xxiii
Application Precautions
5
erwise subjected to excessive shock. Batteries that have been subjected
to shock may leak if they are used.
• UL standards required that batteries be replaced only by experienced
technicians. Do not allow unqualified persons to replace batteries.
• 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.
• When transporting or storing circuit boards, cover them in antistatic mate-
rial to protect them from static electricity and maintain the proper storage
temperature.
• Do not touch circuit boards or the components mounted to them with your
bare hands. There are sharp leads and other parts on the boards that
may cause injury if handled improperly.
• Before touching a Unit or Board, be sure to first touch a grounded metallic
object to discharge any static build-up from your body. Not doing so may
result in malfunction or damage.
• Provide sufficient clearances around the Unit and other devices to ensure
proper heat dissipation. Do not cover the ventilation openings of the Unit.
• For wiring, use crimp terminals of the appropriate size as specified in rel-
evant manuals.
• Do not allow metallic objects or conductive wires to enter the Unit.
• Set the operating settings of the Temperature Controller properly accord-
ing to the system to be controlled.
• Provide appropriate safety measures, such as overheat prevention and
alarm systems, in separate circuits to ensure safety of the entire system
even when the Temperature Controller malfunctions.
• Allow at least 10 minutes after turning ON the Temperature Controller as
warmup time.
• Do not use thinner to clean the product. Use commercially available
cleaning alcohol.
• Mount the I/O Control Unit on the right of the CPU Block.
• When using Expansion I/O Blocks, configure the system so that the cur-
rent consumptions for the CPU Block and each of the Expansion I/O
Blocks do not exceed the specified values, and that the total current con-
sumption does not exceed the current capacity of the Power Supply Unit.
• Configure the system so that the number of Units in both the CPU Block
and Expansion I/O Blocks do not exceed the maximum number of con-
nectable Units for the Block.
