General Precautions; Safety Information; Precautions For Ul/Cul Marking - Omron V7 Quick Manual

• Some drawings in this manual are shown with protective covers or shields removed in order
to show detail with more clarity. Make sure all covers and shields are replaced before
operating the product.
• This manual may be modified when necessary because of improvements to the product,
modifications, or changes in specifications.
• To order a copy of this manual, or if your copy has been damaged or lost , contact your
OMRON YASKAWA Motion Control B. V.
(Hereinafter called the OYMC) representatives.
• OYMC is not responsible for any modification of the product made by the user, since that
will void the guarantee.
• This Manual is based on software number:
a) 5740 for units up to 4,0 kW
b) 5750 5,5 kW and 7,5 kW units

Safety Information

The following conventions are used to indicate precautions in this document. Failure to heed
precautions provided in this document can result in serious or possibly even fatal injury or damage to
the products or to related equipment and systems.
WARNING
CAUTION
Failure to heed a precaution classified as a caution can result inserious consequences depending on
the situation.

Precautions for UL/cUL Marking

• Do not connect or disconnect wiring, or perform signal checks while the power supply is turned ON.
• The Inverter internal capacitor is still charged even after the power supply is turned OFF. To prevent
electric shock, disconnect all power before servicing the Inverter, and then wait at least one minute
after the power supply is disconnected. Confirm that all indicators are OFF before proceeding.
• Do not perform a withstand voltage test on any part of the Inverter. The Inverter is an electronic
device that uses semiconductors, and is thus vulnerable to high voltage.
• Do not remove the Digital Operator or the blank cover unless the power supply is turned OFF.
Never touch the printed circuit board (PCB) while the power supply is turned ON.
• This Inverter is not suitable for use on a circuit capable of delivering more than 18,000RMS
symmetrical amperes, 250 volts maximum (200V class Inverters) or 480 volts maximum(400V class
Inverters).

General Precautions

Indicates precautions that, if not heeded, could possibly result in loss of
life or serious injury.
Indicates precautions that, if not heeded,could result in relatively
serious or minor injury, damage to the product, or faulty operation.
It may also be used to alert against unsafe practices. Even items
classified as cautions may result in serious accidents in some
situations. Always follow these important precautions.
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