User manual

6
ATTENTION
Electrostatic Discharges
Under dry condition, excessive electrostatic discharges
may occur. Make sure to remove electrostatic
discharges by touching a grounded metal piece before
touching your controller system modules.
ATTENTION
Cleaning
Never use chemicals such as thinner because they melt,
deform or discolor PCB boards.
ATTENTION
Precautions for use of power
• Run your PLC system only after the I/O devices and
motor devices have started. (For example, first power
on in the PROG mode, then change the operation
mode to RUN.)
• Make sure to power off I/O devices after ensuring PLC
operation is stopped.
• If you power on/off I/O devices when the PLC system
is in operation, the system may malfunction because
input signal noises may be recognized as normal
inputs.
ATTENTION
Before powering on
Make sure to follow these directions before powering
on your PLC system.
• When installing the system, ensure that there are no
metal chips or conductive fragments that stick to
wiring cables.
• Ensure that power supply and I/O wirings and power
supply voltage are all correct.
• Securely fasten installation and terminal screws.
• Set the operation mode switch to PROG mode.