1
1. Introduction
The information provided in this manual covers single phase 1000 – 6000 VA
uninterruptible power systems (UPS). Included i n this manual is information on the
installation, operation, safety precautions, shipping, and storage of the equipment.
Installation must be carried out in accordance with this manual. Electrical installations
must also follow local legislation and regulations. Only qualified personnel should
install this equipment. Failure to comply with the warnings and precaut ions could prove
to be fatal.
2. System Description
The purpose of the UPS is to protect sensitive systems from poor quality utility power,
complete loss of power, or other associated problems. System types include computers,
workstations, process control systems, telecommunications systems, sales terminals, or
other critical instrumentation.
Electrical interference may occur causing problems in AC power. Interference may
come from light ning, the power company, radio transmissions, or motors. Normal
operation of sensitive electrical equipment requires protection against power outages,
low or high voltage levels, frequency variations, differential and common-mo de noises,
and transients.
In order to prevent power line problems from reaching critical systems and causing
damage to software, hardware or causing equipment to malfunction, t he UP S help s b y
maintaining a constant voltage, isolating critical load output, and cleaning the utility AC
power.