B&R ACOPOSinverter X64, Manual, Page: 36 / 36

Problems and solutions
36 V 1.20
7 Problems and solutions
7.1 Boot loop
If the ACOPOSinverter P64new gets stuck in the boot loop after replacement, a 1-to-1 replacement is unfortunately
not possible. To continue using the existing Automation Studio project, an updated version of hardware upgrade
"8I64xxxxxxx.00X -1" must be installed.
In the updated upgrades (version 1.4.1.0 or later), extensions have been implemented in the hardware file to
optimize the cyclic data on the X2X bus for the ACOPOSinverter P64new. Depending on the module configuration,
these optimizations may be necessary.
Recommended procedure
1) Create a backup of your Automation Studio project.
2) Import the updated upgrade into your project.
3) Load the Automation Studio project onto the controller again.
4) If the drive leaves the boot loop, no further adjustments are necessary.
If the drive is still stuck in the boot loop, follow the steps below.
5) Check whether data point "ACPi_ModuleID" is linked to a variable in the project.
6) Switch "Inverter information" from "I/O mapping (max. traffic)" to "I/O mapping (more traffic)". After saving,
data point "ACPi_ModuleID" is no longer registered as UDINT but as UINT on the X2X bus. No information
is lost during the switchover since all valid module IDs are less than 65535.
7) Adjust the data type of the linked project variable and establish a link to the adjusted data point in IO
mapping.