Rockwell Automation 4100 REC Resolver to Encoder Converter Installation and Setup Manual - Manual (Page 26)

Publication 999-126 - February 1996
Installation & Hook-Up 21
Important: You must use both 5-position plugs when you power-up
the REC. We recommend you use twisted, shielded wire
that is UL listed. Refer to local wiring codes for more
information.
Power Supply Requirements
Use a 12W power supply with 24V DC output to power the REC. Use
a larger supply if you want to run multiple RECs or other devices.
Figure 2.11 shows where to connect the power supply ot the REC.
Important: Choose a power supply that complies with the
regulations and agencies in your area.
Figure 2.11
Wiring the Power Supply cable leads to the REC
Important: Anchor the cable so that no more than 2 feet of cable is
left unsupported. The excessive weight of an unanchored
cable could pull the plug out of the connector.
REC Internal Power Requirements
The REC converts the input power into its internal power
requirements using a DC-to-DC converter. The input power (500V
DC) is isolated from the internal circuitry and the chasis of the REC.
However, the common mode voltage of the input power with respect
to the chassis must not exceed +/- 100V DC.
Important: The REC is equipped with protection and filtering
circuits at various input, output, and power terminals.
You must earth ground the REC at a stable poiint for this
circuitry to operate properly. The earth ground is applied
to the REC through the chassis at the mounting tasbs of
the enclosure.
10
9
8
7
6
5
4
3
2
1
24V DC
Power
Supply
Power ground
Cable shield
18-36V DC
Plug A Plug B