SG40CX-P2 - Battery charger Sungrow - Free user manual and instructions
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| Product Type | Battery Charger |
| Brand | Sungrow |
| Model | SG40CX-P2 |
| Input Voltage | AC 380-480V, 3-Phase |
| Output Voltage | DC 48V (Nominal) |
| Output Current | Up to 80A |
| Maximum Power | 4000W |
| Efficiency | >95% |
| Charging Stages | Bulk, Absorption, Float |
| Battery Types | Lead-Acid, Li-ion |
| Protections | Overvoltage, Overcurrent, Short Circuit, Reverse Polarity, Overtemperature |
| Communication | RS485, CAN Bus |
| Display | LCD with Status Indicators |
| Cooling | Forced Air Fan |
| Operating Temperature | -20°C to +50°C |
| Dimensions (W x H x D) | 438 x 133 x 400 mm |
| Weight | 15 kg |
| Enclosure Rating | IP20 |
| Mounting | Rack or Wall Mount |
| Standards Compliance | CE, UL |
| Warranty | 2 Years |
Frequently Asked Questions - SG40CX-P2 Sungrow
What battery types is the SG40CX-P2 compatible with?
The SG40CX-P2 supports lead-acid (flooded, AGM, GEL) and lithium-ion batteries. Always check the battery manufacturer specifications for optimal charging parameters.
How do I set the charging parameters?
Charging parameters can be configured via the LCD display and menu buttons. Use the settings menu to adjust voltage, current, and charging stages according to your battery type.
Can the charger be used in parallel for higher power?
Yes, multiple SG40CX-P2 units can be paralleled to increase total charging current. Ensure proper communication and synchronization via the CAN bus interface.
What protections does the charger have?
The charger includes overvoltage, overcurrent, short circuit, reverse polarity, and overtemperature protection. It also features soft-start to reduce inrush current.
How do I connect the communication cables?
Communication ports are located on the front panel. Use RS485 for monitoring and control, and CAN bus for parallel operation. Refer to the wiring diagram in the manual for pin assignments.
What is the recommended maintenance schedule?
Inspect cooling fans and air filters every 3 months. Clean dust accumulation with a soft brush. Check terminal connections for tightness annually.
Can I charge batteries with different chemistries simultaneously?
No, each charger unit should be configured for a single battery type. Mixing chemistries can cause overcharging or undercharging and damage the batteries.
What does the error code 'E01' mean?
Error code E01 indicates an overvoltage condition. Check the input voltage and ensure it is within the specified range. Also verify that the battery voltage matches the charger output setting.
How do I update the firmware?
Firmware updates are performed via the USB port using a USB drive. Download the latest firmware from the Sungrow website, copy it to the drive, and follow the update procedure in the manual.
Is the charger compatible with solar systems?
Yes, the SG40CX-P2 can be integrated with solar charging systems when used with a compatible charge controller. It works as a secondary charger for grid-tied or off-grid setups.
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USER MANUAL SG40CX-P2 Sungrow
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Product information
Brand : Sungrow
Model : SG40CX-P2
Category : Battery charger