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Photovoltaic Modules with Corresponding Micro-inverter Sub-Panel (Essential Loads) ON ON OFF ON ON OFF OFF ON ON OFF ON OFF ON OFF ON OFF OFF OFF 120/240VAC @60HZ 120/240VAC @60Hz AC Transfer Inside ON Magnum Energy Battery-Based Standalone Inverter (MS-PAE Series) IN OUT OFF ON ON ON OFF ON OFF ON OFF ON ON OFF OFF ON ON OFF OFF OFF Main Utility Panel 1. This diagram is provided to show the installation of a Magnum inverter that is AC coupled to a batteryless Utility-Interactive inverter. Most of the ground connections were omitted for clarity. 2. To prevent damage to Magnum’s battery-based inverter, the power rating of the Photovoltaic Array must be 90% or less than the continuous power rating of the Magnum inverter. 3. The AC Couple Support Mode feature is only available in the MS-PAE Series with software revision 4.1 or higher, and is enabled using an optional remote control with the “custom” battery type setting. 4. When enabled, the AC Couple Support Mode feature causes the AC output frequency to shift when the battery voltage reaches a high level. This frequency shift is enough to cause the Utility-Interactive inverter to disconnect and stop charging the battery bank. However, this feature does not guarantee protection against overcharging the batteries. Therefore, some form of Battery Management must be provided to protect the battery bank from being overcharged during utility power failures. Copyright © 2010 Magnum Energy, Inc. All Rights Reserved. This document may be copied and furnished to others, provided that it is published and distributed in whole and includes the copyright notice and all references to Magnum Energy. MMP Panel (Inverter Disconnects), with remote to set “custom” battery setting. Document Name: Diversion Load Notes: Multi-Function DC Charge Controller Diversion Controller OFF OFF OFF ON ON ON ON ON ON OFF ON OFF ON ON OFF Bi-Directional Utility Meter OFF Utility Power Disconnect OFF Utility/Grid Power OFF OFF OFF ON Battery Bank MAGNUM AC COUPLED LINE DIAGRAM – WITH MICROINVERTERS Battery Management Date 14-OCT-2013 Page 1 of 1