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5
Application Precautions
xiii
•
Changing present values in memory from a Programming Device.
•
Force-setting/-resetting bits from a Programming Device.
•
Transferring I/O memory from a host computer or from another PC on a net-
work.
Caution
Execute online edit only after confirming that no adverse effects will be caused
by extending the cycle time. Otherwise, the input signals may not be readable.
Caution
Confirm safety at the destination node before transferring a program to another
node or changing the I/O memory area. Doing either of these without confirming
safety may result in injury.
Caution
Tighten the screws on the terminal block of the AC Power Supply Unit to the
torque specified in the operation manual. The loose screws may result in burning
or malfunction.
4
Operating Environment Precautions
Caution
Do not operate the control system in the following places:
•
Locations subject to direct sunlight.
•
Locations subject to temperatures or humidity outside the range specified in
the specifications.
•
Locations subject to condensation as the result of severe changes in tempera-
ture.
•
Locations subject to corrosive or flammable gases.
•
Locations subject to dust (especially iron dust) or salts.
•
Locations subject to exposure to water, oil, or chemicals.
•
Locations subject to shock or vibration.
Caution
Take appropriate and sufficient countermeasures when installing systems in the
following locations:
•
Locations subject to static electricity or other forms of noise.
•
Locations subject to strong electromagnetic fields.
•
Locations subject to possible exposure to radioactivity.
•
Locations close to power supplies.
Caution
The operating environment of the PC System can have a large effect on the lon-
gevity and reliability of the system. Improper operating environments can lead to
malfunction, failure, and other unforeseeable problems with the PC System. Be
sure that the operating environment is within the specified conditions at installa-
tion and remains within the specified conditions during the life of the system.
5
Application Precautions
Observe the following precautions when using the PC System.
WARNING
Always heed these precautions. Failure to abide by the following precautions
could lead to serious or possibly fatal injury.
•
Always ground the system to 100
Ω
or less when installing the Units to protect
against electric shock.
Summary of Contents for CVM1D
Page 462: ...SYSMAC CVM1D Duplex System Programmable Controllers Operation Manual Revised August 2001...
Page 463: ...iv...
Page 465: ...vi...