Multi Dialog MDM
10-20 kVA
MULTI DIALOG provides maximum protection for critical data processing networks and security applications, thanks to its advanced design, selectable operating modes and communications capabilities. Operating
modes include: On-line, Economy, Smart-Active, Standby/Off and Voltage Stabilisation. Standard communications features include a front panel LCD with 128 potential messages, RS232 interfaces, EPO input, communications interface slot and PowerShield³ management software.
The MULTI DIALOG series includes 10-15-20kVA single/single-phase uses double conversion on-line technology (VFI).
The load is powered continuously by the inverter with a filtered, stabilised and regulated sinewave supply. The input and output filters considerably increase the immunity of the load to mains disturbances and surges, even on bypass.
• reliable, filtered, stabilised and regulated sinewave output (double on-line conversion
technology VFI according to EN50091-3 specifications) with filters for atmospheric
disturbance suppression
• high reliability: IGBT technology, full microprocessor control with no-break static and manual bypasses
• 0.8 power factor makes Multi Dialog suitable for powering ICT and industrial loads
• high level diagnostics: event log with 128 messages, states, measurements and alarms - available from the built-in LCD in several languages
• the UPS may be configured with the RS232 serial port (flash upgradable)
• power factor correction with sinusoidal input to ensure a low impact on the mains supply for the single-phase/single-phase series
• reduced noise levels high frequency inverter bridge used (>16 kHz: above audible range)
• Low power consumption up to 92% in On-line mode due to the use of IGBT technology and up to 98% in the other operating modes: "Economy Mode", Smart Active Mode, and Standby/Off Mode:
- Economy Mode: uses Line Interactive (VI) technology to power less critical loads from the mains supply for certain periods. The function can be set from the front panel keypad or remotely using software
- Smart Active: if the mains supply is out of range, the UPS will power the load from the inverter as an On-line UPS. When the mains supply returns to within range again, the UPS will monitor this for a certain period before selecting Line Interactive operation
• Low harmonic pollution in the Multi Dialog CLEAN version the electronic digital (DSP control) active rectifier allows:
- very low distorsion (THDi<5%)
- compact size (no variations on the standard dimensions)
- high reliability (a failure in the active rectifier does not affect the UPS operation)
- high efficiency: the CLEAN rectifier does not reduce the efficiency
• Simple to install:
- capability to connect the UPS both to single-phase and three-phase mains supplies
- panel to offset voltage drop down long cable runs
• Wheels for ease of movement (models 10-30kVA)
• Maximum reliability and power availability - connect up to 8 units in parallel or N+1 redundancy, even of different power ratings
• Power factor correction (input power factor of the UPS, close to 1)
• High level battery reliability:
- automatic battery test
- recharge compensated for temperature
• Emergency operation: the UPS can be set to operate only when the mains fails (for emergency lights)
• Back feed protection: to avoid energy feeding back into the mains supply
• By pass may be deactivated to allow operation as a frequency converter (at 50 or 60Hz)
• Easy to maintain (front access).