EA-UPS DSP Multipower 1 kVA - 10 kVA

General The EA-DSPMP series provides an uninterruptible power source for critical equipment to cover failures in the mains supply. The units can protect connected systems against power failure, undervoltage, overvoltage, frequency variance and harmonic distortion.

Functional principle

The units work with the double conversion principle in the voltage and frequency independent category (VFI). Input power passes directly through a converter which feeds the battery. Output is provided exclusively from an inverter which is supplied either from the converter using mains power, or from the battery in case of mains failure. Security of supply is increased by provision of bypass switching, parallel to the converter and inverter.

Protection functions If output load exceeds 150% or an internal error in the converter or inverter occurs the connected equipment is switched over to bypass so that power supply is maintained. When normal conditions return, conversion operation is automatically resumed. The units are short-circuit-proof.

Interfaces

Communication ports for RS232 and USB (1-3 kVA models) or only RS232 (6-10 kVA models) are provided as standard. A pluggable SNMP interface card, as well as a dry contact board are op- tional. One or two(1 slots for these interfaces are available at the rear of the enclosure such that a retroactive insertion is possible.

Accessories

The standard autonomy time can be extended by various configurations of external battery units. In order to shorten the also extended recharging time when using external battery units, additional charging units with 200 W (for models 1-3 kVA) or 1000 W (for models 6-10 kVA) power are available.

For maintenance purposes, to bypass the UPS unit for replacement of the unit itself or internal batteries, an external bypass switch can be installed separately for the UPS system.