6KVA DI Series LF Online Transformer Based UPS External Battery Type
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6KVA DI Series LF Online Transformer Based UPS External Battery Type

Full DSP Controlled Heavy Duty UPS

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Full DSP Controlled Heavy Duty UPS

1. System Introduction

This UPS is a full-digitized with European Cortex-M3 MCU (STM32F103RCT6 )controlled single phase input/single phase output or 3 phase input/single phase output online UPS. It provides reliable, stable, and constant AC power for computer equipment, telecommunication devices, precision equipment/instrument, and network termination equipment (NTE). UPS systems protects all  these devices from losing data or information due to power outage, interruption or disruption to truly and comprehensively solve  power issues, such as power outage, power surge, voltage sags, temporary over-voltage, temporary under voltage, frequency offset,  power disturbances, switching transients, and harmonic wave distortion.

2. System Features

2.1 High Performance Index

◆ Advanced SCR Rectifier and IGBT Inverter Technology. Online 1/1 or 3/1 double conversion structure.

◆ Adapt with output isolated transformer technology to fit 200、220、230、240Vac,50/60Hz Grid Systems;

◆ Wide Input Range from Single Phase 160-280Vac、3 Phase 286-475Vac ,50/60 Hz±5%,High Adaptive Capacity to Mains Grid.

◆ High Overload Ability -- surge current protection technology to carry sudden impact for 0% to 100% load immediately without transfer to bypass;

◆ Overall Efficiency 85%. 98% under ECO Mode;

◆ Full-Digitized Non-master slave parallel redundancy technology. Parallel circumfluence ≤5%;

◆ Intelligent Charging Design. It equips with BAT low/over charged sensor to protect the charger. Real-time diagnosis on Battery status and response data simultaneously;

◆ Large Color Dot-matrix LCD+LED Screen with multi-functional keyboard to check system parameters, such as fault histories, operational statuses self-diagnosis periodically discharge settings, etc.

◆ Battery Self-testing can be done on the LCD directly. Battery Capacity, UPS working mode (Online or ECO) can be set on the screen. All history faults and statistics can be seen on the screen to help user analyze the working summary of the UPS.

◆ Monitoring can be done by WAN/LAN SNMP adapter or Cloud Monitoring Adapter. UPS equips with RS232, USB, EPO ports, and can choose RS485 and Dry-contact as optional accessories.

◆ Front to Rear Ventilation Design to reduce the defective rate of the product.

◆ Smart Size.

2.2 Safe and Reliable

◆ MCU control to operate all power conversion sessions during the operations, which has higher system reliability than traditional UPS systems.

◆ Output Isolated Transformer Built-in. It can reduce impacts and interferences from Load Harmonic Wave Current and N-Wire Voltage.

◆ Special Design on battery connectors to save the shock hazards from mis-operation;

◆ 90% of system components are from international brands. All devices has been aged and fully tested for at least 24 hours before leaving the factory.

3. Rich Optional Accessories

DI Series UPS can use SNMP Network Adapter, RS485/Dry Contact, USB port, and EPO function to build up a remote control and monitoring system.

4. Application Type

DI Series UPS is designed for small and medium important equipment systems, such as small and medium commercial network equipment, small data center, important medical equipment, manufacturing process control system and communication equipment.

5. Technology Points

◆ MCU control provides higher system reliability than traditional UPS systems.

◆ Wide Input Voltage and Frequency Range.;

◆ Non-Master Slave digital parallel redundancy feature;

◆ Advanced Battery Management system;

◆ High Overload Ability;

◆ Dot Matrix Color Screen for friendly and intuitive display;

◆ Online Double Conversion technology with output isolated transformer

◆ Smart Size compared to the same size of the UPS in the market. All UPS equipped with wheels. 



Host Machine Specification

UPS Structure
Online Low Frequency Transformer Based Double Conversion
Output Isolation Transformer
Overall Efficiency (AC - AC)
Noise (In 2 meters)
Working Temperature
-10 to 40℃
Storage Temperature
-25 to 60℃ (Without Battery)
<95% Non-Condensing
Safety Standard
IEC 62040
Parallel Redundancy
Overload, Short-Circuit, Over Temp., Utility Power Voltage High/low, BAT Voltage High/low
DC Start
Generator Compatibility
LCD Display: Multi-Language with all kinds of messages. Input Output Status, ECO Mode Settings, INV. Temp. TX Status Calendar, Time, Serial Number, Model, Structure, History Logs, Battery Test.

LED Indicators: UPS States Indicator
Cabinet Standard
IP 20
Cooling System
Intelligent Speed Control Cooling Fan
<1000M, Without Derated

Rectifier Specification

Input Voltage
220/200/230/240Vac Single Phase
Input Voltage Range
Input Frequency Range
50 ± Hz 5%
> 20 Seconds

Output Specification

Output Voltage
Output PF
Output Voltage Regulation
220 Vac ± 1% (Static Full Load), 220 Vac ± 2% (50-0% Sudden Change)
Output Frequency
50Hz±0.1% (BAT Mode)
< 1%(Linear Full Load),< 3%(Non-Linear Full Load)
Frequency Tracking Range
Output Waveform
Pure Sine Wave
> 125%: More than 10 Min;
> 150%: More than 1 min
Noise Suppression
EMI/RFI Wave Filter
Crest Ratio
Circuit Auto Protection,Output Voltage/Current 0
Output Abnormal
INV. Output Auto-Locked Protection

Bypass Specification

Static Bypass Transfer Time
0 ms
Static Bypass Range
Frequency Range
±1Hz, ±2Hz, ±3Hz Adjustable
Bypass -> INV Transfer Time
Frequency Tracking Speed
Manual Maintenance Bypass

Alarm Specification

Utility Power Fault, BAT Voltage Low, Overload,UPS Fault

Battery Specification

Sealed Lead Acid Maintenance Free
Model Rated Volts/Units
96Vdc /8 Units or 192Vdc /16 units
Std.Model Charging Current
7A/14A (96Vdc) or 5A (192Vdc)
BAT Low Protection
Shutdown Protection

Communication Specification

Communication Port
Rs232 (Std.);/SNMP/RS485/ Dry Contact (Optional Accessory)
Remote Software
Multi-functional Monitoring System, Online and BAT Mode Status, BAT Fault, Remote Control

Physical Parameters

Std. Size mm(W×D×H)
Std. Net Weight Kg