Download Main Utility Panel Utility/Grid Power Utility Power Disconnect Bi

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