksheet Use this worksheet to determine the maximum number of PV modules of a given type that can be connected to a PV Link. NOTE: Fewer PV modules can be used as long as the minimum MPPT input voltage is met. 1. Calculate an adjusted open circuit voltage (VOC) for the module being installed using the applicable NEC cold factor from Table 1: NEC Cold Factor Conversion.
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PVRSS Compliance Guidelines Section 4: PVRSS Compliance Guidelines 2011 NEC and Older Editions 2017 and 2020 NEC The 2011 NEC and older editions do not require any PVRSS compliance. Installation that follows the instructions in this manual is all that is required. The 2017 and 2020 NEC have PVRSS requirements mandating the need to reduce voltages of controlled conductors to less than 80 VDC within the array, as well as some specification for the location of the PVRSS initiator and its labeling.
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Mounting and Connecting Section 5: Mounting and Connecting Hot Surfaces. Locate and install the Generac PV Link so as to avoid inadvertant contact. When operating in hot weather the optimizer will become hot and could result in personal injury. (000670) • Install PV Links close to the edge of the array for CAUTION Equipment damage. Never leave the PV Link MC4 connectors open and exposed to the atmosphere overnight or during rain. Unwired connectors should remain plugged together as originally packaged.
Mounting and Connecting Connecting to Inverter Connecting PV Modules CAUTION CAUTION Equipment damage. Connect the PV Link output to a REbuscompatible device (± 190 VDC nominal regulated DC bus) only. Connecting to conventional PV inverters or any other device could cuase equipment damage. (000659) See Figure 5-3. Connect each PV Link output to the REbus DC nanogrid and inverter. Equipment damage. Never leave the PV Link MC4 connectors open and exposed to the atmosphere overnight or during rain.
Mounting and Connecting 2017 and 2020 NEC Compliant Systems 4. Connect the PV string negative lead with its connected SnapRS device to PV Link (B) at the location marked PV Substring Input - (E). See Component Locations for more information. 5. Secure the SnapRS devices to the racking or module frame using zip ties or a similar fastener. 6.
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Operating Instructions Section 6: Operating Instructions User Interface via Inverter Generac PV Link Information and control features are available on the Generac PWRcell Inverter control panel when REbus is energized. See the Generac PWRcell Inverter Owner’s Manual for more information. See Figure 6-1. To access the device page for each PV Link, use left or right arrow buttons (A) on the inverter control panel to scroll through the pages.
Operating Instructions 7. Complete steps 1-4 for each PV link in the system. 6. See Figure 6-5. The LCD will display Testing PRVSS during the testing process. Upon completion, the LCD will read Low Sun or Making Power, depending upon available PV voltage. NOTE: To verify a PV Link is working properly, navigate to the Mod.Settings page and confirm the SnapRSInstalld value matches the number of SnapRS devices connected to that PV Link. 010033 Figure 6-5.
Operating Instructions Disabling PV Link PVRSS Self-Test IMPORTANT NOTE: Disabling a PV Link does NOT deenergize the PV array if SnapRS devices are not installed. If SnapRS devices are installed, in-array voltages are limited to less than 80 VDC. IMPORTANT NOTE: Disabling PV Link does not deenergize the DC bus if other devices are providing power to the DC bus.
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Maintenance Section 7: Maintenance Service WARNING Equipment damage. Never open Generac PV Link. The optimizer is factory-sealed and contains no fieldserviceable parts. Opening the optimizer could result in equipment damage.
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® Part No. DMAN00013 Rev. A 09/30/19 ©2019 Generac Power Systems, Inc. All rights reserved. Specifications are subject to change without notice. No reproduction allowed in any form without prior written consent from Generac Power Systems, Inc. Generac Power Systems, Inc. S45 W29290 Hwy. 59 Waukesha, WI 53189 1-888-GENERAC (1-888-436-3722) www.generac.
