1.Monitor battery current and verify that it is +/- 0.1 A.

2.Set battery maximum recharge setting by determining the entire battery string capacity and dividing by 10 hours. This setting will recharge the battery in 10 hours.

3.Enter this value in the Max Batt Rech screen.

4.Monitor the battery current while closing the battery disconnects or installing open battery links. Arcing can occur during this connection.

5.The voltage may drop if the maximum battery recharge current is exceeded.

6.The current should gradually decrease when the battery is nearing full charge.

LVD Test

1.Enable the LVDs that are installed.

2.Set the LVD trip for each LVD to negative (-)56 Vdc.

3.The LVD should have dropped out (opened). Verify by monitoring the voltage at the battery connection. Also, the minor alarm should be on.

4.Set LVD Trip back to negative (-)42 Vdc.

5.The LVD should have closed. Verify visually or by monitoring the voltage at the battery connection. The minor alarm should be off.

6.Ensure that the LVD parameters are set to desired value.

Circuit Breaker/ Fuse Test:

1.Monitor alarm screen for fuse alarms while removing and replacing NH2 style fuses in each position.

2.Verify proper voltage at fuse and circuit breaker output connections.

3.Turn on fuses and circuit breakers as desired.

User Inputs

1.Change the user input to desired output relay via the controller for any input that will be used.

2.Exercise the output relay by causing the user input to change state.

3.Verify the desired relay output LED on the controller module.

Output Relay 1:

1.Minor and Major output relays were tested in the rectifier test section.

2.Change the alarm to desired relay output via the controller for any relay output that will be used. All alarm parameters are shipped as either major or minor, but may be changed to output relay 1.

3.Program output relay 1 to desired major or minor alarm to complete programming.

4.Exercise the output relay by causing the alarm to change state.

5.Verify the desired relay output on the controller module.

Battery Temperature Compensation

1.Enable battery temperature compensation if desired.

2.Ensure that battery temperature probe is connected to the system and attached to the battery.

Magnum XS 450 Power System –48 VDC User’s Manual

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American Power Conversion XS 450 -48 user manual LVD Test, Circuit Breaker/ Fuse Test, User Inputs, Output Relay
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XS 450 -48 specifications

The American Power Conversion (APC) XS 450 -48 is a reliable and efficient power supply solution designed for critical applications requiring a consistent and stable power source. This solution is particularly beneficial for telecommunications, data centers, and industrial settings where power reliability is paramount.

One of the key features of the XS 450 -48 is its ability to deliver 450 watts of continuous power, ensuring that connected devices receive uninterrupted power supply. Its 48-volt output makes it ideal for telecom requirements, where 48V systems are standard. The unit provides a compact and space-saving design, making it suitable for installation in rack-mounted configurations, optimizing the utilization of valuable real estate in server rooms or equipment racks.

The XS 450 -48 utilizes advanced technologies that enhance its performance and reliability. It is equipped with an active power factor correction (PFC) system that significantly reduces harmonic distortion. This feature not only improves system efficiency but also complies with various regulations concerning power quality. Additionally, the power supply includes built-in over-voltage protection, over-current protection, and short-circuit protection, ensuring that both the power supply and the connected devices are safeguarded against electrical faults.

The unit is designed for high efficiency, often exceeding 90% under full load conditions. This not only reduces energy costs but also minimizes heat generation, contributing to a quieter operation environment. The XS 450 -48's intelligent thermal management system allows it to operate in a range of temperatures, making it highly versatile and adaptable to varying environmental conditions.

Furthermore, monitoring and management capabilities are integrated into the XS 450 -48 with optional external monitoring systems. These systems provide critical insights, allowing technicians to track real-time performance metrics, detect potential issues early on, and perform preventive maintenance.

In conclusion, the American Power Conversion XS 450 -48 stands out as a robust power supply solution that combines reliable performance, advanced protection features, and high efficiency. Its design caters to the specific needs of telecommunications and data centers, making it an indispensable asset for maintaining the uptime and integrity of critical systems. With its range of features and reliability, the XS 450 -48 continues to be a preferred choice among professionals in the field.
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