Hitachi J300U Series Instruction Manual page 2

For the Best Results with J300 Series inverter, read this manual and all of the warning sign attached to
the inverter carefully before installing and operating it, and follow the instructions exactly. Keep this
manual handy for your quick reference.
Definitions and Symbols
A safety instruction (message) is given with a hazard alert symbol and a signal word;
WARNING or CAUTION. Each signal word has the following meaning throughout this manual.
WARNING WARNING
CAUTION
NOTE
HAZARDOUS HIGH VOLTAGE
Motor control equipment and electronic controllers are connected to hazardous line voltages. When
servicing drives and electronic controllers, there might be exposed components with cases or protrusions
at or above line potential. Extreme care should be taken to protect against shock.
Stand on an insulating pad and make it a habit to use only one hand when checking components. Always
work with another person in case an emergency occurs. Disconnect power before checking controllers
or performing maintenance. Be sure equipment is properly grounded. Wear safety glasses whenever
working on an electronic controllers or rotating electrical equipment.
SAFETY
This symbol means hazardous high voltage. It used to call your attention to
items or operations that could be dangerous to your and other persons operat-
ing this equipment.
Read these message and follow these instructions carefully.
This is the "Safety Alert Symbol." This symbol is used to call your attention
to items or operations that could be dangerous to your or other persons operat-
ing this equipment. Read these messages and follow these instructions
carefully.
Indicates a potentially hazardous situation which, if not avoided, can result in
serious injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, can result in
minor to moderate injury, or serious damage of product.
The matters described under
serious results depending on the situation. Important matters are described in
(as well as
CAUTION
NOTE: Notes indicate an area or subject of special merit, emphasizing either
the product's capabilities or common errors in operation or maintenance.
CAUTION
), so be sure to observe them.
WARNING
- i -
may, if not avoided, lead to