ZGR VERSATILE RT - 10 KVA
Manual de operaciones
www.zigor.com
11
3.1.4
ECO Mode
When the UPS is at AC Mode and the requirement to the load is not critical, the UPS can be set at ECO mode in
order to increase the efficiency of the power supplied. At ECO mode, the UPS works at Line-interactive mode, so
the UPS will transfer to bypass supply (Fig. 3-4).
When the AC is out of set window, the UPS will transfer from bypass to Inverter and supplies power from the
battery, and the LCD will show all related information on the screen.
Fig. 3-4 ECO mode
3.1.5
Parallel redundancy mode (system expansion)
To achieve a higher capacity and / or increase reliability, the outputs of up to four UPS modules can be
programmed to operate in parallel. The built-in parallel controller in each UPS ensures automatic load sharing.
Working Mode and transferring
Usually, the UPS should be set to work in AC mode, so it will transfer to battery mode automatically without
interruption when AC fails. When the UPS is overloaded, it will transfer to bypass mode without interruption. When
the inverter is defective or over temperature occurred inside the UPS, the UPS will transfer to bypass mode if the
bypass is normal.
3.2.1
Transfer to bypass if overload
When the load of UPS is beyond normal range and lasts for the time set, it will transfer to bypass mode and beeps
twice every second, and then the load is powered by AC directly. Please decrease the load immediately until the
alarm is eliminated. The UPS will start the inverter after 5 minutes.
In order to protect the load and the UPS, it is required to set the limitation times of transferring to bypass mode
due to overload in 1 hour. If it exceeds the limitation times set, the UPS will keep in bypass mode.
3.2.2
Normal mode to battery mode
The UPS will go to battery mode if the AC is failed. The UPS will shut down automatically if batteries are drained.
When AC recovers, the UPS will start the inverter automatically.
3.2.3
Go to bypass mode due to over temperature
The temperature inside UPS may be high if ambient temperature is high or the ventilation is poor, then the UPS
will go to Bypass mode, fault indicator will be on (red), the LCD will display that the inner temperature is high, long
beeps will come.
If so, please cut off the input power of the UPS, move objects that affecting the ventilation far from the UPS if any
or increase the distance between the UPS and the wall. Wait until the UPS temperature becomes normal then
WARNING
Due to this UPS system is based on 3phase input and 1phase output , in case of failure and bypass transfer,
total load energy will go through phase 1 (A), so the wiring and protections must be sized properly.
