Xtreme Power Conversion Corporation
E90 Service Manual
Page 3
Uninterruptible Power Supply
Product introduction
Summary
E90 Series is a kind of high-frequency online intelligent UPS and adopts double DSP control chips, advanced control
technology and double conversion topology. It eliminates various interference of the grid and makes the output
a stable and pure sine wave power with low noise, no interference and low distortion. With strong load capac-
ity, good load compatibility, wide input voltage and frequency range, excellent generator compatibility and zero
transfer time, it greatly meets the requirement of variety of applications. Comprehensive protection enhances the
stability and reliability of the system. Intelligent battery management, equalized and floating charging auto conver-
sion, battery discharge time prediction and battery self-test can extend the battery life. It can be used in advanced
network systems.
- power range:10KVA-20KVA, up to 4 units can be parallel,
- working mode:High frequency intelligent online (3-phase in to 3-phase out)
- application: Work station, network server, and computer rooms and data center
Features
Three-phase UPS
This E90 series is three-phase in to three-phase out UPS with a large capacity, the three phase input current is
balanced which can balance the load of each phase.
Digital control
Digital control is used for all parts of the UPS, which makes the performance indicators very excellent and the
system more stable. It not only has self-protection and fault diagnosis, but also can avoid risks of analog device
failure, which allows the control system more reliable.
Settable charging current
By setting the battery capacity configured by user, the reasonable charging current can be automatically allo-
cated. Constant voltage charging mode, constant current charging mode and floating charging mode can auto-
switch smoothly.
Intelligent charging method
Advanced two-way, three-stage charging method is adopted. At the first stage, fast recharge with constant large
current to 90% capacity; at the second stage, constant voltage charge can activate the battery characteristics and
make the battery full; at the third stage, floating mode operates. This method can provide a balance between the
fast charge and extended the battery life, which saves the battery investment.
LCD display
Both the LCD and LED display for the series allows the users a more intuitive understanding of the UPS status and
operating parameters such as input/output voltage and frequency, load capacity, battery capacity, temperature
and ect.. All the operation are under the monitoring.
Intelligent monitoring function
When the SNMP is selected with UPS, the remote monitoring can be achieved easily.
EPO function
An emergency power off(EPO) button interface Is embedded in the rear panel of the UPS. The user can add the
EPO button. In case of emergency, press the EPO button to shut down the UPS. It also has remote emergency
power off (REPO) function.
