EPEVER MPPT Solar Charge Controller

Thank you for selecting the Tracer-CPN MPPT solar charge controller. Please read this manual carefully before using the product and pay attention to the safety information.

Caution: Do not install this product in humid, salt spray, corrosion, greasy, flammable, explosive, dust accumulative, or other severe environments.

A common-negative controller for a common-negative system, such as the motorhome, is recommended. The controller may be damaged if a common-positive controller is used and the positive electrode is grounded in the common-negative system.

Connect a fast-acting fuse in series with the battery positive (+). The fast-acting fuse must be 1.25 to 2 times the rated controller current. The installed distance is within 150mm.

After powering the controller, the battery LED indicator on the controller shall flash green. If it's not green, please refer to chapter 10, Troubleshooting.

1. Overview

The Tracer-CPN solar charge controller adopts the advanced Maximum Power Point Tracking charging technology. It increases system charging efficiency while lowering system cost. The controller supports various batteries, such as sealed, gel, flooded, and lithium batteries. Users can view and modify the operational status and parameters. It can be widely used in solar home systems, traffic signals, street lights, solar garden lamps, etc.

Key Features:

Adopt high-quality components of ST, IR, and Infineon to ensure product lifespan.
Wider working environment temperature.
Apply to lead-acid battery and lithium battery.
Lithium battery self-activating and low-temperature protection function.
The maximum DC/DC conversion efficiency of 98%.
Advanced Maximum Power Point Tracking (MPPT) technology, with tracking efficiency of no less than 99%.
Advanced MPPT control algorithm to minimize the MPP lost rate and lost time.
Accurately recognizing and tracking multiple power points.
PV power limitation function.
Constant voltage output function.
Monitoring and setting parameters via Mobile APP, PC software.
Standard Modbus communication protocol for RS485 bus connections.
Connect the IoT (Internet of Things) and Cloud Server to realize remote monitoring.
The RS485 port can provide a power supply.
Built-in Bluetooth module (Only Tracer-CPN(BLE) supports).
Low self-consumption design, lower than 15mA.
Aluminum housing for better cooling.
Real-time energy statistics function.
IP68 waterproof degree.

2. Appearance

1. RS485 waterproof port: Provides a DC power of 5VDC/200mA and has short-circuit protection. The port is isolation design for Tracer7810CPN/Tracer7810CPN(BLE), and non-isolation design for other series. Pin definition: VCC (+5VDC), A (RS485-A), B (RS485-B), GND (Power ground).

Caution: When the RS485 port is not working, the waterproof cap must be installed to prevent water ingress.

2. Temperature Sensor: If the temperature sensor is short-circuited or damaged, the controller will charge or discharge at a default temperature of 25°C.

3. Charging Status indicator

4. Battery Status indicator

5. Load Positive and Negative Wires

6. Battery Positive and Negative Wires

7. PV Positive and Negative Wires

8. Built-in Bluetooth module: Only the Tracer-CPN (BLE) series are designed with the built-in Bluetooth module.

Load Self-Test Function

The load is automatically turned ON after powering on the controller for 10s. After the load remains ON for 10s, the controller restores to the set working mode.

3. Wiring

Connection Sequence:

Connect components to the controller in the sequence: Battery > Load > PV. Pay close attention to the "+" and "-". Do not connect the fast-acting fuse or circuit breaker during installation. When disconnecting the system, reverse the order.
The Tracer-CPN/Tracer-CPN (BLE) controllers are common-negative; all negative terminals can be grounded simultaneously, or any one can be grounded. However, according to practical application, the negative terminals of the PV array, battery, and load can also be ungrounded. The grounding terminal on the shell must be grounded. This effectively shields electromagnetic interference and prevents electric shock.

4. LED Indicators

Indicator	Color	Status
Green	On Solid	In charging
	Slowly Flashing (1Hz)	PV connection normal but low voltage (irradiance) from PV, no charging
	Fast Flashing (4Hz)	No PV voltage (night time) or PV connection problem
Orange	On Solid	Battery normal
	Slowly Flashing (1Hz)	Battery full
	Fast Flashing (4Hz)	Battery overvoltage
Red	On Solid	Battery under voltage
	Slowly Flashing (1Hz)	Battery over-discharged
	Fast Flashing (4Hz)	Battery overheating
	Fast Flashing (4Hz)	Lithium battery low temperature indicator (orange) flashing simultaneously

Caution: When connecting with a lithium battery, the controller does not recognize the system voltage automatically.

5. Load Working Mode

Manual Mode (Default ON): Load is ON.
Light ON/OFF: Load turns ON at dusk and OFF at dawn. Turn-On voltage (Adjustable): 5V (12V system), delay 10min. Turn-Off voltage (Adjustable): 6V (12V system), delay 10min. (Note: 24V system voltage x 2).
Light ON + Timer: Load turns ON at dusk and OFF after a set time. Working time 1: Light ON. Working time 2: Light OFF.
Real-time Control: Control the load ON/OFF time by setting a real-time clock.

Caution: In the Light ON/OFF and Light ON/Timer modes, the load is turned on after 10 minutes.

6. Accessories (optional) and Software

PC Software: Available at www.epever.com
APP Software: For Android and iPhone, search for "Solar Station Monitor" or "ChargeController(Li)" in the APP Store. EPEVER provides the EP-01 APP.

Note: MT50 does not support the relevant parameters of the lithium battery.

External accessories include MT50, eLOG01, CC-RS485-RS485-150U-4LLT, CC-USB-4M12(M)-150, and EPEVER WEIBL module. Only the Tracer-CPN series support the external EPEVER BLE module; the Tracer-CPN (BLE) series are already designed with a built-in Bluetooth module.

7. Protection

PV Over Current: The controller limits the battery charging current to the rated charge current. An oversized solar array may not work at peak power.
PV Short Circuit: The controller stops charging when the PV input is short-circuited or the short-circuit occurs at low power. Clear faults to resume work. Warning: The controller may be damaged when the PV input is short-circuited on high power.
PV Reverse Polarity: The PV can be reversely connected with the controller if: ①Only the PV is connected to the controller. ②The battery is correctly connected. ③The PV open-circuit voltage is lower than 85V. Warning: The controller will be damaged if the PV array is reversely connected and the PV array's actual power exceeds 1.5 times the rated charge power!
Battery Reverse Polarity: The battery can be reversely connected when the PV is disconnected or reversely connected. Correct the wire connection to resume work. Warning: The controller will be damaged if the PV connection is correct and the battery connection is reversed!
Battery Over Voltage: When the battery voltage exceeds the Over Voltage Disconnect Voltage, the controller stops charging to protect the battery.
Battery Over Discharge: When the battery voltage is lower than the Low Voltage Disconnect Voltage, the controller stops discharging to protect the battery.
Battery Overheating: The controller detects the environment temperature via the external temperature sensor. If the environment temperature exceeds 65°C, the controller stops working and recovers below 55°C.
Lithium battery Low Temperature: When the battery temperature is lower than the low-temperature protection value, lithium battery charging/discharging is stopped. It resumes work when the battery temperature exceeds the low-temperature protection value.
Load Overload: If the load current exceeds 1.05 times the rated load current, the controller disconnects the load after a delay. Overloading must be cleared by reducing the load and restarting the controller.
Load Short Circuit: The load is switched off when a short circuit (2-4 times rated load current) occurs. The controller automatically attempts to reconnect the load five times. If the short circuit protection persists after the fifth attempt, the user must clear the short circuit, restart the controller, or wait for one night-day cycle (night time > 3 hours).
Temperature sensor breakdown: When the temperature sensor is short-circuited or damaged, the controller charges or discharges at 25°C by default to avoid damage to the battery caused by overcharge or over-discharge.
High-voltage Transients: The controller is protected against small high-voltage transients. In lightning-prone areas, additional external arrester is recommended.

8. Technical Specifications

Item	Model	Tracer5206CPN/Tracer5206CPN(BLE)
Rated system voltage	12/24VDC Auto (Lithium battery cannot automatically identify system voltage)	12/24VDC Auto (Lithium battery cannot automatically identify system voltage)
Battery work voltage range	8~32VDC	8~32VDC
Rated charge/discharge current	20A	30A
Rated charge power	260W/12V; 520W/24V	390W/12V; 780W/24V
Max. PV open circuit voltage	60V (at minimum operating environment temperature)	100V (at minimum operating environment temperature)
MPP Voltage range	46V (at 25°C environment temperature)	92V (at 25°C environment temperature)
Battery Type	Lead-acid battery: Sealed (Default) / Gel / Flooded/User; Lithium battery: LiFePO4/ Li-NiCoMn/User	Lead-acid battery: Sealed (Default) / Gel / Flooded/User; Lithium battery: LiFePO4/ Li-NiCoMn/User
Equalize Charging Voltage	Sealed: 14.6V, Gel: No, Flooded: 14.8V, User: 9-17V (x2/24V)	Sealed: 14.6V, Gel: No, Flooded: 14.8V, User: 9-17V (x2/24V)
Boost Charging Voltage	Sealed: 14.4V, Gel: 14.2V, Flooded: 14.6V, User: 9-17V (x2/24V)	Sealed: 14.4V, Gel: 14.2V, Flooded: 14.6V, User: 9-17V (x2/24V)
Float Charging Voltage	Sealed/Gel/Flooded: 13.8V, User: 9-17V (x2/24V)	Sealed/Gel/Flooded: 13.8V, User: 9-17V (x2/24V)
Low Voltage Reconnect Voltage	Sealed/Gel/Flooded: 12.6V, User: 9-17V (x2/24V)	Sealed/Gel/Flooded: 12.6V, User: 9-17V (x2/24V)
Low Voltage Disconnect Voltage	Sealed/Gel/Flooded: 11.1V, User: 9-17V (x2/24V)	Sealed/Gel/Flooded: 11.1V, User: 9-17V (x2/24V)
Boost Charging Voltage (Lithium)	LiFePO4: 14.5V, Li-NiCoMn: 12.5V, User: 9-17V (x2/24V)	LiFePO4: 14.5V, Li-NiCoMn: 12.5V, User: 9-17V (x2/24V)
Low Voltage Reconnect Voltage (Lithium)	LiFePO4: 12.8V, Li-NiCoMn: 10.5V, User: 9-17V (x2/24V)	LiFePO4: 12.8V, Li-NiCoMn: 10.5V, User: 9-17V (x2/24V)
Low Voltage Disconnect Voltage (Lithium)	LiFePO4: 11.1V, Li-NiCoMn: 9.3V, User: 9-17V (x2/24V)	LiFePO4: 11.1V, Li-NiCoMn: 9.3V, User: 9-17V (x2/24V)
Self-consumption	≤10mA(12V); ≤7mA(24V)	≤15mA(12V); ≤9mA(24V)
Temperature compensation coefficient	-3mV/°C/2V (Lithium batteries don't have temperature compensation coefficient)	-3mV/°C/2V (Lithium batteries don't have temperature compensation coefficient)
Communication	RS485/BLE	RS485/BLE
Work temperature	-40°C ~ +50°C (Above 45°C, operate in derating)	-40°C ~ +50°C (Above 45°C, operate in derating)
Enclosure	IP68	IP68
Dimension (L x W x H)	Tracer5206CPN: 147mm x 130mm x 50mm; Tracer5206CPN(BLE): 157mm x 130mm x 50mm	Tracer7810CPN: 155mm x 141mm x 51.5mm; Tracer7810CPN (BLE): 165mm x 141mm x 51.5mm
Mounting hole size	$4.5mm	$4.5mm
Mounting size (L x W)	121mm x 120mm	132mm x 120mm
Power cable (PV/BAT/LOAD)	11AWG (PV), 10AWG (BAT/LOAD)	11AWG (PV), 10AWG (BAT/LOAD)
Net weight	1.30kg	1.59kg

Any changes without prior notice! Version number: V1.1

9. Troubleshooting

Faults	Possible reasons	Troubleshooting
Charging LED is off during the daytime, and sunshine falls on PV modules properly	PV array disconnection	Confirm that PV and battery wire connections are correct and tight.
No LED indicator	Battery voltage may be less than 8.5V	Measure battery voltage with a multi-meter. A minimum of 8.5V is required to start the controller.
No LED indicator	Battery voltage may be less than 8.5V	Measure battery voltage with the multi-meter. A minimum of 8.5V can start up the controller.
Battery LED flashes green quickly	Battery over voltage	Check if the battery voltage exceeds the OVD, and disconnect the PV.
Battery LED is red ON solid	Battery over-discharged	The load will recover when the battery voltage is restored to or above the LVR (low voltage reconnect voltage).
Battery LED flashes red	Battery overheating	The controller will resume when the battery temperature declines to 50°C or below.
The load has no output	Load Overload	① Please reduce the number of electric equipment. ② Restart the controller. ③ Wait for one night-day cycle (night time > 3 hours).
	Load Short Circuit	① Check carefully the loads' connection and clear the fault. ② Restart the controller. ③ Wait for one night-day cycle (night time > 3 hours).
	Load Short Circuit	When the load is overloaded or short-circuited, the load will automatically restore output five times, respectively, delaying 5S, 10S, 15S, 20S, and 25S.
System voltage error*	Lithium battery low temperature indicator (orange) flashing simultaneously	The controller will resume when the battery temperature declines to 50°C or below.

10. Disclaimer

This warranty does not apply to the following conditions:

Damage from improper use or use in an unsuitable environment.
PV or load current, voltage, or power exceeds the rated value of the controller.
The actual working temperature exceeds the limited working environment temperature.
The user disassembly or attempted to repair the controller without permission.
The controller is damaged due to natural elements such as lightning.
The controller is damaged during transportation and shipment.

	EPEVER Tracer-CPN MPPT Solar Charge Controller Manual Comprehensive user manual for the EPEVER Tracer-CPN MPPT Solar Charge Controller. Covers features, specifications, wiring, protection, troubleshooting, and technical details for efficient solar energy management.
	EPEVER Tracer-BP Series MPPT Solar Charge Controller Datasheet The EPEVER Tracer BP series solar charge controller utilizes advanced Maximum Power Point Tracking (MPPT) charging methods to optimize system charging and discharging management. This technology enhances system flexibility and reduces overall system cost. The controller supports various battery types, including sealed, gel, flooded, and lithium batteries. Users can easily view and modify working status and parameters. It is widely applicable in solar home systems, traffic signals, solar street lights, and garden lamps. Features include high-quality components, wide operating temperature range, lithium battery self-activating/low-temperature protection, 98% conversion efficiency, 99% tracking efficiency, multi-power point tracking, PV power limitation, mobile APP/PC monitoring via RS485, Modbus protocol, IoT/Cloud Server connectivity, RS485 power supply, aluminum housing, real-time energy statistics, and IP68 waterproof rating. Includes comprehensive electronic protections.
	EPEVER Tracer-AN (10~40A) Troubleshooting Guide A comprehensive troubleshooting guide for the EPEVER Tracer-AN series solar charge controllers (10-40A), covering common faults, connection issues, and component testing.
	EPEVER Tracer-BPL Series MPPT Solar Charge Controller Datasheet Technical specifications and features of the EPEVER Tracer-BPL Series MPPT solar charge controller, combining solar charging and LED constant current driving for solar lighting applications.
	EPEVER XTRA-N G3 Advanced MPPT Charge Controller Detailed information on the EPEVER XTRA-N G3 Advanced MPPT Charge Controller, including features, naming conventions, setup guide, and accessories for solar off-grid systems.
	EPEVER Tracer BP Series MPPT Solar Charge Controller Manual Comprehensive manual for the EPEVER Tracer BP series MPPT solar charge controller, covering safety information, overview, product features, wiring, LED indicators, load working modes, protection, troubleshooting, and technical specifications.
	EPEVER Tracer BP MPPT Solar Charge Controller User Manual & Technical Specifications Explore the EPEVER Tracer BP MPPT Solar Charge Controller user manual, featuring advanced Maximum Power Point Tracking technology for efficient solar charging. Learn about its features, wiring, LED indicators, load working modes, comprehensive protection mechanisms, troubleshooting, and detailed technical specifications for various battery types including sealed, gel, flooded, and lithium batteries. Ideal for solar home systems, traffic signals, solar street lights, and garden lamps.
	EPEVER BLE RJ45 A Bluetooth Adapter User Manual User manual for the EPEVER BLE RJ45 A Bluetooth adapter, detailing its features, specifications, connection process, and troubleshooting for EPEVER solar controllers, inverters, and inverter/chargers. Learn about wireless monitoring and data collection via the EPEVER Pair APP.