Safety Messages; Hazardous High Voltage; Caution When Using Safe Stop Function; Definitions And Symbols - Hitachi WJ200 Series Instruction Manual

Safety Messages

For the best results with the WJ200 Series inverter, carefully read this manual and all
of the warning labels attached to the inverter before installing and operating it, and
follow the instructions exactly. Keep this manual handy for quick reference.

Definitions and Symbols

A safety instruction (message) includes a "Safety Alert Symbol" and a signal word or
phrase such as WARNING or CAUTION. Each signal word has the following meaning:
HIGH VOLTAGE: This symbol indicates high voltage. It calls your attention to items or
operations that could be dangerous to you and other persons operating this equipment.
Read the message and follow the instructions carefully.
WARNING: indicates a potentially hazardous situation that, if not avoided, can result in
serious injury or death.
CAUTION: Indicates a potentially hazardous situation that, if not avoided, can result in
minor to moderate injury or serious damage to the product. The situation described in
the CAUTION may, if not avoided, lead to serious results. Important safety measures
are described in CAUTION (as well as WARNING), so be sure to observe them.
Step 1: Indicates a step in a series of action steps required to accomplish a goal. The
number of the step will be contained in the step symbol.
NOTE: Notes indicates an area or subject of special merit, emphasizing either the
product's capability or common errors in operation or maintenance.
TIP: Tips give a special instruction that can save time or provide other benefits while
installing or using the product. The tip calls attention to an idea that may not be
obvious to first-time users of the product.

Hazardous High Voltage

HIGH VOLTAGE: Motor control equipment and electronic controllers are connected to
hazardous line voltages. When servicing drives and electronic controllers, there may be
exposed components with housing 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 electronic controllers or
rotating machinery.

Caution when using Safe Stop Function

When using Safe Stop function, make sure to check whether the safe stop function
properly works when installation (before starting operation). Please carefully refer to
page Appendix E
i
i