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HSTP3T 60-500 KE User Manual
Chapter 1 Product Introduction
Rectifier
AC/DC
Main
Static Bypass
Manual Bypass
Inverter
DC/AC
Charge/
Discharge
Output
Battery
Bypass
Fig.1-5 Bypass mode operation diagram
1.3.4 Maintenance Mode (Manual Bypass)
A manual bypass switch is available to ensure continuity of supply to the critical load
when the UPS becomes unavailable e.g. during a maintenance procedure. (See Fig.1-6).
Rectifier
AC/DC
Main
Static Bypass
Manual Bypass
Inverter
DC/AC
Charge/
Discharge
Output
Battery
Bypass
Fig.1-6 Maintenance mode operation diagram
Danger
During Maintenance mode, dangerous voltages are present on the terminal of input,
output and neutral, even with all the modules and the LCD turned off.
The UPS which without External maintenance switch in Maintenance Mode, dangerous
voltages are present on terminal and internal Copper bar.
1.3.5 ECO Mode
The economy control operation (ECO) mode is an energy-saving mode, In ECO mode,
when the bypass input voltage is within the ECO voltage range, the static bypass turns on, and
the bypass supplies power, and inverter is standby. When the bypass input voltage is beyond
the ECO voltage range, the UPS transfers from bypass mode to normal mode.
Summary of Contents for HSTP3T100KE
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