Page 4 of 26
Rev. A
1 I ntroduction
EP series is a line interactive power system that has a step wave output. I t prevents impulse,
surge, sag and power outage situations. I t provides the UPS output load with a reliable
source. It has the following functions:
1.1
Boost:
I f the utility voltage drops to line boost activated point*,
the AVR will be activated
and increase the input voltage by 1.18 times of incoming utility voltage.
* Boost activated point
110 VAC
120 VAC
220 VAC
230 VAC
240 VAC
99 VAC
108 VAC
198 VAC
207 VAC
216 VAC
1.2
Buck:
I f the utility voltage reaches to line buck activated point,
the AVR will be activated
and decrease the input voltage by 0.85 times of incoming utility voltage.
* Buck activated point
110 VAC
120 VAC
220 VAC
230 VAC
240 VAC
121 VAC
132VAC
242 VAC
253 VAC
264VAC
1.3
50/ 60Hz Automatic Frequency Selection:
The output frequency will automatically match the input frequency (50 or 60Hz).
1.4
Communication Port ( USB) :
I t provides remote shutdown capability via communication port for connected
computers.
1.5
Data line/ telephone line protection:
The unit provides RJ11 port to provide transient voltage surge suppression
(TVSS) for data line or telephone line.
1.6
Cold start ( DC start) :
The UPS is equipped with DC start function to turn on the UPS without input source.
1.7
Green Pow er Function:
When the load can hardly be detected in battery mode, the UPS will shut down for
energy saving.
This manual contains block diagram, principle of operation, system outline and
troubleshooting.
Содержание EP450 series
Страница 2: ...Page 1 of 26 Rev A UNINTERRUPTIBLE POWER SYSTEM SPECIFICATION EP450 650 850 Series ...
Страница 3: ...Page 2 of 26 Rev A 1 0 Revision Summary REVI SI ON SECTI ON DESCRI PTI ON Rev A Formal Release ...
Страница 9: ...Page 8 of 26 Rev A Figure S 2 Control Power Circuit CH1 C15 å GND Figure W 1 Cold Start ...
Страница 11: ...Page 10 of 26 Rev A Figure S 3 B Charger Control Circuit ...
Страница 15: ...Page 14 of 26 Rev A Figure S 5 I nverter circuit CH1 DS N CH2 Output Voltage 1 200V Figure W 3 Control logic 1 ...
Страница 18: ...Page 17 of 26 Rev A Figure S 6 CPU Control Circuit ...
Страница 26: ...Page 25 of 26 Rev A Figure W 7 Battery Mode Examination Flowchart ...
Страница 27: ...Page 26 of 26 Rev A Figure W 8 Line Mode Examination Flowchart ...