Xantrex Technology owner manual GT100E MS Combiner Box, Master/Slave Configuration

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Introduction

GT100E MS Combiner Box

The GT100E MS combiner box, when installed with dual GT100Es, allows the GT100E Master/Slave configuration to maximize energy production during periods of low irradiance. A system would consist of two - 100kW inverters, one as the master and the other as a slave, and as a result, the GT100E system will run at greater than 94% efficiency above 20kW.

Master/Slave Configuration

The Master/Slave configuration would be implemented on the DC side of the inverter. The configuration would feed multiple PV arrays into the Master inverter until the irradiance increases and the power reaches the high power threshold of the Master inverter. Once the power reaches the Master inverter's high power threshold, the inverter would shutdown and disconnect from the additional arrays. The Slave inverter would then be enabled and both the Master and the Slave inverter would power up and come on-line. See Figure 1-1 on page 1–4.

The GT100E inverters will have the ability to run in the master/slave configuration or the ability to run independently (stand-alone mode). The inverters will also have the ability to be configured as either the master (configured master) or the slave inverter (configured slave). The inverters also can be set to switch from operational master to operational slave daily.

Difference between Configured Master/Slave and Operational

Master/Slave

Through the front panel or the Xantrex Solar GUI (Graphical User Interface), the user configures an inverter to be either configured master or configured slave. Next, the user sets daily role reversal on or off.

If daily role reversal is off, then the configured master is the operational master (operates as master) and the configured slave is the operational slave (operates as slave).

If daily role reversal is on, then the configured master is operational master on odd days (January 1,3,5,...) and operational slave on even days (January 2,4,6,...).

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Contents GT100E MS Combiner Box for Master/Slave Configuration Page GT100E MS Combiner Box for Master/Slave Configuration Date and Revision Organization Purpose ScopeAudience Conventions Used Related InformationImportant Safety Instructions Page Contents Viii Figures Page Introduction GT100E MS Combiner Box Master/Slave ConfigurationDifference between Configured Master/Slave and Operational Master/Slave Operation States Master UnitMis-configuration of Units Fault ConditionInstallation To unpack the GT100E MS from the shipping pallet Equipment RequiredUnpacking the GT100E MS 1GT100E MS Componenets Mounting Instructions To mount the MS100E combiner box onto a wallCable Installation Wire Gauge and Torque SpecificationsMS100E Connections PV Array and GT100E Connections To make PV Array #1 and GT100E #1 connections 5PV Array #1 and GT100E #1 ConnectionsTo make PV Array #2 and GT100E #2 connections 6PV Array #2 and GT100E #2 ConnectionsGT100E MS Control Power Cable To make GT100E MS Control Power Cable connections8Location of GT100E MS in the GT100E To install the GT100E MS Interface Assembly 9GT100E MS Interface Assembly InstallationTo install the MS100E Interface Assembly Cable To install the MS100E Control Power and Interface CableGT100E Unit Installation To install the MS100E Interface Assembly for GT100E #2Configuration To set a unit up as the Master Unit To set a unit up as the Slave Unit Configuration How do you get service? Limited WarrantyWhat does this warranty cover and how long does it last? What will Xantrex do?Limitations on Exclusions What does this warranty not cover?Exclusions Out of Warranty Service Exclusion for DocumentationWA-4 Page Xantrex Technology Inc
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