Rockwell Automation 20G PowerFlex 755 Drive Embedded EtherNet/IP Adapter - Manual (Page 66)

66 Rockwell Automation Publication 750COM-UM001E-EN-P - October 2013
Chapter 4 Configuring the I/O
14. Save your RSLogix 5000 project and download the project to the Logix
controller.
ADC and Logix Memory
Starting in RSLogix 5000 software, version 16.00, drive configuration settings
have been stored in the project's ACD file which is downloaded and stored in the
controller. Configuration settings for ADC-capable devices contain additional
port and scripting information to choreograph the download process, so
additional Logix memory is used compared with PowerFlex 750-Series drives in
RSLogix 5000 software, version 16.00…19.00 systems. Note these examples of
memory usage:
• A PowerFlex 755 drive with no option modules, minimal parameters
changed from defaults, and no DeviceLogix program consumes
approximately 8.5 kilobytes of Logix memory per drive.
IMPORTANT Note that some parameters can affect the minimum/maximum of
other parameters and can cause the settings of these parameters to be
‘out of range’. This, in turn, will cause ADC to fail with a module fault
(code 16#0010) ‘Mode or state of module does not allow object to
perform requested service’.
For example, drive Parameters 520 - [Max Fwd Speed] and 521 - [Max
Rev Speed] affect the minimum/maximum of the following drive
parameters:
• 329 - [Alternate Manual Reference Analog High]
• 547 - [Speed Reference A Analog High]
• 552 - [Speed Reference B Analog High]
• 564 - [Digital Input Manual Reference Analog High]
• 571…577 - [Preset Speed 1…7]
• 602 - [Trim Reference A Analog High]
• 606 - [Trim Reference B Analog High]
Setting drive Parameter 520 or 521 to a lower value could cause the
settings in the above parameters to become ‘out of range’. If you adjust
Parameter 520 or 521, check the above parameters and make any
necessary updates to ensure they are ‘in range’.
NOTE: It is recommended to review all parameters needed for your
application to verify that they are ‘in range’. When using version 4.02 (or
later) Drive AOPs, a yellow highlight and text notification in the
Parameters Linear List editor appears to identify out of range parameters.
ATTENTION: If you manually download any configuration changes to
the drive, the next time the Logix controller establishes an I/O
connection with the drive will still trigger an ADC download. This
synchronizes the configuration signatures in the controller and drive,
and prevents future ADC downloads from occurring unless a
configuration change was made.