APC UPS control system specs

and means that the default values do not generate annoy messages: KES).

Note that if NOLOGON is set to disable the annoy messages will also be disabled.

ANNOYDELAY <time in seconds> Specify delay time in seconds before apcupsd begins requesting logged in users to get oﬀ the system during a power failure. This timer starts only after the UPS is running on batteries. This timer is reset when the power returns. The default is 60 seconds. Thus, the ﬁrst warning to log oﬀ the system occurs after 60 seconds on batteries, assuming that NOLOGON is not set to disable.

NOLOGON <speciﬁes when apcupsd should prevent user logins> [ disable — timeout — percent — minutes — always ] are valid types.

The type speciﬁed allows you deﬁne the point when apcupsd will create the /etc/nologin ﬁle and thus when user logins are prohibited. Once the /etc/nologin ﬁle is created, normal users are prevented from log- ging in. Control of when this ﬁle is created is important for allowing systems with big UPSes to run as normally until the system adminis- trator determines the need for preventing user logins. The feature also allows the system administrator to hold the “ANNOY” factor until the /etc/nologin ﬁle is created. The default is always if no NOLOGON directive is speciﬁed.

As far as I can tell, the only useful types are disable and always since the diﬀerence in the time when the logout warning is given and shut- down occurs for the other types is very short (KES).

disable prevents apcupsd from creating the nologin ﬁle. Conse- quently, any user can login during a power failure condition. Also, the ANNOY feature is disabled so users will not be warned to lo- goﬀ the system.

timeout speciﬁes that apcupsd should prohibit logins after the UPS is on batteries for 90% of the time speciﬁed on the TIMEOUT conﬁguration directive. Note! Normally you don’t want to specify a TIMEOUT value, so this option is probably not too useful (KES).

percent speciﬁes that apcupsd should prohibit logins when the re- maining battery charge percentage reaches 110% or less than the value speciﬁed on the BATTERYLEVEL conﬁguration direc- tive. Thus if the BATTERYLEVEL is speciﬁed as 15, apcupsd will prohibit logins when the battery charge drops below 16% (15% X 110% = 16%).

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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.

APC UPS control system manual

Models: UPS control system

UPS control system specifications