Product Information

• General Information
  • Safety Signal Words
  • Warranty
  • Website
  • ServAid
  • Safety Data Sheets MSDS/SDS
  • Country of Origin
  • Dimensional Drawings
• Overview
  • Applications
  • Main Components and Functions
  • Fuses and Power Consumption
  • Technical Product Data
  • Detailed Function Descriptions
    • DIN rails
    • Principal Schematics
    • Connectors in the User Area
    • Connectors in the Service Area
    • Connector for Status Indication
    • Outlets
    • Power supply

General Information

WARNING

Risk of Property Damage or Severe Injury

Ensure that you read, understand and follow all instructions before operating the tool. Failure to follow all the instructions may result in electric shock, fire, property damage and/or severe bodily injury.

• Read all Safety Information delivered together with the different parts of the system.

• Read all Product Instructions for installation, operation and maintenance of the different parts of the system.

• Read all locally legislated safety regulations regarding the system and parts thereof.

• Save all Safety Information and instructions for future reference.

Safety Signal Words

Warranty

• Product warranty will expire in 12+1 months after dispatch from Atlas Copco's Distribution Center.

• Normal wear and tear on parts is not included within the warranty.

  • Normal wear and tear is that which requires a part change or other adjustment/overhaul during standard tool maintenance typical for that period (expressed in time, operation hours or otherwise).

• The product warranty relies on the correct use, maintenance, and repair of the tool and its component parts.

• Damage to parts that occurs as a result of inadequate maintenance or performed by parties other than Atlas Copco or their Certified Service Partners during the warranty period is not covered by the warranty.

• To avoid damage or destruction of tool parts, service the tool according to the recommended maintenance schedules and follow the correct instructions.

• Warranty repairs are performed only in Atlas Copco workshops or by Certified Service Partners.

Atlas Copco offers extended warranty and state-of-the-art preventive maintenance through its ToolCover contracts. For further information, contact your local Service representative.

For electrical motors:

• Warranty will apply, only when the electric motor has not been opened.

Website

Information concerning our Products, Accessories, Spare Parts and Published Matters can be found on the Atlas Copco website.

Please visit: www.atlascopco.com.

ServAid

ServAid is a portal that is continuously updated and contains Technical Information, such as:

• Regulatory and Safety Information

• Technical Data

• Installation, Operation and Service Instructions

• Spare Parts Lists

• Accessories

• Dimensional Drawings

Please visit: https://servaid.atlascopco.com.

For further Technical Information, please contact your local Atlas Copco representative.

Safety Data Sheets MSDS/SDS

The Safety Data Sheets describe the chemical products sold by Atlas Copco.

Please consult the Atlas Copco website for more information www.atlascopco.com/sds.

Country of Origin

For the Country of Origin, please refer to the information on the product label.

Dimensional Drawings

Dimensional Drawings can be found either in the Dimensional Drawings Archive, or on ServAid.

Please visit: http://webbox.atlascopco.com/webbox/dimdrw or https://servaid.atlascopco.com.

Overview

• Applications
• Main Components and Functions
• Fuses and Power Consumption
• Technical Product Data
• Detailed Function Descriptions
  • DIN rails
  • Principal Schematics
  • Connectors in the User Area
  • Connectors in the Service Area
  • Connector for Status Indication
  • Outlets
  • Power supply

Applications

The MAIN SWITCH BOX is a power distribution unit for the following Atlas Copco controllers:

• PowerMACS 4000

• Power Focus 8 HV

• Power Focus S HV

• PF6 FlexSystem

Main Components and Functions

The MAIN SWITCH BOX has the following main components and functions:

• One main switch.

• One over-current protection.

• Up to six units can be connected.

Fuses and Power Consumption

The MAIN SWITCH BOX contain two 10A automatic fuses with slow characteristics, one for each side of three connectors. Up to three controllerss are connected to each fuse.

The maximum input fuse is 63 A.

Use the table below to calculate the power and current consumption. As the average currents depends on the tightening cycles in a specific installation, the values below must be seen only as typical examples.

¹ Average of the max 2s during a tightening.

² These numbers are based on a Main Switch Box connected to a 63 A input fuse with slow characteristics.

Technical Product Data

Technical Product Data can be found on either ServAid, or the Atlas Copco website.

Please visit: https://servaid.atlascopco.com or www.atlascopco.com.

Detailed Function Descriptions

• DIN rails
• Principal Schematics
• Connectors in the User Area
• Connectors in the Service Area
• Connector for Status Indication
• Outlets
• Power supply

DIN rails

The MAIN SWITCH BOX has some spare space on standard 35 mm DIN rails for customer specific additions, for example safety relay or power supply.

Principal Schematics

The Main Switch Box contains six 3-phase outlets, divided into two groups, where one group consists of J1, J2 and J4, and the other group consists of J3, J5 and J6. Each group of outlets are fused with 10A miniature circuit breakers (F1 and F2). The rotary main switch (S1) is rated for 63A, it is lockable and breaks all the phases.

Distribution Boxes can be connected to the Main Switch Box screw terminal outputs (1-10).

Connectors in the User Area

The MAIN SWITCH BOX has a user area and a service area.

Installations in the user area of the MAIN SWITCH BOX must be performed by skilled personnel.

The user area is reached by opening the front of the MAIN SWITCH BOX. When opening the front, all the connectors for the cabling to Atlas Copco units and status indication is accessible. The cabling is led out through the bottom of the MAIN SWITCH BOX.

1	J1 outlet, group 1
2	J2 outlet, group 1
3	J3 outlet, group 1
4	J4 outlet, group 2
5	J5 outlet, group 2
6	J6 outlet, group 2
7	Circuit breaker group 1
8	Circuit breaker group 2
9	X1: Connector for indication

Connectors in the Service Area

The MAIN SWITCH BOX has a user area and a service area.

WARNING

Risk of Severe Injury or Death

• Any work inside the service area must be performed by personnel that is approved to work with high voltage electrical installations.

The power cable between the MAIN SWITCH BOX and a controller must not be connected or disconnected when the power is switched on.

The service area of the MAIN SWITCH BOX can be opened to be able to connect the cables. This must only be done by authorized personnel and is done by loosing a number of screws at the front of the box.

The incoming cable, as well as cables connecting the MAIN SWITCH BOX to other units, is connected to screw terminals. The cables are fed through strain relief cord connectors.

Connector for Status Indication

The connector for status indication (X1) is located in the user area. The connector is of the type Phoenix MC 1.5/6-ST-3.81.

Installations in the user area of the MAIN SWITCH BOX must be performed by skilled personnel.

Outlets

The MAIN SWITCH BOX contains six 3-phase outlets; J1, J2, J3, J4, J5 and J6. The outlets are located in the user area.

Installations in the user area of the MAIN SWITCH BOX must be performed by skilled personnel.

Power supply

The Atlas Copco high voltage controllers are designed to be used together with the Main Switch Box or Main Switch Box II and the Distribution box or Distribution Box II units. If the controllers are not connected to a Main Switch Box or aMain Switch Box II, with the option of also connecting a Distribution Box or aDistribution Box II, the following configuration must be used:

• Install an external certified mains switch that disconnects all poles.

• Install a certified mains fuse for all poles or other certified overcurrent protection device.

• The incoming power must have the maximum fuse 10 A.

Main supply voltage: 3-phase 380–480 VAC ±10%, 50/60 Hz maximum 10 A.

Generally, the Atlas Copco High Voltage controllers should only be connected to 3-phase, grounded industrial mains. A PHASE/GROUND voltage of 300 VAC must not be exceeded. In general, theses requirements are met in TN (Terra/Neutral) or TT (Terra/Terra) mains.

An isolation transformer with gounded star point o the secondary winding should be connected to ungrounded mains (IT (Isolated/Terra) mains) or asymmetrically grounded mains with PHASE/GROUND voltage exceeding 300 VAC.

Connection example:

TN or TT mains are to be preferred.

The examples below show some additional power supply system types using up to 480 VAC (phase to phase) where an isolation transformer is required.

Examples

Example 1

Example 2

Example 3

Example 4

Example 5

Installation

• Installation Instructions
  • Installation Layouts
  • Mounting
  • Cabling
  • Grounding

Installation Instructions

• Installation Layouts
• Mounting
• Cabling
• Grounding

Installation Layouts

Standard cables come in lengths suitable for installations with rows of one MAIN SWITCH BOX plus one to six units in up to three rows. The number of units should be reduced in systems with large spindles that run high torque. Contact an Atlas Copco service technician for guidance.

Mounting

The MAIN SWITCH BOX can be mounted in any normal industrial environment without any extra enclosure, if local regulations do not prescribe otherwise.

When mounting the MAIN SWITCH BOX, consider the following:

• Mount the MAIN SWITCH BOX in a convenient place where it is easily accessible.

• It must be possible to open the MAIN SWITCH BOX when mounted, in order to get access to the fuses.

• Make sure the is enough space for the cables.

• The ambient temperature must not exceed 50°C.

• All units must be grounded using the potential equalization terminal. Connect an individual grounding wire (area minimum 2.5 mm²) from the units dedicated connection point to the equalization terminal. The grounding point should be the same as for the tool fixture. The purpose with the wires is to equalize potential deviations between different units in the system.

Cabling

WARNING

Risk of Severe Injury or Death

• Any work inside the service area must be performed by personnel that is approved to work with high voltage electrical installations.

WARNING

Risk of Electric Shock

• Always switch the power off on the units before connecting or disconnecting any power cables.

The incoming cable, as well as cables connecting the MAIN SWITCH BOX to other units, is connected to screw terminals inside the service area.

Cable requirements:

• Maximum cable area for the connections is 10 mm².

• The gauge of the cable connecting the MAIN SWITCH BOX to another unit must be at least the same as the incoming cable gauge.

• If the MAIN SWITCH BOX is connected to another unit, an external fuse is needed before the MAIN SWITCH BOX.

Grounding

WARNING

Risk of Severe Injury or Death

• Power from factory ground must be installed by a qualified electrician.

Each MAIN SWITCH BOX and controller must be grounded. On the US market, a 5.26 mm² (10 AWG) ground wire must be used, and in all other markets a 6 mm² must be used.

Grounding of the units:

1. Attach a ground wire from one of the threaded studs (A) at the bottom of the housing, to the mounting plate (B).

2. Attach a second grounding wire from the mounting plate (B), to the factory central grounding point.

The ground resistance between all system parts shall be < 0.1 Ohm. Depending upon the tool cable length and the number of spindles and how they are connected, there are two different alternatives how to meet this requirement. The QST tool cable ground resistance is <3 mOhm/m.

Alternative 1:

From the mounting plate to the spindle plate a 16 mm² ground wire is used. In the US a 13.29 mm² (6 AWG, equals 1.4 mOhm/m) wire is used. This will ensure proper grounding in all applications, independently of tool cable length and number of spindles.

Example 1:

One spindle with 60 m tool cable:

R_{TOOL CABLE} < 3 mOhm x 60 m = 180 mOhm

R_{GND WIRE} < 1.4 mOhm x 60 m = 84 mOhm

The resistance between mounting plate and spindle plate are these resistance in parallel:

R_TOTAL = R_{TOOL CABLE} // R_{GND WIRE} = 180 m Ohm // 84 mOhm = 57 mOhm

This is < 100 mOhm, which is OK.

Alternative 2:

The extra ground wire between the mounting plate and the spindle plate can be omitted in certain applications:

1. If the tool cable is maximum 30m.

2. If two or more spindles are used, and grounded together at the spindle side, the tool cable ground resistance is connected in parallel. In that case the resistance will be reduced to a safe level. The resistance between the different spindle plates must be added to this value. If the spindles are connected to the same metal fixture this value may be neglected as it will be very low. If ground wires are used between the spindle plates to connect the spindles together, this resistance must be added. (A 6 mm² wire = 3 mOhm/m).

This is illustrated in the following two examples:

Example 2:

One spindle with 30 m tool cable:

R_{TOOL CABLE} < 3 mOhm x 30 m = 90 mOhm

This is < 100 mOhm. There is no need for the extra ground wire.

Example 3

Two spindles connected with 1 m of 6 mm² ground wire between the two spindle plates and 60 m tool cable each:

R_{TOOL CABLE} < 3 mOhm x 60 m / 2 = 90 m Ohm (Two tool cables in parallel).

R_{SPINDLE PLATES} = 3 mOhm/m x 1 m = 3 mOhm

R_TOTAL = 90 + 3 m Ohm = 93 mOhm

This is < 100 mOhm. There is no need for the extra ground wire.

Operation

• Operating Instructions
  • General Service and Maintenance Safety

Operating Instructions

• General Service and Maintenance Safety

General Service and Maintenance Safety

WARNING

Test the emergency stop at regular intervals.

• Each emergency stop installation must be tested regularly to ensure maintained safety integrity. It is recommended that this test is included in the regular maintenance procedure for the system.

WARNING

Electrical Hazard

Disconnect from the power source during service, to avoid electric shock.

• The removal of the plug has to be such that the operator can check from any of the points to which he has access, that the plug remains removed.

Regular Cable Inspections

Regularly inspect the power cable and the tool cable. If the cables show any sign of damage, replace them.

Service

• Preventing ESD Problems

Preventing ESD Problems

The components inside the product and controller are sensitive to electrostatic discharge. To avoid future malfunction, make sure that service and maintenance is carried out in an ESD approved work environment. The figure below shows an example of an appropriate service work station.

Recycling

• Environmental Regulations
• Recycling Information

Environmental Regulations

When a product has served its purpose it has to be recycled properly. Dismantle the product and recycle the components in accordance with local legislation.

Batteries shall be taken care of by your national battery recovery organization.

Recycling Information