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GP-PWM-10 

5.0  Operating Instructions 

5.1  Power Up 

Please check your battery manufacturer’s specifications to select correct battery type. The unit 
provides 4 battery types for selections: Gel, AGM, WET (conventional lead acid), and Calcium. 

5.2  Setting the Battery Type / Charging Profile 

Press 

BATTERY TYPE button 

and hold for 3 seconds to go into 

your battery type selection mode, the battery type you select will 
be shown on the LCD meter. The controller will automatically 
memorize your battery type setting. 

Incorrect battery type setting may damage your battery. 

When the controller powers on, the unit will run self-test mode and automatically show below 
items on LCD before going into charging process. Refer to the Battery Charge Profile Chart on 
for details on each profile. 

 
Self-test starts, digital 
meter segments test 

 
Software version test 

 
Rated voltage 

 

Current test

 

 

After going into charging process, the LCD displays the charging states as below. Press 

VOLT / 

AMP button 

in sequence, the LCD will display in turn with Battery Voltage, Charging Current, 

Charged capacity (Amp-hour) and Battery Temperature (if external temperature sensor 
connected).  

Battery Charge Profile Chart 

The 6 LED’s indicate the 
charging status and the battery 
condition 

 

 

 

 

 

 

RED 

BLUE 

GREEN 

GREEN 

YELLOW 

RED 

Solar Power Present- No 
battery connected 

ON 

OFF 

OFF 

OFF 

OFF 

Flash 

Soft charging 

ON 

Flash 

OFF 

OFF 

OFF 

ON 

Bulk charging 

ON 

ON 

OFF 

Subject to battery voltage 

Absorption charging 

ON 

ON 

OFF 

ON 

OFF 

OFF 

Equalization charging 

ON 

ON 

OFF 

ON 

OFF 

OFF 

Float charging 

ON 

OFF 

ON 

OFF 

OFF 

OFF 

Solar panel weak 

Flash 

OFF 

OFF 

Subject to battery voltage 

At night no charge 

OFF 

OFF 

OFF 

Subject to battery voltage 

Battery Voltage below 11.5V (+/-
0.2V) 

ON 

ON 

OFF 

OFF 

OFF 

ON 

Battery Voltage between 
11.5V - 12.5V(+/-0.2V) 

ON 

ON 

OFF 

OFF 

ON 

OFF 

Battery Voltage above 12.5V (+/-
0.2V) 

ON 

ON 

OFF 

ON 

OFF 

OFF 

 

 

Summary of Contents for GP-PWM-10

Page 1: ...Installation Overview 2 2 0 Warnings 2 3 0 Choosing a Location 3 4 0 Installation Instructions 3 5 0 Operating Instructions 4 6 0 Frequently Asked Questions FAQs 5 7 0 Troubleshooting 6 8 0 General Wa...

Page 2: ...20 to 50 C 13 to 122 F Storage Operating Temp 40 to 85 C 40 to 185 F Humidity 100 N C Protection Battery reverse polarity solar array reverse polarity over temp PV short circuit over current 2 0 Warn...

Page 3: ...or other applications please refer to standard wire guide 95 Watt 10 Wire Gauge 160 Watt 10 Wire Gauge Identify the polarity pos and neg on the cable used for the battery and solar module Use colored...

Page 4: ...t Software version test Rated voltage Current test After going into charging process the LCD displays the charging states as below Press VOLT AMP button in sequence the LCD will display in turn with B...

Page 5: ...run this stage to bring the internal cells as an equal states and fully complement the loss of capacity Gel and AGM battery do not run Equalization charge Float Charge Battery is fully charged and ma...

Page 6: ...troller battery terminals with a voltmeter and compare with the voltage reading at the battery terminals If there is a voltage discrepancy of more than 0 5 V there is an excessive voltage drop Remedy...

Page 7: ...have an open circuit voltage between 17 and 22 volts If you have more than one solar module you will need to conduct this test between the positive and negative terminals of each module junction box...

Page 8: ...minals on the solar controller First connect the battery to the controller and then connect the solar panel to the controller The controller will not work unless there is a battery connected to the ba...

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