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Operation
72
Validation of Control Parameters Setup
1. Once the Control Panel has successfully booted up, the Control Panel will display the Main
Screen (see Figure 55).
2. Verify the Control Parameters values are correct. (Consult Table 9 and the relevant UPS
Interconnection Kit Handbook for choosing the proper Control Parameters values).
3. Adjust the Control Parameters values if necessary (see 6.4.1 - Screen Tree Menu Functions).
for instruction on how to change the values of the Control Parameters) then press “F6 DONE”.
Initiating Liebert FS Startup Sequence
1. Once sufficient DC voltage is applied to the UPS DC Bus, the Liebert FS will be able to transition
from the OFF Mode to Startup Mode, unless system was previously Shutdown by command.
The following action is conditional on the UPS interconnection kit that has been installed on your
Liebert FS:
• Standard UPS Interconnection Kit (IKIT-STD)
The Standard UPS interconnection kit (IKIT-STD) includes a fused Power Terminal Block. It is
recommended for maintenance use to have an external disconnect switch installed between the
UPS and the Liebert FS.
Close the customer-provided external disconnect switch at the time indicated by the UPS startup
procedure.
• Optional UPS Interconnection Kit
Open the Liebert FS cabinet front door and close the Liebert FS main circuit-breaker at the time
indicated by the UPS startup procedure. Close the cabinet door.
2. The Control Panel will then show the Main screen (see Figure 55). The System Mode should read
“OFF”. The Liebert FS will actively check for presence of sufficient voltage to allow system
startup.
3. As soon as the UPS DC bus voltage is greater than Vcharge, the System Status will change from
“OFF” to “STAND BY”. The “F1 STARTUP” key will then be enabled.
4. Press the “F1 STARTUP” key.
Liebert FS Startup Sequence
As soon as the “F1 STARTUP” key is pressed, the Liebert FS will launch its startup sequence. This
will progressively lead the Liebert FS through the different Modes of Operation (STAND BY, STAR-
TUP, CHARGE) to eventually reach a ready state of idling (READY Mode) once it is completely
charged up. The automatic transition between modes is described in 5.2 - List of System User-Con-
figurable Parameters.
6.6 Shutdown Procedure
There are two ways the Liebert FS may enter a Shutdown sequence: either a) following a Liebert FS
discharge down to SOC = 0%; or b) following a user-initiated command.
In any Mode, except OFF Mode, the user may command the Liebert FS to transition in SHUTDOWN
Mode by pressing the “F2 SHUTDOWN” key. This action is recommended for normal shutdown of the
system. In this condition, the Liebert FS will not discharge to support an outage. You will be asked to
confirm “Yes” or “No” to SHUTDOWN. Press “Yes” to confirm shutdown and put system in SHUT-
DOWN mode.
For more information concerning the SHUTDOWN Mode, please refer to 5.2 - List of System User-
Configurable Parameters.
NOTE
Startup procedures will vary for each UPS model.
NOTE
Optional UPS interconnection kits include circuit-breakers then referred to as “Liebert FS
Main circuit-breaker”.
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