Magnum Energy ME-RC Owner's Manual
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ME-RC

Remote Control

Inverting
DC: 12.6V
Owner's Manual
50A
(for Revision 2.5 or higher)

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Table of Contents
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Do you have a question about the ME-RC and is the answer not in the manual?

Questions and answers

David Barton
April 20, 2025

Functioning well except auto start. Agm can be enabled but status shows non comm. And does not auto start

Summary of Contents for Magnum Energy ME-RC

  • Page 1: Remote Control

    ME-RC Remote Control Inverting DC: 12.6V Owner’s Manual (for Revision 2.5 or higher)
  • Page 2 Restrictions on Use The ME-RC remote shall not be used in connection with life support systems, life saving or other medical equipment or devices. Using the ME-RC with this particular equipment is at your own risk.
  • Page 3: Table Of Contents

    3.2.2 AGS Menu ................7 3.2.3 METER Menu ................. 7 3.2.4 SETUP Menu ................. 8 3.2.5 TECH Menu ................. 16 4.0 Menu Map: ME-RC Remote Control ..........18 5.0 Operation .................. 20 5.1 Front Panel ................20 5.1.1 LED Indicators ..............20 5.1.2 LCD Display ................
  • Page 4 Figure 3-6 thru 3-13, SETUP Menu Selections ........8-15 Figure 3-14 thru 3-18, TECH Menu Displays/Selection ..... 16-17 Figure 4-1, Inverter/Charger Menu Map ..........18 Figure 5-1, ME-RC Front Panel Controls and Indicators ......20 Figure 5-2, Off Mode ................ 23 Figure 5-3, Searching Mode .............. 23 Figure 5-4, Inverting Mode ...............
  • Page 5: Overview

    This manual is for the ME-RC with revision 2.5 or higher; see the TECH: 02 Revisions display on page 16 for information on how to determine your revision level.
  • Page 6: Installation

    2.0 Installation Before installing the remote, read the entire installation section to determine how you are going to install your ME-RC. The more thorough you plan in the beginning, the better your inverter needs will be met. Info: Installations should be performed by qualified personnel, such as a licensed or certified electrician.
  • Page 7: Figure 2-1, Remote Cut-Out Dimensions

    2.0 Installation " C U T O U T T H IS A R E A (d ia g ra m n o t to sca le ) " Figure 2-1, Remote Cut-Out Dimensions Info: All power to operate the remote control is provided by the inverter/charger through the remote cable.
  • Page 8: Setup

    3. Navigating the Remote’s Menu The ME-RC has an internal structure that provides menu items and adjustable settings that provide the ability to configure your inverter/charger to your specific parameters.
  • Page 9: Figure 3-2, Setup Menu Navigation

    3.0 Setup . Press the SETUP Menu button . Bottom line shows a menu item. Inverting 01 Search Watts 2. Turn the SELECT knob to the desired menu item. When the bottom line shows the desired menu item - Inverting 04 Battery Type 3.
  • Page 10: Menu Pushbuttons And Menu Items

    3.0 Setup 3.2 Menu Pushbuttons and Menu Items The five menu pushbuttons (SHORE, AGS, METER, SETUP or TECH) allow the inverter/charger system to be configured to your specific preferences. These menus also allow you to access menu items that can help with moni- toring and troubleshooting your system.
  • Page 11: Ags Menu

    3.0 Setup 3.2.2 AGS Menu The AGS menu pushbutton allows the optional Auto Generator Start (AGS) controller (if installed and networked) to be configured to your specific system preferences and check status of the AGS. Info: Refer to the ME-AGS-N Owner’s Manual (part number: 64- 0005) for detailed information on the Magnum Energy Auto Generator Start (ME-AGS-N) and this menu.
  • Page 12: Setup Menu

    3.0 Setup 3.2. SETUP Menu Pressing the SETUP menu pushbutton provides access to the menu items and settings that allow the inverter/charger to be configured. Read each menu item to determine if any setting requires adjustment to meet your requirements. •...
  • Page 13 3.0 Setup • SETUP: 02 LowBattCutOut - The Low Battery Cut-Out (LBCO) setting is used to set the DC voltage level that turns off the inverter to help protect the batteries from over-discharge damage. Selections are from 9.0 VDC to 12.2 VDC (12-volt inverter models), 18.0 VDC to 24.4 VDC (24-volt inverter models), or 36.0 to 48.8 (48-volt inverter models).
  • Page 14: Table 3-1, Battery Amphrs To Absorb Charging Time

    3.0 Setup • SETUP: 03 Batt AmpHrs - Used to select the approximate capacity of the battery bank connected to the inverter. This setting determines the time the battery charger is in the Absorb Charging stage (i.e. Absorption Time). See Table 3-1 to correlate the battery capacity to the Absorption Time;...
  • Page 15: Table 3-2, Battery Size To Battery Amp-Hours (Estimated)

    3.0 Setup Table 3-2 below provides an estimated 20-hour Amp-Hour capacity based on the group/code size, physical size and voltage of the battery. If you are not sure of your battery’s 20-hour AH rating, consult your battery manufacturer/ dealer or use the table below to obtain an estimate. Table 3-2, Battery Size to Battery Amp-Hours (estimated) Group / Physical Size...
  • Page 16: Table 3-3, Battery Type To Charge Voltages

    3.0 Setup • SETUP: 0 Battery Type - Used to select the battery type, which determines the battery charge profile and ensures the batteries are receiving the proper charge voltage. The fixed voltage selections are GEL (for Gel batteries), Flooded (for liquid lead acid batteries), AGM 1 (for Lifeline AGM batteries) and AGM 2 (for East Penn/Deka/Discover/Trojan AGM batteries);...
  • Page 17 3.0 Setup • SETUP: 05 Charge Rate - Used to set the maximum charge rate allowed to charge the batteries during bulk, absorption, float and equalize charging. Selections are ‘Max Charge = 0%’ up to ‘Max Charge = 100%. The Max Charge = 0% setting is available to help minimize charging while continuing to allow pass-thru power.
  • Page 18 3.0 Setup • SETUP: 0 VAC Dropout - Used to select the minimum AC voltage that must be present on the input before the inverter/charger switches from inverter to charger mode. For example: If this setting is set to Dropout = 60 VAC, then the AC input voltage must be above 60 Volts before the inverter will switch from inverter mode to charge mode.
  • Page 19 3.0 Setup • SETUP: 0 Power Saver - This setting allows you to turn off the Power Saver™ feature or select the time (from 1 minute to 60 minutes) that determines how often the display goes into Power Saver mode. Default setting: PwrSave = 15min SETU P rotate to...
  • Page 20: Tech Menu

    3.0 Setup 3.2.5 TECH Menu The TECH menu pushbutton provides access to selections that are used to assist service technicians in troubleshooting. It provides access to system in- formation along with a selection that allows all system settings to be returned to the original factory default values.
  • Page 21: Table 3-4, Inverter/Charger Default Settings

    3.0 Setup • TECH: 0 Load Defaults - This menu restores all settings on the inverter/charger and any settings on accessories that are networked and controlled by the inverter (i.e. ME-AGS-N) to the factory default settings. To restore, press and hold the Rotary SELECT knob for 5 seconds. After the default settings have been restored, the display will show DEFAULTS LOADED.
  • Page 22: Menu Map: Me-Rc Remote Control

    .0 Menu Map .0 Menu Map: ME-RC Remote Control The following figure is a complete overview of the inverter/charger settings and info displays available in the ME-RC; this should help with menu navigation. SH OR E Status... Status... Status... Status...
  • Page 23: Menu Map

    .0 Menu Map continued… . SETU P Status... 06 VAC Dropout Status ... Status ... Status....Dropout=UPSmode Dropout = 60VAC Dropout = 80VAC Status... 07 Power Save Status... Status... Status... Status... PwrSave = PwrSave = 1min PwrSave = 15min PwrSave = 60 min Status...
  • Page 24: Operation

    LED indicators and LCD display. 5. Front Panel The ME-RC front panel contains LEDs and a LCD display for viewing system status; pushbuttons to control system operation; and a Rotary Knob that allows an easy way to select and find system information.
  • Page 25: On/Off Pushbuttons

    “save” a setting once they are displayed on the LCD screen. Info: All adjustable inverter/charger settings in the ME-RC (except for the SHORE: Shore Max and SETUP: 08 Screen Setup settings -...
  • Page 26: Operating The Inverter/Charger

    5.0 Operation 5.2 Operating the Inverter/Charger 5.2. Inverter Mode Turning the inverter on: Press the ON/OFF INVERTER pushbutton to activate the inverter function. The inverter will either be actively “inverting” by using power from the batteries to power the AC loads (see figure 5-4); or will be “searching”...
  • Page 27: System Status Messages

    5.0 Operation 5.3 System Status Messages The remote control uses the top line of the LCD display to show the inverter/ chargers current operation by displaying a status message. This section will show the inverter/ charger’s operating modes and the available status messages under each mode.
  • Page 28: Charger Mode Messages

    5.0 Operation 5.3.2 Charger Mode Messages When AC power (utility or generator) is connected to the inverter/charger, it begins to monitor the AC input for acceptable voltage. Once the AC input is accepted, the AC transfer relay (inside the inverter) closes and charger mode begins.
  • Page 29: Figure 5-8, Float Charging Mode

    5.0 Operation Float Charging appears on LCD; PWR Float Charging (green) LED is on solid and CHG (green) FAULT LED is typically on solid, but may blink Settings/Info... slowly; FAULT (red) LED is off and INV (green) LED could be on or off. Figure 5-8, Float Charging Mode •...
  • Page 30: Figure 5-11, Equalizing Mode

    5.0 Operation Equalizing appears on LCD; PWR Equalizing (green) and CHG (green) LED’s are FAULT on solid; FAULT (red) LED is off and Settings/Info... INV (green) LED could be on or off. Figure 5-11, Equalizing Mode Equalizing - The battery charger is delivering the equalize voltage to the bat- teries;...
  • Page 31: Fault Mode Messages

    5.0 Operation 5.3.3 Fault Mode Messages The fault LED comes on and a fault status is displayed when an abnormal condition is detected. View the LCD display and the information in this section to determine and correct the issue. Info: Many of the faults will automatically restart when the fault is cleared.
  • Page 32: Figure 5-14, Overtemp Fault

    5.0 Operation Overtemp appears on the LCD Overtemp and the FAULT (red) LED is on. The FAULT PWR (green), CHG (green) and INV Settings/Info... (green) LED’s are off. Figure 5-14, Overtemp Fault • Overtemp – This fault message indicates the inverter/charger has shut down because the internal power components (FET’s and/or Transformer) have exceeded their safe temperature operating range.
  • Page 33: Figure 5-17, Dead Battery Charge Fault

    5.0 Operation Dead Battery Charge appears on the Dead Batt Charge LCD and the FAULT (red) LED is on. The FAULT PWR (green), CHG (green) and INV Settings/Info... (green) LED’s are off. Figure 5-17, Dead Battery Charge Fault • Dead Battery Charge – This fault has detected a very discharged battery bank or a battery bank that is disconnected from the inverter.
  • Page 34: Figure 5-19, Fet Overload Fault

    5.0 Operation FET Overload appears on the LCD FET Overload and the FAULT (red) LED is on. The FAULT PWR (green), CHG (green) and INV Settings/Info... (green) LED’s are off. Figure 5-19, FET Overload Fault • FET Overload - This fault message indicates the inverter/charger has shut down because the internal FET’s (Field Effect Transistor’s) have quickly exceeded a safe operating temperature.
  • Page 35: Figure 5-22, Tfmr Overtemp Fault

    5.0 Operation Tfmr Overtemp appears on the LCD Tfmr Overtemp and the FAULT (red) LED is on. The FAULT PWR (green), CHG (green) and INV Settings/Info... (green) LED’s are off. Figure 5-22, Tfmr Overtemp Fault • Tfmr Overtemp - This fault message is displayed when the TCO (Temperature Cut-Out) opens and causes the inverter to shutdown to protect the internal power transformer from damage.
  • Page 36: Figure 5-25, Stackclock Fault

    5.0 Operation 5.3.3.3 Stacking Fault Messages – A fault condition may occur when two inverters are stacked in series - using the stacking interface to provide 120/240VAC output - that is not possible on a single inverter installation. Refer to the following fault messages to help troubleshoot the inverters. StackClock Fault appears on the StackClock Fault LCD and the FAULT (red) LED is on.
  • Page 37: Figure 5-28, Internal Bridge Fault

    5.0 Operation 5.3.3. Internal Fault Messages - The inverter continually monitors several internal components. If an condition inside the inverter occurs that does not allow proper operation, the inverter will shutdown to help protect itself. To clear these “internal” type of faults, the inverter will require an inverter reset. Remedy: Perform an inverter reset;...
  • Page 38: Led Indicator Guide

    5.0 Operation 5.3. LED Indicator Guide The remote provides the following LED’s; use them along with the LCD display to determine the operating status. Table 5-, LED Indicator Guide Status Meaning 1. Inverter is disabled; 2. Remote’s in Power Saver mode - press any button to activate LED’s;...
  • Page 39: Troubleshooting

    .0 Troubleshooting .0 Troubleshooting The remote may not be functioning correctly, use the following table to help find a solution. Table -, Remote Control Troubleshooting Guide Symptom Possible Cause Solution Display shows Static electricity Refresh Display: press and unrecognizable may have been hold the SELECT button for 10 letters or discharged into the...
  • Page 40: Troubleshooting Tips

    Charger not charging even though charge LED is on steady and the unit says “Bulk Charging” (or “Absorb Charging”): Check the DC amps meter, and DC voltmeter on the ME-RC display, it should be 80% or more of rated charge current if the battery voltage is under 14.0 VDC (28.0 VDC on 24-volt models or 48.0 VDC for 48-volt models).
  • Page 41: Performing An Inverter Reset

    Info: The Power ON/OFF pushbutton is a small momentary type switch which operates by lightly pressing and releasing. Info: All adjustable inverter/charger settings in the ME-RC (except for the SHORE: Shore Max and SETUP: 08 Screen Setup settings - which revert back to default) are saved in non-volatile memory and are preserved until changed - even if an inverter reset is performed or if all power to the remote or inverter is removed.
  • Page 42: Limited Warranty

    .0 Service and Warranty Info .0 Limited Warranty Magnum Energy, Inc., warrants the ME-RC remote control to be free from defects in material and workmanship that result in product failure during normal usage, according to the following terms and conditions: 1.
  • Page 44 Magnum Energy, Inc. 2211 West Casino Rd Everett, WA 98204 Phone: 425-353-8833 Fax: 425-353-8390 Web: www.magnumenergy.com PN: 64-0003 Rev D (11/09)

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