MX28B600-48V

5.6.2 Alarm Outputs

There are eight alarms available that provide outputs via Form “C” relay contacts. The last two of these are pre-assigned as the Minor and Major alarm outputs. The Major relay is energized (NO-C contacts closed) during normal (non-alarm) operating conditions; all the other relays energize when an alarm condition occurs. The other six outputs are initially designated as “Relay 1” through “Relay 6” (the user may assign more meaningful names if desired). The various system alarm conditions can be assigned to any of the eight alarm outputs.

Table 5.6-3 shows the alarm output connection designations. Wago Connectors are located on the interface card mounted in the top left side of the unit. The relay contacts should only be used to switch resistive loads of 0.5 amperes or less at 60 volts or less.

ALARM

TERMINAL

 

OUTPUT

DESIGNATION

USER ALARM NOTES

 

NO-NC-C

 

 

 

 

RELAY #1

NO1-NC1-C1

________________________

RELAY #2

NO2-NC2-C2

________________________

RELAY #3

NO3-NC3-C3

________________________

RELAY #4

NO4-NC4-C4

________________________

RELAY #5

NO5-NC5-C5

________________________

RELAY #6

NO6-NC6-C6

________________________

MINOR

NO7-NC7-C7

________________________

MAJOR

NO8-NC8-C8

________________________

 

 

 

Table 5.6-3. Alarm Output Connections

5.7 Connecting The Loads

5.7.1 DC Circuit Breakers and Fuses

Both plug-in circuit breakers and GMT fuses can be installed in the MX28B600 power plant for DC distribution circuit protection. Two plug-in circuit breaker tiers, consisting of a 24-position panel (breakers labeled 1 to 24) and two 10-position panels (breakers labeled 25 to 34 and 39 to 48), provide 44 positions of -48V distribution. Available plug-in circuit breakers are shown in table 5.7-1. Plug-in circuit breakers rated at 60A or more require two mounting positions and require a breaker adapter kit, which is included (see kit selection information below the table). The breaker adapter kit includes all necessary mounting hardware.

An optional load shed circuit is available. This option will disconnect any unessential loads from the rest of the system. Loads hooked up to the lower left tier (CB 26-35) will be disconnected. This will preserve the battery run time for essential loads. When hooking up the loads, ensure that they are divided correctly.

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American Power Conversion MX28B600 manual Alarm Outputs, Alarm Terminal Output Designation User Alarm Notes NO-NC-C
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MX28B600 specifications

The American Power Conversion (APC) MX28B600 is a top-of-the-line uninterruptible power supply (UPS) designed to provide reliable power protection for a variety of applications. Known for its robust features and advanced technologies, the MX28B600 is an ideal solution for small to medium-sized data centers, telecommunications systems, and other critical IT infrastructure.

One of the standout features of the MX28B600 is its high capacity, which allows it to support a wide range of devices while accommodating future growth. With a power rating of 28 kVA, it can effectively handle multiple servers and network equipment without compromising performance. This capacity ensures business continuity even during power outages, surges, or fluctuations.

The MX28B600 utilizes advanced Double Conversion Online technology, which provides consistent and clean power to connected equipment. This technology ensures that the output voltage is tightly regulated, protecting sensitive electronics from damage and improving overall reliability. Additionally, the UPS features a wide input voltage range, allowing it to function effectively even in unstable power environments.

Another critical characteristic of the MX28B600 is its modular design, which provides flexibility for customization and scalability. Users can easily add or remove modules based on their evolving power requirements, making it a cost-effective solution over time. This modularity also simplifies maintenance and reduces downtime, ensuring that businesses can remain operational without interruptions.

The APC MX28B600 incorporates a user-friendly interface that makes monitoring and managing power needs straightforward. Its LCD display provides real-time information on battery status, output power, and alerts, allowing users to make informed decisions quickly. Additionally, the UPS is equipped with Remote Manager capabilities, enabling remote monitoring and management from any location, which is especially beneficial for IT administrators responsible for multiple sites.

Designed with energy efficiency in mind, the MX28B600 meets stringent environmental standards. Its Eco mode and Intelligent Battery Management system optimize battery life, reduce energy costs, and lower carbon emissions, contributing to a more sustainable operation.

In conclusion, the APC MX28B600 is an exceptional choice for businesses looking for reliable and efficient power protection. With its high capacity, advanced technologies, modular design, and energy-efficient operation, it is poised to meet the demands of modern organizations while ensuring continuous uptime and protecting critical equipment.
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