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APC UPS control system manual

Models: UPS control system

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commfailure This event is generated each time the communications line with the computer is severed. This event is not detected on dumb signaling UPSes.

Default -does a printf ‘‘Warning serial port communications with UPS lost.’’ wall then exits.

commok After a commfailure event is issued, when the communications to the computer is re-established, this event will be generated.

Default —

does a printf ‘‘Serial communications with UPS

restored.’’

wall then exits.

doreboot This event is depreciated and should not be used.

Default - does a reboot of the system by calling shutdown -h now

doshutdown When the UPS is running on batteries and one of the limits expires (time, run, load), this event is generated to cause the machine to shutdown.

Default does a shutdown of the system by calling shutdown -h now

emergency Does an emergency shutdown of the system by calling shutdown -h now

failing This event is generated when the UPS is running on batteries and the battery power is exhausted. The event following this one will be a shutdown.

Default — does a printf ‘‘UPS battery power exhausted. Doing shutdown.\n’’ wall then exits.

loadlimit This event is generated when the battery charge is below the low limit specified in the apcupsd.conf file.

Default — does a printf ‘‘UPS battery discharge limit reached. Doing shutdown.\n’’ wall then exits. After com- pleting this event, apcupsd will immediately initiate a doshutdown event.

mainsback This event is generated when the mains power returns after a powerout condition. The shutdown event may or may not have been generated depending on the paramaters you have defined and the length of the power outage. A cancel of a shutdown should never be attempted as it is very unlikely to succeed and will almost surely leave your machine in a indeterminate state.

Default — attempts to cancel the shutdown with a shutdown -c (not sure about that!!!!)

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APC UPS control system manual
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UPS control system specifications

APC UPS (Uninterruptible Power Supply) control systems are vital components for ensuring uninterrupted power supply and protecting critical equipment from power interruptions, surges, or fluctuations. Designed by Schneider Electric, APC UPS systems are renowned for their high quality and reliability. They utilize advanced technologies and features to suit diverse applications, from home offices to large industrial settings.

One of the main features of APC UPS systems is the ability to provide backup power during outages. This is achieved through a battery system that activates immediately when the mains power fails. This seamless transition minimizes downtime and ensures that electronic devices continue to operate, protecting data integrity and equipment lifespan.

Another significant characteristic of APC UPS systems is their intelligent management capabilities. Most models come with PowerChute software, which provides users with real-time monitoring of power conditions and the status of the UPS. This software allows for graceful shutdowns of connected devices during extended outages, thereby preventing data loss and damage to devices.

APC UPS systems also incorporate advanced technologies such as Automatic Voltage Regulation (AVR). AVR technology ensures that the output voltage remains stable by correcting minor fluctuations without switching to battery mode. This not only prolongs the battery life but also provides a consistent power supply to the connected equipment.

Thermal management is another critical aspect of APC UPS control systems. The design often includes efficient cooling systems that prevent overheating, ensuring optimal performance and longevity of the unit. Some models feature EcoMode, which reduces energy consumption and lowers operational costs by working at high efficiency only when battery backup is not required.

APC UPS systems are designed with scalability in mind. Users can easily add more batteries or connect additional UPS units to accommodate growing power needs. Features such as hot-swappable batteries and modular design facilitate easy upgrades and servicing without interrupting power supply.

In terms of connectivity, APC UPS products often feature multiple options including USB, RS-232, and network management capabilities. This enables users to connect remote management tools and integrate the UPS with existing IT infrastructure.

In summary, APC UPS control systems deliver reliability, efficiency, and advanced technology features that cater to a wide array of power protection needs, making them a trusted choice for individuals and businesses alike.