Mitsubishi Electric 800 Series Instruction Manual page 2

Thank you for choosing this Mitsubishi Electric inverter.
This Instruction Manual provides instructions for advanced use of the FR-A860 series inverters.
Incorrect handling might cause an unexpected fault. Before using this inverter, always carefully read this Instruction Manual and
the Instruction Manual (Startup) [IB-0600562ENG] packed with the product to use the equipment to its optimum performance.
Safety Instructions
Do not attempt to install, operate, maintain or inspect the
product until you have read through this Instruction Manual
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, the safety instruction levels are
classified into "WARNING" and "CAUTION"
Incorrect handling may cause
WARNING
hazardous conditions, resulting in
death or severe injury.
Incorrect handling may cause
CAUTION
hazardous conditions, resulting in
medium or slight injury, or may cause
only material damage.
CAUTION
Note that even the
serious consequence depending on conditions. Be sure to
follow the instructions of both levels as they are critical to
personnel safety.
 Electric Shock Prevention
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, 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 except for
wiring or periodic inspection. You may accidentally touch the
charged inverter circuits and get an electric shock.
 Before wiring or inspection, the 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 61140
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. Doing so may cause 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. Doing so may cause an electric shock.
 When measuring the main circuit capacitor capacity, 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.
 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.
 Fire Prevention
 Injury Prevention
level may lead to a
 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.
CAUTION
 Inverter must be installed on a nonflammable wall without holes
(so that nobody touches the inverter heat sink 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.
 When using a brake resistor, a sequence that will turn OFF
power when a fault signal is output must be configured.
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/+ and N/
-. Doing so could 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 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 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 installation
 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.
 For the FR-A860-00090 or lower, the surrounding air temperature
must be -10 to +40°C for the LD, ND, or HD rating (-10 to +30°C
for the SLD rating) (non-freezing). Otherwise the inverter may be
damaged.
 For the FR-A860-00170 to 01080, the surrounding air
temperature must be -10 to +40°C (non-freezing). Otherwise the
inverter may be damaged.
 For the FR-A860-01440 or higher, the surrounding air
temperature must be -10 to +50°C for the LD or ND rating (-10 to
+40°C for the SLD or HD rating) (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 24 for details.)
Safety Instructions
1