Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for MidNite Solar Little Rosie MNLR3648M
Summary of Contents for MidNite Solar Little Rosie MNLR3648M
- Page 1 MNLR3648M (Mobile Version) Little Rosie Inverter/Charger © Owner’s Manual...
-
Page 2: Disclaimer Of Liability
The use of this manual and the conditions or methods of installation, operation, use, and maintenance of the Little Rosie inverter/charger fall beyond the control of MidNite Solar. Consequently, the company assumes no responsibility and expressly disclaims any liability for loss, damage, or expense—whether direct, indirect, consequential, or... -
Page 3: Important Product Safety Instructions
Ensure wire connections are secure to prevent hazards. • AC and DC Disconnects: This inverter does not include integral AC or DC disconnects. As part of the system installation, ensure that both AC and DC disconnects are provided. © 2024 MidNite Solar... -
Page 4: Safety Information
When installing this inverter/charger, the battery is to be verifi ed as in compliance with the applicable battery standard. SAVE ALL INSTRUCTIONS © 2024 MidNite Solar... - Page 5 Assurez-vous que les connexions sont sécurisées pour éviter les risques. • Déconnexions AC et DC: Cet onduleur ne comprend pas de déconnexions AC ou DC intégrées. Dans le cadre de l’installation du système, assurez-vous que les deux types de déconnexions sont fournis. © 2024 MidNite Solar...
- Page 6 électrique et thermique de la batterie pendant la charge. Lors de l’installation de cet onduleur/chargeur, la batterie doit être vérifi ée comme étant conforme à la norme de batterie applicable. CONSERVEZ TOUTES LES INSTRUCTIONS © 2024 MidNite Solar...
-
Page 7: Table Of Contents
4.2.1 Inverter Mode ............40 4.2.2 Standby (Transfer/Charger) Mode ......41 Current Flow ............43 Over-Charge Protection ..........45 Protection Circuitry Operation ........45 Battery Temperature Sensor Operation ......47 Inverter Fan Operation ..........47 Neutral to Safety Ground Bonding ......48 Troubleshooting .............49 © 2024 MidNite Solar... - Page 8 Figure B-1, Battery Bank Wiring Examples .......55 List of Tables Table 2-1, Recommended DC Wire/Overcurrent Device ....13 Table 3-1, Auxiliary Modes Summarized ........34 Table 4-1, Inverter Battery Turn On/Off Levels ......46 Table 5-1, Troubleshooting Guide ..........49 Table 6-1, MNLR3648M Specifi cations ........51 © 2024 MidNite Solar...
-
Page 9: Introduction
Rosie has been tested and certifi ed to these product safety standards by a Nationally Recognized Testing Laboratory (NRTL). NRTL’s are qualifi ed organizations that meet Occupational Safety and Health Administration (OSHA) regulations to perform independent safety testing and product certifi cation. © 2024 MidNite Solar... -
Page 10: How The Little Rosie Works
Your Little Rosie inverter has a built-in safeguard that will cause it to automatically turn off when the batteries get low - to protect your batteries from being over-discharged. © 2024 MidNite Solar... -
Page 11: Little Rosie Features
CAN capable accessories; or for connecting a MidNite Remote control. See Section 2.6.2. DC Equipment Ground Terminal – this connection is used to tie the exposed chassis of the inverter to the vehicle’s DC grounding system. See Section 2.3.3. © 2024 MidNite Solar... -
Page 12: Figure 1-2, Front Side (Right-Hand) Features
Mounting Flange – used to secure the inverter to a shelf or wall. See Figure 2-2. Intake Air Opening – opening that allows the internal cooling fan to pull in air to help keep the inverter cool for peak performance. Figure 1-3, Rear Side Features © 2024 MidNite Solar... -
Page 13: Figure 1-4, Left Side Features
See Section 3.3. AC Terminal Block - for connecting the AC input/ output wires. See Section 2.4.2. Auxillary terminals - to connect externally controlled equipment and options. See Section 2.5. Figure 1-4, Left Side Features © 2024 MidNite Solar... -
Page 14: Installation
Save your proof-of-purchase as a record of ownership. This documentation will be necessary if the unit requires in-warranty service. Record the model (MNLR3648M) and serial number of the unit in the front of the manual for future reference. © 2024 MidNite Solar... -
Page 15: Figure 2-1, Little Rosie Basic Rv Installation Diagram
Installation Figure 2-1, Little Rosie Basic RV Installation Diagram © 2024 MidNite Solar... -
Page 16: Locating And Mounting The Inverter
fl ow in and heated air to exit away from the inverter and enclosure. CAUTION: Do not mount this inverter in a zero clearance compartment, nor cover or obstruct the ventilation openings—overheating may result. © 2024 MidNite Solar... - Page 17 • Consider placing fl exible washers or bushings between the mounting surface and the inverter’s fl anges to reduce vibration. Once the inverter has been properly mounted, you can begin to wire the DC connections. © 2024 MidNite Solar...
-
Page 18: Figure 2-2, Approved Mounting Orientations (Mnlr3648M)
DC Side (on right) DC Side (facing up) DC Side (facing down) Wall-mounted, with DO NOT mount with the DC terminals the DC terminals facing up. facing down. Figure 2-2, Approved Mounting Orientations (MNLR3648M) © 2024 MidNite Solar... -
Page 19: Figure 2-3, Little Rosie Inverter Dimensions
Installation 9" (22.9 cm) 8 ¼" (21 cm) Bottom Side View View " 15/16 8 ¼" (21 cm) (15.1 cm) Figure 2-3, Little Rosie Inverter Dimensions © 2024 MidNite Solar... -
Page 20: Dc Wiring
Color Code DC Cables/Wires - To help avoid polarity problems, color code the DC cables/wires to the battery bank: RED for positive (+), WHITE (or BLACK) for negative (–), GREEN (or bare copper) for DC ground. © 2024 MidNite Solar... -
Page 21: Dc Wire Sizing
: This fuse is matched with the ‘Minimum DC Wire Size’ to ensure the current rating of the fuse does not exceed the ampacity of the wire. If a larger fuse is used, ensure the ampacity of the DC wire is sized correctly. © 2024 MidNite Solar... -
Page 22: Dc Overcurrent Protection
The Little Rosie provides a DC equipment ground terminal for this purpose; see Figure 1-1, Item 7. This connector accepts copper or aluminum conductors from 4 - 14 AWG. © 2024 MidNite Solar... -
Page 23: Dc Cable Connections
Battery Cables (with ring lugs) DC Terminal Covers (snaps on) Inverter’s DC Terminals Flat Washers 8 x 1.25mm KEP/Flange nuts Figure 2-4, DC Cable to Inverter’s DC Terminals © 2024 MidNite Solar... -
Page 24: Battery Bank Wiring
As a precaution, color code the cables with colored tape or heat shrink tubing—RED for positive (+) and BLACK (or WHITE) for negative (–) to avoid polarity confusion. © 2024 MidNite Solar... - Page 25 6. Attach the red and black terminal covers over the inverter’s DC connectors, and then secure them in place. 7. If the batteries are in an enclosure, perform a fi nal check of the connections to the battery terminals, then close and secure the battery enclosure. © 2024 MidNite Solar...
-
Page 26: Ac Wiring
Info: The inverter’s AC NEUTRAL IN and AC NEUTRAL OUT terminals are electrically isolated from each other while inverting. This is related to the neutral-ground bonding requirement and helps to prevent ground-loops (see Section 4.8 for more information). © 2024 MidNite Solar... -
Page 27: Figure 2-5, Ac Terminal Block Lever (Up And Down)
(Clamp Wire) (Insert Wire) Figure 2-5, AC Terminal Block Lever (UP and DOWN) TERMINAL BLOCK AC GROUND AC GROUND AC HOT IN AC NEUTRAL IN AC NEUTRAL OUT AC HOT OUT Figure 2-6, AC Terminal Block © 2024 MidNite Solar... -
Page 28: Ac Wire Size And Overcurrent Protection
AC panel, and the other terminal to connect the equipment powered by the inverter (i.e., sub-panel). Info: There is a safety requirement to only have one neutral-to-ground connection in the electrical system. See Section 4.8 for more information. © 2024 MidNite Solar... -
Page 29: Ac Conductor Wiring
12. After verifying all AC connections are correct and all inverter AC terminal levers are fully clamped down. Replace the AC wiring access cover and the covers on the main electrical/distribution panel. © 2024 MidNite Solar... -
Page 30: Auxillary (Aux) Terminal Block
The AUX terminal block provides diff erent functions depending on which pole(s) are used. See Figure 2-8 below and the related information to help determine how to connect and enable each function. Figure 2-8, Auxillary Terminal Block Functions © 2024 MidNite Solar... - Page 31 Absorb charge cycle. CAN Terminals - The CAN_L, CAN_H and CAN_GND terminals can be used to communicate with CANBUS compliant devices. Not Used - This terminal is not used, nor connected to any circuit or feature. © 2024 MidNite Solar...
-
Page 32: Communications Ports
Little Rosie. For information on the MNGP2 setup features, see Section 3.0. Info: The conductors in the RJ45 CAN port are in parallel with the CAN terminals on the Auxillary Terminals Block as described in Section 2.5. © 2024 MidNite Solar... -
Page 33: Functional Test
10. Disconnect the incoming AC power to the inverter. Verify the connected load remains on—but now is powered by the inverter. If the inverter passes all the steps, the inverter is ready for use. If the inverter fails any steps, refer to Section 5.0, Troubleshooting. © 2024 MidNite Solar... -
Page 34: Setup
AUX 2 Manual Off Temp Comp Ref 25.0 C Dead Battery Start Mode Manual Off LBCO Connect 48.0 V Battery Voltage Offset Battery Configuration LBCO Disconnect 45.0 V LBCO Disconnect 0:01 Figure 3-1, Little Rosie’s Default Settings © 2024 MidNite Solar... -
Page 35: Setup Menu/Battery Confi Guration
Batt Chemistry type; or manually program a specifi c %. Most Flooded start at 80%; Sealed/Gel at 95%; Lithium at 94%. Default = 98%. • Chemistry - Loads up typical, default charging voltages for the selected chemistry. Default = Lithium. © 2024 MidNite Solar... -
Page 36: Setup Menu/Inverter Confi Guration
AUX Functions – Select desired AUX modes for AUX 1 and/or AUX 2. Default = Manual Off (AUX 1 and AUX 2). Note: See Section 3.2 for AUX settings that can be set using the MNGP2 remote. © 2024 MidNite Solar... -
Page 37: Auxiliary Modes
‘LOW’ input = 0 to 2.5 VDC. ‘HIGH’ input = >2.5 to 14.5 VDC. • Most of the AUX modes have an inverse output mode, which reverses the ON and OFF output state when the aux mode condition becomes active. © 2024 MidNite Solar... -
Page 38: Auxiliary Modes - Descriptions
Quiet Start – A day/night time setting that begins the quiet time period, which ensures the generator is prevented from starting. Quiet Stop – A day/night time setting that ends the quiet time period to allow normal generator operations. © 2024 MidNite Solar... - Page 39 Vent Fan OFF: When battery voltage is greater than or equal to the On Voltage (On V) threshold for 90 seconds. ◊ Vent Fan ON: When battery voltage falls 1V below the On Voltage (On V) threshold for 90 seconds. © 2024 MidNite Solar...
-
Page 40: Figure 3-2, Aux - Waste Not Operation (Normal Output)
Hold Time and below the Off Off set (Off O) threshold. Waste Not Absorption On Offset Hysteresis Waste Not Off Offset Waste Not Float On Offset Hysteresis Off Offset Waste Not Time Figure 3-2, Aux - Waste Not Operation (Normal Output) © 2024 MidNite Solar... - Page 41 ON: Charger functionality is enabled when the input voltage on the aux terminal is low (0 to 2.5 VDC). ◊ OFF: Charger functionality is disabled when the input voltage on the aux terminal is high (>2.5 to 12 VDC). © 2024 MidNite Solar...
-
Page 42: Table 3-1, Auxiliary Modes Summarized
Inverted Temp for Delay Time. for Hold Time. Toggle Normal Continually toggles Aux ON for 3 Test only seconds, then OFF for 3 seconds. Charger Input LOW = Charger HIGH = Charger Enabled Only enabled disabled © 2024 MidNite Solar... -
Page 43: Dip Switch Settings
When set OFF, a maintain (only ON or OFF) switch is required. Refer to Section 2.5.1 Info: When the FP MAINTAIN switch is set to OFF, the front panel switch no longer works normally–or as expected. © 2024 MidNite Solar... -
Page 44: Operation
AC input is disconnected, verify the INV LED is on and blinks on every four seconds (see Inverter Standby). Info: The ON/OFF switch does not turn the battery charger function on or off . © 2024 MidNite Solar... -
Page 45: Led Indicators
INV blink-on x1 (Inverter Standby): The Little Rosie is connected to an external AC source (utility or generator power) and is not actively inverting, but the inverter function is enabled and ready to start inverting—if the external AC source is disconnected. © 2024 MidNite Solar... - Page 46 Equalize) and any voltage increase or decrease based on the temperature around the BTS - if the BTS is enabled (by battery type) and installed. If the BTS is not installed, the Target Voltage is the same as the charge stage voltage setting. © 2024 MidNite Solar...
- Page 47 15 seconds, and then reconnect. After resetting the inverter, momentarily press the inverter’s ON/OFF switch and verify that the error has cleared. If the internal error remains, seek service at an authorized repair facility. © 2024 MidNite Solar...
-
Page 48: Operating Modes
INV LED will come on and stay on to indicate it is inverting. The amount of time the inverter can be inverting and providing AC power is directly related to the amount of AC loads that are connected, and the capacity of the battery bank. © 2024 MidNite Solar... -
Page 49: Standby (Transfer/Charger) Mode
Absorb Charging Float Charging Charging Float volts Absorb Volts DC Voltage Increased Charging Maintenance Voltage Voltage Voltage Time DC Current Max Charge Absorb Time Constant Reduced Maintenance Current Current Current Figure 4-2, Automatic 3-Stage Charging Graph © 2024 MidNite Solar... - Page 50 BTS is <77°F (25°C), and decrease if the temperature around the BTS is >77°F (25°C). Note: If some of your operating parameters need to be changed, the MNGP2 remote control can be used to allow changes to those settings. © 2024 MidNite Solar...
-
Page 51: Current Flow
FROM GRID FROM BATT Input Amps = Battery Amps = 0 Amps AC -10 Amps AC INVERTER AC LOADS Load Amps = 10 Amps AC 10AAC Ammeter TO LOADS Figure 4-3, Current Flow - Inverter Mode © 2024 MidNite Solar... -
Page 52: Figure 4-4, Current Flow - Standby Mode
FROM GRID FROM BATT Input Amps = Battery Amps = 20 Amps AC -10 Amps AC INVERTER AC LOADS Load Amps = 30 Amps AC 30AAC Ammeter TO LOADS Figure 4-4, Current Flow - Standby Mode © 2024 MidNite Solar... -
Page 53: Over-Charge Protection
Low Battery Cut In (LBCI) level. The INV LED turns off when a low battery error condition occurs. Refer to Table 4-1 to determine the LBCO and LBCI levels. © 2024 MidNite Solar... -
Page 54: Table 4-1, Inverter Battery Turn On/Off Levels
The inverter will need to be reset to resume operating. Table 4-1, Inverter Battery Turn On/Off Levels Inverter Model Inverter Battery Turn On/Off Levels Little Rosie HBCO ≥66.0 VDC (after 3 seconds) HBCI ≤65.0 VDC LBCI 48.0 VDC LBCO 45.0 VDC (one minute delay) © 2024 MidNite Solar... -
Page 55: Battery Temperature Sensor Operation
Info: Whenever the inverter is fi rst connected to the battery, the fan comes on for one second during the power- up test. Info: The inverter’s fans do not come on based on temperature sensed by the optional Battery Temperature Sensor. © 2024 MidNite Solar... -
Page 56: Neutral To Safety Ground Bonding
These ground-loops can trip ground fault circuit interrupters (GFCIs), create electric shock hazards, and lead to other undesirable eff ects. Inverter Mode Standby Mode NEU-GND Relay NEU-GND Relay Inside Little Rosie Inside Little Rosie Figure 4-5, Neutral-to-Ground Connection © 2024 MidNite Solar... -
Page 57: Troubleshooting
Ensure there is not a times every are larger than the short in the wiring on 4 secs) inverter’s output the inverter output by capacity—or the removing all AC output output wires are wiring and restart the shorted. inverter. © 2024 MidNite Solar... - Page 58 Section 4.6 (Battery DC charge is installed, it will Temperature Sensor voltage is increase or decrease Operation) for more higher or the DC voltage level information. lower than depending on the expected temperature around the battery sensor. © 2024 MidNite Solar...
-
Page 59: Specifi Cations
20.25”x 9”x 6” (51.4 cm x 22.9 cm x 15.1 cm) Shipping Dimensions (LxWxH) 22”x10”x 8.5” (55.9 cm x 25.4 cm x 21.6 cm) Unit Weight 15 lbs. (6.8 kg) Shipping weight 16 lbs. (8.6 kg) Specifi cations subject to change without notice © 2024 MidNite Solar... -
Page 60: Temperature And Inverter Power Output
Figure 6-1, Inverter Power Output vs Temperature Temperature and Charger Current Output The following curve shows the Little Rosie’s continuous charger current as the ambient temperature rises. Ambient (°C) Figure 6-2, Charger Current Output vs Temperature © 2024 MidNite Solar... -
Page 61: Appendix A - Optional Equipment & Accessories
To use the Whizbang Jr with the Little Rosie, you will need the MNGP2 remote control. MNSHUNT (DC Shunt) The 500A/50mV shunt from MidNite Solar serves as a current measurement device. It is commonly used in conjunction with the Whiz Bang Jr to determine the current fl ow into the battery bank from the Little Rosie during charging. -
Page 62: Appendix B - Battery Information
(to increase run time for operating loads), using smaller, lower- voltage batteries. In the example (bottom section of Figure B-1), four 12 VDC/100 AH batteries are combined into two strings, resulting in a 48 VDC/200 AH battery bank. © 2024 MidNite Solar... -
Page 63: Figure B-1, Battery Bank Wiring Examples
+ 12 VDC + 12 VDC) (100 AH) (100 AH) (100 AH) (100 AH) 48-volt battery bank [two strings of four 12-volt batteries wired in series (to increase voltage) and in parallel (to increase capacity)] Figure B-1, Battery Bank Wiring Examples © 2024 MidNite Solar... -
Page 64: Appendix C - Warranty/Service Information
MidNite’s systems. Those components are warranted by the original manufacturer. At its option, MidNite Solar will repair or replace at no charge any MidNite product that proves to be defective within such warranty period. This warranty shall not apply if the MidNite Solar product has been damaged by unreasonable use, accident, negligence, service, or modifi... -
Page 65: How To Receive Repair Service
3. Place RMA numbers clearly on the shipping container or on the packing slip. When sending your product for service, please ensure it is properly packaged. Damage due to inadequate packaging is not covered under warranty. We recommend sending the product by traceable and insured service. © 2024 MidNite Solar... - Page 66 MNLR3648M Owner’s Manual MidNite Solar Web: www.MidNiteSolar.com MNLR3648M Owner’s Manual (10-586-1, Rev A)
Need help?
Do you have a question about the Little Rosie MNLR3648M and is the answer not in the manual?
Questions and answers