User's Manual

Table Of Contents
Power from the DeviceNet bus and from an external power supply
When the LRP is powered from both sources, the LRP830 will be
opto-isolated from the DeviceNet bus.
The LRP830 contains components sensitive to electro-static discharge. Take
proper grounding precautions before opening the LRP830.
To power the LRP830 from an external supply and the DeviceNet bus:
1. Open the LPR820 by loosening the four captive screws that
secure the cover.
2. Refer to Figure 25 and then move the power cable, labeled assem
-
bly 10-3110, from connector J7 to J9.
3. The DeviceNet cable, labeled assembly 10-3111, must then
exchange places with the power cable, moving from J9 to J7.
4. Make sure that the jumper on J1of the DeviceNet Interface Board
connects pins 3 and 4, and then close the LRP830.
5. Connect a separate +24V power supply to the external power
connector shown in Figure 12, page 15.
6. Wire the DeviceNet interface and power according to the pinouts
given for the DeviceNet connector in Figure 14, page 16.
Copyright © 2000 Escort Memory Systems
26 LRP830-Series Long-Range Passive Reader/Writer