Siemens SINUMERIK 840D sl Function Manual page 574

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2.2 Mode groups

The channels of a mode group operate in one mode.

A mode group is either in AUTOMATIC, JOG, or MDA mode.

Several channels of the same mode group cannot be in different modes at the same time. If

individual channels are assigned to different mode groups, a channel switchover activates

the corresponding mode group. This allows mode changes to be initiated via a channel

Modes in the mode group

The following operating modes are available:

• JOG in Automatic

Automatic processing of part programs.

– Part program test

– All channels of the mode group can be active at the same time.

JOG in AUTOMATIC is an extension of AUTOMATIC mode intended to simplify use. JOG

can be executed without leaving AUTOMATIC mode if boundary conditions so permit.

Jogging (manual axis traversal)

– The axes can be traversed manually with the handwheel or the traversing keys.

– Channelspecific signals and interlocks are effective in ASUBs and when a movement

is activated via IDS synchronized actions. Links are also taken into account.

– Every channel in the mode group can be active.

Manual Data Automatic (the NC blocks are entered via the operator panel)

– Restricted automatic execution of part programs and sections of part programs (can

be only one block or a sequence of blocks).

– Part program test

– A maximum of 1 channel per mode group can be active (applies only to TEACH IN)

– Axes can be manually traversed only in subordinate machine functions such as JOG,

REPOS or TEACH IN.

Basic logic functions: Mode group, channel, program operation, reset response (K1)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

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