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Selectronic myGrid Installation Notes

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myGrid
Installation Notes
myGrid Installation Notes
Introduction
myGrid kits provide an easy to install, compliant, Solar Hybrid (On-Grid) or Off-Grid battery
system.
These installation notes outline all the processes required to effectively install each of the
myGrid kit configurations helping the installer to gain the most benefit from using a myGrid kit.
myGrid Installation Overview
There are two major parts to each kit:-
SP PRO or SP PRO GO Interactive Inverter Charger
Battery Enclosure including side mounted DC switchbox
PLUS
The battery enclosure is designed to sit on the floor and the SP PRO or SP PRO GO is wall
mount. Connection points between these two parts have been designed to allow flexibility in
positioning to suit many varied locations.
The battery enclosures in the myGrid kit are modular and each section is called a frame. Each
frame can hold four myGrid batteries. The picture above is a two frame battery enclosure plus
left hand mounted DC Switchbox. The DC Switchbox contains the main battery circuit breaker
and the precharge/battery sense circuit breaker under a protective cover and can be mounted
on either the left hand side or the right hand side of the battery enclosure.
IN0025 - 004952 Revision 05 – 1 of 35
OR
POWER
PERFORMANCE
PASSION

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Summary of Contents for Selectronic myGrid

  • Page 1 Connection points between these two parts have been designed to allow flexibility in positioning to suit many varied locations. The battery enclosures in the myGrid kit are modular and each section is called a frame. Each frame can hold four myGrid batteries. The picture above is a two frame battery enclosure plus left hand mounted DC Switchbox.
  • Page 2 NSTALLATION OCATION The myGrid kit includes short cabling for minimum losses so the SP PRO or SP PRO GO and battery enclosure need to be installed within close proximity of each other. The battery enclosure and the DC switchbox is suitable for installation outside however it is advisable that the installation is somewhat protected from the elements.
  • Page 3 ANAGED IRCUITS When installing a myGrid kit in a Solar Hybrid system rewiring of the installations AC switchboard may be required to split out the load circuits that need to be managed. If all the installation’s load circuits total less than 63 amps (the SP PRO OR SP PRO GO’s feed through capacity) it may be easiest to make all the load circuits (excluding off peak loads like hot water) managed.
  • Page 4 Installation Notes Assemble Battery Enclosure – Part A The kits are shipped ready to be assembled. Each kit comes with the required number of frames to suit the number of batteries supplied. The battery enclosure is modular for ease of assembly and versatility. Each frame is individually assembled before all the assembled frames are bolted together to form the battery enclosure.
  • Page 5 Installation Notes Install Shelfs into Frames  Place the Shelf on to the frame brackets so that the inner face of the upward fold is flush with the inner faces of the frame brackets as shown in Figure 4.
  • Page 6 Installation Notes SSEMBLE RAMES INTO THE NCLOSURE The frames are assembled together to form the complete battery box. Single Frame – skip next step Dual Frame – assemble one frame on top off the other Quad Frame – assemble two Dual Frames side by side Five Frames –...
  • Page 7 Installation Notes Dual Frame Assembly  Place the frame assemblies together as shown in Figure 6. Frames with vents to be at the bottom of the assembly.  Secure to each other using the M6 x 16mm long screws (2 off per side) supplied as shown in Figure 6.
  • Page 8 Installation Notes Quad Frame Assembly  Place the frame assemblies together as shown in Figure 7. Ensure the frames with vents are at the bottom.  Secure frame to frame using the M6 x 16mm screws supplied (4 screws per frame).
  • Page 9 Installation Notes  Insert M6 x 16mm long screws ( 4 off ) into the Battery Frame inserts leaving 3 to 5mm between the screw head and the frame insert. - Refer to enlarged view in Figure 9.  Pass the large holes of the DC Switchbox over the screw heads and allow it to drop onto the screw threads and tighten screws.
  • Page 10 Installation Notes OVERS Locate the Top Cover on the frames so that it overhangs at the rear and the front of the cover is resting on the front edges of the frames as shown in Figure 11a. Move the cover towards the front of the frames to engage the pins on the inside rear of the cover into the inserts in the frames.
  • Page 11 Installation Notes Installing the SP PRO OR SP PRO GO Install the SP PRO or SP PRO GO as per the installation instructions. Verify the position of the battery enclosure is suitable for the supplied length of DC cabling.
  • Page 12 Installation Notes ATTERY ENSE ABLING AND ATTERY EMPERATURE ENSE Disconnect the battery temperature sensor cable from the SP PRO or SP PRO GO expansion card and feed it through with the Precharge / Battery Sense cable (end without M10 Ring lugs) from DC Switchbox to the SP PRO or SP PRO GO via conduit and glands.

  • Page 13: Installing The Batteries

    Installation Notes Installing the Batteries Warning: Batteries are very dangerous. Battery fault currents are 1,000s of amps. Please read and adhere to the safety information provided with the batteries. Safe practices when working with battery systems –  Remove all conductive jewellery or watches before working on batteries.
  • Page 14 Installation Notes Battery Interlink – Parallel Used to series connect between frames of two groups of parallel batteries – two groups of battery positive to two groups of battery negative. Battery Interlink – Series Used to series connect between frames - battery positive to battery negative.
  • Page 15 Installation Notes Battery Clamps The battery G-Clamps lock onto the terminals using an Insulated Ring Spanner. Ensure the nut is loosened so that the clamps can be comfortably seated onto the terminals as shown below – Negative Positive Battery Positive and Negative...
  • Page 16 Installation Notes ATTERY ENSE ABLING ONNECTIONS TO THE ATTERIES The battery sense wires are connected to the batteries after the battery clamps have been fitted and locked into place and before installing the next shelf of batteries. Fit the battery sense connections onto the studs of the associated battery connection and lock in place with one of the 8mm lock nuts (skinny nuts) provided.
  • Page 17 Installation Notes ATTERY ONNECTIONS myGrid 24 VDC 8 kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 3,970 amps Battery Sense -ve (White) Battery Sense Mid (Yellow)
  • Page 18 Installation Notes myGrid 24 VDC 16 kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 7,940 amps Battery Sense -ve (White) Battery Sense Mid (Yellow) Battery Sense +ve (Brown) 8 x 330 Ah 6 VDC blocks in parallel / series combination Each frame –...
  • Page 19 Installation Notes myGrid 48 VDC 16 kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 3,970 amps Battery Sense -ve (White) Battery Sense Mid (Yellow) Battery Sense +ve (Brown) 8 x 330 Ah 6 VDC blocks in series combination Each frame –...
  • Page 20 Installation Notes myGrid 48 VDC 32 kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 7,940 amps Battery Sense -ve (White) Battery Sense Mid (Yellow) Battery Sense +ve (Brown) 16 x 330 Ah 6 VDC blocks in parallel / series combination Each frame –Two parallel 12 VDC groups made up of two series 6 VDC batteries.
  • Page 21 Installation Notes myGrid 120 VDC 40kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 3,970 amps Battery Sense -ve (White) Battery Sense Mid (Yellow) Battery Sense +ve (Brown) 20 x 330 Ah 6 VDC blocks in series combination Right Hand Frames –...
  • Page 22 Installation Notes myGrid 120 VDC 80kWh Battery Connections Warning: Ensure Main Battery and Precharge Circuit breakers are 0 / Off position. NOTE: Battery fault currents are 7,940 amps Battery Sense -ve (White) Battery Sense Mid (Yellow) Battery Sense +ve (Brown) 40 x 330 Ah 6 VDC blocks in parallel / series combination Each frame –Two parallel 12 VDC groups made up of two series 6 VDC batteries.

  • Page 23: Additional Information

    Fit the DC switchbox front cover. IGNAGE Signage applicable to the myGrid system has been included at the end of this manual 1. Spark Hazard warning. One sign for each configuration. Please select the sign applicable to your myGrid configuration.
  • Page 24 Using the Quick Start Wizard found in the SP LINK software (Revision 7.7 and above), configure the SP PRO inverter to suit the myGrid kit and application parameters. The correct myGrid kit can be selected in the Quick Start Wizard along with other system parameters to automatically create a suitable Site File and Configuration File for the SP PRO inverter.

  • Page 25: Warranty

    12 months with Pro rata warranty for five years from date of shipment. Contact GNB Industrial Power for full warranty details for Sonnenschein SB6/330 330AH 6V Gel batteries. Additional Information Selectronic web site – http://www.selectronic.com.au or contact the Selectronic Sales Team. IN0025 - 004952 Revision 05 – 25 of 35 POWER PERFORMANCE PASSION...
  • Page 26 Installation Notes Appendix A OWER ON HECK Items to be checked Checked OK Check all battery clamps are fully seated home Check all battery clamps are locked down Check battery sense connections are correct Use a meter to check the voltage and polarity of the main battery connections on the battery (Red is +ve and Black is –ve).
  • Page 27 Installation Notes ABLE LOSS CHECK Power up inverter with the AC source turned off. Apply a load of at least 2kW to the inverter and check the “Cable Loss” reading (see below) to be less than 1% of load power for a 24V system and less than 0.5% of load power for a 48V systems.
  • Page 28 Installation Notes Appendix B DC S – L WITCHBOX AND TO IGHT To change the mounting of DC Switchbox from mounting on the Left side to Right side of the Battery Enclosure -  Remove the Main cover from the left hand side of the housing. (4 screws) - Figure A1 ...

  • Page 29: Shutdown Procedure

    Shutdown Procedure myGrid Shutdown Procedure Step Action Result  Press and hold ON button.  Output Mode indicator is now OFF - Inverter is Idle and will not export or provide any backup supply.  Charging Mode, Battery and Alarm indicators will remain On.

  • Page 30: Battery Bank

    Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 24 Volts Maximum FAULT CURRENT – 3,970 Amps Battery Type: Sonnenschein SB6/330 A (4 x 330 Ah 6V in series)
  • Page 31 Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 24 Volts Maximum FAULT CURRENT – 7,940 Amps Battery Type: Sonnenschein SB6/330 A (8 x 330 Ah 6V in series/parallel)
  • Page 32 Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 48 Volts Maximum FAULT CURRENT – 3,970 Amps Battery Type: Sonnenschein SB6/330 A (8 x 330 Ah 6V in series)
  • Page 33 Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 48 Volts Maximum FAULT CURRENT – 7,940Amps Battery Type: Sonnenschein SB6/330 A (16 x 330 Ah 6V in series/parallel)
  • Page 34 Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 120 Volts Maximum FAULT CURRENT – 3,970 Amps Battery Type: Sonnenschein SB6/330 A (20 x 330 Ah 6V in series)
  • Page 35 Battery Bank WARNING : SPARK HAZARD Follow shutdown procedure before connecting or disconnecting any equipment. Nominal BATTERY VOLTAGE - 120 Volts Maximum FAULT CURRENT – 7,940 Amps Battery Type: Sonnenschein SB6/330 A (40 x 330 Ah 6V in series/parallel)