MidNite Solar Barcelona Owner's Manual
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MidNite Solar Barcelona Owner's Manual

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Barcelona Manual
MidNite Solar Barcelona
Owner's Manual
This entire manual is printed without color but is available for download—with many of the
diagrams available in color—on our website at midnitesolar.com.
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1 0 - 4 1 8 - 1
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Summary of Contents for MidNite Solar Barcelona

  • Page 1 Barcelona Manual MidNite Solar Barcelona Owner’s Manual This entire manual is printed without color but is available for download—with many of the diagrams available in color—on our website at midnitesolar.com. 1| P a g e 1 0 - 4 1 8 - 1...

  • Page 2: Table Of Contents

    Battery Temperature Sensor ..................... 16 Whiz Bang Jr ..........................17 Battery Sense Circuit ......................... 18 Barcelona Wiring ......................... 18 Energizing the Barcelona ..................... 19 Operation ..........................20 System and Device Naming ....................... 20 Battery Charge Stages ....................... 22 Advanced Settings and Concepts ..................23 Barcelona Programming ......................

  • Page 3: Introduction

    Barcelona Manual INTRODUCTION The Barcelona charge controller regulates a DC input source from solar to properly charge a 48VDC battery bank. The Barcelona can be installed stand-alone or as a multi-unit, networked installation with any CANBUS MidNite product using our latest graphical interface, the MNGP2.

  • Page 4: Safety Instructions

    Barcelona Manual IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS THIS MANUAL CONTAINS IMPORTANT INSTRUCTIONS FOR THE MIDNITE SOLAR BARCELONA MPPT CHARGE CONTROLLER THAT SHALL BE FOLLOWED DURING INSTALLATION AND OPERATION. If you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, please refer installation to a qualified dealer, electrician, or installer.
  • Page 5 • Read and follow the battery manufacturer’s safety precautions before installing the inverter and batteries. Always verify proper polarity and voltage before connecting the batteries to the Barcelona. Once the batteries are connected, ensure the maintenance and charging requirements (i.e., charge voltage and charge rate) provided by the battery manufacturer are followed to extend the life of the batteries and to prevent damage to the batteries while charging.

  • Page 6: How To Kill Your Batteries

    • Never smoke or allow a spark near batteries. • Never charge a frozen battery. STANDARDS The MidNite Solar Barcelona charge controller conforms to UL 1741, Safety for Inverters, Converters, Controllers and Interconnection System Equipment for Use with Distributed Energy Resources, UL 1741:2010 Ed.2+R:15Feb2018; CSA C22.2#107.1:2016 Ed.4.

  • Page 7: Wiring Requirements

    (90 degrees) to one another. • DC wires to and from the Barcelona must be protected as required by code. This can be done by using jacketed wires or by feeding the wires through conduit or a conduit box. The optional Barcelona Breaker Box satisfies this requirement.
  • Page 8 • The DC cables must be fine strand, super flexible, such as Cobra cable (or equivalent) and be approved for residential wiring per the NEC (THW for example). • Do not use the Barcelona chassis in place of the battery negative connection for grounding. A reliable return path directly to the battery is required.
  • Page 9 • All wiring to the battery terminals should be checked periodically (once a month) for proper tightness. • Ensure cables have a smooth bend radius and do not become kinked. • Limit cable length to 6’ or less from Barcelona to battery bank. • The battery bank voltage MUST be 48V! WARNING! Verify correct polarity with a multimeter BEFORE connecting battery cables to Barcelona.

  • Page 10: Installation

    Protecting Wire – Barcelona Breaker Box (MNBCLNA BB) DC wires to and from the Barcelona must be protected as required by code. This can be done by using jacketed wires or by feeding the wires through conduit. Midnite offers a breaker box that includes the necessary DC breakers that allow the PV wires and DC battery cables to be routed via conduit and connected to the Barcelona.
  • Page 11 These gases are corrosive and will damage the Barcelona; also, if these gases are not ventilated and if allowed to collect, they could ignite and cause an explosion.

  • Page 12: Barcelona Connections

    (Figures 2, 3, & 4) Terminal Block #1 - Breaker Trip circuits, connect to PV input remote-trip breaker(s). The Barcelona will signal the breaker to trip open when the PV input voltage exceeds 600VDC. Use #22 AWG wire. CANBUS Receptacles #2 -Used to connect the Barcelona to other MidNite CANBUS circuits.

  • Page 13: Bypass Switch

    Figure 6 shows the Options Board, sub-boards, and connection receptacles. Bypass Switch & TB1 For Rapid Shutdown System operations, the Barcelona via the Options Board can be configured to accept an external switch to initiate Rapid Shutdown. Figure 5 On the lower right corner of the Options Board is a Bypass Switch (CON4). To allow an...

  • Page 14: Arc Fault

    AF system, other than ON or OFF. In the event the Barcelona detects an AF, the charge controller will shut down with audible and visual AF indications. The AF issue must be remedied before the controller can resume operations. Clear the AF, then power cycle the Barcelona off then back on.

  • Page 15: Rapid Shutdown System

    Barcelona Manual The Barcelona GF toroid works with either grounded or ungrounded PV systems. When a GF condition occurs, the Barcelona stops charging and announces a GF alert. Connecting the GF toroid to the Options Board: 1. GF toroid shown in Figure 11.

  • Page 16: Battery Temperature Sensor

    Program the temperature coefficient factor as provided by the battery manufacturer; -5mV is a common factor. If the BTS is disconnected or shorted, the Barcelona will default to a neutral temperature of 25C and will not temp-comp the charging voltages.

  • Page 17: Whiz Bang Jr

    Connecting the BTS: 1. Connect the phone jack of the BTS into the BTS receptacle on the Barcelona control board, as marked by #3 in Figure 2.

  • Page 18: Battery Sense Circuit

    2. Go to Setup / MPPT Config / External Sensors, then WBJr, and set to Battery. Battery Sense Circuit The Barcelona measures battery bank voltage via the Batt+ and Batt- cables connected to the battery bank, and it compares that measured voltage with the Battery Sense Circuit connection.

  • Page 19: Energizing The Barcelona

    Ensure all breakers are OFF ….. You will need a multimeter Step #1 – Battery Voltmeter – Measure for battery bank voltage between the Barcelona battery breaker (at bottom of breaker) and the Batt- terminal inside the Barcelona. o Battery bank voltage present? ▪...

  • Page 20: Operation

    ▪ No – Check PV combiner breakers, PV wiring, or connections. • Turn on (close) the PV breakers. • Voltmeter – Measure each MPPT input for PV (max power) voltage between Barcelona PV+ and PV- terminals. o PV voltage (Vmp) present? ▪...
  • Page 21 You name your device “Home Barc.” o You program “Home Barc” for your new Lithium batteries. o Then you buy a second Barcelona. You name the new device “Garage Barc.” o When Garage Barc is connected to CANBUS, it will automatically be programmed for the Lithium batteries, just like in Home Barc.

  • Page 22: Battery Charge Stages

    • Imp – Maximum Power Current: This is the current flow from the PV module at the Vmp point on the IV curve. When the Barcelona sweeps the IV curve and decides to lock on to a particular Vmp, then Imp is the current at this particular point of Vmp.

  • Page 23: Advanced Settings And Concepts

    Confirm with your battery manufacturer if your batteries need EQ or not. • Resting - Not an actual charge stage, Resting means the Barcelona is NOT charging the battery bank for some logic reason, such as not enough sunlight or solar intensity or another charging source is elevating the battery voltage and the Barcelona does not need to contribute any more charging current.

  • Page 24: Barcelona Programming

    • Output Amps - Limits the Barcelona’s output amps. Useful if your system produces more current than the battery manufacturer recommends or if you installed a circuit breaker between the Barcelona and the battery bank that is too small for the current load, and you want to stop nuisance tripping of the breaker.
  • Page 25 Amp setpoint at which the batts are fully charge. Commonly 1 – 3% of the bank’s (20-hr) Ah rating. The Barcelona will go to Float when the Absorb Timer counts down to 0 or when Ending Amps is reached, whichever occurs first. Using Ending Amps is a better way to charge the batt bank properly and fully.
  • Page 26 Turns ON or OFF T-comp during the EQ cycle. Be mindful of an elevated batt bank voltage in the winter when equalizing. This high batt voltage may exceed the DC IN voltage limit on some inverters. Max DC IN for the Barcelona is 65V. • Temp Comp mV/Deg C –...
  • Page 27 Select desired AUX modes for AUX 1 & AUX 2. See page 29 for AUX modes. • Fine Tuning o Batt Voltage Offset – Adjustment to correct Batt V sensed by Barcelona. o Debug Display o Reload EQ Counters •...

  • Page 28: Auxiliary Modes

    Barcelona Manual AUXILIARY MODES The Barcelona offers three Auxiliary terminals to be used as a nominal DC trigger voltage source to activate a relay that in turn connects DC accessories (battery vent fan, diversion loads, lights) to the battery bank or an AC relay to break an inverter’s AC output or some other AC source wire.
  • Page 29 Barcelona Manual MODE ON / OFF When ON (OFF)? When OFF (ON)? SOC % Low SOC % SOC % (Timer till OFF) (Timer till ON) SOC % High SOC % SOC % (Timer till ON) (Timer till OFF) GFP Trip High...

  • Page 30: Firmware Update

    4. FW app will appear as shown in Figure 21. 5. Tap the label that reads MNGP2. 6. The FW app will connect to the Barcelona, then the app will appear as shown in Figure 22. 7. Tap the box that reads MNGP2 Standard.

  • Page 31: Troubleshooting

    Resting means the Barcelona is not in Bulk, Absorb, Float, or Equalization charging modes. If the PV input is absent or the PV voltage is too low, the Barcelona will remain in Resting. Check that the Mode is ON. If the Mode is OFF, the MNGP2 will display “Mode is OFF” vice “RESTING,”...
  • Page 32 • If PV IN voltage drops to battery voltage or close to it, the problem is probably a bad PV connection. • If PV IN voltage remains the same or at a normal level, the Barcelona has probably lost its FET drive.
  • Page 33 • Check for reverse polarity of battery positive and negative connections to the Barcelona. • Battery voltage needs to be 29V or higher for the Barcelona to power up. If less than 29V, charge the battery bank using external source of power.

  • Page 34: Technical Drawings & Specifications

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  • Page 39: Warranty

    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 modification by anyone other than MidNite Solar, or by any other causes unrelated to materials and workmanship.
  • Page 40 Barcelona Manual DISCLAIMER Unless specifically agreed to in writing, MidNite Solar Inc.: (a) Makes no warranty as to the accuracy, sufficiency, or suitability of any technical or other information provided in its manuals or other documentation; (b) Assumes no responsibility or liability for loss or damage whether direct, indirect, consequential, or incidental, which might arise out of use of such information.

  • Page 41: Pv Voltage Correction Factors

    Barcelona Manual PV Voltage Correction Factors Ambient Temp / C Factor Ambient Temp / F 24 to 20 1.02 76 to 68 19 to 15 1.04 67 to 59 14 to 10 1.06 58 to 50 9 to 5 1.08...

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