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405
Analog Input Units
Section 7-2
Internal Circuits
■
Wiring for Analog Inputs
Note
(1) Use shielded twisted-pair cables, but do not connect the shield.
(2) When an input is not being used, short the + and – terminals.
(3) Separate wiring from power lines (AC power supply lines, high-voltage
lines, etc.)
(4) When there is noise in the power supply line, install a noise filter on the
input section and the power supply.
(5) Refer to the following information on open circuits when using voltage in-
puts.
2. Wiring Analog Inputs
AG
Analog input 4
Analog ground
COM1(
−
)
I IN1
V IN1
COM4(
−
)
I IN4
V IN4
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
250
Ω
250
Ω
Internal circuits
Analog input 1
to
to
V IN
COM
I IN
V IN
COM
I IN
Analog
device with
voltage
output
Analog
Input
Unit
+
−
+
−
Analog
device with
current
output
Analog
Input
Unit
Содержание CP1L-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...