User's Manual

Table Of Contents
3.8 Power Requirement
The LRP830 power supply requirement are:
n
18 to 30Vdc
n
31W maximum power consumption.
The maximum current consumption at 24Vdc is 1.3 A.
Power Options
There are three options for powering the LRP830:
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Powered from the DeviceNet Bus (default)
This is the default configuration for powering the LRP830. If the
power available over your DeviceNet network is not sufficient to
power the LRP830, use one of the following methods.
n
Powered via the external power connector
This is how you must power the LRP830 if you are not connecting
the LRP830 to a DeviceNet network.
n
Powered from an external supply and isolated DeviceNet bus
power (isolated mode)
When the LRP is powered from both sources, the LRP830 will be
opto-isolated from the DeviceNet bus.
The DeviceNet interface board draws 20 mA at 24 Vdc from the
DeviceNet bus when the LRP830 is powered with this method.
Power to the external power connector should conform to the spec
-
ifications given above.
If you choose to power the LRP830 with an external supply via the power
connector, you must open the LRP830 and changed jumper and cable loca
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tions. The following sections describe how to make these changes.
Copyright © 2000 Escort Memory Systems
LRP830-Series Long-Range Passive Reader/Writer
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