Rockwell Automation 1784-PM16SE SoftLogix Motion Card Setup and Configuration Manual - Manual (Page 328)

Publication 1784-UM003A-EN-P – June 2003
320 Motion Object Attributes
External software (RSLogix5000) also uses the current configured value for
Axis Type to control the look of many of the tab dialogs associated with the
axis configuration tool.
Servo Loop Configuration The Servo Loop Configuration attribute determines the specific configuration
of the servo loop topology when the Axis Type is set to “servo”. When the
Axis Type is set to “feedback only”, the Servo Loop Configuration is used to
select which feedback port is to be used. Initial release of this object however
will not support the auxiliary feedback port.
External Drive Type When the application requires the servo module axis to interface with an
external velocity servo drive, the External Drive Type should be configured for
“velocity servo drive”. This disables the servo module’s GSV/SSV digital
velocity loop. If the External Drive Type attribute is set to “torque servo drive”
the servo module’s GSV/SSV digital velocity loop is active. This configuration
is the required configuration for interfacing to a torque loop servo drive.
GSV/SSV Access Attribute Name Data Type Values
SSV/GSV Axis Type INT 0 = unused
1 = feedback only
2 = servo
GSV/SSV Access Attribute Name Data Type Values
SSV/GSV Servo Loop Configuration INT Enumeration:
0 = custom
1 = feedback only
2 = aux. feedback only
3 = position servo
4 = aux. position servo
5 = dual position servo
6 = dual command servo
7 = aux. dual command servo
8 = velocity servo
9 = torque servo
GSV/SSV Access Attribute Name Data Type Values
GSV External Drive Type DINT 0 = torque servo drive
1 = velocity servo drive