Clary CMN4000 - 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-High Temperature
CMN Series Continuous Power System (CPS)
is a revolutionary new concept in total power
protection and management. The CMN
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 RS232 port, frequency settings and operation,
alarm signals, load switching, etc. can all be
programmed to meet specific application
requirements.
The CMN SERIES is a true on-line, continuous
power UPS. In the tradition of Clary products, the
CMN 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 micro controllers, 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.
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 until 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 UPS software program, you can
actually view, on your monitor, the event history of
the power distribution system with the
CMN SERIES unit as the central hub. More
sophisticated users may implement the optional
SNMP package to accomplish full Network Power
Management.
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T
UTILITY
INPUT
INPUT
ISOLATION
TRANSFORMER
BYPASS LINE
EMERGENCY
CUTOFF
SWITCH
VOLTAGE
WINDOW
DETECTOR
COMMON
MODE
CHOKE
RECTIFIER
CHARGER
POWER
FACTOR
CORRECTOR
+ DC
RAILS
MICROPROCESSOR
CONTROLLER
AC
INVERTER
GENERATOR
LOAD
STANDBY
BATTERY
COMMON
MODE
CHOKE
DB-9
CONTACTS
DB-9
RS232