CYLINDER 8U1985 - Caterpillar

UPS Isolation for a Parallel UPS Without External Bypass Cabinet
To shut down and isolate the first UPS in the system, follow the instructions below:
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Check that the two UPS systems are operating.
Press any button to exit sleep mode.Note: If there is nothing displayed on the screen, the display may have entered sleep mode. Sleep mode is activated after a period of nonuse to lengthen the service life of the display.
Shut down the UPS by pressing the OFF button (46) for 3 seconds.
Set output switch "Q5N" (11) to the OFF position.
Set the battery circuit breakers of the auxiliary cabinets to the OFF position.
Set the input switch "Q1" (8) to the OFF position.
Set the switch "Q4S" (9) to the OFF position.
Wait until the display and LED lights go off.The