CONTENTS 1. INSTALLATION OVERVIEW ........................1.1 INTRODUCTION ..........................4 1.2 SYSTEM VOLTAGE AND CURRENT ....................4 1.3 BATTERY TYPE ..........................4 1.4 LOW VOLTAGE DISCONNECT FUNCTION (USB PORT) ...............4 1.5 REGULATORY INFORMATION ......................4 1.6 SPECIFICATIONS ..........................4 2. WARNINGS ............................... 3. TOOLS AND MATERIALS NEEDED ......................
1.2 SYSTEM VOLTAGE AND CURRENT The GP-PWM-10-FM is intended for use at 12 VDC nominal system voltage and is rated for a maximum continuous DC input current of 12.5A and input voltage of 35VDC.
INSTALLATION OVERVIEW 1.6 SPECIFICATIONS DESCRIPTION VALUE Nominal System Voltage 12 VDC Dimensions (H x W x D): Range of Battery Input Voltage 9 – 15.5 VDC 149 x 98 x 32 mm Maximum Solar Continuous DC Charge Current Input 12.5 ADC 5.87 x 3.86 x 1.26 in Charging Output DC Voltage Range 9 –...
2. WARNINGS Electricity can be very dangerous. Installation should be performed only Disconnect all power sources by a licensed electrician or qualified personnel. Observe all safety precautions of the battery manufacturer when handling Battery and wiring safety or working around batteries. When charging, batteries produce hydrogen gas, which is highly explosive.
Kit, follow the Installation Guide provided. Otherwise, follow manufacturer’s instructions for solar module mounting and wiring. 3. Select wire type and gauge. If this GP-PWM-10-FM was purchased as part of a Go Power! Solar Power Kit, appropriate wire type, gauge, and length is provided. Please continue to Section 6, “Operating Instructions.” If the GP-PWM-10-FM was purchased separately, follow the instructions included here.
6. Mounting the GP-PWM-10-FM. Mount the GP-PWM-10-FM to the wall using the included four mounting screws. IMPORTANT: You must set the battery type on the GP-PWM-10-FM before you begin to use the controller (follow steps in Section 7). The default battery setting is for AGM/LiFePO4 batteries.
7.1 SYSTEM VOLTAGE AND CURRENT When the GP-PWM-10-FM is connected to the battery, the controller will go into Power Up mode. Icons Displayed: All segments of the numerical display; backlight blinks. Depending on the battery voltage when the GP-PWM-10-FM Power Up occurs, the controller may do a Boost Charge or quickly go into Float Charge. The Charging Profile selected will commence the following day after a Power Up (refer to the Charging Profile Chart on page 11 for more details).
Note to the target charging voltage. Auto Equalize: The GP-PWM-10-FM has an automatic equalize feature that will charge and recondition your batteries at least once a month at a higher voltage to ensure that any excess sulfation is removed. This mode should not be entered unless you are using a flooded battery.
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OPERATING INSTRUCTIONS Push the B Button to show the PV charging current. Icons Displayed: Ampere Symbol (A), Battery SOC Push the B Button to show the battery state of charge (shown as a percentage). Icons Displayed: Battery SOC, Percent Symbol (%) A value of 100% will only be displayed after a Boost or Equalize charge completes.
Press and hold the A Button for 6 seconds to reset the counter to zero. 7.6 ERRORS OVER VOLTAGE If the GP-PWM-10-FM experiences a battery over voltage (15.5V), the controller will stop operating, and the display will begin to flash with all icons. The controller will resume operating when the error is cleared. Icons Displayed: All symbols...
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8. DISPLAY SYMBOLS SYMBOLS INDICATOR FOR Day Time: PV Charge Current Night Time Battery Voltage Battery State of Charge SEALED Sealed/Gel AGM/LFP FLOODED Flooded OTHER SYMBOLS USB charger ON (when charger is OFF, no symbol will show) Battery voltage is lower than 11.0V Whole display will start to blink Battery voltage >...
9. USB CHARGING The GP-PWM-10-FM offers a standard USB connector for delivering 5.0 VDC to small mobile appliances such as cell phones, tablets or small music players. This charging port is capable of supplying up to 1500 mA of current.
There may be a slight difference between the battery voltage displayed on the GP-PWM-10-FM display and the battery voltage measured at the battery terminals. When troubleshooting using a voltmeter, check both the battery voltage at the GP-PWM-10-FM controller terminals and battery voltage at the battery terminals.
11. TROUBLESHOOTING PROBLEMS How to Read this Section Troubleshooting Problems is split into three sub-sections, grouped by symptoms involving key components. Components considered irrelevant in a diagnosis are denoted ‘Not Applicable’ (N/A). A multimeter or voltmeter may be required for some procedures listed. It is imperative all electrical precautions stated in the Warning Section and outlined in the Installation Section are followed.
TROUBLESHOOTING PROBLEMS 11.3 PROBLEMS WITH CURRENT Current Reading: 0 A Time of Day: Daytime, clear sunny skies Possible Cause: Current is being limited below 1 Amp as per normal operation or poor connection between solar array and controller. How to tell: The State of Charge (SOC) screen is close to 100% and the Sun and Battery icon are present with an arrow between.
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TROUBLESHOOTING PROBLEMS 11.4 CONTROLLER FLASHING Possible Cause: This behavior is usually the controller dealing with a very high C or voltage rate (Above 15.5 volts). Even though the controller can handle up to 30A, if the battery capacity is too small for the panel input current. The voltage shoots up too high, too quickly, tripping the high voltage flashing. Solution increase battery capacity.
12. LIMITED WARRANTY Go Power! warrants the GP-PWM-10 for a period of five (5) years from the date of shipment from its factory. This warranty is valid against defects in materials and workmanship for the five(5) year warranty period. It is not valid against defects resulting from, but not limited to: • Misuse and/or abuse, neglect or accident • Exceeding the unit’s design limits • Improper installation, including, but not limited to, improper environmental protection and improper hook-up • Acts of God, including lightning, floods, earthquakes, fire, and high winds • Damage in handling, including damage encountered during shipment This warranty shall be considered void if the warranted product is in any way opened or altered.
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