Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 52)

52 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 1 Drive Configuration
P381 [Bus Reg Kp]
Bus Regulator Proportional Gain - This determines how fast the bus regulator is
activated. The higher the value the faster the drive reacts once the DC voltage
setpoint is reached.
This parameter is valid only in Flux Vector modes.
Once again, the likelihood of these parameters needing adjustment is highly
unlikely. In fact, some descriptions related to the functionality of these
parameters are intentionally left out of this text to eliminate undesired motor
operation when they are adjusted unwisely.
Configurable Human
Interface Module Removal With the PowerFlex 750-Series the drives response to a HIM communication
loss (removal) is configurable. This feature is available in drives with firmware
revision 3.0 or later.
It is used to prevent unintended stopping of the drive by disconnecting the HIM.
However, the HIM cannot be the sole source of a Stop command to enable this
feature.
The configuration is similar to the communication adapter communication loss
selections:
• 0 = Fault
• 1 = Stop
• 2 = Zero Data
• 3 = Hold Last
• 4 = Send Fault Config
The default setting is 0 “Fault.”
The HIM can be connected to one 1 of 3 ports per the parameters below. Each
port is configured separately:
• P865 [DPI Pt1 Flt Actn] to determine the fault action at port 1.
• P866 [DPI Pt2 Flt Actn] to determine the fault action at port 2.
• P867 [DPI Pt3 Flt Actn] to determine the fault action at port 3.
If “Send Flt Cfg” is to be selected for the fault action, then configure the
appropriate parameter below.
• P868 [DPI Pt1 Flt Ref ] to set the speed reference if the HIM at port 1 is
disconnected.
• P869 [DPI Pt2 Flt Ref ] to set the speed reference if the HIM at port 2 is
disconnected.
• P870 [DPI Pt3 Flt Ref ] to set the speed reference if the HIM at port 3 is
disconnected.
A constant value must be entered as the fault speed reference in this instance.