Inhibiting the drive connection – Rockwell Automation 5720 DriveLogix System User Manual

Page 71

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Publication 20D-UM002C-EN-P - November 2003

Placing and Configuring the Drive 3-13

Inhibiting the Drive
Connection

RSLogix 5000 programming software allows you to inhibit the controller’s
connection to the drive, in the same way you inhibit its connection to an I/O
module. Inhibiting the drive module shuts down the connection from the
controller to the drive. When you create the module you can choose to inhibit
it. After you have created the module you can inhibit or un-inhibit it by
manipulating its properties window.

ATTENTION

!

Inhibiting a drive module breaks the controller’s
connection to the drive. In this situation, the controller can
neither, start/stop the drive nor read the status of the drive.
The drive can continue to operate based on its parameter
settings and inputs. To avoid potential personal injury and
damage to machinery, make sure this does not create unsafe
operation.

If you are:

Inhibit the drive module to:

offline

put a place holder for the drive module to indicate that configuration is not yet complete.

The inhibit status is stored in the project. When you download the project, the module is still inhibited.

online

stop communication to the drive.

If you inhibit the drive while you are connected to the module, the connection to the module is closed. By default, the
PowerFlex 700S drive will fault. The data inputs to the drive will either hold last state, or reset to zero data based on the
setting of parameter 385 [Lgx Comm Loss Data].

If you inhibit the drive but a connection to the module was not established (perhaps due to an error condition or fault), the
module is inhibited. The module status information changes to indicate that the module is inhibited and not faulted.

If you uninhibit the drive (clear the check box), and no fault condition occurs, a connection is made to the drive.

On the Connection tab during creation or in the Properties window

Check the inhibit box to

inhibit the connection to

the drive

When you inhibit the drive module, the Controller Organizer displays

a yellow attention symbol

over the module.

!

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