Mitsubishi Electric CNC User manual

Introduction
Thank you for selecting the Mitsubishi numerical control unit. This instruction manual describes the handling and
caution points for using this AC servo/spindle.Incorrect handling may lead to unforeseen accidents, so always read
this instruction manual thoroughly to ensure correct usage.
Make sure that this instruction manual is delivered to the end user. Always store this manual in a safe place.
In order to confirm if all function specifications described in this manual are applicable, refer to the specifications for
each CNC.
Notes on Reading This Manual
(1) Since the description of this specification manual deals with NC in general, for the specifications of individual
machine tools, refer to the manuals issued by the respective machine manufacturers. The "restrictions" and
"available functions" described in the manuals issued by the machine manufacturers have precedence to
those in this manual.
(2) This manual describes as many special operations as possible, but it should be kept in mind that items not
mentioned in this manual cannot be performed.

Precautions for Safety
Please read this manual and auxiliary documents before starting installation, operation, maintenance or inspection
to ensure correct usage. Thoroughly understand the device, safety information and precautions before starting
operation.
The safety precautions in this instruction manual are ranked as "WARNING" and "CAUTION".
Note that some items described as " CAUTION" may lead to major results depending on the situation. In any
case, important information that must be observed is described.
DANGER
When there is a potential risk of fatal or serious injuries if handling is mistaken.
WARNING
When a dangerous situation, or fatal or serious injuries may occur if handling is mistaken.
CAUTION
When a dangerous situation may occur if handling is mistaken leading to medium or minor injuries, or physical
damage.

The signs indicating prohibited and mandatory matters are explained below.
The meaning of each pictorial sign is as follows.
After reading this specifications and instructions manual, store it where the user can access it easily for reference.
The numeric control unit is configured of the control unit, operation board, servo drive unit, spindle drive unit, power
supply, servo motor and spindle motor, etc.
In this section "Precautions for safety", the following items are generically called the "motor".
• Servo motor
• Linear servo motor
• Spindle motor
• Direct-drive motor
In this section "Precautions for safety", the following items are generically called the "unit".
• Servo drive unit
• Spindle drive unit
• Power supply unit
• Scale interface unit
• Magnetic pole detection unit
Mitsubishi CNC is designed and manufactured solely for applications to machine tools to be used for industrial
purposes.
Do not use this product in any applications other than those specified above, especially those which are
substantially influential on the public interest or which are expected to have significant influence on human lives or
properties.
Indicates a prohibited matter. For example, "Fire Prohibited" is indicated as .
Indicates a mandatory matter. For example, grounding is indicated as .
CAUTION
CAUTION rotated
object
CAUTION HOT Danger Electric shock
risk
Danger explosive
Prohibited
Disassembly is
prohibited
KEEP FIRE AWAY General instruction
Earth ground
POINT
Important matters that should be understood for operation of this machine are indicated as a POINT in this
manual.
For Safe Use

1. Electric shock prevention
Do not open the front cover while the power is ON or during operation. Failure to observe this could lead to
electric shocks.
Do not operate the unit with the front cover removed. The high voltage terminals and charged sections will
be exposed, and can cause electric shocks.
Do not remove the front cover and connector even when the power is OFF unless carrying out wiring work
or periodic inspections. The inside of the units is charged, and can cause electric shocks.
Since the high voltage is supplied to the main circuit connector while the power is ON or during operation,
do not touch the main circuit connector with an adjustment screwdriver or the pen tip. Failure to observe
this could lead to electric shocks.
Wait at least 15 minutes after turning the power OFF, confirm that the CHARGE lamp has gone out, and
check the voltage between P and N terminals with a tester, etc., before starting wiring, maintenance or
inspections. Failure to observe this could lead to electric shocks.
Ground the unit and motor. For the motor, ground it via the drive unit.
Wiring, maintenance and inspection work must be done by a qualified technician.
Wire the servo drive unit and servo motor after installation. Failure to observe this could lead to electric
shocks.
Do not touch the switches with wet hands. Failure to observe this could lead to electric shocks.
Do not damage, apply forcible stress, place heavy items on the cables or get them caught. Failure to
observe this could lead to electric shocks.
Always insulate the power terminal connection section. Failure to observe this could lead to electric
shocks.
After assembling the built-in IPM spindle motor, if the rotor is rotated by hand etc., voltage occurs between
the terminals of lead. Take care not to get electric shocks.
WARNING

2. Injury prevention
When handling a motor, perform operations in safe clothing.
In the system where the optical communication with CNC is executed, do not see directly the light
generated from CN1A/CN1B connector of drive unit or the end of cable. When the light gets into eye, you
may feel something is wrong for eye.
(The light source of optical communication corresponds to class1 defined in JISC6802 or IEC60825-1.)
The linear servo motor, direct-drive motor and built-in IPM spindle motor uses permanent magnets in the
rotor, so observe the following precautions.
(1)Handling
• The linear servo motor, direct-drive motor and built-in IPM spindle motor could adversely affect medical
electronics such as pacemakers, etc., therefore, do not approach the rotor.
• Do not place magnetic materials as iron.
• When a magnetic material as iron is placed, take safety measure not to pinch fingers or hands due to the
magnetic attraction force.
• Remove metal items such as watch, piercing jewelry, necklace, etc.
• Do not place portable items that could malfunction or fail due to the influence of the magnetic force.
• When the rotor is not securely fixed to the machine or device, do not leave it unattended but store it in the
package properly.
• When installing the motor to the machine, take it out from the package one by one, and then install it.
• It is highly dangerous to lay out the motor or magnetic plates together on the table or pallet, therefore never
do so.
(2)Transportation and storage
• Correctly store the rotor in the package to transport and store.
• During transportation and storage, draw people's attention by applying a notice saying "Strong magnet-
Handle with care" to the package or storage shelf.
• Do not use a damaged package.
(3)Installation
• Take special care not to pinch fingers, etc., when installing (and unpacking) the linear servo motor.
WARNING

1. Fire prevention
Install the units, motors and regenerative resistor on non-combustible material. Direct installation on
combustible material or near combustible materials could lead to fires.
Always install a circuit protector and contactor on the servo drive unit power input as explained in this
manual. Refer to this manual and select the correct circuit protector and contactor. An incorrect selection
could result in fire.
Shut off the power on the unit side if a fault occurs in the units. Fires could be caused if a large current
continues to flow.
When using a regenerative resistor, provide a sequence that shuts off the power with the regenerative
resistor's error signal. The regenerative resistor could abnormally overheat and cause a fire due to a fault
in the regenerative transistor, etc.
The battery unit could heat up, ignite or rupture if submerged in water, or if the poles are incorrectly wired.
Cut off the main circuit power with the contactor when an alarm or emergency stop occurs.
2. Injury prevention
Do not apply a voltage other than that specified in this manual, on each terminal. Failure to observe this
item could lead to ruptures or damage, etc.
Do not mistake the terminal connections. Failure to observe this item could lead to ruptures or damage,
etc.
Do not mistake the polarity (+,- ). Failure to observe this item could lead to ruptures or damage, etc.
Do not touch the radiation fin on unit back face, regenerative resistor or motor, etc., or place parts (cables,
etc.) while the power is turned ON or immediately after turning the power OFF. These parts may reach high
temperatures, and can cause burns or part damage.
Structure the cooling fan on the unit back face, etc., so that it cannot be touched after installation.
Touching the cooling fan during operation could lead to injuries.
Take care not to suck hair, clothes, etc. into the cooling fan.
CAUTION

3. Various precautions
Observe the following precautions. Incorrect handling of the unit could lead to faults, injuries and electric shocks, etc.
(1) Transportation and installation
Correctly transport the product according to its weight.
Use the motor's hanging bolts only when transporting the motor. Do not transport the machine when the
motor is installed on the machine.
Do not stack the products above the tolerable number.
Follow this manual and install the unit or motor in a place where the weight can be borne.
Do not get on top of or place heavy objects on the unit.
Do not hold the cables, axis or encoder when transporting the motor.
Do not hold the connected wires or cables when transporting the units.
Do not hold the front cover when transporting the unit. The unit could drop.
Always observe the installation directions of the units or motors.
Secure the specified distance between the units and control panel, or between the servo drive unit and
other devices.
Do not install or run a unit or motor that is damaged or missing parts.
Do not block the intake or exhaust ports of the motor provided with a cooling fan.
Do not let foreign objects enter the units or motors. In particular, if conductive objects such as screws or
metal chips, etc., or combustible materials such as oil enter, rupture or breakage could occur.
Provide adequate protection using a material such as connector for conduit to prevent screws, metallic
detritus, water and other conductive matter or oil and other combustible matter from entering the motor
through the power line lead-out port.
The units, motors and encoders are precision devices, so do not drop them or apply strong impacts to
them.
CAUTION

Store and use the units under the following environment conditions.
(Note 1) For details, confirm each unit or motor specifications in addition.
(Note 2) -15°C to 55°C for linear servo motor.
When disinfectants or insecticides must be used to treat wood packaging materials, always use methods
other than fumigation (for example, apply heat treatment at the minimum wood core temperature of 56 °C
for a minimum duration of 30 minutes (ISPM No. 15 (2009))).
If products such as units are directly fumigated or packed with fumigated wooden materials, halogen
substances (including fluorine, chlorine, bromine and iodine) contained in fumes may contribute to the
erosion of the capacitors.
When exporting the products, make sure to comply with the laws and regulations of each country.
Do not use the products in conjunction with any components that contain halogenated flame retardants
(bromine, etc). Failure to observe this may cause the erosion of the capacitors.
Securely fix the servo motor to the machine. Insufficient fixing could lead to the servo motor slipping off
during operation.
Always install the servo motor with reduction gear in the designated direction. Failure to do so could lead
to oil leaks.
Structure the rotary sections of the motor so that it can never be touched during operation. Install a cover,
etc., on the shaft.
When installing a coupling to a servo motor shaft end, do not apply an impact by hammering, etc. The
encoder could be damaged.
Do not apply a load exceeding the tolerable load onto the servo motor shaft. The shaft could break.
Store the motor in the package box.
When inserting the shaft into the built-in IPM spindle motor, do not heat the rotor higher than 130°C. The
magnet could be demagnetized, and the specifications characteristics will not be ensured.
Always use a nonmagnetic tool (explosion-proof beryllium copper alloy safety tool: NGK Insulators, etc.)
when installing the built-in IPM spindle motor, direct-drive motor and linear servo motor.
Always provide a mechanical stopper on the end of the linear servo motor's travel path.
If the unit has been stored for a long time, always check the operation before starting actual operation.
Please contact the Service Center, Service Station, Sales Office or delayer.
Install the heavy peripheral devices to the lower part in the panel and securely fix it not to be moved due to
vibration.
CAUTION
Environment Unit Motor
Ambient temperature
Operation: 0 to 55°C (with no freezing),
Storage / Transportation: -15°C to 70°C
(with no freezing)
Operation: 0 to 40°C (with no freezing),
Storage: -15°C to 70°C (Note2) (with no freezing)
Ambient humidity
Operation: 90%RH or less
(with no dew condensation)
Storage / Transportation: 90%RH or less
(with no dew condensation)
Operation: 80%RH or less
(with no dew condensation),
Storage: 90%RH or less
(with no dew condensation)
Atmosphere Indoors (no direct sunlight)
With no corrosive gas, inflammable gas, oil mist, dust or conductive fine particles
Altitude
Operation/Storage:
1000 meters or less above sea level,
Transportation:
13000 meters or less above sea level
Operation:
1000 meters or less above sea level,
Storage:
10000 meters or less above sea level
Vibration/impact According to each unit or motor specification