6
Intro
duc
tion
E3X-DRT21-S
User’s Manual
Introduction
Precautions for Safe Use
Please observe the following precautions for safe use of E3X-DRT21-S.
• Do not use the product in environments where it can be exposed to inflammable/
explosive gas.
• Do not use the product where to be exposed to water, oil, chemical fumes or steam.
• Do not disassemble, repair or modify this product.
• Do not wire the product when the power is ON.
• Do not drop, or subject to excessive shock or vibration. It may cause a failure or
abnormal operation.
• Use the specified communications cables.
• Wire communications within the specified distance.
• Do not wire the communications cables near or in parallel with high-voltage or high-
current lines.
• Do not bend cables past their natural bending radius or pull on cables.
• Check all wiring carefully and completely before supplying power.
• Confirm that the correct polarity has been used in wiring the terminals and that the
communications and power lines have been otherwise wired correctly. Incorrect wir-
ing may result in failure.
• Do not connect or disconnect connectors while the power supply is turned ON. Doing
so may result in failure or malfunction.
• Use the specified power supply voltage.
• Do not turn ON or OFF the power supply to the Mobile Console during communica-
tions. Doing so may result in communications errors.
• Make sure that screws for the communication connector are tightened firmly. (0.5 N·m
to 0.6N·m)
• Do not use this product if the case is damaged.
• Dispose this product as industrial waste.
Precautions for Safe Use