User Manual 200 kVA-1200 kVA UPS
5 Operation
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Operation procedures:
Step 1
: Turn off the UPS
If the "Control" on the main menu of the monitoring display unit is gray, unlock it first: chick the password lock
on the upper right corner of the display interface while the system will pop up the unlock window and enter the
password to complete the unlocking.
Select the "Control" from the main menu of monitoring display unit, click "Shut to bypass", and select "Ok" to
complete the operation of UPS shutdown, as shown in Fig. 5-7.
Fig. 5-7 Power off inverter
Step 2:
After the UPS is powered off, if the system bypass is normal, after the inverter is shut down, UPS enters
the bypass power supply mode. If the system bypass is abnormal, after shutdown, the UPS will enter no-output
mode, resulting in load power failure.
Step 3: A
fter the UPS is powered off, disconnect the output switch.
Step 4
: Disconnect the battery pack switch (if there are multiple battery packs, first disconnect the main switch
between the battery pack and the UPS, and then disconnect the switch of each battery pack).
Step 5
: Disconnect the mains input switch and the bypass input switch.
Note:
If it is required only to turn off the UPS inverter and turn the system to bypass power supply, after confirming that
there is no abnormal alarm at present, only perform step 1. If the entire UPS needs to be powered down
completely, complete all mentioned-above steps.
5.4 ECO Operating Mode
CAUTION
In ECO mode, the bypass power supply takes precedence over the inverter power supply.
When the bypass loses power, the system will switch to the inverter power supply
intermittently. The off-time is less than 2ms in typical working conditions and 10ms in bad
working conditions is less than 10ms.ECO mode should not be used when the power grid
fluctuates greatly or the generator is used for power supply.
Select the ECO operating mode.
Operation procedures:
Step 1
: Set ECO as operating mode.
If the "Control" on the main menu of the monitoring display unit is gray, unlock it first: chick the password lock
on the upper right corner of the display interface while the system will pop up the unlock window and enter the
password to complete the unlocking.
In the main menu of the monitoring display unit, click [Settings]→[Advanced]→[Working mode]→[ECO], as
shown in Fig. 5-8.
Summary of Contents for EA990 Super
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