Configuring the stop command – Rockwell Automation 20G PowerFlex 750-Series AC Drives User Manual
Page 351
Rockwell Automation Publication 750-RM002B-EN-P - September 2013
351
Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
Chapter 6
Configuring the Stop Command
While there are different selections when operating the drive and Safe Speed
Monitor option module in Standard mode versus the Integrated Motion on the
EtherNet/IP Network mode, the equivalent functions operate the same. In the
Integrated Motion on the EtherNet/IP Network mode of operation, the Stop
Command is programmed in the Actions Category of the Module Properties
dialog box. It is important to realize that there is no option to have a ramped stop
selected here; only current limit and motor brake options are available. These
selections do not ensure that a consistent ramp is implemented each time. If a
repeatable ramped stop is desired, then the user can program a Stop Monitor
Delay as a part of the Safe Speed Monitor configuration and then monitor the
Safe Speed inputs from the controller and issue a ramped stop prior to the safety
core issuing the Stop Command signal (as shown in this diagram).
TIP
The Safe Speed Monitor module parameters are not currently part of the Logix
platform and therefore, are not overwritten when a drive establishes a
Integrated Motion on the EtherNet/IP Network connection. Therefore, it is
possible to program the Safe Speed Monitor functions with configuration
software (for example, Connected Components Workbench) or a HIM before a
network connection is established. This lets you save the safety configuration
in the software application or HIM. Configuration of the safety functions can be
accomplished in one of the following ways:
• Program the Safe Speed Monitor functions and then download the
program that includes the drive parameters to the Logix controller and
establish the network connection.
• Inhibit the drive in the Logix I/O tree and program the Safe Speed Monitor
functions.
• Disconnect the network cable between the drive and the controller and
program the Safe Speed Monitor functions.