!
xiv
•
Mounting or dismounting Power Supply Units, I/O Units, CPU Units,
Memory Cassettes, or any other Units.
•
Assembling the Units.
•
Setting DIP switch or rotary switches.
•
Connecting or wiring the cables.
•
Connecting or disconnecting the connectors.
Caution
Failure to abide by the following precautions could lead to faulty operation of the
PC or the system, or could damage the PC or PC Units. Always heed these pre-
cautions.
•
Fail-safe measures must be taken by the customer to ensure safety in the
event of incorrect, missing, or abnormal signals caused by broken signal lines,
momentary power interruptions, or other causes.
•
Interlock circuits, limit circuits, and similar safety measures in external circuits
(i.e., not in the Programmable Controller) must be provided by the customer.
•
Always use the power supply voltage specified in this manual. An incorrect
voltage may result in malfunction or burning.
•
Take appropriate measures to ensure that the specified power with the rated
voltage and frequency is supplied. Be particularly careful in places where the
power supply is unstable. An incorrect power supply may result in malfunction.
•
Install external breakers and take other safety measures against short-circuit-
ing in external wiring. Insufficient safety measures against short-circuiting may
result in burning.
•
Do not apply voltages to the Input Units in excess of the rated input voltage.
Excess voltages may result in burning.
•
Do not apply voltages or connect loads to the Output Units in excess of the
maximum switching capacity. Excess voltage or loads may result in burning.
•
Disconnect the functional ground terminal when performing withstand voltage
tests. Not disconnecting the functional ground terminal may result in burning.
•
Be sure that all the mounting screws, terminal screws, and cable connector
screws are tightened to the torque specified in the relevant manuals. Incorrect
tightening torque may result in malfunction.
•
Do not attempt to disassemble, repair, or modify any Units.
•
Be sure to confirm that the DIP switch and the data memory (DM) are properly
set.
•
Leave the label attached to the Unit when wiring. Removing the label may re-
sult in malfunction.
•
Remove the labels after the completion of wiring to ensure proper heat dissipa-
tion. Leaving the label attached may result in malfunction.
•
Mount the Unit only after checking the terminal block completely.
•
Be sure that the terminal blocks, Memory Units, expansion cables, and other
items with locking devices are properly locked into place. Improper locking
may result in malfunction.
•
Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
•
Use crimp terminals for wiring. Do not connect bare stranded wires directly to
terminals. Connection of bare stranded wires may result in burning.
•
Double-check all the wiring before turning on the power supply. Incorrect wir-
ing may result in burning.
•
Confirm that no adverse effect will occur in the system before attempting any of
the following. Not doing so may result in an unexpected operation.
Application Precautions
5
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Страница 2: ...C200H AD003 DA003 DA004 MAD01 Analog I O Units Operation Manual Revised June 2003...
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Страница 145: ...Cat No W325 E1 04 Note Specifications subject to change without notice Printed in Japan Authorized Distributor...