Mitsubishi Electric 700 Series Installation Manualline page 3

This section is specifically about safety matters
Do not attempt to install, operate, maintain or inspect the inverter until you have read through this Installation Guideline and appended
documents carefully and can use the equipment correctly. Do not use the inverter until you have a full knowledge of the equipment,
safety information and instructions.
Installation, operation, maintenance and inspection must be performed by qualified personnel. Here, qualified personnel means
personnel who meets all the conditions below.
A person who took a proper engineering training. Please note if you can take a proper engineering training at your local Mitsubishi Electric
office. Such training may be available at your local Mitsubishi Electric office. Contact your local sales office for schedules and locations.
A person who can access operating manuals for the protective devices (e.g. light curtain) connected to the safety control system.
A person who has read and familiarized himself/herself with the manuals.
In this Installation Guideline, the safety instruction levels are classified into "WARNING" and "CAUTION".
Assumes that incorrect handling may cause hazardous conditions, resulting in death or severe injury.
WARNING
Assumes that incorrect handling may cause hazardous conditions, resulting in medium or slight injury, or may
CAUTION
cause physical damage only.
Note that even the
CAUTION
of both levels because they are important to personnel safety.
Electric Shock Prevention
While power is on or when the inverter is running, do not open the front cover or wiring cover. Otherwise you may get an electric
shock.
Do not run the inverter with the front cover removed. Otherwise, you may access the exposed high-voltage terminals or the charging
part of the circuitry and get an electric shock.
Even if power is off, do not remove the front cover except for wiring or periodic inspection.You may access the charged inverter circuits and
get an electric shock.
Before starting wiring, inspection or switching EMC filter ON/OFF connector, check to make sure that the operation panel indicator is
off, wait for at least 10 minutes after the power supply has been switched off, and check that there are no residual voltage using a
tester or the like. The capacitor is charged with high voltage for some time after power off and it is dangerous.
This inverter must be earthed. Earthing must conform to the requirements of national and local safety regulations and electrical codes
(JIS, NEC section 250, IEC 536 class 1 and other applicable standards). A neutral-point earthed power supply for 400V class inverter
in compliance with EN standard must be used.
Any person who is involved in the wiring or inspection of this equipment should be fully competent to do the work.
Always install the inverter before wiring. Otherwise, you may get an electric shock or be injured.
Perform setting dial and key operations with dry hands to prevent an electric shock. Otherwise you may get an electric shock.
Do not subject the cables to scratches, excessive stress, heavy loads or pinching. Otherwise you may get an electric shock.
Do not replace the cooling fan while power is on. It is dangerous to replace the cooling fan while power is on.
Do not touch the printed circuit board with wet hands. You may get an electric shock.
When measuring the main circuit capacitor capacity (Pr.259 Main circuit capacitor life measuring = "1"), the DC voltage is applied to
the motor for 1s at powering off. Never touch the motor terminal, etc. right after powering off to prevent an electric shock.
Fire Prevention
Install the inverter on a non flammable wall without holes (so that nobody can touch the inverter heatsink on the rear side, etc.).
Mounting it to or near combustible material can cause a fire.
If the inverter has become faulty, switch off the inverter power. A continuous flow of large current could cause a fire.
When using a brake resistor, make up a sequence that will turn off power when an fault signal is output. Otherwise, the brake resistor
may excessively overheat due to damage of the brake transistor and such, causing a fire.
Do not connect a resistor directly to the DC terminals P/+, N/–. This could cause a fire and destroy the inverter. The surface temperature of
braking resistors can far exceed 100 °C for brief periods. Make sure that there is adequate protection against accidental contact and a safe
distance is maintained to other units and system parts.
Daily and periodic inspections must be performed as instructed in the Instruction Manual. If the product is used without receiving any
inspection, it may cause a burst, break, or fire.
Injury Prevention
Apply only the voltage specified in the instruction manual to each terminal. Otherwise, burst, damage, etc. may occur.
Ensure that the cables are connected to the correct terminals. Otherwise, burst, damage, etc. may occur.
Always make sure that polarity is correct to prevent damage, etc. Otherwise, burst, damage, etc. may occur.
While power is on or for some time after power-off, do not touch the inverter as it is hot and you may get burnt.
level may lead to a serious consequence according to conditions. Please follow strictly the instructions
WARNING
CAUTION
CAUTION