Rockwell Automation 8510 AC Spindle Drive System User Manual - Manual (Page 70)

Interface Signal Descriptions
Chapter 7
7-66
Motor/Spindle Speed
These outputs can be programmed to display either motor or spindle speed.
The actual motor speed is determined from the resolver feedback and can
be output directly, or it can be adjusted for the selected gear range and then
output as spindle speed.
Full scale calibration is determined by the SPINDLE MODE – Max Cmnd
Spd parameter. If spindle speed is being output, the full scale calibration is
at Max Cmnd Spd in the highest speed gear range. The output voltage at
full scale output is 8 volts. If speed overshoot occurs because of improper
tuning or setup, the output can go to 10 volts or 125% of full scale
calibration. By parameter selection, this output can be programmed to be
either a unipolar or a bipolar output. In the bipolar mode, this output can be
used as an analog tachometer output updated at a 1.6 ms rate.
% Load
This is a unipolar output that indicates the level of commanded torque
output as a percent of the torque that can be generated at that specific
speed. If the drive operates at maximum torque output from zero speed to
base speed and maximum power output from base speed to max speed, the
output will be 10V DC throughout the entire range.
Full scale output is the maximum overload rating of the motor and drive
combination, i.e. 120% of the intermittent (30 minute) duty rating.
% Torque
This output is identical to Load except that it is a bipolar output. This
output can be used as a set-up monitoring point or as a torque command to
a slave drive in a master/slave drive combination.
Power Output
This output is a unipolar representation of motor power in kW throughout
the entire speed range. Full scale is the maximum overload rating (120% of
the intermittent power rating) of the motor/drive combination.
Orient Error
In the orient mode, the position error is shown as the spindle is oriented to
the final position. The full scale range of this output is
±
2 degrees of the
target position.
Resolver Feedback Signals Connector CN3 is used to connect the resolver and thermal switch that are
located in the 1327A series AC spindle motors to the drive. Refer to
Figure 7.3 for the connector location. Refer to Chapter 8 for the specific
motor connector to CN3 wiring instructions.
Resolver Stator – CN3-8 & 14 and 9 & 15
Sine and cosine excitation of the resolver stator.