Liebert 610 - Manual (Page 75)

Operation
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3.4 Manual Procedures
The Liebert Series 610 UPS is designed to function while unattended by an operator. Many important
functions are handled automatically by the system control logic, as explained in 3.5 - Automatic
Operations. Other procedures must be performed manually.
Manual procedures available to the operator include Start-Up, Load Transfers and Shutdowns. These
procedures are performed by using the operator control panel and some manually operated circuit
breakers and switches.
The LCD includes a screen to help you with each manual procedure by listing each step you must per-
form.
This section lists step-by-step controls to operate and conditions to observe in the following manual
procedures:
1. Start-Up: including initial start-up, recovering from input power failure, recovering from battery
shutdown and recovering from shutdowns for emergencies or maintenance procedures.
2. Load Transfers: including transfers from UPS system to bypass and retransfers from bypass to
the UPS system.
3. Shutdowns: including module shutdowns for maintenance procedures and emergency
shutdowns.
3.4.1 Start-Up Procedure
When the UPS module has been shut down for any reason, use this procedure to start-up the UPS
system. This procedure gives step-by-step instructions for controls to operate and conditions to
observe. Your present situation could be initial startup or recovering from input power failure, bat-
tery shutdown, maintenance shutdown or an emergency shutdown.
If your installation includes a Maintenance Bypass, you may already be supplying power to the criti-
cal load equipment through the Maintenance Bypass. If there is no power to the critical load, apply
power through the UPS bypass line per the following procedure.
During a start-up procedure, power is supplied to the critical load through the UPS (internal) bypass
line while the UPS system is being energized. Depending on the reason for your UPS system shut-
down, you may already have power through the bypass line. You can determine this by observing the
Monitor/Mimic Display screen after Control Power is available.
NOTE
The following procedure assumes that the UPS installation inspection and initial start-up
have been performed by Liebert Global Services. A Liebert-authorized representative must
perform the initial system start-up to ensure proper system operation.
!
CAUTION
The following procedure provides power to the critical load distribution system. Verify that
the critical load distribution is ready to accept power. Make sure that personnel and
equipment are ready for the critical load distribution system to be energized.