Mitsubishi X250 Spezifikationen PDF herunterladen (Seite 24)

Preparation for Machine Installation

•

Check each item, and make sure that no item or order is overlooked

• It normally takes one to two months for tooling delivery, so please

place orders as early as possible

• If there is any possibility of radio disturbance, refer to the "EDM

Radio Disturbance and Countermeasures", and investigate the

state beforehand. Class C grounding is recommended

• Prepare the following air source: 0.5 to 0.7MPa, flow rate of

27R/min or more (36R/min or more when using a built-in spindle,

0.6MPa or more when using EROWA tooling specifications)

• Prepare an air hose with inner diameter of φ9 to 10mm (The

coupler socket 20SH is enclosed with the machine)

• The standard EA8, EA12V and EA28V specifications do not

require an air source, but the above-mentioned air supply must be

prepared when using the optional built-in C-axis, etc

• Confirm the routes inside and outside the factory before delivery

• The applications must be filed before the EDM is installed. The

required applications differ according to the region, so contact your

nearest fire department for details

Checklist for machine installation

Oil for EDMs Installation conditions

ENEOS Metal Work EDF-K2

※Contact the manufacturer for the Material Safety Data Sheet.

Product brand

Item

Density g/cm

(@15°C)

Ignition point °C (PM)

Kinematic viscosity mm

/s (@40°C)

Appearance

Dielectric fluid example (ENEOS Metal Work EDF-K2)

■Installation location

■Grounding work

■Shielded room

3. Preparation of tooling and electrode

4. Training of programmers and operators

5. Confirmation of foundation work and power supply work

6. Confirmation of delivery route

1. Determining the machining details

2. Preparation of installation fixtures

1） Determination of tooling and electrode

2） Order, preparation or manufacture

1) Confirmation of floor area

Confirmation of environment (constant pressure, dust-proof room, measure



for radio disturbance, prevention of external noise)



3) Confirmation of foundation floor

4) Foundation work

1) Traffic restrictions to factory

Road width

Entry road

2) Factory entrance and width of gate in factory m

Factory building entrance dimensions (height x width) m × m

1) Select the programmers and operators

2) Apply for training seminars

1) Determine the workpiece

2) Determine the machining site

3) Determine the pre-processing site

4) Determine the post-processing site

1) Plan the installation fixtures

2) Prepare or manufacture the fixtures

7. File applications to fire department

1） Confirm the dielectric fluid amount

2） File applications to fire department (EDMs already installed must also

be filed.)

・Application for "Facility using fire" (fluid amount less than 400

R)

・Application for "Low volume hazardous material storage and handling

site" (fluid amount more than 400

R and less than 2,000R)



・Application for "General handling site" (fluid amount 2,000

R or more)

5）

Confirmation of power supply (including grounding work), air source

and 

other work completion

Clear and colorless

Select a place that satisfies the following conditions for

installing the EDM.

(1) Room temperature

* Recommended room temperature: 20±1°C (68±2°F)

* Usable temperature range 5 to 35°C (41 to 95°F)

Fluctuation of the temperature will directly affect the

machine accuracy, so to maintain accuracy, select a place

with little temperature fluctuation. Note that the machining

accuracy may be adversely affected in an environment

where the temperature fluctuates by 3°C (5.4°F) or more

within 24 hours, or 1°C (1.8°F) or more within one hour.

Make sure that the machine body is not directly subject to

the airflow from air conditioners or to direct sunlight.

(2) Atmosphere

Install the EDM in an environment with no corrosive gases,

such as acid or salt, or mist, and with low levels of dust.

Abrasive powder from grinding machinery can adversely

affect the machine's sliding sections and drive sections

such as the ball screws, so pay special attention to the

installation place. (Separate the EDM from the grinding

machinery, install in a separate room, etc.)

(3) Humidity

Within 35 to 75%RH (with no dew condensation).

(4) Machine heating value

Use the equipment capacity to calculate the EDM's heating

value required for designing a constant-temperature room.

The above value is a guideline. Consult with the constant-

temperature room maker for details.

(5) Floor vibration

EA Series (EA8, EA30, EA40, EA50), EA12V-A, EA28V-A

* Select an installation floor where vibration and impact will

not be conveyed.

As a reference, the vibration level should have a maximum

amplitude of 5µm or less at a frequency of 10 to 20[Hz].

EA8PV-A, MA2000, VH10

* Select an installation floor where vibration and impact will

not be conveyed.

As a reference, the vibration level should have a maximum

amplitude of 2µm or less at a frequency of 10 to 20[Hz].

* Consult with the contractor or vibration measuring

instrument maker for details on the measuring method.

(6) Foundation

Install the EDM on a floor which can withstand the weight of

the equipment. A concrete floor 400mm (16in) or thicker is

recommended.

(7) Room construction

The room where the EDM is to be installed must be a non-

flammable or fire-proof structure.

Contact your local fire department for details.

(8) Ventilation of combustible vapors

Install a ventilator to effectively remove combustible vapors

and fine powders.

The EDM must always be grounded to prevent external noise,

prevent radio disturbance, and prevent earth leakage.

Class C grounding (grounding resistance 10Ω or less) as set

forth in the Electric Facility Standards is recommended for the

EDM.

(1) Class C grounding (isolated) is recommended (dedicated

grounding for EDM).

Always use one-point grounding (Fig. 1).

Note) Provide isolated grounding for each machine.

(2) Common grounding can be used if noise from other

equipment will not enter through the common grounding.

The grounding cable must be connected independently up

to the grounding station (Fig. 2).

(3) Use a 14mm

grounding wire.

Provide a shielded room if the EDM affects televisions or other

communication systems in the area. Observe the following

points when installing the EDM in the shielded room.

(1) Ground the EDM in the shielded room (Fig. 3).

(2) If the EDM cannot be grounded in the shielded room,

connect the EDM's grounding cable to the shielded room's

grounding terminal (through-bolt) as shown in Fig. 4.

(3) Consult with your Mitsubishi Electric sales office or dealer

for details on setting up a shielded room.

Heating value (kW)

= Equipment capacity (kVA) x 0.6

Example: For EA12VM + FP80V, 7.0kVA x 0.6 = 4.2kW

Grounding for other

equipment

Control unit

Machine

body

Machine

body

Shielded room

Control unit

Shielded room

Machine body

Control unit

Machine body

Fig. 1 Fig. 2

Fig. 3 Fig. 4

Through-bolt

Within 1m

Dielectric fluid is regulated by related ordinances as a

"Hazardous Class 4 No. 3 petroleum". The designated quantity

set forth by ordinances is 2,000R (depending on the country

and region).



When handling hazardous materials, such as an EDM and

cutting oil, which have a flash point between 70 and 200°C in

the same building, applications must be filed to the fire

department according to the total amount handled.



1. When the total amount of hazardous materials exceeds 2,000R,

file an application for a "General Handling Site" permit.



2. When the total amount of hazardous materials is between

400R or more and less than 2,000R, file an application for a

"Low-volume Hazardous Material Storage and Handling Site".



3. When the total mount of hazardous materials is less than

400R, file an application as a "Facility using fire".



Refer to the "EDM Fire Prevention Guidelines" and instruction

manual for details relating to EDM dielectric fluid and fire safety

laws.

Sliding surface lubricant (Mobil DTE26 "Exxon Mobil")

Mobil DTE26

Product brand

Item

Density g/cm

(@15°C)

Ignition point °C (PM)

Kinematic viscosity mm

/s (@40°C)

Appearance

※Contact the manufacturer for the Material Safety Data Sheet.

Table of sliding surface lubricant properties

Table of dielectric fluid properties

0.881

204

68.0

Yellow

Shell Paraol 250

※Contact the manufacturer for the Material Safety Data Sheet.

Dielectric fluid example (Showa Shell Sekiyu Shell Paraol 250)

0.797

2.42

Clear and colorless

Product brand

Item

Density g/cm

(@15°C)

Ignition point °C (PM)

Kinematic viscosity mm

/s (@40°C)

Appearance

0.77

2.2

Always use dielectric fluid which has a flash point of 70°C or more.

Prepare the following dielectric fluid when operating the EDM.

45 46

Product Line-up

Machining Samples

Total Solutions

Machine Specifications

and Options

Advance Series

Functions and Features

EA Series Functions

and Features

Advance Series

Product Introduction

MA, EA Series

Product Introduction

Advance Control Unit

Tooling

64-bit Control Unit

Power Supply/Control

Specifications

Preparation for

Machine Installation

Precautions

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