Rockwell Automation SB3000 Universal Drive Controller Module - Manual (Page 18)

2-6 Universal Drive Controller Module
2.2.5 UDC Test Switches
The module faceplate contains a 3-position spring return-to-center switch and a
push-button that can be used for test purposes. Pressing the push-button sets register
1000, bit 0. When the switch is held in the up position, register 1000, bit 1 is set; when
held in the down position, register 1000, bit 2 is set. These bits can be tested for in an
application task, and any resulting action is determined by the application task.