Installation Environment - OE Max Controls NX7-28ADR Manual

Installation Environment

Do not install your PLC system if any of the following
ATTENTION
conditions are present.:
• Ambient temperature outside the range of 0 to 55° C
(32 to 131° F).
• Direct sunlight.
• Humidity outside the range of 30% to 85% (non-
condensing)
• Chemicals that may affect electronic parts.
• Excessive or conductive dust, or salinity.
• High voltage, strong magnetic fields, or strong
electromagnetic influences.
• Direct impact and excessive vibration.
Electrostatic Discharges
ATTENTION
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.
Cleaning
ATTENTION
Never use chemicals such as thinner because they melt,
deform or discolor PCB boards.
Precautions for use of power
ATTENTION
• 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.
Before powering on
ATTENTION
• 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.
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