Dale Power Solutions Ltd
User Manual
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7
System block diagram
A functional block diagram representing the UPS is shown in Figure 1. Power is delivered to the output
via one of these three paths; a) via the bypass, b) directly through the AC/DC converter and inverter, or c)
from the battery via the DC/DC converter and inverter. In normal operation you can choose either path a)
or b).
In cases where it is not possible to meet the required hold up time with an internal battery, an E suffix unit
with an external battery in place of the internal battery can be used.
Figure 1 Single unit block diagram
Features
■ E200 series units have an intelligent online sine-wave output with power factor correction. High
frequency double-conversion and a wide input voltage range ensure continuous output for areas with
poor power supply regulation.
■ DSP technology for digital control ensures high reliability, circuit protection and self-diagnostics in the
unlikely event of a fault. Intelligent digital battery management extends battery life and ensures
optimum performance.
■ An LCD panel and LED indicators clearly display the system status and system parameters such as
input/output voltage, frequency, load, and unit temperature.
■ Network power management can be achieved using UPS monitoring software via an RS232 serial
connection or a USB connection.
■ Optional SNMP or dry contact relay cards are available (either card may be fitted, but not both
together).
■ If required, in-line network surge protection is available via RJ45 connectors on the rear panel.
