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MidNite Solar MNCLIPPER Instructions Manual
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MidNite Solar MNCLIPPER Instructions Manual

Solar clipper
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MidNite Solar Clipper Instructions
The MNCLIPPER works with the MidNite Solar Classic MPPT Charge Controller to provide
the highest level of performance and protection possible.
Features:
 Helps protect turbine from overspeed.
 Braking feature included.
 Convenient switching between run / turbine Stop.
 Settable voltage threshold for clipping.
 50 Amp pass-through.
 D.C. or Three Phase AC models with heavy duty three phase bridge rectifier.
 AC model Converts three phase AC input to D.C. for the Classic.
 Durable powdercoated chassis.
 MNSPD Surge protective devices (optional) can be added for protection against surges.
 Available in 1.5 and 4.0 KW models.

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Summary of Contents for MidNite Solar MNCLIPPER

  • Page 1 MidNite Solar Clipper Instructions The MNCLIPPER works with the MidNite Solar Classic MPPT Charge Controller to provide the highest level of performance and protection possible. Features:  Helps protect turbine from overspeed.  Braking feature included.  Convenient switching between run / turbine Stop.

  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS - These instructions contain important safety and operating instructions for the MidNite Solar MNClipper. 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 3: Theory Of Operation

    Clipper Instructions (continued) Theory of operation: The Classic charge controller uses its AUX output to control the Clipper. As the batteries become charged and loads lessen the voltage will rise. When the voltage reaches pre-set levels, the Classic will send a pulse width modulated signal to the Clipper.
  • Page 4 Clipper Instructions (continued) Caution: Parts of the Clipper get hot during normal operation and high voltage is present at many locations. Do not touch any internal components of the Clipper until all power has been removed and the Clipper has had time to cool down.

  • Page 5: Installation

    Mounting the MNClipper: Mounting the MNClipper is not a difficult task but a little planning now can save a lot of grief later. It is recommended that you read and fully understand all the installation instructions and safety precautions before proceeding.
  • Page 6 Clipper Instructions (continued) Use a level and hold the top mounting bracket on the wall in a horizontal position and mark on the wall where the mounting screw holes will be placed. The mounting brackets are designed to line up with 16” centers. If required, drill pilot holes using a #10 (0.193”...
  • Page 7 Clipper Instructions (continued) Wiring the Clipper: Typical three phase system with Classic and Clipper Do not alter factory pre-wired connections! (Shown with optional equipment) Required Circuit breakers and grounds are not shown for clarity. The Clipper is a complex device and should only be installed by an experienced installer! The wiring diagrams beginning on page 16 show the various configurations of the Clipper.
  • Page 8 Clipper Instructions (continued) Clipper Bottom Knockout Location Knockouts for MNEDC Circuit Breakers. A circuit breaker is required for the input and the output of the Classic. Refer to the Classic manual for the correct breaker size for your system. Clipper Side Knockout Location Clipper Dimensions: 25.411 Tall X 15.41 Wide 26.961 Tall including mounting brackets...
  • Page 9 Clipper Instructions (continued) AC Clippers: Connect phases 1, 2 and 3 (Phase order 1,2,3, is interchangeable) from the turbine to the corresponding lugs on the large terminal block at the lower right of the Clipper. Knockouts are located on the sides and bottom of the Clipper for wire entry/exit.
  • Page 10 Clipper Instructions (continued) DC Clippers: Connect the turbine’s DC output to the corresponding lugs Positive and negative on the large terminal block at the lower right of the Clipper. Knockouts are located on the sides and bottom of the Clipper for wire entry/exit. Be sure to use appropriate grommets / conduit hubs to protect wiring from chafing.
  • Page 11 Clipper Instructions (continued) Clipper set-up and Clipping Voltage: Before operating the Clipper for the first time it is necessary to set the desired upper voltage limit (Fail-Safe Clipping Voltage). The clipping voltage is determined by what your charge controller can safely allow. The Classic charge controller is available in 150, 200 and 250 volt versions.
  • Page 12 Clipper Instructions (continued) Controlling the Clipper with a Classic Charge Controller. The Classic charge controller has a PWM (Pulse Width Modulation) output that can be used to control the Clipper’s output voltage. This will provide very precise control of the power being produced. Refer to the “Configuring Auxiliary Input/Output”...
  • Page 13 Clipper Instructions (continued) Parallel Clippers: On larger turbines two Clippers may be used in parallel for greater capacity. When used with 1 or 2 Classic charge controllers the AUX2 output from the Master Classic is connected to the AUX PWM inputs of both Clippers. The AC or DC Inputs are applied to the inputs of both Clippers. You cannot however mix AC and DC Clippers.
  • Page 14 Clipper Instructions (continued) Remove the two screws at the bottom of the resistor module. Step 3. Step 4. Position the new module in the Clipper chassis with the terminal block toward the middle of the Clipper and slide the mounting tabs into position. Secure the module with the screws removed in Step 3. Step 5.

  • Page 15: Troubleshooting

    Clipper Instructions (continued) To verify proper Clipper operation: In low wind go to the Classics Aux 2 menu and turn it to Manual ON. Open the clipper door and see if the green LED on the relay is lit. If it is then continue to step 2, if not we need to look at the PWM wiring between the Classic and the Clipper.
  • Page 16 Clipper Instructions (continued) 16 | P a g e 1 0 - 1 7 1 - 1 R E V : E...
  • Page 17 Clipper Instructions (continued) 17 | P a g e 1 0 - 1 7 1 - 1 R E V : E...
  • Page 18 Clipper Instructions (continued) 18 | P a g e 1 0 - 1 7 1 - 1 R E V : E...
  • Page 19 Clipper Instructions (continued) Check out the MidNite Solar forum at: http://midniteftp.com/forum/ Not only will you find advice from others who have been there, but also several of the folks at MidNite drop by to answer questions, admire system photos, and just hang out.
  • Page 20 MidNite Solar offers an extended warranty for all the Classic MPPT charge controllers. Six months prior to the end of the warranty period customers can ship their Classic back to MidNite Solar with a check for $147 dollars plus shipping and we will replace any wearable parts and do a general tune-up. This will extend the warranty by 2 additional years.