Safety Instructions 1
Thank you for choosing this Mitsubishi inverter.
This Instruction Manual describes handling and cautions about the hardware, such as installation and wiring, for the FR-A862
(separated converter type) that are different from the FR-A860.
Information about the software, such as basic operations and parameters, is described in the FR-A800 Instruction Manual (Detailed)
in the CD-ROM enclosed with the product. For the details of Ethernet communication, refer to the FR-A800-E Ethernet Function
Manual in the enclosed CD-ROM. In addition to this manual, please read the manuals in the enclosed CD-ROM carefully. Do not use
this product until you have a full knowledge of the equipment, safety information and instructions.
Please forward this Instruction Manual to the end user.
Electric Shock Prevention
Fire Prevention
Injury Prevention
Additional Instructions
The following instructions must be also followed. If the product
is handled incorrectly, it may cause unexpected fault, an injury,
or an electric shock.
Safety Instructions
Do not attempt to install, operate, maintain or inspect the
product until you have read through this Instruction Manual
(Detailed) and appended documents carefully and can use the
equipment correctly. Do not use this product 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, an expert means a
person who meets all the conditions below.
• A person who took a proper engineering training. 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 Instruction Manual (Detailed), the safety instruction
levels are classified into "Warning" and "Caution"
Incorrect handling may cause hazardous
conditions, resulting in death or severe
injury.
Incorrect handling may cause hazardous
conditions, resulting in medium or slight
injury, or may cause only material
damage.
The level may even lead to a serious
consequence according to conditions. Both instruction levels
must be followed because these are important to personal
safety.
Warning
While the inverter power is ON, do not remove the front cover or
the wiring cover. Do not run the inverter with the front cover or
the wiring 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 accidentally touch the
charged inverter circuits and get an electric shock.
Before wiring or inspection, power lamp must be switched OFF.
Any person who is involved in wiring or inspection shall 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 (grounded). Earthing (grounding)
must conform to the requirements of national and local safety
regulations and electrical code (NEC section 250, IEC 536 class
1 and other applicable standards).
Any person who is involved in wiring or inspection of this
equipment shall be fully competent to do the work.
The inverter must be installed before wiring. Otherwise you may
get an electric shock or be injured.
Setting dial and key operations must be performed 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 change the cooling fan while power is ON. It is dangerous
to change the cooling fan while power is ON.
Do not touch the printed circuit board or handle the cables with
wet hands. Otherwise you may get an electric shock.
A PM motor is a synchronous motor with high-performance
magnets embedded in the rotor. Motor terminals holds high-
voltage while the motor is running even after the inverter power
is turned OFF. Before wiring or inspection, the motor must be
confirmed to be stopped. In an application, such as fan and
blower, where the motor is driven by the load, a low-voltage
manual motor starter must be connected at the inverter's output
side, and wiring and inspection must be performed while the
motor starter is open. Otherwise you may get an electric shock.
Caution
Inverter must be installed on a nonflammable wall without holes
(so that nobody touches the inverter heatsink on the rear side,
etc.). Mounting it to or near flammable material may cause a fire.
If the inverter has become faulty, the inverter power must be
switched OFF. A continuous flow of large current may cause a
fire.
Be sure to perform daily and periodic inspections as specified in
the Instruction Manual. If a product is used without any
inspection, a burst, breakage, or a fire may occur.
Caution
The voltage applied to each terminal must be the ones specified
in the Instruction Manual. Otherwise burst, damage, etc. may
occur.
The cables must be connected to the correct terminals.
Otherwise burst, damage, etc. may occur.
The polarity (+ and -) must be correct. Otherwise burst, damage,
etc. may occur.
While power is ON or for some time after power-OFF, do not
touch the inverter as it will be extremely hot. Touching these
devices may cause a burn.
Caution
Transportation and Mounting
Any person who is opening a package using a sharp object,
such as a knife and cutter, must wear gloves to prevent injuries
caused by the edge of the sharp object.
The product must be transported in correct method that
corresponds to the weight. Failure to do so may lead to injuries.
Do not stand or rest heavy objects on the product.
Do not stack the boxes containing inverters higher than the
number recommended.
When carrying the inverter, do not hold it by the front cover; it
may fall off or fail.
During installation, caution must be taken not to drop the inverter
as doing so may cause injuries.
The product must be installed on the surface that withstands the
weight of the inverter.
Do not install the product on a hot surface.
The mounting orientation of the inverter must be correct.
The inverter must be installed on a strong surface securely with
screws so that it will not drop.
Do not install or operate the inverter if it is damaged or has parts
missing.
Foreign conductive objects must be prevented from entering the
inverter. That includes screws and metal fragments or other
flammable substance such as oil.
As the inverter is a precision instrument, do not drop or subject it
to impact.
The surrounding air temperature for LD and ND (initial setting)
models must be between -10 and +50°C (non-freezing). The
surrounding air temperature for SLD and HD models must be
between -10 and +40°C (non-freezing). Otherwise the inverter
may be damaged.
The ambient humidity must be 95%RH or less (non-
condensing). Otherwise the inverter may be damaged. (Refer to
page 17 for details.)
