APW7-12-1800 PSU Series
User Guide

APW7 Performance Properties and Range of Use

APW7 -12-1800 series PSU is a high-efficiency DC PSU with the features of one- phase AC input and one-phase DC 12V output. It can meet the common DC load within 12V 1800W and it is especially suitable for the conditions where the PSU demands are stricter, for example, servers and mining machines. Properties are as follows：

• 100-140V /200-240V Wide voltage input, power factor is > 0.99 (fully loaded)
• Up to 95% efficiency (excluding output current leakage)
• Output ripple <1%.
• Under-voltage, short circuit, over-power and overheat protection with automatic fault detection and recovery, automatic recovery after fault removal.
• High-quality components are selected to ensure the stability and reliability of the PSU and ensure that it can work at fully loaded status in high-temperature environments up to 60 degrees Celsius.
• Small size and high power density.

APW7 Exterior Design Introduction

The type of AC input terminal on the power panel is C14， it must be used with the C13 interface’s AC input cable. The PSU is equipped with an output cable, with each standard output cable containing 10 PCI-E output terminals with a length of 380mm. It is also customizable according to the actual needs of customers. The PCI-E output terminal diagram is shown below：

The output cable consists of two colors: the 12V positive terminal is yellow; the negative terminal is black 6PIN PCI-E Positive and Negative Output Terminals： Positive： Yellow 1, Yellow 2, Yellow 3 Negative： Black 4, Black 5, Black 6

APW7 Specifications：

APW7 Efficiency Curve （Output current leakage is not included.）

APW7 Output Power VS Input Voltage Derating Curve

Precautions for Use：

1. Before using the PSU, please ensure that your local voltage and power outlets are compatible with the requirements of the product. The output voltage from the power socket should meet the product’s voltage requirement. The leading‐out terminal model, polarity, and quantity must also be in accordance with the product requirements stipulated in this guide.
2. Please ensure that the PSU appears to be in good shape and has not suffered any damage in transit. If the exterior of the PSU appears damaged, do not use it.
3. Make sure that the ground electrode of the PSU is properly grounded to ensure electrical safety and EMI reduction.
4. As different countries have different power outputs, we do not supply an AC input cable with our PSUs. Customers should purchase an AC input cable output that is compatible with the local power grid plug. The type number of the cable end interface to be connected with the power panel is C13, and the sectional area of copper conductor for cables should not be less than 1 square millimeter.
5. The PSU must be installed in a dust-free environment with good and unobstructed air circulation. Any items blocking the airflow of the PSU is prohibited and under no circumstances should the PSU be installed in an enclosed place. The installation also should not be done in an environment where there is high condensation or a high level of salt content and humidity in the air.
6. The correct way to use the PSU is to connect the output wire terminal, and then connect the input cable after the load and PSU output terminals are connected. Either connecting or disconnecting the output terminals are forbidden when the PSU is powered on. Voltaic arcs generated by excessive DC can damage DC output terminals and pose a fire hazard.
7. Maintaining a good working environment and derating can greatly prolong the lifespan of PSU. It is generally recommended that the load power not exceed 90% of the rated power of the PSU and the temperature not exceed 50 degrees Celsius. It should be used in a dust-free, non-polluted area where there is low humidity and low salt content in the air. The derating method will also allow the PSU to work at a higher efficiency point, which can help in electricity savings.

Trouble Shooting：

| Issue| Reason| Troubleshooting

---|---|---|---
1| Fan won’t run, and no 12V output.| AC Input is abnormal.| 1. Make sure the AC input wire has a good connection
and the plugs are connected firmly and correctly.
2. Make sure the power system is working well and the voltage is normal.
2| Fan is running, but there is no 12V output.| 1. Voltage is lower than required.
2. PSU is in short circuit protection.| 1. Check if the voltage is above 100V with a multimeter to make sure the PSU is switched on correctly.
2. Check if there is a short circuit output.
3| Intermittent work of PSU| 1. Output overload
2. Input voltage is lower than required
3. Over-heat protection| 1. Check if the load is overloaded.
2. Check if the input voltage is lower than required or if there is insufficient wattage.
3. A.Checkifthefanisworking.
B. Check if the ventilation fan is blocked.
C. Check if there is dust build-up inside the PSU due to prolonged use.
4| Output is normal, but the fan is not working| 1. Fan is blocked.
2. Fan is broken.| 1. Check that the fan is clear of blockages.
2. Fan needs to be replaced.
5| Others| Unknown| Contact customer service if problems persist after troubleshooting.

Regulation:

FCC Notice (FOR FCC CERTIFIED MODELS):
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note:
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

EU WEEE: Disposal of Waste Equipment by Users in Private Households in the European Union
This symbol on the product or on its packaging indicates that this product must not be disposed of with your other household waste. Instead, it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment. The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment. For more information about where you can drop off your waste equipment for recycling, please contact your local city office, your household waste disposal service, or the shop where you purchased the product.

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