Rockwell Automation DeviceNet SEMINAR LAB EX - Manual (Page 66)

66 DeviceNet Seminar Lab Exercises
Publication 1787.6.1 - August 1997
Also notice that the value in N153:1 increments by 8191 for every push
of the RediSTATION operator interface’s Start button. Every increase of
8191 in the drive speed register commands the ac drive to increase by
15.00 Hz. Pressing the RediSTATION operator interface’s Stop button
loads a value of 8201 into N153:0, which commands the ac drive to stop.
Monitoring the
SMP-3 Overload
Relay Follow these directions to monitor the SMP-3 overload relay using
RSLogix 500 programming software.
Notice the value in N153:2 is 0, which is mapped to the SMP-3 overload
relay command register.
1. Press and hold in the RediSTATION operator interface’s Start button.
Notice in N153:2, the value changes to an 8 (start triac A /reverse
direction) or 16 (start triac B/forward direction). These values map to
certain bits in the SMP-3 overload relay command register telling the
SMP-3 overload relay to energize either output A or output B.
2. Release the Start button.
3. Press and hold in the RediSTATION operator interface’s Stop button.
Notice in N153:2, the value changes to a 3, which commands the
SMP-3 overload relay to de-energize outputs A or B.
4. Release the Stop button.
5. Close the Data File.
You return to this screen.