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Protection
Contextual help of the web interface – 52
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3.5.3.1.2 On low battery warning
In some cases, like a renewed power failure or failed battery, the capacity is much lower than anticipated. The UPS gives a Low
battery warning when there is 2 - 3 minutes of estimated runtime left, depending on the UPS and its settings. This time is typically
enough for shutting down a server but does not allow sophisticated sequential shutdown schemes.
The Low battery policy is intended for these cases.
3.5.3.1.3 When utility comes back
Note: When utility comes back settings cannot be altered for three phase UPS units and will remain at their defaults.
These settings define the restart sequence when utility comes back. For example, this allows sequential startup of the IT system
so that network and storage devices are connected to 'Primary' and start up immediately. After a delay database servers in Group1
are powered up, and then application and web servers in Group 2 are powered up. This startup would ensure that necessary
services would be available for each layer when needed. A sequential startup will also help avoid a peak power draw in the
beginning.
a Options
Keep shutdown sequence running until the end, and then restart (forced reboot).
Wait until UPS battery capacity exceeds a set percentage value in (%), and then automatically restart the UPS.
Then restart Group 1 after a set time in (s).
Then restart Group 2 after a set time in (s).
b Enable/Disable
Each option listed above can be enabled or disabled with check-boxes.
When disabled, the option will be greyed out.
3.5.3.2 Access rights per profiles
Administrator Operator Viewer