Mitsubishi Electric MELDAS C6 Manuale utente

CNC

C6/C64

CONNECTION AND MAINTENANCE MANUAL

BNP-B2255E(ENG)

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MELDAS and MELSEC are registered trademarks of Mitsubishi Electric Corporation.

Other brands and product names throughout this manual are trademarks or registered trademarks of their

respective holders.

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Introduction

This manual is called MELDAS C6/C64 CONNECTION AND MAINTENANCE 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 following manuals can be used for reference:

MELDAS C6/C64/C64T Instruction Manual ･･･････････････････････ BNP-B2259

MELDAS C6/C64/C64T PLC Interface Manual ････････････････････ BNP-B2261

MELDAS C6/C64/C64T Parameter Manual ･･･････････････････････ BNP-B2267

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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.

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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/close 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 servo 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, servo drive unit and servomotor 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, servo drive unit and servomotor 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.

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2. Items related to prevention of fire

CAUTION

Install the controller, servo drive unit, servomotor 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 input power side.

Continuous flow of large current could result in fires.

Install an appropriate NFB (circuit breaker) and MC (contactor) on the power input section of the

servo 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 servomotors or other metal objects. Also keep the

devices with low magnetic tolerance away from the product.

CAUTION

Do not apply voltages to other than those indicated in the connection manual for the controller or

specifications manual for the servo drive unit. Failure to observe this could cause the devices to

rupture or damage, etc.

Incorrect terminal connections could cause the devices to rupture or damage, etc.

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 servomotor, 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.

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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 weights.

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

servomotor 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 servomotor.

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

cables.

Do not hold the front cover when transporting the servo drive 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 weight can be withstood according to

the instruction manual.

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

to contact or enter the motor. Prevent the oil-soaked cutting chips from being accumulated on the

motor.

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 servomotor. (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, servo drive unit or servomotor.

Failure to observe this could result in rupture or damage.

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

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

panel/other devices.

Do not install or operate the controller, servo drive unit or servomotor that is damaged or has missing

parts.

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CAUTION

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

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

Install the controller’s display unit and operation board unit on the spot where cutting oil will not

reach.

The controller, servo drive unit and servomotor 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 servomotor 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 spindle motor cannot be

touched during motor rotation.

When using a coupling connection 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).

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(2) Items related to wiring

CAUTION

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

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

the servo drive unit.

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

incorrectly connected.

Always install an AC reactor per each power supply unit.

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 servomotor. 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

Servo drive unit

COM

(24VDC)

Servo drive unit

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 dislocation during operation.

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

as cable clamps.

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CAUTION

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.

unit Device Switch

C socket

RS-232C

(3) Adjustments

CAUTION

Check and adjust programs and each parameter before starting operation. Unpredictable

operations could occur 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 power will turn OFF followed by the immediate

operation stop. 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, servo drive unit or servomotor.

Only a qualified technician may disassemble or repair this product.

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