Mitsubishi Electric MDS-D-SPJ3 User manual

MELDAS is a registered trademark of Mitsubishi Electric Corporation.
Other company and product names that appear in this manual are trademarks or registered
trademarks of their respective companies.

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.
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.
When there is a potential risk of fatal or serious injuries if handling is mistaken.
When a dangerous situation, or fatal or serious injuries may occur if handling is mistaken.
When a dangerous situation may occur if handling is mistaken leading to medium or minor
injuries, or physical damage.
DANGER
WARNING
CAUTION

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, servomotor and spindle motor, etc.
In this section "Precautions for safety", the following items are generically called the "motor".
• Servomotor
• Linear servomotor
• Spindle 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
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 DangerElectricshock
risk
Danger explosive
Prohibited
Disassembly is
prohibited
KEEP FIRE AWAY General instruction
Earth ground
Important matters that should be understood for operation of this machine are indicated as a POINT
in this manual.
POINT

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 following the standards set forth by each country.
Wiring, maintenance and inspection work must be done by a qualified technician.
Wire the servo drive unit and servomotor 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.
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
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 servomotor, direct-drive motor and built-in IPM spindle motor uses permanent magnets in the
rotor, so observe the following precautions.
(1)Handling
• The linear servomotor, 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.
(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 servomotor.

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., etc so that it cannot be touched after installation.
Touching the cooling fan during operation could lead to injuries.
CAUTION