Response To An Incorrect Start-Up Sequence - Liebert 300 series Installation, Operaton & Maintenance Manual

3.6.3 Response to an Incorrect
Start-up Sequence
STARTUP SEQUENCE
ABORTED
Check Messages
CAUTION
Start-up must be performed exactly as
instructed. Follow prompts on the
Advisory Display. Turning the Rotary
Switch too soon or in the wrong
sequence may result in immediate loss of
power to the critical load.
1. If Rotary Switch is advanced through start-
up before the appropriate system prompts,
the following message is displayed:
WARNING: Load
on Maintenance
bypass
Check Messages
2. Press the Down selection pad (as prompted
by the flashing arrow in the lower right-
hand comer) to view the following message:
Rotary Switch
improperly
operated
3-16 Installation. Opeatlon and
3.
WARNING
a
I
4. From Position 1, repeat start-up sequence
a
If repeated start-up attempts are unsuccessful,
call Liebert Customer Service and Support at
l-800-543-2378.
Maintenance Manual (8196)
Position 1. Do not turn rotary switch to
Position 0. Doing so will cause an immediate
loss of power to the load.
CRITICAL LOAD IS CONNECTED TO
THE MAINTENANCE BYPASS LINE AS
SOON AS THE ROTARY SWITCH IS
TURNED FROM POSITION 4 TO
POSITION 3. HOWEVBR, POWER
REMAINS IN THE UPS, AND IS UNSAFE
FOR MAINTENANCE UNTIL THE
ROTARY SWITCH IS IN POSITION 1. IN
POSITION 1, UPS COMPONENTS ARE
DE-ENERGIZED WITH
OF EMI CAPACITORS, ROTARY
SWITCH, INPUT/OUTPUT TERMINALS,
BATTERY CABINET, AND THE INPUT
TRANSFORMER. ALL INPUT POWER
MUST BE REMOVED TO ACHIEVE
COMPLETE ISOLATION.
beginning with Step 3, obsetig the pace
set by the Advisory Display and screen
messages.
THE EXCEPTION