Mitsubishi Electric CNC 700 Series Manual de instrucciones

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of Intel Corporation and its subsidiaries in the United States and other countries.

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MELDAS is a registered trademark of Mitsubishi Electric Corporation.

Other company and product names that appear in this manual are registered trademarks or trademarks of

their respective companies.

Introduction

This manual is called MITSUBISHI CNC 700 Series CONNECTION MANUAL and covers the

items related to installation, connection and maintenance of this NC unit. Read this manual

thoroughly before using. For safe use, fully understand "Precautions for Safety" on the next

page first.

Details described in this manual:

CAUTION

For items described as "Restrictions" or "Usable State" in this manual, the instruction

manual issued by the machine tool builder takes precedence over this manual.

Items that are not described in this manual must be interpreted as "not possible".

This manual is written on the assumption that all option functions are added. Confirm the

specifications issued by the machine tool builder before use.

Refer to the Instruction Manual issued by each machine tool builder for details on each

machine tool.

Some screens and functions may differ depending on each NC system (or version), and

some functions may not be possible. Please confirm the specifications before use.

The numerical control unit is configured of the control unit, display unit, operation board, servo drive

unit, spindle drive unit, power supply unit + driver, servomotor, and spindle motor, etc.

In this manual, the following items are generically called the "controller".

•Control unit

•Display unit

•Operation board

•Numerical control unit peripheral devices (input/output unit, safety unit)

In this manual, the following items are generically called the "drive unit".

•Servo drive unit

•Spindle drive unit

•Power supply unit + driver

In this manual, the following items are generically called the "motor".

•Servomotor

•Spindle motor

Precautions for Safety

Always read this manual and enclosed documents before installation, operation, maintenance

and inspection to ensure correct usage. Thoroughly understand the basics, safety information

and precautions of the devices before using.

This manual classifies the safety precautions into "DANGER", "WARNING" and "CAUTION".

DANGER

When the user could be subject to imminent fatalities or

serious injuries if handling is mistaken.

WARNING

When the user could be subject to fatalities or serious

injuries if handling is mistaken.

CAUTION

When the user could be subject to minor or moderate

injuries or the property could be damaged if handling is

mistaken.

Note that the items under " CAUTION" could lead to serious consequences as well

depending on the situation. Please follow all items listed in "Precautions for Safety" as they

are equally important.

For Safe Use

This product is not designed or manufactured on the assumption that the product will be

used for the equipment or systems that are to be subject to any fatal consequences.

Please inquire our customer service department about any particular usage other than the

normal usage as a machine tool.

1. Items related to prevention of electric shocks

WARNING

Do not open or remove the front cover while the power is ON or during operation. The high voltage

terminals and charged sections will be exposed, and this could result in electric shocks.

Do not remove the front cover even when the power is OFF, except for the wiring works or periodic

inspections. The inside of the controller and drive unit are charged, and this could result in electric

shocks.

Always wait at least 15 minutes after turning the power OFF. Then, check the voltage with a tester,

etc., before wiring works, inspections or connecting with peripheral devices. Failure to observe this

could result in electric shocks.

Earth ground the controller, drive unit and motor according to the local laws. (In Japan, ground the

200V Series input products with Class C or higher protective grounding and the 400V Series input

with Class D or higher protective grounding.)

All wiring works, maintenance and inspections must be carried out by a qualified technician. Failure

to observe this could result in electric shocks. Contact your nearby Service Center or Service Station

for replacing parts and servicing.

Wire the controller, drive unit and motor after installation. Failure to observe this could result in

electric shocks.

Do not operate the switches with wet hands. Failure to observe this could result in electric shocks.

Do not damage, apply excessive stress, place heavy things on or sandwich the cables. Failure to

observe this could result in electric shocks.

Insulate the power lead using a fixed terminal block. Failure to observe this could result in electric

shocks.

2. Items related to prevention of fire

CAUTION

Install the controller, drive unit, motor and regenerative resistor on non-combustible material.

Installation directly on or near combustible materials could result in fires.

If any malfunction in the unit is observed, shut off the power at the unit’s power supply side.

Continuous flow of large current could result in fires.

Install an appropriate no fuse breaker (NFB) and contactor (MC) on the power input section of the

drive unit and configure the sequence that shuts the power off upon drive unit’s emergency stop or

alarm.

When a breaker is shared for multiple power supply units, the breaker may not function upon

short-circuit failure in a small capacity unit. Do not share a breaker for multiple units as this is

dangerous.

Incorrect wiring and connections could cause the devices to damage or burn.

3. Items related to prevention of bodily injury or property damage

DANGER

When transporting or installing a built-in IPM spindle or linear servomotor, be careful so that your

hand or property will not be trapped in the motors or other metal objects. Also keep the devices with

low magnetic tolerance away from the product.

CAUTION

Do not apply voltages to the connectors or terminals other than voltages indicated in the connection

manual for the controller or specifications manual for the drive unit. Failure to observe this could

cause the devices to rupture or damage, etc.

Incorrect connections could cause the devices to rupture or damage, etc.Always connect the cables

to the indicated connectors or terminals.

Incorrect polarity (+ -) could cause the devices to rupture or damage, etc.

Persons wearing medical devices, such as pacemakers, must stay away from this unit. The

electromagnetic waves could adversely affect the medical devices.

Fins on the rear of the unit, regenerative resistor and motor, etc., will be hot during operation and for

a while after the power has been turned OFF. Do not touch or place the parts and cables, etc. close

to these sections. Failure to observe this could result in burns.

Do not enter the machine’s movable range during automatic operation. Keep your hands, feet or

face away from the spindle during rotation.

4. General precautions

Always follow the precautions below. Incorrect handling could result in faults, injuries or electric shocks, etc.

(1) Transportation and installation

CAUTION

Correctly transport the products according to the mass.

Use motor’s suspension bolts to transport the motor itself. Do not use it to transport the motor after

installation onto the machine.

Do not stack the products exceeding the indicated limit.

Do not hold the cables, shaft or detector when transporting the motor.

Do not transport the controller or drive unit by suspending or holding the connected wires or cables.

Do not hold the front cover when transporting the unit, or the front cover could come off, causing the

unit to drop.

Install on a non-combustible place where the unit’s or motor’s mass can be withstood according to

the instruction manual.

The motor does not have a complete water-proof (oil-proof) structure. Do not allow oil or water to

contact or enter the motor. Prevent the cutting chips from being accumulated on the motor as they

easily soak up oil.

When installing the motor facing upwards, take measures on the machine side so that gear oil, etc.,

will not enter the motor shaft.

Do not remove the detector from the motor. (The detector installation screw is treated with sealing.)

Do not allow foreign matters, especially, conductive foreign matters such as screws or metal chips,

or combustible foreign matters such as oil, to enter the controller, drive unit or motor. Failure to

observe this could result in rupture or damage.

Do not get on the product or place heavy objects on it.

Provide prescribed distance between the controller/drive unit and inner surface of the control

panel/other devices.

Do not install or operate the controller, drive unit or motor that is damaged or has missing parts.

Take care not to cut hands, etc. with the heat radiating fins or metal edges.

Do not block the intake/outtake ports of the motor with the cooling fan.

Install the controller’s display section and operation board section on the spot where cutting oil will

not reach.

CAUTION

The controller, drive unit and motor are precision devices, so do not drop or apply thumping vibration

and strong impacts on them.

Hard disk unit is a precision device, so do not drop or apply strong impacts on it.

Store and use the units according to the environment conditions indicated in each specifications

manual.

Securely fix the motor to the machine. The motor could come off during operation if insecurely fixed.

Always install the motor with reduction gear in the designated direction. Failure to observe this could

result in oil leaks.

Always install a cover, etc., over the shaft so that the rotary section of the motor cannot be touched

during motor rotation.

When installing a coupling to the servomotor shaft end, do not apply impacts by hammering, etc. The

detector could be damaged.

Use a flexible coupling when connecting with a ball screw, etc., and keep the shaft core deviation

smaller than the tolerable radial load of the shaft.

Do not use a rigid coupling as an excessive bending load will be applied on the shaft and could

cause the shaft to break.

Do not apply a load exceeding the tolerable level onto the motor shaft. The shaft or bearing could be

damaged.

Before using this product after a long period of storage, please contact the Mitsubishi Service Station

or Service Center.

Following the UN recommendations, battery units and batteries should be transported based on the

international regulations such as those determined by International Civil Aviation Organization

(ICAO), International Air Transport Association (IATA), International Maritime Organization (IMO)

and U.S. Department of Transportation (DOT).

(2) Items related to wiring

CAUTION

Correctly wire this product. Failure to observe this could result in motor runaway, etc.

Do not install a phase advancing capacitor, surge absorber or radio noise filter on the output side of

the drive unit.

Correctly connect the output side (terminal U, V, W). The motor will not run properly if incorrectly

connected.

Always install an AC reactor per each power supply unit.

CAUTION

Always install an appropriate breaker per each power supply unit. A breaker cannot be shared for

multiple power supply units.

Do not directly connect a commercial power supply to the motor. Failure to observe this could result

in faults.

When using an inductive load such as relays, always connect a diode in parallel to the load as a

noise countermeasure.

When using a capacitive load such as a lamp, always connect a protective resistor in series to the

load to suppress rush currents.

Do not mistake the direction of the surge

absorption diode to be installed on the DC relay

for the control output signal. If mistaken, the

signal will not be output due to fault in the drive

unit, and consequently the protective circuit,

such as emergency stop, could be disabled.

COM

(24VDC)

Control

output

signal

Drive unit Drive unit

COM

(24VDC)

Control

output

signal

Do not connect or disconnect the connection cables between each unit while the power is ON.

Do not connect or disconnect the PCBs while the power is ON.

Do not pull the cables when connecting/disconnecting it.

Securely tighten the cable connector fixing screw or fixing mechanism. Insufficient fixing could result

in deviation during operation.

Always treat the shield cables indicated in the Connection Manual with grounding measures such as

cable clamps.

Separate the signal wire from the drive line or power line when wiring.

Use wires and cables whose wire diameter, heat resistance level and bending capacity are

compatible with the system.

Ground the device according to the requirements of the country where the device is to be used.

Wire the heat radiating fins and wires so that they do not contact.

When using the RS-232C device as a peripheral device, caution must be paid for connector

connection/disconnection.

Always use a double-OFF type AC power supply switch on the device side, and connect/disconnect

the connector with the AC power supply on the device side OFF.

NC unit Device Switch

C socket

RS-232C

(3) Adjustments

CAUTION

Check and adjust programs and each parameter before starting operation. Failure to observe this

could result in unpredictable operations depending on the machine.

Do not make drastic adjustments or changes as the operation could become unstable.

(4) Usage

CAUTION

Install an external emergency stop circuit so that the operation can be stopped and the power turns

OFF immediately when unforeseen situation occurs. A contactor, etc., is required in addition to the

shutoff function mounted in the controller.

Turn OFF the power immediately if any smoke, abnormal noise or odor is generated from the

controller, drive unit or motor.

Only a qualified technician may disassemble or repair this product.

Do not alter.

Use a noise filter, etc. to reduce the effect of electromagnetic disturbances in the case where

electromagnetic disturbances could adversely affect the electronic devices used near the drive unit.

Use the drive unit, motor and each regenerative resistor with the designated combination. Failure to

observe this could result in fires or faults.

The combination of the motor and drive unit that can be used is determined. Be sure to check the

models of motor and drive unit before test operation.

The brakes (electromagnetic brakes) mounted in the servomotor are used for the purpose of

holding, and must not be used for normal braking. Also, do not run the motor with the motor brake

applied. Motor brake is used for the purpose of holding.

For the system running via a timing belt, install a brake on the machine side so that safety can be

ensured.

Be sure to confirm SERVO OFF (or READY OFF) when applying the electromagnetic brake. Also,

be sure to confirm SERVO ON prior to releasing the brake.

When using the DC OFF type electromagnetic brake, be sure to install a surge absorber on the

brake terminal.

Do not connect or disconnect the cannon plug while the electromagnetic brake’s power is ON. The

cannon plug pins could be damaged by sparks.

After changing programs/parameters, or after maintenance/inspection, always carry out a test

operation before starting actual operation.

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