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By using the product, users acknowledge their understanding of these disclaimers and agree to use the product at their own risk. Sol-Ark reserves the right to update or modify product information, specifications, and guidelines without prior notice.
Warnings Read this entire document before installing or using the Sol-Ark 15K-2P-N inverter. Failure to follow any of the instructions or warnings in this document can result in electrical shock, serious injury, or death. Damage to the 15K-2P-N inverter is also possible, potentially rendering it inoperable.
Lead Acid battery types, including but not limited to Flooded Lead Acid [FLA], Gel, and AGM battery types, often require specific charging methods or work best in certain conditions. The Sol-Ark inverter may not meet such requirements, or it may require modification to the Sol-Ark’s charging and discharging parameters.
The box should include all items shown in the component guide. If there is damage or missing parts, immediately call the phone number (USA) +1 (972) 575-8875 Ext. 2. COMPONENT GUIDE The Sol-Ark 15K-2P-N system includes the following components: Component Description...
1.3 Connection Requirements 1. Sol-Ark 15K-2P-N Torque Values for Terminals Do not use impact drivers to tighten any fasteners on the Sol-Ark Terminal / Breaker Torque [in-lb] Torque [Nm] “LOAD” 165 in-lb 18.6 Nm “GRID” 165 in-lb 18.6 Nm “GEN”...
"GRID" terminal. • An external disconnect must be installed between the interconnection and the Sol-Ark. Size the disconnect according to code. • Connect the "LOAD" output to the Essential Loads Panel. Follow electric code to select proper wire gauge.
National Electrical Code®, paragraph 110.26 and Canadian Electrical Code® CSA C22.1 are adhered to. • The Sol-Ark 15K-2P-N is a NEMA 3R - IP65 enclosure that is rated for outdoor installation but can also be installed indoors. •...
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• Mount the inverter in the optimal orientation as shown below. 15K Installation Guide | SK140-0001-004...
C. Battery breakers must be OFF when wiring. If your battery bank does not have internal breakers, maintain the necessary safety measures when handling. The 15K-2P-N reaches a max battery charge/discharge of 275A if using both sets of battery terminals. If only one set of terminals is used, the max battery charge/discharge will be limited to 160A Sol-Ark 15K-2P-N is a 48V nominal system.
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Multi-Terminal Installation The two battery input terminals of the 15K-2P-N will parallel batteries internally to ensure a common connection between battery banks and simplify battery installations. If a charge / discharge rate of 275A is needed, the batteries must be connected to both input terminals.
2.3 Battery Communication RJ-45 Configurations The Sol-Ark 15K-2P-N inverter achieves battery communications through a single RJ-45 port labeled “Battery CANBus”. This port combines the RS-485 and CANBus pin configurations shown below. Both “Modbus RS485” and “Battery CANBus” ports are capable of Modbus communication.
E.M.P Systems Only – Suppressor Installation If you purchased your system with Lightning / EMP Hardening, most of the protection is within the Sol-Ark. However, additional EMP suppressors are included to protect home appliances and solar panels. The Sol-Ark 15K-2P-N includes: •...
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AC Coupling The Sol-Ark 15K-2P-N is a system that supports the addition of AC coupled solar panels. The max solar input power can be expanded by coupling micro or string inverters into the “GEN” or “LOAD” terminals. A full AC coupled solar system is not recommended as power control and monitoring is limited.
00 | 00 min in the "Generator Exercise Cycle Day & Time" option. Improve the Generator & Sol-Ark Compatibility Navigate through the menus and program the following settings to improve the Sol-Ark and generator compatibility and operating range to avoid frequent disconnections.
“A” is how many amps (DC) are supplied to the battery from a generator. Adjusting and limiting the GEN or GRID “A” value will ensure that small generators are not overloaded when charging the battery bank. If connecting more than one Sol-Ark in parallel, multiply the Gen or Grid “A”...
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Wi-Fi dongle (antenna) BMS Port (CAN/RS485) • This port is used to set up a Lithium Battery in closed-loop communication with the Sol-Ark 15K-2P-N. (See the Battery Communications Integration Guide on the Sol-Ark website at www.sol-ark.com/battery-partners). • You must use an RJ45 connector.
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Install Filter Rings B For each of the three filter rings B: wrap the wires around it twice, then thread the end of the wires through the filter ring. Do this for each of the components below. • Batt _ Temp _ in (1,2), CT_L1_in (3,4), CT_L2_in (5,6): Wrap these wires around one filter ring B. •...
The CT sensors (or limit sensors) enhance system capabilities by enabling the use of the system work modes known as “Limited Power to Home” (Meter Zero) and “Grid Peak-Shaving”. The CTs will measure and calculate total load demand which the Sol-Ark 15K-2P-N will then use to accurately supply and offset all existing loads (Meter Zero).
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• Only one pair of CT sensors must be wired to the designated “Master” inverter. • CT sensors are essential for multi-Sol-Ark systems as “Limited Power to Home” mode is highly recommended. CT Sensors for 120V/208V Three-Phase • Install CT1 on L1 and CT2 on L2 of inverter 1. Program inverter 1 to Master, Phase A.
The (B, B) emergency stop pins of the Sol-Ark 15K-2P-N are an ordinarily open contact that triggers rapid shutdown (RSD) when closed. RSD will cut all power, including the Sol-Ark’s internal power supply and stop all AC outputs. The internal 12Vdc (-3%) power supply of the Sol-Ark (pins 15 &...
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Option 2: RSD transmitter draws greater than 100mA If a transmitter is equal to or more than the maximum 100mA limit, it can still be integrated into the Sol-Ark inverter through an external power supply connected to the “LOAD” output.
Do not ground PV+ or PV-. Verify polarity in each PV string. Backward polarity will measure 0Vdc by the Sol-Ark and will cause long term damage. PV alone turns LCD screen only. Inverter requires grid and/or batteries to operate, otherwise an “OFF” message will appear.
TURN OFF the battery breakers. Wait a moment (~1 min) to ensure the inverter is completely de-energized. Make sure that the Sol-Ark is properly connected to the batteries, solar panels, “GRID”, “GEN”, and “LOAD”. Reverse the steps to turn ON the Sol-Ark.
Normal Alarm Green Green Green → DC Solar Panels connected → Grid is connected → Sol-Ark is fully energized* → Alarm state. Check the alarms menu. and providing voltage. and providing voltage. and inverting power. Home Screen→ → “System Alarms”...
3.2 Main Menus Main Screen Hold 4 s to force Smart PV power generation graph Grid usage graph Loads Settings Details Screen Solar power production Grid power Load power Battery power Sell (-) / Buy (+) consumption Charge (-) / Discharge (+) 15K Installation Guide | SK140-0001-004...
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• Battery temperature will measure 25°C by default if the battery sensor is not connected. • DC Temp: Sol-Ark 15K-2P-N does not have internal DC temperature sensors. Temperature reading can be ignored. • AC Temp: Internal AC conversion side temperature.
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System Setup Menu Information provided by the BMS (3,4) 15K Installation Guide | SK140-0001-004...
UPS Time: Backup transfer time to essential loads upon grid disconnection. Default value of 5ms. Factory reset Restrictions: Changes to these settings must be previously authorized by Sol-Ark technical support agents. Parallel Parallel: Enables communications between parallel inverters. “Master” and “Slave” inverters must be programmed.
Refer to section 2.12 for power cycle instructions. BMS Lithium Batt: Allows closed-loop communication with our tested batteries included in our “Battery Integration Guide”. Refer to www.sol-ark.com/battery-partners for complete list of compatible batteries. Activate Battery: This option MUST be selected if the system has batteries, especially Lithium batteries.
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Disable and press OK to disengage. The generator will not provide power during this test if grid power is available. The gen must be in automatic mode if applicable and must have a two-wire start (dry-contact, normally open) connected to the Sol-Ark.
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To use the “GEN” terminal as an AC coupling input for micro inverters or string inverters, enable " For AC Coupled Input to Gen”. In off-grid systems, the Sol-Ark will use frequency shifting to control the AC coupled solution based on the battery SOC. The meaning of “Smart Load OFF Batt” and “Smart Load ON Batt” will change in this mode.
3.5 Limiter The Sol-Ark 15K-2P-N inverter will simultaneously utilize different available power sources to satisfy load demand in the electrical service panels (essential loads panel / main service panel). The following work modes let you determine how generated power is utilized.
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Limited Power to Home + Grid Sell: This mode will NOT limit solar production to home demand. In this mode, the inverter delivers power to the “LOAD” terminal (essential loads panel) + excess power to the “GRID” terminal (main service panel AND grid). The Sol-Ark will monitor grid sell and load consumption simultaneously (with +/ - 3% error from CT sensors).
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Default and recommended option. Sets the solar power priority of the system to charge batteries first. Do NOT change unless instructed by Sol-Ark technical support. Load First: Sets the solar power priority of the system to cover loads demand first and deliver remaining power to batteries.
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LF1/LF2/LF3: Under frequency protection point. F(W) F(W): Enables the use of Frequency-Watt. The Sol-Ark regulates its power output to the grid as a function of the frequency to support grid stabilization during over and under-frequency conditions. Droop F: Percentage of inverter’s nominal power increase / decrease per Hert (Hz).
Absorption Stage When the battery has reached the absorption voltage setpoint, the Sol-Ark inverter uses constant-voltage regulation to maintain battery voltage at the absorption setpoint, preventing overheating and excessive battery gassing. The battery is allowed to come to a full state of charge at the absorption voltage setpoint.
57.50Hz 108.0V 57.50Hz HECO Grid Compliance Verification for Sol-Ark In cases where HECO compliance requirements are mandated, it’s essential to program the following grid parameters according to the HECO specifications. Follow the next GUI screens, program the settings, and verify alignment with HECO compliance.
Tech Support for assistance: support@sol-ark.com Parallel systems REQUIRE a joint battery bank. If you do not have a battery, keep all Sol-Ark inverters OUT of parallel and set every System to “Grid Sell” Mode. D. All INPUTS/OUTPUTS must be shared among ALL parallel inverters, except for DC solar inputs.
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Parallel Systems Sol-Ark 15K-2P-N @ 120/240V Split-Phase Continuous output power Max. Grid Continuous output power Peak power 10 sec # of inverters in parallel with batteries (kW) Passthrough Current with PV (kW) (kVA) 1000 1200 1400 1600 1800 2000 2200...
Parallel setup tab Parallel Configuration (Example on a 3 Phase System-Balanced). Phase A-B-C A 3-Phase balanced system requires at least 3 Sol-Ark Units. Programming and wiring should follow the graphics below. A B | A B B C | B C...
Troubleshooting Guide with Phase Sequence If the screen of the Sol-Ark inverter shows the error shown below, ensure the phase sequence follows AB-BC-CA convention. The message “Grid Phase Wrong” is displayed when the inverter does not detect the correct phase sequence. This situation can cause overloads faults in the system (F18, F26, F34) even with the “LOAD”...
Insert the ethernet cable through the plastic enclosure and connect the cable to the RJ45 port. C. Reassemble the dongle housing and plug the dongle into the Sol-Ark, securing it with screws. You will see solid red and green lights after a couple of minutes.
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C. Create the Plant. For Installers: Installers are advised to first create the plant and configure the system before sharing it with the owner. After creating and configuring the plant, the installer can share and grant manager permissions to the owner by navigating to “My Plants”...
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Note: The Wi-Fi configuration tool can be accessed at any other time by tapping “Me” at the bottom right corner, then “Tools” and finally “Wi-Fi configuration”. STEP 3 shows an alternative method of connecting the Wi-Fi dongle to a local network through an IP address.
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Internet browser IP address b) Wi-Fi network scan If the connection is successful, you will see the following LED indicators. SOLID: Connected and powered by the Sol-Ark inverter. SOLID: Connected to the router and to MySolArk. INTERMITTENT : Connected to the router but not to the server (usually a VPN or Firewall problem).
6.2 LED Indicator and troubleshooting When both the red and green LEDs on the Wi-Fi dongle are consistently illuminated, it signifies normal operation, while flashing indicates data transmission. If this isn't the case, reference the next table of LED indications for troubleshooting and corrective measures. LED: Device communication indicator.
7. Wiring Diagrams The following diagrams are general use cases. Installers are reminded that adherence to local electrical codes and regulations is mandatory. While these diagrams offer general guidance, they may not encompass all variations and specifics required by local codes. Consult with relevant authorities and ensure compliance before proceeding with any installation.
• Verify Neutral wire connection (0Vac referenced to GND) • Check the programmed frequency, and verify the Sol-Ark measures 120V between L and N • If the system is overloading, verify that proper phase sequence between “GRID” and “LOAD” terminals...
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The Batt SOC% is not reaching 100% • The Sol-Ark might be in the calibration phase and estimating the battery SOC. We suggest waiting three full days to let the unit go through the 4-stage charging curve to converge to an accurate percentage •...
20%, or Lithium BMS has shut down. If battery settings are incorrect, this can also happen. Sol-Ark is programmed to BMS Lithium Battery Mode but cannot communicate with a BMS. BMS_Communication Fault BMS_Err_Stop is enabled, but cannot communicate with a battery BMS Gen_Volt_or_Fre_Fault Generator Voltage or Frequency went outside the allowable range.
13. For Off-Grid systems: The mode “General Standard” is programmed and the V & f ranges are increased 14. When “ Grid Sell” is enabled, the Sol-Ark sells power back to the grid (negative HM measurements for L1, L2) ...
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Any other event not foreseeable by Sol-Ark LLC Sol-Ark LLC liability for any defective Product, or any Product part, shall be limited to the repair or replacement of the Product, at Sol-Ark LLC discretion. Sol-Ark LLC does not warrant or guarantee workmanship performed by any person or firm installing its Products. This warranty does not cover the costs of installation, removal, shipping (except as described below), or reinstallation of Products or parts of Products.
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