Software • B&R Automation Device Interface (ADI) - Control Center
258
Panel PC 800 User's Manual V1.30
11.4.6.1 Disabling 8 A current limitation
Information:
It is not UL-compliant to switch off the 8 A current limitation on devices during battery operation!
"Low battery" shutdowns caused by overcurrent >8 A on devices running on the battery are not UL
compliant!
Select the checkbox
Disable current limitation (8 A)
.
If current limitation is enabled (checkbox not selected), then the UPS uses battery operation to check whether the
UPS battery is discharged with 8 A for longer than 16 seconds. If so, then an overcurrent alarm is sent to the PC.
Information:
Current limitation is only supported with UPS firmware version 1.10 and higher.
Enabling one of the two following options determines how the UPS should perform when an overcurrent alarm
occurs:
If
Turn-off within 1 minute
is selected, then the UPS will be switched off within one minute when an overcurrent
alarm occurs.
Warning!
The operating system will not be properly shut down if an overcurrent alarm occurs!
If
Perform "low battery" shutdown
is selected, then the UPS will also signal a "Low battery alarm" in addition to
the overcurrent alarm and will be switched off after the defined
Low battery shutdown time
. This will allow the
operating system to shut down properly when the UPS service is enabled.
11.4.6.2 Changing the shutdown time of the UPS when the battery is low
Enter the
Low battery shutdown time
in seconds. This is the amount of time that the UPS will wait before shutting
off the power supply when the battery level is low.
This prevents the UPS battery from becoming too low if the Windows UPS service is not enabled to have the
operating system turn off the UPS.
If the UPS service is enabled, then the UPS will be turned off by the operating system in accordance with the
Shutdown time
UPS service in Windows (see "Changing additional UPS settings" on page 258) when the battery
level is low . The
Low battery shutdown time
will then be ignored.
Information:
•
The low battery shutdown time must be set to at least 60 seconds so that the operating system
has enough time to send the shutdown command to the UPS when the battery level is low
(normally occurs after approximately 30 seconds).
•
The low battery shutdown time can only be set with UPS firmware version 1.10 and higher. UPS
firmware version 1.08 always uses a switch-off delay of 180 seconds. UPS firmware versions
older than 1.08 do not shut down automatically when the battery level is low.
11.4.7 Changing additional UPS settings
1. Open the
Control Center
in the
Control Panel
.
2. Select the
UPS
tab.
3. Under
UPS settings
, click on
Advanced
. This opens the following window: