Instruction Manual

2
1. Essential Safety Precautions
• An emergency stop circuit and an interlock
circuit should be constructed outside of this
unit. Constructing these circuits inside this
unit may cause a runaway situation, system
failure, or an accident due to unit failure.
• Systems using this unit should be
designed so that output signals which
could cause a serious accident are moni-
tored from outside the unit.
• This unit is designed to be a general-purpose
device for general industries, and is neither
designed nor produced to be used with equip-
ment or systems in potentially life-threaten-
ing conditions. If you are considering using
this unit for special uses, including nuclear
power control devices, electric power
devices, aerospace equipment, medical life
support equipment, or transportation vehi-
cles, please contact your local distributor.
• Whenever installing, dismantling, wir-
ing, and conducting maintenance or
inspections, be sure to disconnect power
to this unit to prevent the possibility of
electric shock or fire.
• Do not disassemble or remodel this unit,
since it may lead to an electric shock or fire.
• Do not use this unit in an environment
that contains flammable gases since an
explosion may occur.
• Do not use this unit in an environment
that is not specified in the manuals. Oth-
erwise, an electric shock, fire, malfunc-
tion or other failure may occur.
• Because of the possibility of an electric
shock or malfunction, do not touch any
power terminals while the unit is operating.
• Communication cables or I/O signal lines
must be wired separately from the main
circuit (high-voltage, large-current) line,
high-frequency lines such as inverter
lines, and the power line. Otherwise, a
malfunction may occur due to noise.
• This unit must be properly installed
according to directions in the manuals.
Improper installation may cause the unit
to malfunction, or fail.
• This unit must be properly wired accord-
ing to directions in the manuals.
Improper wiring may cause a malfunc-
tion, failure or electric shock.
• Do not allow foreign substances, includ-
ing chips, wire pieces, water, or liquids
to enter inside this unit's case. Otherwise,
a malfunction, failure, electric shock, or
fire may occur.
• When disposing of this unit, handle it as
an industrial waste.
 To Avoid Damage
• Avoid storing or operating this unit in
either direct sunlight or excessively
dusty or dirty environments.
• Because this unit is a precision instrument,
do not store or use it in locations where
excessive shocks or vibration may occur.
• Avoid covering this unit’s ventilation
holes, or operating it in an environment
that may cause it to overheat.
• Avoid operating this unit in locations
where sudden temperature changes can
cause condensation to form inside the unit.
• Do not use paint thinner or organic sol-
vents to clean this unit.