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PIKA X7601 Installation Manual

Islanding inverter
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Installation Manual
Pika Islanding Inverter
X7601/X7602/X11402
Part of the Pika Energy Island™
M00008-15

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  • Page 1 Installation Manual Pika Islanding Inverter X7601/X7602/X11402 Part of the Pika Energy Island™ M00008-15...
  • Page 2 Islanding Inverter Serial Number: RCP Number:...
  • Page 3 All information in this document is subject to copyright and other intellectual property rights of Pika Energy, Inc. This material may not be modified, reproduced or copied, in whole or in part, without the prior written permission of Pika Energy, Inc. and its licensors. Additional information is available upon request.

  • Page 4: Table Of Contents

    Table of Contents Table of Contents Section 1: Introduction About This Manual Symbols used in this Manual About Pika Islanding Inverters: X7601/X7602/X11402 Section 2: Safety Specifications General Warnings Safety Shutdown Section 3: Operational Modes Overview Grid Connect Self Supply Clean Backup...
  • Page 5 External Transfer Switches Multiple Inverter Installations Grid Connect Mode Backup Modes (Priority and Clean Backup) Self Supply Connecting Non-Pika Energy Equipment Approved Accessories for X7601/X7602/X11402 Revenue Grade Metering Current Transformers External Transfer Switches Section 8: Commissioning and Setup Commissioning the System Connecting Ethernet and REview™...
  • Page 6 Section 11: Troubleshooting Inverter States and Events Events and Errors Recovery From an Error State Service Technical Support Information Section 12: Technical Reference Terminal Torques Wire Sizing Section 13: Specifications Quick Reference Detailed Ratings Section 14: Notes X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 7 X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 8: Section 1: Introduction

    This Installation Manual provides instructions and recommendations for installing and commissioning Pika Islanding Inverters (X7601/X7602/X11402) for simplified solar-plus-storage. Pika Islanding Inverters are storage-ready inverters that connect to Pika PV Link™ DC optimizers and smart batteries to form a Pika Energy Island™ system.

  • Page 9: About Pika Islanding Inverters: X7601/X7602/X11402

    Pika Energy equipment. For more information about REbus, visit pika- energy.com. In the diagram below, an X7601 is directly connected to PV Link optimizers and high voltage lithium ion storage on the DC (REbus) line, shown the the left of the inverter. To the right of the inverter are AC lines: 240VAC for grid and home loads, and critical load support up to 50A.

  • Page 10: Section 2: Safety Specifications

    FOR A LIST OF AUTHORIZED INSTALLERS IN YOUR REGION. SHOCK RISK: HIGH VOLTAGE ELECTRICITY WARNING: Before installing the Pika Energy Island, read all instructions and caution markings in this guide and installation manual. Consult installation documentation for all other REbus devices on the system.

  • Page 11: Safety Shutdown

    Section 2: Safety Specifications Safety Shutdown The Pika Energy Island system can signal to connected devices on REbus to shut down and limit output voltage to a safe level. The red Safety Shutdown button on the front of X7601/X7602/X11402 activates a Safety Shutdown. An external shutdown button may also be installed, given appropriate labeling.

  • Page 12: Section 3: Operational Modes Overview

    Batteries are not required for Grid Connect Mode. For applications in which batteries will be connected to the Pika Energy Island at a later date, operate in Grid Connect mode until batteries are installed.

  • Page 13: Self Supply

    If more power is being produced by the solar array than is needed by local loads, X7601/X7602/X11402 will store energy in the battery for later use [Fig. 2.1]. If the battery is full and a surplus of power is available, that surplus is exported to the grid [Fig. 2.2]. When local demand exceeds available solar-generated power (e.g.

  • Page 14: Priority Backup

    Zero Export In some markets, solar PV systems are prohibited from back-feeding the AC grid at all. For these applications, use Zero Export mode. This is a subset of Self Supply mode. The key difference is X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 15: Selecting An Operational Mode

    Zero Export mode, when the batteries are full and there are no loads, rather than sending excess power to the grid, the Pika Energy Island will limit power generation such that it matches the power consumed by local loads resulting in no exported power. Current transformers are required for this mode.

  • Page 16: Section 4: Installing The Inverter

    Section 4: Installing The Inverter Proper installation will allow your inverter to operate safely for many years. Pika Islanding Inverters are NEMA 3R rated for outdoor or indoor installation. X7601/X7602/X11402 is intended for upright wall mounting only. Do not mount in any other orientation.
  • Page 17 8.5” 8” Wall 24.5” 28.5” 8” 36” 28” Floor Fig 5. X7601/X7602/X11402 Mounting Clearances Bracket Screws x 2 Wall Screws x 2 1. Install Bracket 2. Hang Inverter on Bracket 3. Install Internal Mounting Screws Fig 7. X7601/X7602/X11402 Hanging Bracket...

  • Page 18: Electrical Connections

    X7601/X7602/X11402’s packaging. Other mounting hardware of equal or greater strength may be used to mount Islanding Inverters. Pika Islanding Inverters are designed to be mounted upright on a vertical wall only. Observe all mounting clearances as shown. Install X7601/X7602/X11402 in a location that has sufficient...

  • Page 19: Overview Of Wiring Connections

    (supplied from the grid). The critical load output is protected by an integrated 50A breaker. Below is an example of a Pika Energy Island system consisting of the X7601 inverter, four S2501 PV Links and an advanced high voltage battery (380VDC storage).

  • Page 20: Wiring Procedures

    +/- 200VDC Terminal Terminals - 12V Max 120/240VAC Fig 9. X7601/X7602/X11402 Islanding Inverter wiring compartment Wiring Procedures WARNING: Verify all system voltages are safe before wiring. Even with AC and DC sources disconnected live voltage may still be present. Ensure no dangerous voltages are present on conductors and terminals before wiring.

  • Page 21: Knockout Dimensions And Locations

    Reducing washers may be used to accommodate smaller conduit sizes. To maintain the integrity of X7601/X7602/X11402’s NEMA 3R enclosure, use raintight or wet locations hubs that comply with the requirements in the standard for conduit, tubing, and cable fittings (UL514B).

  • Page 22: Grounding

    COMMUNICATION. PV LINK ENCLOSURES MUST BE GROUNDED FOR REBUS COMMUNICATION. Grounding Input and output circuits from X7601/X7602/X11402 are isolated from the enclosure. The neutral line is not bonded to ground within the enclosure. Refer to NEC 250.24 for grounding and bonding practices.

  • Page 23: Dc Wiring

    X7601/X7602/X11402. DC Wiring X7601/X7602/X11402’s DC wiring terminals connect to four two-pole DC circuit breakers. DC terminals and breakers are labeled RE1-RE4. DC wiring terminals are rated for -40 to +130°C and accept 6-18AWG (0.75mm-10.00mm) conductors. DC breakers indicate state and are accessible behind a tool-less hinged cover.

  • Page 24: Dc Breaker Sizes And Selection

    DC Breaker Sizes and Selection Four two-pole 600VDC rated Carling CX DC (magnetic-hydraulic) circuit breakers (UL489, UL489B listed) are included in the X7601/X7602/X11402 enclosure. These breakers serve as means of disconnect as well as overcurrent protection devices (OCPD) for DC circuits connected to Islanding Inverters.

  • Page 25: Accessory Wiring

    Fig 11. AC Terminal Block Refer to all applicable codes and regulations when connecting the AC output of X7601/X7602/X11402 to AC distribution equipment. Applicable sections of the NEC may include Article 702, Article 705, 690.7 through 690.10, and 408.36(D). Accessory Wiring...

  • Page 26: Accessory Supply Voltages

    Fig 12. X7601/X7602/X11402 Accessory Terminal Block Accessory Supply Voltages X7601/X7602/X11402 includes isolated 12V (0.5A max) and 5V (0.5A max) lines for powering and driving accessory devices such as transfer switches or external communication modules. One terminal is provided for each supply and several ground connections are available on the accessory terminal block.

  • Page 27: Can Bus And Modbus

    Installation of CTs in the main panel is often a convenient choice. Connect leads from each sensor to the corresponding CT +/- terminals. The inverter will automatically detect the polarity and orientation of both current X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 28: External Safety Shutdown Switch

    Grid sense and auxiliary relay connections are terminated via a 3-position connector. The connector accepts 30 AWG minimum and 12 AWG maximum wire. Torque grid sense and auxiliary relay terminations to a minimum of 0.4Nm(3.5 lb-in), not exceeding 0.6Nm (5.3 lb-in). X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 29: Relay Output

    Relay state is described by the table below. A delay occurs once grid voltage is established with minimum on and off times defined in seconds by setpoints “ExtTransMinON” and “ExtTransMinOFF”. Relay State Table Relay Function Grid Voltage Present Grid Voltage Below Threshold NC Output Open Closed NO Output Closed Open X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 30: Grid Sense Lines

    (see "Installer Tools" on page 50). No data logging or other software is accessible by the user from the USB port. USB connection is intended for installer and service technician use only. The USB port is unrelated to user-facing monitoring and is NOT used for connecting to Pika Energy’s REview™ online monitoring dashboard. Ethernet Connectivity X7601/X7602/X11402 connects to the internet through an ethernet (RJ45) jack on the inside of the wiring compartment.
  • Page 31 Section 4: Installing The Inverter this page intentionally left blank X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 32: Section 5: Compliance

    Green or bare wire Safety Shutdown X7601/X7602/X11402 is equipped with a Safety Shutdown function, intended for use in rapid shutdown (NEC 690.12) systems. Pressing and holding the “Safety Shutdown” button located on the front cover of the inverter will initiate a Safety Shutdown. Upon entering a Safety Shutdown, the inverter sends a shutdown signal to all connected devices on the REbus DC nanogrid until DC power to the inverter is lost.

  • Page 33: Voltage And Frequency Trip Thresholds

    Default # of Threshhold Hz Over/ # of cycles of nominal) Cycles Under Nominal 999* † *Value of 999 indicated a disabled threshold for voltage trips Value of zero indicates a disabled threshold for frequency trips † X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 34: Section 6: Batteries

    Connecting Batteries to X7601/X7602/X11402 Section 6: Batteries The Pika Energy Island is compatible with high voltage “smart batteries” that feature integrated power regulators and battery management systems. Contact Pika Energy for questions regarding specific battery model compatibility. Connecting Batteries to X7601/X7602/X11402 All high voltage batteries should be connected to an appropriately rated DC breaker for over current protection.
  • Page 35 Section 6: Batteries this page intentionally left blank X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 36: Section 7: System Configurations

    In Grid Connect Mode, Islanding Inverters may be installed to either a 240V (split-phase) service or 208V three-phase service depending on model. In a 240V configuration, a X7601/X7602 can output 7.6kW of AC power. In a 208V three-phase configuration, a X11402 can output 11.4kW of AC power.

  • Page 37: Critical Loads Panel

    Fig 20. Single Inverter Backup Installation Critical Loads Panel A critical loads panel may be installed at the same time as an X7601/X7602/X11402. In a grid connected system, the critical loads panel is optional, but allows for the easy addition of batteries at a later date.

  • Page 38: Current Transformers

    Do not attach current transformers to critical loads output. Install current transformers on the hot lines of a 120/240V or 208V 3-phase service. See “Current Transformers” on page 26 for wiring and installation details. X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 39: Required Equipment

    Required Optional When installing a Pika Energy Island in Grid Connect Mode with the intent to add batteries later, consider including a critical load panel as part of the original installation. This will facilitate later conversion to one of the battery-based configurations. An integrated 50A breaker is incorporated into X7601/X7602/X11402 to support the critical loads panel.

  • Page 40: External Transfer Switches

    When the system enters backup mode (priority or clean backup) the transfer switch will disconnect from the grid and the main panel will be supplied from the critical load output on the X7601/X7602/X11402. When grid service returns, the inveter will toggle the transfer switch and resume grid-tied operation.

  • Page 41: Multiple Inverter Installations

    Section 7: System Configurations X7601/X7602/X11402 is capable of driving 12V transfer switch coils. The “TRANS” output (open drain) can be used in conjunction with the 12V supply to change state of the transfer switch. X7601/X7602/X11402 supports use of the Generac GenReady 200A automatic transfer switch.

  • Page 42: Backup Modes (Priority And Clean Backup)

    Multiple Inverter Installations PV Array Fig 22. Grid Connect AC Parallel Inverters Backup Modes (Priority and Clean Backup) For configuring a system in backup modes with multiple inverters, contact Pika Energy for application-specific support. X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 43: Self Supply

    For increased capacity in Self Supply Mode, multiple inverters may supply the same AC loads. However, multiple sets of current transformers may be used for sensing grid current in order to prioritize renewable power. Contact Pika energy for help planning a multi-inverter installation in self-supply mode.

  • Page 44: Connecting Non-Pika Energy Equipment

    REbus is designed to integrate Pika Energy equipment. All Pika Energy devices can connect to each other on REbus. Pika Energy inverters and converters can be AC-coupled and DC- coupled to many other manufacturers’ equipment. However, Pika Energy equipment (including X7601/X7602/X11402) cannot connect to non-Pika Energy DC optimizers, non-Pika Energy battery chargers, or non-Pika Energy wind turbines.

  • Page 45: Approved Accessories For X7601/X7602/X11402

    Section 7: System Configurations Approved Accessories for X7601/X7602/X11402 Revenue Grade Metering Islanding Inverters are compatible with multiple revenue grade metering options. Contact Pika Energy for recommended equipment based on the size and location of the installation. Current Transformers Current transformers can be used to sense current flowing to and from a service in order to inform operation of the X7601/X7602/X11402 in self supply mode.

  • Page 46: Section 8: Commissioning And Setup

    After successful installation and wiring of X7601/X7602/X11402 and the Pika PV Link optimizers, the Pika Energy Island system is ready to be commissioned. As many installations have unique parameters, it is important to select the most optimal system mode for each installation.
  • Page 47 “Connecting Ethernet and REview™” on page 48) Enabling Devices All Pika Energy Island devices are enabled and configured individually through the inverter . Before enabling other devices (PV Link™, etc.), Enable the inverter. Follow these same steps to enable other devices on the system.
  • Page 48 Selecting and Activating Operational Modes Consult “Operational Modes Overview” on page 11 and “System Configurations” on page 35 for guidance on selecting the correct operational mode for X7601/X7602/X11402. To select an operational mode: While viewing the home screen, press the center button.

  • Page 49: Connecting Ethernet And Review

    Arrow right and press the center button to select “Confirm.” [Fig. 41] The X7601/X7602/X11402 will now be in the new operational mode. Confirm that the mode listed at the top of the ICM screen is the desired mode. [Fig. 43] Fig.
  • Page 50 All Pika Energy products use REview, a performance monitoring program developed by Pika Energy and embedded in all REbus nanogrid systems. Each Pika Energy Island has its own REview dashboard that collects and reports system performance data at 20-second intervals.

  • Page 51: Installer Tools

    Section 8: Commissioning and Setup Installer Tools Installer Portal Installers may log onto Pika Energy’s Installer Portal for access to technical documents, software updates and other important information. To register and log in, visit: pika-energy.com/portal If you need assistance logging into the Pika Installer Portal, please contact Pika Energy.

  • Page 52: Section 9: Warranty And Intended Use

    Any use other than the specified intended use shall not be deemed intended or normal use, and may result in property damage, personal injury or death. Pika is not liable for damage or injuries caused by unintended use. Damage caused by unintended use is at the sole risk of the operator.
  • Page 53 X7601/X7602/X11402 Islanding Inverter: The Warranty Period for the Pika Energy Islanding Inverter is ten (10) years. The Limited Warranty commences on the earlier of either a) the date of Product installation or b) three [3] months after Pika Energy ships the Product.
  • Page 54 Damage due to abuse, misuse or negligence of the installer or end user; Force majeure (including overvoltage, lightning, storm, fire, action of third parties), or other events beyond Pika Energy’s reasonable control or not arising from normal operating conditions. Damages due to improper installation, including but not limited to lack of proper grounding;...
  • Page 55 Because performance varies by season and location, Pika Energy does not guarantee a specific level of productivity. Pika Energy does not warrant or represent that the Product does not infringe any intellectual property rights of third parties. No employee, agent, dealer, or other person is authorized to offer warranties on behalf of Pika Energy.

  • Page 56: Section 10: Service And Maintenance

    SE40 DRAWING IS THE SOLE PROPERTY OF FINISH PIKA ENERGY LLC. ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF PIKA ENERGY LLC SCALE: 1:2 WEIGHT: IS PROHIBITED. DO NOT SCALE DRAWING X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 57: Replacing The Fan

    Section 10: Service and Maintenance Replacing the Fan If X7601/X7602/X11402 is operating in a dusty environment, the intake and exhaust ports of the unit should be inspected monthly. The intake filter screen may be removed and cleaned in water. Dry the filter completely before re-installation. A small vacuum cleaner may be used around the exhaust vent of the unit to remove residual dust.

  • Page 58: Replacing Fuses

    Pika Inverter Model Fuse Rating Fuse Model Number X7601 30A 500V DC Littelfuse: 0505030.MXP X7602 40A 600V AC/DC Ferraz: A60Q40-2 X11402 40A 600V AC/DC Ferraz: A60Q40-2 X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 59: Battery Maintenance

    DO NOT SCALE DRAWING CAUTION: Never replace the fuse with a different size or style. Failure to follow these instructions could void X7601/X7602/X11402’s warranty. See either the table on page 57 or the fuse label on your inverter’s Power Core...

  • Page 60: Section 11: Troubleshooting

    “Enable” and “Disable” command from the LCD screen. If the unit is unable to be accessed, but is connected to the internet, call Pika Technical support at (207) 887-9105 for assistance in resetting an error state.

  • Page 61: Technical Support Information

    Islanding Inverters feature a replaceable fan and technician-replaceable fuses and capacitor board. No other parts of X7601/X7602/X11402 are intended for technician replacement. If X7601/X7602/X11402 fails, first contact Pika customer service at (207) 887-9105 for troubleshooting help. See “Warranty and Intended Use” on page 51 for details on terms and conditions for repair or replacement under warranty.

  • Page 62: Section 12: Technical Reference

    @ 14kW Ampacity 1512 ft 756 ft 504 ft 378 ft 302 ft 252 ft 216 ft 951 ft 476 ft 317 ft 238 ft 190 ft 597 ft 299 ft 199 ft 377 ft 188 ft X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 63 Section 12: Technical Reference this page intentionally left blank X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 64: Section 13: Specifications

    Temperature Range -20 to +50 ºC Weatherization rating NEMA 3 R Enclosure Material Powder-Coated Steel Size (H x W x D) 622 x 489 x 203, (24.5 x 19.25 x 8) mm, (in) Warranty 10 years standard X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 65: Detailed Ratings

    Trip voltage and frequency limits this manual Trip Voltage Accuracy Trip Time Accuracy 2% +/-2 cycles Normal operation temperature range Output power temperature derating and maximum full power operating ambient Peak Efficiency 97.5 CEC Weighted Efficiency X7601/X7602/X11402 Installation Manual M00008-15...

  • Page 66: Section 14: Notes

    Section 14: Notes Use the following pages to record notes about your system or to document phone calls with our service department, available M-F 9AM-5PM ET at 207-887-9105. X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 67 Section 14: Notes X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 68 X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 69 Section 14: Notes X7601/X7602/X11402 Installation Manual M00008-15...
  • Page 72 35 Bradley Drive #1 Westbrook Maine 04092...

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X7602X11402

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