7.1 Connection

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7 Aspect of connection and function (CAx)
7.2 Function
7.3 Examples
7.4 Illustration of circuit diagram symbols

Connection

The term connection is used for various meanings.

1. For a real connection of a line, for different media e.g. water, gas, electricity, at a connection point.

2. For the logical, symbolic connection of lines to drawing symbols in documentation.

This area is used for the general description of real connections.

A connection identifier is assigned to uniquely identify a real connection.

Each real connection must be described individually.

Recommendation for creation the connection identifier:

Unless you have an identifier specification from your design systems, the best way to number the connections of the equipment is as follows:

From top left to bottom left from left to right, from back to front (function related). Very often it happens in electrical engineering that several real connections are combined to one logical connection see examples:

Example circuit breaker logical 1 Connection

2 real connections

Line and phase bridge connection with

1 actuation.


Bild 1 CAx-Anschluss Beispiel realer Anschluss 1.jpg

Power contactor logical 1 connection

2 real line connections with

1 actuation.



Bild 1 CAx-Anschluss Beispiel realer Anschluss 2.jpg

Figure 1: CAx connection example real connection

Figure2: CAx connection example real connection



Figure 3: CAx connection example real connection

Auxiliary switch block: Screw connection

Logical 1 connection

2 real connections with

1 actuation

connection Spring-cage connection

Logical 1 connection

2 real connections with

2 actuations

Bild- CAx-Anschluss Beispiel realer Anschluss 1.png


Bild- CAx-Anschluss Beispiel realer Anschluss 3.png

Bild- CAx-Anschluss Beispiel realer Anschluss 2.png


In the Functions section, the logical connections are then described according to their use in the CAE documentation and referenced to the connections described here in this block via the connection identifier.

Features real connection

Level
Species
Structure item Name
Application, meaning Function for CAx and process
1
C

number of connections

Specification of the number of existing real connections

Calls the block to describe a real connection according to the number

1/2
B

Connection

Block

3
M

Connection identifier

Clear designation of a connection point (connection)

For further information see: 5.1

3
M

Connection direction

Specifies the direction from which the wiring meets the terminal in standard installation use

Values:

from behind

from below

from above

from front

from left

from right

3
M

Position (in mm)

Specification of the physical position of the connection

For further information see: 7.1_Connection#Explanation of the position of the connection

3
M

Connection removable

Indication whether the connection can be removed without disconnecting the wiring.

Important for the specification of the connection symbol

3
M

Connection group

Alphanumeric designation, if several connections are to be managed mechanically or electrically together. Example mechanical: multipole connector or a terminal strip, electrical: infeed, outgoing feeder, assignments of systemic connection adapters or connection group assignments, e.g. overcurrent relay. Example: "X1

Helps the system/designer to assign and arrange the connections.

3
C

Number of part relationships

See chapter 6.1_Parts Relations

3
P

Type of connection

Call Type of connection polymorphic

Connection type-specific call of description blocks

4
W

Connection plug

Identification of the polymorphic block

For the following block see 7.1_Connection#Connection plug


4
W

Single electrical connection

Identification of the polymorphic block

For the following block see 7.1_Connection#Single electrical connection

4
W

Single hydraulic connection

Identification of the polymorphic block

Block not further specified

4
W

Single connection pneumatic

Identification of the polymorphic block

Block not further specified

4
W

Individual connection Process engineering

Identification of the polymorphic block

Block not further specified



Connection plug

Level
Species
Structure item Name
Application, meaning Function for CAx and process
1
B

Connection plug

Block


2
M

Design of the connector

Describes the type of connector design to plug in

Is required for project planning and for assessing the connector.

Values: female, male, mixed

2
M

Connector type

Specification of a standardized connector design

Is used to clarify the fit of the plug connection.

2
M

Connection position

Angle of rotation of the connector between its home position and the assembly position

Is used for the conversion of positions during the wiring routing of standard connectors

2
M

Description of the connection position

Possibility for additional textual information on the connection position

Instructions for use can be given here

2/3
C

Number of the plug connection

Cardinal call of the description blocks for the connection e.g. with possible

Calls up the block for the description of the mechanics of an electrical connection according to the number

3
B

Plug connection

Block for describing the electrical connection

Description of electrical characteristics for connection

4
M

Connection identifier

Clear designation of a connection point (connection)

Is required for wire prefabrication

4
M

Position of the plug connection (in mm)

Specification of the physical position of the plug connection

For further information see: 7.1_Connection#Explanation of the position of the connection

4
M

Design of the plug connection

Description of the plug connector design according to the delivery condition

Values: plug socket, plug pin, plug pin or socket, optical plug contact, plug housing, plug contact tongue


Is used to clarify the fit of the plug connection.


4
M

Type of plug connection

For the description of physically different plug connections.

Values: electrical, hydraulic, mechanical, optical, pneumatic, process engineering

Approach for the further description of mechatronic connectors.

(To be expanded)

4
C

Number of parts relationships

Only if, depending on the plug connection, other additional parts are required than already defined on the article level under part relationship.

See chapter 7.1

Calls the block for the part relationship description according to the number. Additional systemic parts required for the connection can be described here

Single electrical connection

Level
Species
Structure item Name
Application, meaning

Function for CAx and process

1
B

Single electrical connection

Block

Block and collection of characteristics for the description of individual electrical connections

2
B

Wiring

Block for describing the possible wiring

Enables a machine- readable wiring description

3
M

Material of the electrical connection

Describes the material of the surface of the connection

Is required for project planning and for the assessment of the contacting.

3
M

Bridge connection

A bridge connection can only be contacted via a special systemic electrical bridge, not via a wire.

Is used for detail clarification during wiring routing.

3
M

Colour of the electrical connection

Colour of the material enveloping the connection

Additional marking option for differentiation in the process

3
C

Number of versions of the electrical connection

Cardinal call of the description blocks for the connection e.g. with possible

Calls the block for the execution description of the mechanics of an electrical connection according to the number

3/4
B

Design of the electrical connection

Block for describing the electrical connection

Block for describing the electrical connection

4
M

Stripping length

Required length of stripping to ensure adequate contact

Is required for wire prefabrication

4
M

Permissible conductor types

Approved connectable conductor types with intended wire end treatment values:

solid conductor

stranded conductor

fine-stranded conductor with splice protection

fine-stranded conductor without splice

protection

Flat rail

Flat belt

phase busbar (new for 11.0)

Describes the types of conductors that can be used for wiring preparation


4
M

Off-drive size

Size and design of the operating tool for the connection

For use with automatic wiring to change the tool

4
M

Tightening torque

Specification of the required torque as min. / max. specification

If there is only one value, it must be entered in both fields.

Is required for safe contact making and can also be logged by screwing machines

4
M

Actuation vector

Position and direction for operation with a tool

Is required for automatic screwing

5
B

Cross section of the conductor wire (mm²)

Block for describing the usable conductor in mm²

Is required for wiring logistics and wire prefabrication

6
M

Fine-wire conductor cross-section with splice protection (mm²)

Standard cross-sectional absorption capacity of the clamping point as min. / max. Specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

Fine-wire cross-section without splice protection (mm²)

Standard cross-sectional absorption capacity of the clamping point as min. /max. Specification for the conductor type without final treatment

Is required for wiring logistics and wire prefabrication.

6
M

Multi-wire conductor cross-section (mm²)

Standard cross-sectional absorption capacity of the clamping point as min. /max. Specification for the conductor type without final treatment

Is required for wiring logistics and wire prefabrication

6
M

Solid conductor cross-section (mm²)

Standard cross-sectional absorption capacity of the clamping point as min. /max. Specification for the conductor type without final treatment

Is required for wiring logistics and wire prefabrication

6
M

Total maximum of the cross-section (mm²)

Specification of the maximum possible cross-section in (mm²)

Is required for wiring logistics and wire prefabrication.

6
M

Number of fine-stranded conductors without splice protection

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication.

6
M

Number of stranded conductors (mm²)

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

6
M

Number of solid conductors (mm²)

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

6
M

Number of fine-stranded conductors with splice protection (mm²)

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

Note Block Cross-section of the conductor wire (mm2): describe not applicable number with 0

5
B

Cross section of the conductor wire (AWG/KCMIL)

Block for describing the usable conductor in AWG/KCMIL (American standard)

Is required for wiring logistics and wire prefabrication.

6
M

Total maximum of the cross-section

Specification of the maximum possible cross-section in AWG/KCMIL

Is required for wiring logistics and wire prefabrication

6
M

min. fine wire cross-section with splice protection (AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

max. fine wire cross-section with splice protection (AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

min. fine wire cross-section without splice protection (AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

min. stranded wire cross section(AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

max. stranded wire cross section(AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication.

6
M

Number of solid conductors

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication.

6
M

min. solid wire conductor cross section(AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication.

6
M

max. solid conductor cross section(AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication.

6
M

max. fine wire cross-section without splice protection (AWG/KCMIL)

Standard cross-sectional absorption capacity of the clamping point as minimum specification for the conductor type with final treatment

Is required for wiring logistics and wire prefabrication

6
M

Number of stranded wires Manager (AWG/KCMIL)

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

6
M

Number of fine wires conductor with splice protection (AWG/KCMIL)


Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

6
M

Number of fine wires conductor without splice protection (AWG/KCMIL)

Number of clampable wires per real connection

Is required for wiring logistics and wire prefabrication

Note Block Cross section of the conductor wire (AWG/KCMIL): Describe not applicable number with 0

5
B

Flat conductor connection

Block for describing possible flat conductor connections

Is required for wiring logistics and wire prefabrication

6
M

Minimum cross section (mm2)

Information about the required minimum cross-section for the rated current

Is required for rail prefabrication.

6
B

Strip connection

Block for describing a strip connection

Is required for wiring logistics and strip prefabrication

7
M

Connection of the Strip

Textual application note on strip treatment

Can be used for technical specifications for strip prefabrication

7
M

Hole pattern

Specifying an identifier for the hole pattern Graphical indication of breakthroughs in the strip

Is required for strip preproduction

7
M

Number of stripes

Indication of how many stripes can be connected per connection

Is required for strip preproduction

7
M

Number of slats

Indicates how many slats the conductor has.

Is required for strip preproduction

7
M

Thickness of the slats (mm)

Specification of the thickness of a lamella in mm

Is required for strip preproduction

7
M

Width of the slats (mm)

Specification of the width of a slat in mm

Is required for strip preproduction

6
B

Bar connection

Block for describing a bar connection

Is required for wiring logistics and bar prefabrication

7
M

Hole pattern

Specifying an identifier for the hole pattern

Graphical indication of openings in the bar

Is required for bar prefabrication

7
M

Material of the suitable bar


Information about the material of the bar

Is required for procurement and bar prefabrication

7
M

Number of bars

Indication of how many bars can be connected per connection

Is required for procurement and bar prefabrication

7
M

Bar surface

Information about the surface treatment of the bar

Values: black painted, bright, tinned

7
M

Bar width (mm)

Specification of the width of a bar in mm

Is required for procurement and bar prefabrication

7
M

Bar thickness (mm)

Specification of the thickness of a bar in mm

Is required for procurement and bar prefabrication

2
C

Number of rated values of device functions

Number of rated values of device functions

Indicates how many rated value sets are available for the connection

2/3
B

Rated value for connection

Block Rated value for the connection. Possibility to specify rated values for the connection

Helps the system/designer to assign and arrange the connections

4
M

Rated insulation voltage

specifies the maximum value of the electrical voltage for the connection

Helps the system/designer to assign and arrange the connections

4
M

Rated uninterrupted current

is the current that the connection can carry in uninterrupted duty

Helps the system/designer to assign and arrange the connections

4
M

Rated voltage

specifies the maximum value of the electrical voltage of the connection in normal operation

Helps the system/designer to assign and arrange the connections

4
M

Rating according to

Possibility to specify a reference standard or test

Helps the system/designer to assign and arrange the connections

Explanation of the position of the connection

The feature indicates the physical position (AXIS 1D Data Type) of the respective connection on the device and the direction from which the conductor is inserted.

The point is in the middle of the connector funnel opening and at the maximum rear point that the connector can reach. The point is specified in mm using the x/y/z-coordinates in relation to the reference point of the device. The alignment is described by an additional unit vector.

The Connection direction feature is intended for use in line routing. The connection direction indicates the preferred direction from which the conductor runs on the connection from the installation point of view. A standard preferred direction for normal use must be specified here.


  • from behind
  • from below
  • from above
  • from front
  • from left
  • from right


CAx connection example Connection direction.JPG

Figure 4: CAx connection example Connection direction


Attention Pictures no longer match the connection direction


- <POINT>

° <POINT X="92.5" />

° <POINT Y="43.3" />

° <POINT Z="157.2" />

° </POINT>

- <DIRECTION>

° <DIRECTION X="0" />

° <DIRECTION Y="0" />

° <DIRECTION Z="-1" />

° </DIRECTION>
° </DIRECTION>


Figure 5: CAx connection example Connection direction in XML



Electrical connection points for real connections, bridges and accessories


  • Electrical connection points for bar connection
    • o for device screw connections for bars, cable lugs and conductor strips, the position of the connection is determined at the center of the screw connection at the level of the contact surface on the device.


Example:


CAx connection example connection point bars.JPG


Figure6: CAx connection example connection point bars


  • in the case of bridges/cross-connectors, test probes and similar accessories are maintained in the center of the contact hole. The corresponding contact point on the accessory is positioned so that the components fit together.



Example:


CAx connection example connection point Accessories.JPG


Figure 7: CAx connection example connection point Accessories


  • Electrical connection point for bolt connection
    • The point lies on the contact surface "down to center of the bolt". The corresponding contact point on the accessory is positioned so that the components fit together.


Example:


CAx connection example connection point bolt.JPG


Figure 8: CAx connection example connection point bolt



  • • Electrical connection points of connectors, standard faces (M12, RJ45)
    • The points are recorded on the middle of the front of the connectors. The corresponding point of the socket is recorded in such a way that the points match when assembled


Example:


CAx connection Example connection point connector.JPG
Figure 9: CAx connection Example connection point connector

Operating element of a connection

  • Mechanical actuation points for screws etc. are characterized by the features: Actuation vector

Tightening torque and output size described. Their physical position is displayed with the (AXIS 1D data type) and the direction with a unit vector.

  • The points are recorded centrally on the contact surface between the actuating element and the tool.
  • Example:
CAx connection Example of actuation point at the screw head.JPG


Figure 10: CAx connection Example of actuation point at the screw head


  • If the point cannot be specified reliable due to the connection equipment or the delivery condition, the center must be specified from where a screwdriver has to move into the equipment in order to achieve the output of the screw head. The points are recorded centrally of the housing above the point of contact between the actuating element and the tool.




  • Example:


Bild- CAx-Anschluss Beispiel Betätigungspunkt über dem Schraubenkopf auf Höhe Gehäuseoberfläche.png


Figure 11: CAx connection Example of actuation point above the screw head at the level of the Housing surface


  • Mechanical actuation points for push-in connection


CAx connection Example of actuation point for push-in connection.JPG


Figure 12: CAx connection Example of actuation point for push-in connection


  • Mechanical actuation points for spring balancer connection


CAx connection Example of actuation point for spring balancer connection.JPG


Figure 13: CAxconnection Example of actuation point for spring balancer connection


________________________________________