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Mitsubishi Electric FR-A7AR Instruction Manual Page 2

Relay output function.
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Thank you for choosing this Mitsubishi Electric inverter plug-in
option.
This Instruction Manual provides handling information and
precautions for use of this product. Incorrect handling might
cause an unexpected fault. Before using this product, read all
relevant instruction manuals carefully to ensure proper use.
Please forward this Instruction Manual to the end user.
This section is specifically about
safety matters
Do not attempt to install, operate, maintain or inspect this
product until you have read this Instruction Manual and
supplementary documents carefully. Do not use this product
until you have a full knowledge of this product mechanism,
safety information and instructions.
In this Instruction Manual, the safety instruction levels are
classified into "WARNING" and "CAUTION".
Incorrect handling may cause hazardous
WARNING
conditions, resulting in death or severe
injury.
Incorrect handling may cause hazardous
CAUTION
conditions, resulting in medium or slight
injury, or may cause only material
damage.
CAUTION
Note that even the
consequence depending on conditions. Be sure to follow the
instructions of both levels as they are critical to personnel safety.
A-1
level may lead to a serious
SAFETY INSTRUCTIONS
1. Electric shock prevention
WARNING
 Do not remove the front cover or the wiring cover of the
inverter while the inverter power is ON. Do not operate the
inverter with any cover or wiring cover removed, as accidental
contact with exposed high-voltage terminals and internal
components may occur, resulting in an electrical shock.
 Even if power is OFF, do not remove the front cover of the
inverter except for wiring or periodic inspection as you may
accidentally touch the charged circuits and get an electric shock.
 Before wiring or inspection, check that the display of the
inverter operation panel is OFF. Any person who is involved in
wiring or inspection shall wait for 10 minutes or longer after
power 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.
 Any person who is involved in wiring or inspection of this
product shall be fully competent to do the work.
 This product must be installed before wiring. Otherwise you
may get an electric shock or be injured.
 Do not subject the cables to scratches, excessive stress, heavy
loads or pinching. Doing so may cause an electric shock.
 Do not touch this product or handle the cables with wet hands.
Doing so may cause an electric shock.
2. Injury prevention
CAUTION
 The voltage applied to each terminal must be as specified in the
Instruction Manual. Otherwise an explosion or damage may occur.
 The cables must be connected to the correct terminals.
Otherwise an explosion or damage may occur.
 The polarity (+ and -) must be correct. Otherwise an explosion
or damage may occur.
 While power is ON or for some time after power OFF, do not touch
the inverter as it will be extremely hot. Doing so may cause burns.

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