Rockwell Automation 5730 DriveLogix5730 Controller for PowerFlex 700S Drives with Phase II Control - Manual (Page 35)

Placing and Configuring the Drive 2-11
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.
To inhibit a module from logic, you must first read the Mode attribute for
the module using a GSV instruction. Set bit 2 to the inhibit status (1 to
!
ATTENTION: Inhibiting a drive module breaks the controller’s
connection to the drive. In this situation, the controller can
neither start or 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.
a
hw0779.tif
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. !
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 CommLossData].
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.