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Default setting for turning technology

The following machine data determines the function for turning technology:

● MD22550: $MC_TOOL_CHANGE_MODE = 0

Setting for a revolver

magazine: The new tool is changed immediately with the T function.

No additional M command is used. No distinction is made between Prepare tool change

and Execute tool change.

The function "Manual tools" is not enabled for this case.

● MD20310: $MC_TOOL_MANAGEMENT_MASK = 81400F (bit 16=1)

Bit 16 is used to set the tool programming type:

T = "x" with x as tool identifier

Tx, with x as location number of the magazine containing the tool used for machining.

When the function is active, T1 selects the tool in location number 1 instead of the tool with

identifier "1". Then the identifier of the tool in this location is ascertained (e.g. "FINISHING

TOOL"). The procedure is as if T="FINISHING_TOOL" had been programmed.

If T = location number, no tool need actually be stored in the location.

● MD10717: $MN_T_NO_FCT_CYCLE_NAME = TCHANGE

Name of tool change cycle for T function replacement.

For a description, refer to Section Example: Tool change cycle for turning machine

(Page 310)

ISO dialects in turning technology:

Default setting for programming the tool offset:

MD10888 $MN_EXTERN_DIGITS_TOOL_NO = 0

MD10889 $MN_EXTERN_DIGITS_OFFSET_NO = 2

MD10890 $MN_EXTERN_TOOLPROG_MODE = 4

Programming T101 and T0101 leads to the same result: T1 H01

References: SINUMERIK 828D / 840D sl Function Manual: ISO dialects

● The description "Substitution by a replacement cycle for a tool selection block" is valid for

the ISO mode (G291).

● The description "Tool change and tool offsets" is valid when programming the tool offset.

Configuring the magazine

An NC POWER ON is needed after changing the magazine configuration. The changed

configuration is only displayed after restarting the NC.

Siemens SINUMERIK 828D Commissioning Manual

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