LS ELECTRIC L7NHF Series, User Manual

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Introduction
vi

Repair/Inspection Precautions
Caution

Before performing repair or inspection, turn off the power, wait at least 15 minutes,
make sure that the charge lamp has gone off, and check the voltage. Enough voltage
may remain in the electrolytic condenser after the power is off to cause an electric
shock.

Only authorized personnel may repair and inspect the device or replace its parts.

Never modify this device in any way.

General Precautions
Caution

This user manual is subject to change due to product modification or changes in
standards. If such changes occur, we issue a new user manual with a new product
number.

Product Application
Caution

This product is not designed or manufactured for machines or systems intended to
sustain human life.

This product is manufactured under strict quality control conditions. Nevertheless,
install safety devices if installing the product in a facility where product malfunctions
may result in a major accident or a significant loss.

EEPROM Lifespan
Caution

EEPROM is rewritable up to 4 million times for the purpose of recording parameter
settings and other information. The servo drive may malfunction if the total number of
the following tasks exceeds 4 million, due to the lifespan of the EEPROM.

EEPROM recording as a result of a parameter change

EEPROM recording as a result of an alarm