Mitsubishi LE-30CTN Instruction Manual page 3

To assure safety
Make sure the user thoroughly read this instruction manual
before using the unit, and pay attention in assuring safety
while using the unit.
The unit is manufactured under the severe quality control.
When a severe accident or loss is expected in the equipment
used due to failure of the unit, provide a backup function or
the fail-safe function in the system.
In this manual, cautions of safety are classified into "DANGER"
and "CAUTION".
Turn off all the phases of the external power
Danger
supply before starting installation and wiring.
Otherwise, electrical shock or damage in the unit may
occur. Make sure to turn off all the phases of the
external power supply before starting installation and
wiring.
Perform class D grounding (grounding
Danger
resistance 100Ω or less).
Otherwise, electrical shock may occur. Perform
grounding (grounding resistance 100Ω or less) to the
unit using a wire of 2 mm
shock may occur. Never share the grounding with a
strong electric system.
Never open the covers while the power is
Danger
supplied to the unit or when the unit is
operating.
Never supply the power to the unit nor operate the unit
while the main body cover and the terminal cover are
open. When the covers are open, a high voltage area
may be exposed and electrical shock may occur.
Danger
Never touch a switch with a wet hand.
Never touch a switch with a wet hand, otherwise,
electrical shock may occur.
Never drop cutting chips and wire chips
Danger
while screw holes are tapped and wiring work
is performed.
Damage, fume, fire, malfunction or others may be
caused in the unit.
Danger
Never modify nor disassemble the unit
Never modify nor disassemble the unit. Otherwise, the
unit may become defective or an accident such as fire,
damage, etc. may occur.
Caution
We shall not be responsible for any damage caused by repair, disassembly, modification, etc. performed by a
third party other than MITSUBISHI or a company specified by MITSUBISHI.
The cautions on safety and the specifications described in the instruction manual are subject to change without
notice.
Cautions on Safety
(Make sure to read this page before using the unit.)
2
or more, otherwise, electrical
Danger:
When the unit is handled incorrectly, a
dangerous situation may occur and the
possibility of death or serious injury is
expected.
Caution:
When the unit is handled incorrectly, a
dangerous situation may occur and the
possibility of medium or slight injury is
expected or property damage exclusively is
expected.
Even an item is classified as "CAUTION", its contents are
important and it may lead to a serious result depending on the
situation. Make sure to observe every item.
Design the installation plan using the wire size
Danger
suitable to the current capacity.
Use the wire size suitable to the current capacity to supply
the power to the load. If a wire having smaller current
capacity is used, the insulation sheath will be melted and
insulation will become defective. In this situation, electrical
shock or a short-circuit may occur, and fire may occur.
Set up the emergency stop circuit
Danger
independently of the product.
Otherwise, the unit may become out of order and an
accident may occur when malfunction occurs in the
tension controller. Make sure to assemble the emergency
stop circuit outside the tension controller.
Never use the unit in an atmosphere where
Danger
inflammation or explosion can occur.
Otherwise, inflammation or explosion may occur.
Separate the wiring of the strong electric
Caution
system from the wiring of the weak electric
system.
Separate the wiring of the strong electric system from the
wiring of the weak electric system, and make sure that noises
are not superimposed on the wiring of the weak electric
system. Otherwise, the unit may not operate correctly.
Caution
Confirm the ambient environments.
Never install the unit with an environment where dusts, soot,
conductive dusts or corrosive gas is present or a place
exposed to high temperature, condensation or wind and rain.
Otherwise, the unit may be damaged, malfunction or be
deteriorated.
Do not use any unused terminals for any
Caution
external lines.
Correctly connect the AC power cable to the specified terminal,
and do not use any unused terminals for any external lines.
Improper connection may seriously damage the product.