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MPPT Solar Charge Controller
Please record the Sigineer Power unit's model and serial number in case you need to provide this
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the unit has been installed.
Order Number:
Model Number:
Serial Number:
User's Manual
For Model #:
Version 2.1 (PN:M48120211116)
Manufacturer Information
Sigineer Power Limited
Email: info@sigineer.com
TEL: +86 769 82817616
US Warehouse: 4415 S 32nd St, Phoenix AZ 85040
M48120
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Summary of Contents for Sigineer Power M48120
- Page 1 US Warehouse: 4415 S 32nd St, Phoenix AZ 85040 Please record the Sigineer Power unit’s model and serial number in case you need to provide this information in the future. It is much easier to record this information now than try to gather it after the unit has been installed.
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Page 2: Important Safety Information
1 Important Safety Information Save This Manual! Read this manual before installation, it contains important safety, installation and operating instructions. Keep it in a safe place for future reference. All wiring must follow the National Electric Code, Provincial or other codes in effect at the time of installation, regardless of suggestions in this manual. -
Page 3: Mechanical Design
2 Introduction 2.1 General Information Thank you for purchasing the M48120 Solar Charger. This MPPT solar controller is an advanced maximum power point tracking solar battery charger. The controller features a smart tracking algorithm that finds and maintains operation at the solar array peak power point, maximizing energy converting efficiency. -
Page 4: Installation
1.LCD Display 2. Warning Indicator 3. Fault indicator 4. Charging Indicator 5. Function Buttons 6. On/Off switch 7. PV1± input 8. PV2± input 9. Battery input 10. Wi-Fi/GPRS Communication 11. BTS Port Communication Ports Port(For RS485/CAN Protocol) 2.3 Features 12V/24V/48V auto work, parallel design Multi-stage charging optimizes battery performance MPPT tracking efficiency >99.5%, peak conversion efficiency 98% Compatible with GEL, AGM flooded, sealed lead acid and lithium battery... -
Page 5: Battery Wiring
Consider the following points before selecting where to install: Do not mount the inverter on flammable construction materials. Mount on a solid surface Install this inverter at eye level in order to allow the LCD display to be read at all times. The ambient temperature should be between 0°... - Page 6 4AWG 5AWG M48100 Copper 3AWG 4AWG M48120 Copper 2AWG 3AWG Lithium Battery Connection If choosing lithium battery for the controller, you are allowed to use the lithium battery only which have configured. There're two connectors on the lithium battery, RJ45 port of BMS and power cable.
- Page 7 Connect the end of RJ45 of battery to the communication port of the controller. The other end of RJ45 insert to battery comm port. Note: If choosing lithium battery, make sure to connect the BMS communication cable between the battery and the controller.
- Page 8 User-Defined 2 Suitable for lithium battery when inverter not communicated with BMS. If “US2” is selected, battery charge voltage and low DC cut-off voltage can be set up in program 05,06 and 07. Lithium Only suitable for lithium battery when inverter communicated with BMS.
- Page 9 CL2, used to communicate through CAN. RS485 Communication Address 1 (default) Address Used to communicate with controller in CL1 or CL2, or used to communicate with upper computer in SIG Communication operation between one inverter and one controller Set parameters on the controller: Program 08 as CL1, Program 09 as Protocol 2. Communication operation between one inverter and two controllers Set parameters on the first controller: Program 08 as CL1, Program 09 as Protocol 2.
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Page 10: Wiring Fault
Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of controller. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage. 48V60/ 48V80/ 48V60-M/ 48V80-M/ MPPT CONTROLLER MODEL 48V100/ 48V120 48V100-M/ 48V120-M Max. - Page 11 Button Description To exit setting mode UP/DOWM To change selection ENTER To confirm the selection in setting mode or enter setting mode LCD Display Icons Icon Function Description System Parameters Information Indicates the battery Indicates the PV input Indicate PV voltage, battery voltage, charging current etc. Configuration Program and Fault Information Indicates the setting programs.
- Page 12 LCD Setting After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP/DOWN” button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to exit. Program Description Setting Option 120A model: Default 60A, 10A~120A Settable Maximum charging...
- Page 13 Backlight on (default) Backlight off Backlight Control Bulk charging voltage 48V mode: default 56.4V, 48.0V~58.4V Settable (C.V voltage) 24V mode: default 28.2V, 24.0V~29.2V Settable 12V mode: default 14.1V, 12.0V~14.6V Settable If “Li” is selected ,it can’t be set up Floating charging 48V mode: default 54.0V, 48.0V~58.4V Settable voltage 24V mode: default 27.0V, 24.0V~29.2V Settable...
- Page 14 Battery equalization If ”Flooded” or ”User-Defined” is selected in program this program can be set up. Battery equalization voltage 48.0V model: default 58.0V,48~60V Settable Battery equalization time Setting range is from 5 min to 900 min. Increment of each click is 1 min. Battery equalization timeout Setting range is from 5 min to 900 min.
- Page 15 LCD Display Information The LCD display information will be switched in turns by pressing “UP/DOWN” key. The selectable information is switched as below order. Setting Information LCD display Charging voltage Battery charging/discharging current Battery charging/discharging power Battery temperature sensor (BTS) For 48V60/48V60-M and 48V80/48V80-M PV input voltage...
- Page 16 For 48V60/48V60-M and PV generated current 48V80/48V80-M For 48V100/48V100-M and 48V120/48V120-M PV generated power Total PV generated energy PV controller temperature Battery SOC=42% Battery level...
- Page 17 Battery Equalization Fault Code Fault Code Fault Event Icon On Fan is locked when controller is off. Over temperature Battery voltage is too high BMS communication loss Can’t communicate with the inverter Warning Code Warning Code Warning Event Icon Flashing Battery voltage is too low PV input voltage is too high Overload...
- Page 18 Equalize charging time and timeout In Equalize stage, the controller will supply power to charge battery as much as possible until battery voltage raises to battery equalization voltage. Then, constant-voltage regulation is applied to maintain battery voltage at the battery equalization voltage. The battery will remain in the Equalize stage until setting battery equalized time is arrived.
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Page 19: Troubleshooting
Trouble Shooting Use the table below to solve minor problems. LCD/ LED/ Problem Explanation What to do Buzzer Battery voltage is too low. Charge the unit at least 8 hours. Battery low When power fails, alarm issue Battery capacity is not full Check the date code of the battery. - Page 20 Specifications MODEL M4860 M4880 M48100 M48120 Solar System Voltage 12V/24V/48V Electrical 15 ~75Vdc@12V 15 ~75Vdc@12V 15 ~75Vdc@12V 15 ~75Vdc@12V PV operating voltage 30~150Vdc@24V 30~150Vdc@24V 30~150Vdc@24V 30~150Vdc@24V 60~245Vdc@48V 60~245Vdc@48V 60~245Vdc@48V 60~245Vdc@48V Max. PV open circuit voltage 250Vdc 250Vdc 250Vdc 250Vdc...
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Page 21: For Future Reference
READ THIS MANUAL BEFORE INSTALLATION, IT CONTAINS IMPORTANT SAFETY, INSTALLATION AND OPERATING INSTRUCTIONS. KEEP IT IN A SAFE PLACE FOR FUTURE REFERENCE. Sigineer Power Limited Email: info@sigineer.com TEL: +86 769 82817616 US Warehouse: 4415 S 32nd St, Phoenix AZ 85040...
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