Internal Circuit Configuration - Ablerex ARES PLUS-ECO 1K User Manual

line, and the machine line and the temperature detection line is not more than 3m, otherwise it may need
to take installation restrictions or additional measures to suppress interference.

2.4 Internal circuit configuration

The present UPS product is a typical double conversion ONLINE UPS with internal bypass, as shown
in below figure, a push-button AC circuit breaker at the front end is used for over current protection, and then
an input EMI filter for filtering out noise interference. AC power pass through EMI is fed to a PFC rectifier and
convert to stable high voltage DC power and supply to the DC link. At the output of the DC link, a DC/AC
Inverter converts the high voltage DC power to clean and stable AC power for protecting the mission critical
loading. Another branch of AC power is converted to low voltage DC power to recharge the battery. The
battery powers the DC link and inverter through the DC/DC battery boosting converter in case AC mains is
abnormal. During transient between AC input power and battery power, the output is sustained and smoothed
by the DC link, which result in true zero interruption on AC output end. An internal automatic bypass provides
a backup power supply in case overload or other unexpected abnormal situation occurs to the UPS.
Input
Utility
Circuit
Mains
Breaker
External Battery
Battery connector
Module
Inside the UPS, input Neutral is not bonded with PE, and grounding subject to input power distributing
system, the product compatible with TN, IT, TT power distributing system, with Line, Neutral and PE of
100/110/120/125V 50/60Hz nominal voltage.
The AC or battery power are connected to the UPS via the dedicated port, correct wiring is essential
for the UPS function normally, detailed information about wiring can be found in later sections.
AC/DC
Input
Rectifier with
EMI Filter
PFC
With SPD
Battery
Charger
Internal circuit configuration of present UPS product
DC - Link
DC/AC
Inverter
Output
DC/DC
Battery
Boosting
Converter
Internal
Battery
13
Output
EMI Filter
AC
Switch
AC Power
Supply to
loading