4.5.Controls and Indicators

Controller Module

All status monitoring and/or parameter changes are made using a computer connected to the Magnum VS system over an (10/100 Base-T) Ethernet network or directly connected via a serial cable. Refer to Section 5 for additional information.

There are five visual indicators (LEDs) on the Controller Module. The Major LED (Red) is on when the Major Relay is de-energized. The Major Relay is energized when there is no alarm. This will produce a major relay output even when all power is lost. The Minor LED (Yellow) is on when the Minor Relay is energized. The Out Relay LED (Yellow) is on when the Out Relay is energized. The DC OK LED (Green) is on when the voltage is between 50 and 57 Vdc. The green LED behind the front panel is slowly flashing when the controller is processing data.

4.6.Alarm Outputs (Output Relays)

There are three alarm output relays designated Out Relay 1, Minor, and Major. Various system parameters may be programmed to activate any of these output relays when set thresholds are exceeded or specific conditions occur. Out Relay 1 can also be routed or “mapped” to “Out Relay 1-6,” “Minor Relay,” “Major Relay” or “Ignore.” This feature makes it possible for a single alarm condition to activate multiple alarm output relays including the Minor or Major alarm relay. For information on making wiring connections to the alarm output relays refer to Section 2.9

In addition to the output relays described above there are 5 outputs that do not support actual hardware. These are called Output Relay 2 through 6. While the relay hardware is not available, the programming can still be used to provide more detailed information through the network management card. Using the actual relay 1 and the 5 virtual relays 2-6, six different parameters can be alarmed with unique messages through the network management card. Various system parameters may be programmed to activate any of these output relays when set thresholds are exceeded or specific conditions occur. Relay 2-6 can also be routed or “mapped” to “Out Relay 1-6,” “Minor Relay,” “Major Relay” or “Ignore.”

Out Relay 1-6 can be renamed using the Relay Alias setup screen. Each relay name can be up to sixteen characters in length. This name will appear in the messages generated by the network management card. This can be used to give specific information on the exact nature of the active alarm.

4.7.External Alarm Inputs (User Input)

The Controller can monitor any external device that uses a voltage free (“dry contact”) switch or relay to output status information. The four external user inputs can be routed or “mapped” to alarm output relays. Available assignments are “Ignore”, “Major”, “Minor”, and “Out Relay 1.” For information on wiring connections to these inputs refer to Section 2.9

4.8.Network Management Card - Local & Remote Monitoring

The Magnum VS controller includes an APC AP9617 Network Management Card which allows both local and remote access to the power system. The AP9617 is a web-based management product that uses multiple, open standards such as Telnet, HTTP, and SNMP to provide full management of supported devices. The following is a list of some of this Management Card’s features:

-Provides a Data Log accessible by FTP or a Web browser.

-Provides an Event Log accessible by Telnet, FTP, or a Web browser

-Detects connection speed of 10/100 MB per second.

-Generates Email notifications for DC Power Plant events and system events.

-Limits SNMP traps and Email notifications based on the severity level of the DC Power Plant or system events

The Management Card has two internal interfaces (control console and Web interface) which provide menus with options that allow you to manage the DC Power Plant and the Management Card. The Management Card’s SNMP interface also allows you to use an SNMP browser with the PowerNet® Management Information Base (MIB) to manage the DC Power Plant.

Magnum VS –48 Vdc User Manual

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American Power Conversion VS 50 Controls and Indicators, Alarm Outputs Output Relays, External Alarm Inputs User Input
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VS 50, VS 100 specifications

American Power Conversion (APC), a brand under Schneider Electric, is renowned for its uninterruptible power supplies (UPS) and provides a range of solutions for both commercial and personal use. Among their various product lines, the APC Smart-UPS 1000VA (VS 1000) and Smart-UPS 500VA (VS 500) stand out due to their features, technologies, and specifications tailored to different operational needs.

The APC Smart-UPS 1000VA is designed for advanced power protection, capable of supporting servers, network equipment, and more demanding applications. It features a pure sine wave output, which is critical for sensitive electronics, ensuring devices receive a stable and clean power source even during outages. The VS 1000 is equipped with an extensive battery backup, offering up to 9 minutes of runtime at full load.

A notable technology employed in the Smart-UPS 1000 is the Automatic Voltage Regulation (AVR), which maintains output voltage stability by adjusting boost and trim in situations of under or over voltage. The unit has an LCD interface, providing real-time data regarding load capacity, runtime, and battery health, enabling users to easily monitor and manage performance. Additionally, with its compact design, the VS 1000 can fit into various settings, maximizing space efficiency.

In contrast, the APC Smart-UPS 500VA targets smaller operations, offering a more compact solution for basic power protection needs. Like its larger counterpart, it also provides pure sine wave output, ensuring the safe operation of connected equipment. The VS 500 is designed for less intensive applications, making it suitable for desktop computers, network devices, and home office setups.

The 500VA model supports shorter runtimes, typically around 3 to 6 minutes under full load but is ideal for situations where downtime needs to be minimized. The Smart-UPS 500VA features similar Automatic Voltage Regulation technology, maintaining voltage stability under fluctuating conditions. However, it comes with a more straightforward LCD display, providing essential information on power status and battery levels without overwhelming the user.

In summary, the APC Smart-UPS 1000VA and 500VA cater to different user requirements, with the VS 1000 offering robust features for larger setups and the VS 500 serving as a versatile option for home or small office use. Both models integrate essential technologies such as pure sine wave output and AVR, showcasing APC’s commitment to high-quality power solutions. Whether for commercial or personal use, these units demonstrate APC's ability to provide reliable power protection tailored to diverse needs.
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