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HEIDENHAIN TNC 407 (243 020) Technical Manual User Manual

Page 372

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01.98

TNC 407/TNC 415/TNC 425

15 Tool changer

4-247

Other PLC operands which are used:

Marker

Function

Set

Reset

M2046

Strobe signal T code (P code) with TOOL CALL

NC

NC

M2047

Strobe signal T code (P code) with TOOL DEF

NC

NC

M2093

Another T code (P code) follows with TOOL CALL

NC

NC

M2403

Special tool called (TOOL CALL)

NC

NC

M2483

Feedback T code (P code) with TOOL CALL

PLC

PLC

M2484

Feedback T code (P code) with TOOL DEF

PLC

PLC

M2600

Sequence of tool number or

PLC

PLC

pocket number transfer (M2093 = 1)

M2601

Special tool to original pocket despite

PLC

PLC

variable pocket coding

W262

Pocket number

W264

Tool number

Machine parameters used:

MP7260 = 90

Number of tools in tool table

MP7261 = 12

Number of pockets in tool magazine

MP7264 = 1

Number of pockets vacant beside special tool

MP7480.0 = 4 Output of pocket number and tool number with every TOOL CALL block
MP7480.1 = 4 Output of pocket number and tool number with every TOOL DEF block

The sequence diagram for this tool changer is subdivided into modules.

List of modules (subroutines):

-

TOOL DEF

Search tool and load in GRE1

-

TOOL CALL

Automatic tool-change

-

STANDBY

Search tool and load in GRE1

-

STANDBY BACK

Return tool from GRE1 to magazine

-

MANUAL TOOL IN

Manual tool follows Normal or Special tool

-

MANUAL TOOL OUT

Normal or Special tool follows Manual tool

-

MANUAL OUT/IN

Manual tool follows Manual tool

-

CHANGE

Take old tool out and put new tool in

-

COMPUTE SHORTEST PATH

-

COMPARE P-CODE WITH ISTREG

-

COMPARE GRE1 WITH ISTREG