Software • B&R Automation Device Interface (ADI) - Control Center
282
Automation PC 810 with GM45 CPU board user's manual V1.28
9.4.6.1 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" shutdown caused by an overcurrent > 8 A on devices during battery operation is not
UL compliant!
Select the checkbox
Disable current limitation (8 A)
.
If current limitation is enabled (checkbox deselected), 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 turn-off within one 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 turn off after the defined
Low battery shutdown time
. This will allow the operating
system to shut down properly when UPS service is enabled.
9.4.6.2 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 discharged if the Windows UPS service is not enabled and the
UPS is therefore not turned off by the operating system.
If the UPS service is enabled, then the UPS will be turned off by the operating system when the battery level is low,
based on the Windows UPS service
Shutdown time
( see "Changing additional UPS settings" on page 282).
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 in UPS firmware version 1.10 and later. UPS
firmware version 1.08 always uses a turn off delay time of 180 seconds. UPS firmware versions
earlier than 1.08 do not shut down automatically when the battery level is low.
9.4.7 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 dialog box:
