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3-3
Section
''
Assembling Connectors
Connector
(jack)
Small pan-head
screws
Case
3-3-4 Wiring Precautions
Operational errors can occur in most electronic control devices if they are sub-
jected to electronic noise from nearby power lines or loads. Recovery from such
errors is usually very difficult and time consuming. To avoid such noise-gener-
ated operational errors and improve system reliability, always observe the fol-
lowing precautions in wiring the system.
•
Cables must be of the required diameter.
•
Power lines (e.g., AC power supply, motor power line) and control lines (e.g.,
pulse output lines, external I/O signal lines) must be wired separately. Never
put these lines into the same duct or make them into a single bundle.
•
Use shielded cable for control lines.
•
Attach a surge absorber to all inductive loads, such as relays, solenoids, and
solenoid valves.
+
DC
--
Diode for surge
absorption
AC
Surge ab-
sorber
RY
RY
DC relays
AC relays
Note Connect the diode and surge absorber as close as possible to the relay. Use a
diode capable of withstanding a voltage five times higher than the circuit voltage.
Solenoid
Surge absorber
Solenoids, etc.
Содержание SYSMAC C500-NC113
Страница 1: ...Cat No W323 E3 1 Position Control Units SYSMAC C500 NC113 C500 NC211 OPERATION MANUAL...
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Страница 246: ...01 1 3 2 D 2 0 1 01 1 6 9 0 1 2 2 2 E 0 3 9 2 2 F H 69 9 2 4 54 60 7 5 2 I 4 2 7 2 3 2 69 0 2...
Страница 247: ...J L 2 3 60 7 5 M N 2 0 1 6 9 2 O 2 2 2 2 5 91 2 5 6 4 2 2 2 P 0 0 87 87...
Страница 248: ...2 2 2 2 9 4 2 0 R 7 6 0 4 9 6 9 0 6 9 0 6 9 S 2 2 2 2 6 6 2 A 2 B 2 2 69 0 3 3 3 2 T 9 4 2...
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