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5Application Precautions
xiv
• Use the Units only with the power supplies and voltages specified in the opera-
tion manuals.
• Take measures to stabilize the power supply to conform to the rated supply if it
is not stable.
• Provide circuit breakers and other safety measures to provide protection
against short-circuiting in external wiring.
• Install all Units according to instructions in the operation manuals.
• Do not install the Units in a place where they are subject to excessive noise in
order to avoid any trouble or malfunction.
• 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.
• Double-check all the wiring before turning ON the power supply. Incorrect wir-
ing may result in burning.
• Do not attempt to take any Units apart, to repair any Units, or to modify any
Units in any way.
• Do not apply any impact to the Units.
• Use the cables specified in this manual and in reference manuals. Use crimp
terminals when wiring the terminal block.
• Use a signal wire duct that is separate from the one used for high-tension lines
or power lines.
• Be sure to confirm that the switch settings and wiring are correct before turning
on the power supply.
• Check the user program for proper execution before actually running it on the
Unit. Not checking the program may result in an unexpected operation.
• Confirm that the user programs run properly.
• 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.
• Changing the operating mode of the PC.
• Force-setting/force-resetting any bit in memory.
• Changing the present value of any word or any set value in memory.
• Before touching the Unit, be sure to first touch a grounded metallic object in
order to discharge any static build-up. Not doing so may result in malfunction or
damage.
• Use, store, and transport the Units within the specifications provided in this
manual.
• Resume operation only after transferring to the new SRM1 the contents of the
DM and HR Areas required for resuming operation. Not doing so may result in
an unexpected operation.
• Do not pull on the cables or bend the cables beyond their natural limit. Doing
either of these may break the cables.
• Do not place objects on top of the cables. Doing so may break the cables.
• When replacing parts, be sure to confirm that the rating of a new part is correct.
Not doing so may result in malfunction or burning.
• Be sure to observe local ordinances and laws when disposing the Units.