Go Power GP-PWM-30-SQ Owner'S Manual Download Page 7

GP-PWM-30-SQ

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6.0 Frequently Asked Questions (FAQs)

Visit gpelectric.com to read the Frequently Asked Questions section on our website.

7.0 Troubleshooting

7.1 Problems with the Display

Display Reading:

Blank

Time of Day:

Day / Night

Possible Cause:

(1) Battery or fuse connection and/or solar array connection (Daytime only).

(2) Battery or fuse connection (Night only).

How to tell:

(1) & (2) Check the voltage at the controller battery terminals with a voltmeter and compare with

a voltage reading at the battery terminals. If there is no voltage reading at the controller battery

terminals, the problem is in the wiring between the battery and controller. If the battery voltage is

lower than 6 volts the controller will not function. For the solar array, repeat steps 1 and 2

substituting all battery terminals with solar array terminals.

Remedy:

(1) & (2) Check all connections from the controller to the battery including checking for correct

wire polarity. Check that all connections are clean, tight, and secure. Ensure the battery voltage

is above 6 volts. Check the condition of the fuse.

7.2 Problems with Voltage

Voltage Reading:

Inaccurate

Time of Day:

Day / Night

Possible Cause:

(1) Excessive voltage drops from batteries to controller due to loose connections, small wire

gauge or both.

How to tell:

(1) Check the voltage at the controller 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:

(1) Check all connections from the controller to the battery including checking for correct wire

polarity. Check that all connections are clean, tight, and secure. Shorten the distance from the

controller to battery or obtain larger gauge wire. It is also possible to double up the existing

gauge wire (i.e. two wire runs) to simulate a larger gauge wire.

7.3 Problems with Current

Current Reading:

0 A

Time of Day:

Day, clear sunny skies

Possible Cause:

(1) Current is being limited below 1 Amp as per normal operation.

(2) Poor connection between solararray and controller.

How to tell:

(1) The State of Charge (SOC) screen is close to 100% and the Sun and Battery icon are

present with an arrow between.

(2) With the solar array in sunlight, check the voltage at the controller solar array terminals with

a voltmeter. If there is no reading at the controller solar array terminals, the problem is

somewhere in the wiring from the solar array to the controller.

Remedy:

(1) Check all connections from the controller to the array including checking for correct wire

polarity. Check that all connections are clean, tight, and secure. Continue with the solutions

below for additional help on low current readings.

Summary of Contents for GP-PWM-30-SQ

Page 1: ...verview 2 2 0 Warnings 3 3 0 Choosing a Location 4 4 0 Installation Instructions 4 5 0 Operating Instructions 5 6 0 Frequently Asked Questions FAQs 7 7 0 Troubleshooting 7 8 0 General Warranty 8 9 0 W...

Page 2: ...anel to battery 2 CHARGING CHARACTERISTICS Minimum battery start charging voltage VDC Soft start charging voltage Soft start charging current 50 PWM duty Bulk charge voltage Absorption charging voltag...

Page 3: ...um Power Current Imp of the solar PV strings in parallel The resulting system Imp current is not to exceed 30A The voltage of the array is the rated open circuit voltage Voc of the PV array and is not...

Page 4: ...uge For other applications please refer to standard wire guide 100 Watt 10 Wire Gauge 170 Watt 10 Wire Gauge Identify the polarity pos and neg on the cable used for the battery and solar module Use co...

Page 5: ...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 bel...

Page 6: ...matically run this stage to bring the internal cells as an equal state and fully complement the loss of capacity LTO Gel Life P04 and AGM battery do not run Equalization charge Float Charge Battery is...

Page 7: ...wire gauge or both How to tell 1 Check the voltage at the controller battery terminals with a voltmeter and compare with the voltage reading at the battery terminals If there is a voltage discrepancy...

Page 8: ...uld 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 b...

Page 9: ...rcuits 30A fuse for the GP PWM 30 SQ as close to the battery panel as possible The Solar Controller has 4 terminals which are clearly marked Solar and Battery There is a 12V and earth GND terminal for...

Page 10: ...2013 GO POWER GP_MAN_GP PWM 30 SQ_RevH gpelectric com...

Page 11: ...11 TOP BOTTOM...

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