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OHMs Inputs
Ohms inputs are wired similar to 2-wire RTD inputs. That is, they
require a current source, and thus must use one of the IRTD current
sources. Also, two terminals are jumpered together as they are for
two-wire RTD inputs.
Analog channels wired for Ohms inputs differ from RTD inputs in
these aspects:
n
Ohms inputs connect to variable resistance devices other than
RTDs, and
n
Ohms inputs are configured in ControlEdge Builder as Ohms
inputs, rather than as RTD inputs.
Examples of wiring for resistance inputs are given in
section.
Shield Grounding
Shields must be grounded as described under Shield Grounding at
the beginning of this guide.
CAUTION:
- Hazardous voltages exist at terminal blocks.
- Using switches at field devices disconnect the field wiring from
power sources before servicing.
- Failure to comply with these instructions could result in death
or serious injury.
Содержание ControlEdge 900 platform
Страница 6: ...6 Contents ...
Страница 12: ...12 Chapter 1 About this guide ...
Страница 52: ...52 ...
Страница 57: ...57 One Slot Rack 1 CPM 1 EPM 1 P S 1 RM ...
Страница 59: ...59 One Slot Rack ...
Страница 62: ...Figure 5 7 Rack dimensions with redundant power supply 62 ...
Страница 75: ...75 c Insert the Ethernet cables and mount the security cover for the EMP ...
Страница 76: ...d Optional mount a wire security seal The user should get a wire security seal themselves 76 ...
Страница 124: ...Figure 5 31 Universal Analog Input Wiring Figure 5 32 Examples of RTD Input Wiring 124 ...
Страница 125: ...125 Figure 5 33 Analog Input Wiring Eight TCs Figure 5 34 Analog Input Wiring Eight Resistance Inputs ...
Страница 136: ...Settings using input 1 as example Single ended factory setting Differential Figure 5 46 Pulse Counting Wiring 136 ...
Страница 137: ...137 Figure 5 47 Pulse Outing Wiring Figure 5 48 Frequency Wiring ...
Страница 138: ...Figure 5 49 Quadrature Differential External Power Wiring Figure 5 50 Quadrature Single Ended External Power Wiring 138 ...
Страница 144: ...Figure 5 57 16 point High Level Analog Input Wiring 144 ...
Страница 147: ...147 Figure 5 60 AC DC Isolated Input Module Wiring ...
Страница 148: ...148 ...
Страница 168: ...168 ...
Страница 178: ...178 Chapter 8 Diagnostics and Troubleshooting ...
Страница 221: ...Appendix A Installing RTP RTP Internal schematic Applies to UAI Figure A 13 Analog Input RTP Internal schematic 221 ...
Страница 222: ...Appendix A Installing RTP 222 ...
Страница 227: ...Appendix A Installing RTP Relay Output RTP Internal schematic 227 ...