East EA990 Super, Руководство пользователя, Страница: 69 / 92

User Manual 200 kVA-1200 kVA UPS 5 Operation
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Fig. 5-5 Manually switch to bypass
After completing the operation steps, check the energy flow diagram on the main page. When the energy flow
diagram is shown in Fig. 5-6, the UPS successfully enters the bypass power supply mode.
Fig. 5-6 Bypass mode
5.2.2 Manually Close Bypass
The bypass is manually closed as described below:
Step 1 : Manually close the bypass
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 the monitoring display unit, and click [Off] on "Manual to bypass".
After completing the operation steps, check the energy flow diagram on the main page. When the energy flow
diagram is shown in Fig. 5-3, that is, UPS successfully switches from the bypass mode to the mains mode.
5.3 Turn Off the UPS
CAUTION

When selecting "Shut to bypass", if the system bypass is normal and the UPS inverter is
turned off, the system will enter the bypass power supply mode; If the system bypass is
abnormal, the system enters non-output mode after the inverter shuts down, and the system
outputs is disconnected.

When selecting "Shutdown", the system enters non-output mode after the inverter shuts
down, and the system outputs is disconnected.

Before shutdown, make sure that the user's equipment (i.e., UPS load) has been turned off or
can withstand power failure condition at any time.