Marathon Power Athlon SEries, Руководство пользователя

Страница: 5 / 28

1. Overview
For use in the most critical applications, these models are true on-line, double conversion designs
that provide a continuous, true sine-wave output with less than 3% total harmonic distortion
(THD). They allow for a wide input voltage range of +-27% and also feature power factor correction
and dual microprocessors for control of all functions.
Unique features include a ‘cold-start’ function that allows the user to power up the load(s) directly
from the UPS without the presence of utility power, a multi-function LCD display and cooling fans
that vary their speed relative to load size.
Independent input and output fuses and circuit breakers protect against overload and short-
circuits and advanced battery management extends battery life by up to 50%. 2000VA and 3000VA,
120V models also come with hard-wire terminal blocks for permanent installation.
Using the UPS with the included software and interconnecting cable allows intelligent control
of the system when linked to a host computer. (Some operating systems may require the use
of other optional software). In addition to the RS-232 function of the communication port, solid
state signalling and remote control of basic UPS functions is available.
When an overload or malfunction occurs, the UPS automatically and seamlessly transfers to bypass
mode and continues to supply the load with utility power. Upon removal of the fault condition, the
unit automatically transfers back to inverter mode once the unit has been restarted.
Block Diagram
1