Clary GT Series - Manual (Page 4)

T H E C O N T I N U O U S P O W E R C O M P A N Y
Page 4
TECHNICAL DESCRIPTION
he Digital Technology (GT) Series Continuous
Power System (CPS) is a revolutionary new
concept in total power protection and
management. The GT Series is a
microprocessor-based UPS that now allows the user
to set most of the control feature parameters. By
directly linking a personal computer to the GT Series
RS232 port, frequency settings and operation, alarm
signals, load switching, fan operation, etc. can all be
programmed to meet specific application
requirements.
The GT Series is a true on-line, continuous power
UPS. In the tradition of Clary products, the GT
Series generates the same high quality and proven
reliability to provide the best power protection
available for today’s critical applications.
In keeping with state-of-the-art design, the power
electronics are completely governed by an on-board
microprocessor. Given the powerful memory
capability of today’s microcontrollers, this
microprocessor has evolved the UPS into an all-in-
one complete power distribution and monitoring
center. Not only is your critical load insured of the
most reliable and constant power available, but the
user may now continuously track status of the
supply components that keep the entire system
operational. Production downtime can now be
virtually eliminated by knowing exactly what patterns
the supply utility power maintains and by knowing
exactly the condition and life expectancy of the
battery reserve.
Reference the block diagram for a simplified
explanation of the system’s operation. The AC utility
source is connected to the power and micro-
electronics when the input switch is closed. The
input line is filtered, power factor corrected and
rectified for enhanced performance without
disturbing other equipment that may share the same
utility circuit. In GT units, a step-down, input
isolation transformer is added to accept a wide
range of input voltages for global applications.
Output transformers, SNMP adapters and many
other options are available.
The microprocessor controls an Inverter Generator
that produces a low harmonic, AC sinewave for
continuous power applications.
When the input AC utility line fails, the battery circuit
within this system takes over to ensure continuous
power. Only after properly rated power is returned,
does the microprocessor reconnect the input source
back into the system.
The microprocessor is directly tied to an external
RS232 connector port. This allows the user to
monitor and even set some of the operating
parameters. With a simple link to a personal
computer using the DT-UPS2 software program, you
can actually view, on your monitor, the event history
of the power distribution system with the GT Series
unit as the central hub. More sophisticated users
may implement the optional SNMP package to
accomplish full Network Power Management. T