Hitachi MICRO-EHV+ Applications Manual page 3

Read this manual and related documents thoroughly before installing, operating, performing preventive maintenance or
performing inspection, and be sure to use the unit correctly. Use this product after acquiring adequate knowledge of the
unit, all safety information, and all cautionary information. Also, make sure this manual enters the possession of the
chief person in charge of safety maintenance.
Safety caution items are classifies as "Danger" and "Caution" in this document.
DANGER
CAUTION
However, depending on the circumstances, items marked with
The both marks show important information. Be sure to follow the instructions.
Icons for prohibited items and required items are shown below:
: Identifies prohibition. For example, when open flames are prohibited,
: Identifies requirement. For example, when grounding must be performed,
1. Installation
Use this product in an environment as described in the catalog or this document.

If this product is used in an environment subject to high temperature, high humidity, excessive dust, corrosive
gases, vibration or shock, it may result in electric shock, fire or malfunction.
Be sure to install the PLC according to this manual. Failure to do so could result in damage by falling off,

failure or malfunction.
Do not allow foreign objects such as wire chips to enter the unit.

They may become the cause of fire, malfunction or failure.
Safety Precautions
: Identifies information about practice or circumstances, which may lead to personal injury or
death, property damage, or economic loss.
: Identifies information about practice or circumstances, which may lead to personal injury,
property damage, or economic loss.
CAUTION
CAUTION
may result in major accidents.
is indicated.
is indicated.