Table of Contents Introduction ………………………………………………………………………... 1.0 Precautions Product Overview …………………………………………………………………. 2.0 Table 1: Differences in Models Controller Features ………………..………………………………………………. 2.1 Application ………………………………………………………………………... 2.2 Installation and Operations ………………………………………………………… 3.0 Warning Location …………………………………………………………………………… 3.1 System Design Basics ……………………………………………………………... 3.
1.0 Introduction Thank you for selecting a SunPumps SCS series solar pump system. The SCS series pump and PCC series Sensorless Brushless DC - pump controller are the key components to high quality solar powered pumping systems. Their stand-alone, pollution free and low noise operation makes them an ideal solution for remote homes, irrigation projects, and wildlife and stock watering without violating the environment.
2.1 Controller Features 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Current boosting for matching the load requirements of the pump. Voltage regulation of the solar electric array at its maximum power point. (MPPT) Over-current protection via integrated electronic circuit breaker. Reverse polarity protection (10 amperes maximum) on the input terminals. Voltage and current limiting to pump motor. Transient protection and surge suppression.
The PCC-series controller can either be mounted indoors or outdoors. Locate all system equipment as close as possible to each other. For top of pole mount racks, the controller is usually mounted on the north side (shaded side) of the mounting pole. The controller must be mounted in a vertical position for proper cooling and to keep the electronics dry. The pole should be located close to the well (bore hole).
Figure 1 Solar Pump System Terms & Head Calculations Water Tank Vertical Lift Sanitary Well Seal Pumping Level _____________ Feet Vertical Lift _____________ Feet Friction Loss _____________ Feet + Drop Pipe + Submersible Pump Cable Draw Down (See Friction Loss Chart) = Total Dyn.
3.4 Pump Installation 1. The well should be clean and disinfected before the pump is installed. You should always clean and develop a new well before installing the pump. 2. Write the pump, motor and controller model number and serial number in the space provided on the last page in this Instruction Manual. This information will be needed when filling out the Warranty Card. And will aide in any troubleshooting which may be necessary. 3.
Figure 2 Controller Wiring Diagram
1. After mounting the controller, switch the controller to the OFF position. 2. Verify all dip switches are off at this time. 3. Connect ground rod conductor to the controller chassis ground block. 4. Connect solar module frame ground conductor to controller chassis ground block. 5. Connect the green pump ground conductor to controller chassis ground block. 6. Connect pump motor leads to the corresponding “Pump Motor” terminals on the controller.
Figure 3 Dip Switch Settings Switch Switch Number Position 1 Description Function Default Setting OFF Remote Switch Logic Turns pump off when terminals connect. OFF 1 ON Remote Switch Logic Turns Pump on when terminals connect. OFF 2 OFF Low Water Cutoff Logic Turns pump off when terminals connect. OFF 2 ON Low Water Cutoff Logic Turns pump on when terminals connect.
3.6 Controller Settings The PCC series controllers have several settings (see figure 3). Most features include system configuration adjustments, some of which are user selectable by an eight position DIP-switch located on the face of the controller. Switch 1 is the Remote Switch Logic. With this switch off (down), terminals “RS+” and “GND” must be connected to turn the controller off. With this switch on (up), terminals “RS+” and “GND” must be connected to turn the controller on.
Remote Switch The Remote Switch interface can serve as an automatic system shutdown when used with a water storage tank mounted float switch, a pressure switch or it can also serve as a manual system shutdown with a remote system ON/OFF toggle switch. The remote logic circuit allows the use of standard “Pump-Up or Pump Down” float switches. Please refer to the following operation scenarios for configuration options.
Output Power Limit Circuit (Motor Speed Control) The Output Power Limit Control circuit is used to control the speed of the pump motor and thus the flow rate of the pump. It is primarily used for low producing wells where the pump output is matched to the production rate of the well. However it can also be used any time specific flow rates are required. Output Power Limit Adjustment The purpose of this procedure is to adjust the output power of the controller and thus reduce the water flow of the pump.
Figure 4 Display Screens NOTE: Dip switch 7 will freeze the display on the current screen. If the system is powered up with switch 7 on, the display will only show the SUNPUMPS, INC screen. Turn off switch 7 to unfreeze the display.
4.0 Troubleshooting Sun Pumps, Inc. is dedicated to its customers and will gladly help you trouble shoot any problems with your system. However, especially during the busy summer pumping season, we may not be able to help you right away. Using this trouble shooting guide as your first resource when your system is not working properly can save you valuable time in getting your system fully functional.
FUSE OPEN” the ground fault fuse has been blown. Check your system for ground loops and replace the fuse with a 500 VDC 1A rated fuse. If this does not solve the issue, contact Sun Pumps for further assistance. 7. Check for proper dip switch settings on your controller. Switches 5, 6, and 8 must be in the off position for proper operation. 8. Check for proper controller input voltage. A quick look at the controller display will verify the array voltage.
BEFORE CALLING SUNPUMPS If at all possible when calling Sun Pumps for technical support there are a few things which will help to speed up the process and help us determine the cause of and solution to the system failure. The best way to get help is to call while you are physically at the location of your pump, have good sunlight, and have a multimeter and a screwdriver with you. Furthermore, please fill out the form below before calling.
Warranty Statement SCS Series Submersible Pumps PCC Series Pump Controllers Limited Warranty – Twenty Four Months SunPumps warrants to the original consumer that its products shall be free from defects in material and workmanship under normal applications and service conditions for a period of twenty-four (24) months after the original date of purchase, but not to exceed thirty (30) months from the date of manufacture.
