User Manual

32UPS Network Management Card 3 User Guide
PowerChute Shutdown Parameters
Specify the shutdown parameters used by PowerChute Network Shutdown.
Controlled Early Shutdown and End of Shutdown.
These options are not available for all UPS devices. These options are not available for SMT, SMX,
SRC, SURTD, or SRT Smart-UPS models. To control early shutdown of outlet groups for these
models, see “Load-shedding options” on page 28.
The Controlled Early Shutdown options enable you to shut down a UPS device on battery when ANY of the
conditions that you specify are met:
• When the time on battery exceeds a set number of minutes.
• When the runtime remaining of the UPS is less than a set number of minutes. (Runtime is how long the
UPS can use battery power to support its present load).
• When the battery charge is less than a set percentage of its total capacity.
• When the load on the UPS output is less than a set percentage.
With Stay off after power returns, you can also decide whether the UPS turns back on, or not, after AC utility
power is restored.
The End of Shutdown options enable you to set a condition and a delay time for when a UPS can turn back
on after AC utility power is restored. Depending on the UPS model, you can specify a Minimum Battery
Capacity or Min Return Runtime, before the UPS will turn back on.
Field Description
Maximum
Required Delay -
Force Negotiation
Enabling Force Negotiation resets the Maximum Required Delay value to match the
Low Battery Duration. An updated status packet is sent by the NMC to all of the
registered PowerChute agents. PowerChute then compares the Low Battery Duration
sent in that packet to its total required shutdown time and increases the Maximum
Required Delay accordingly, or the Power Off Delay for the Outlet Group with which it
is registered.
PowerChute does a runtime remaining verification check every 30 seconds, which
compares the PowerChute total shutdown time required to the NMC Low Battery
Duration.
Selecting Force Negotiation will reset the Power Off Delay for all Outlet Groups to the
same value as Low Battery Duration.
Force Negotiation can take up to ten minutes to calculate the value required by all of
the PowerChute clients registered on the NMC. For more information see “Shutdown
delays and PowerChute Network Shutdown” on page 33.
On-Battery
Shutdown
Behavior
Define the behavior of the UPS following a shutdown:
• Restart when power is restored - When utility power is restored, restart the UPS.
• Turn off and stay off - The UPS remains off, even if the utility power is restored.
User Name Enter the user name of the account that is configured for PowerChute.
Authentication
Phrase
This phrase is used for authentication between PowerChute and the NMC. The
phrase is empty by default, and must be set before you can enable PowerChute.