Rockwell Automation 1440-DYN02-01RJ XM Dynamic Measurement Module - Manuel (Page 70)

70 Publication ICM-UM002F-EN-E - March 2013
Chapter 3 Configure XM Module in RSLogix 5000 Software
3. When finished, click one of these as needed.
• OK - Click to accept your edits and close the dialog box.
• Cancel - Click to close the dialog box without accepting your edits.
• Apply - Click to accept and apply your edits on any dialog and
continue editing.
Pulses Per Revolution Enter the number of tachometer signal pulses per
revolution of the shaft.
If the speed sensor is a proximity probe over a keyway,
there will be one pulse around the shaft. If the speed
sensor is a proximity probe over a gear, there will be a
pulse for each tooth on the gear. If the sensor detects
reflective tape or paint, there will be a pulse for each
reflective area around the shaft.
Enter 0 (zero) if you are not using a
tachometer. This disables the speed,
acceleration, and most phase measurements.
Response Time Choose how quickly the measured speed value and
acceleration value responds to a change in the input
signal.
• 2640 ms
• 220 ms
• 22 ms
For example, setting this to 220 ms means that the
speed is averaged over a quarter second, and the
reported value will reach 90% of the new steady state
value about 220 ms after the change in machine
speed.
Faster response times (22 ms) produce
measurements that are more accurate but are
more susceptible to noise. Slower response
times (220 ms, 2640 ms) produce less accurate
measurements but are less susceptible to
noise.
Fast response times are generally used when
you need to track rapid speed changes. Slow
response times are generally used for steady
speed applications or applications where it is
not necessary to track speed during rapid
changes.
In this field Values are Comments