Application Precautions - Omron SYSMAC CPM1 Operation Manual

Application Precautions

! Caution
5

Application Precautions

WARNING
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! Caution
Caution
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Caution
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Caution
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Caution
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• 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.
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.
Observe the following precautions when using the PC.
Failure to abide by the following precautions could lead to serious or possibly
fatal injury. Always heed these precautions.
• Always ground the system to 100 Ω or less when installing the system to pro-
tect against electrical shock.
• Always turn off the power supply to the PC before attempting any of the follow-
ing. Performing any of the following with the power supply turned on may lead
to electrical shock:
• Mounting or removing any Units.
• Assembling any Unit.
• Connecting or disconnecting any cables or wiring.
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.
Tighten the screws on the terminal block of the AC Power Supply Unit to the
torque specified in the manuals. Loose screws may result in burning or malfunc-
tion.
Always clear memory before beginning to program the CPM1. Although
memory is cleared before the CPU Unit is shipped (except for bits with specific
functions), AR 1314, which turns ON when the internal capacitor cannot back up
memory, may have turned ON during shipment.
If the CPM1 will be turned off for periods exceeding the data backup period of the
internal capacitor, design the system so that it will not be influenced if data in the
DM, HR, and CNT areas is cleared when power is turned off.
Either switch the CPM1 to RUN or MONITOR mode, or turn off and on power to
the CPM1 after changing from a Programming Device any data that is backed up
in flash memory. This data includes the user program, read-only DM area (DM
6144 to DM 6599), and the PC Setup (DM 6600 to DM 6655).
Section 5
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