Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 33)

Rockwell Automation Publication 750-RM002B-EN-P - September 2013 33
Drive Configuration Chapter 1
For this circuit, set the following parameters (P301 [Access Level] must be set to
1 “Advanced” to see P563 [DI ManRef Sel]).
The drive requests Manual mode, start, and tracks the reference speed coming
from the Analog Input when the H-O-A switches to Hand. (The HIM still reads
Auto. This display changes only when the HIM has control of Manual mode).
Safe Limited Speed
Safe Limited Speed through the PowerFlex Safe Speed Monitor option module
uses Manual mode to control the speed of the drive. When Safe Limited Speed
monitoring is enabled, the safety module requests manual control of the drive. If
the drive does not reach a safe speed, as defined on the option module by P55
[Safe Speed Limit] and within P53 [LimSpd Mon Delay], the drive faults.
While the option module uses the Manual mode, it has no way to provide a speed
reference or start the drive. The following parameters must thus be configured.
P326 [Manual Cmd Mask]
Turn off the bit corresponding to the safety option’s port to allow modules
installed in other ports to continue to control the drive when it is operating in
Manual mode. For example, if the safety option is installed in port 6, then turn
off Bit 6 in this parameter.
P327 [Manual Ref Mask]
Turn on the bit corresponding to the safety option’s port to allow the safety
option to command the drive to use its Manual Speed Reference when it is
operating in Manual mode. For example, if the safety option is installed in port 6,
then turn on Bit 6 in this parameter.
P328 [Alt Man Ref Sel]
Set this parameter to select the desired speed reference when the drive is
operating in Manual mode. For example, set this parameter to the value Port 0:
Preset Speed 1 to configure the drive to use P571 [Preset Speed 1] as the Manual
Speed Reference. In this case, P571 [Preset Speed 1] must be less than P55 [Safe
Speed Limit] in the safety option to avoid causing an SLS Speed Fault.
See the Safe Speed Monitor Option Module for PowerFlex 750-Series AC Drives
Safety Reference Manual, publication
750-RM001 , for more information.
Number Parameter Name Value
158 DI Stop Digital Input 0
172 DI Manual Ctrl Digital Input 1
176 DI HOA Start Digital Input 1
324 Logic Mask xxxxxxxxxxxxxxx1 (Digital In)
326 Manual Cmd Mask xxxxxxxxxxxxxxx1 (Digital In)
327 Manual Ref Mask xxxxxxxxxxxxxxx1 (Digital In)
563 DI ManRef Sel Anlg In0 Value