Transferring From Normal (Inverter) To Bypass Mode - Vertiv Liebert EXS Installer/User Manual

4.3 Transferring from Normal (Inverter) to Bypass Mode

NOTE: When the UPS is in Bypass mode, the load is not protected. It is powered directly by utility
power.
To transfer to the internal bypass/turn-off when the UPS is in Normal mode:
Press and hold the power button for 2 seconds.
• If the bypass power is within normal operating range, the option to turn-off the local inverter
displays, see Figure 4.4 below. Confirming this selection initiates a transfer to internal bypass
operation.
a. Use the up/down arrows to select no or yes, or press the ESC to cancel.
b. Press Enter to confirm the action.
c. Press Enter again.
• If the bypass power is outside normal operating range, the option to shut-down output
displays, see Figure 4.5 below.
a. Use the up/down arrows to select no or yes, or press the ESC to cancel.
b. Press Enter to confirm the action.
Figure 4.4 Turn off inv—Bypass power in normal range
Figure 4.5 Output shutdown—Bypass power outside normal range
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Vertiv | Liebert® EXS™ Installer/User Guide