Cnc programming – Lenze ETC Motion Control User Manual

Page 136

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CNC programming

G functions
G functions individual descriptions

3

3.2
3.2.2

l

136

EDSTCXN EN 2.0

3.2.2.49

G122 Configuring the effect of the traverse keys

G122 X

X

Traverse key mode

G122 is used to configure the effect of the traverse keys to the axis
movement. The value entered for X has the following meaning:

Mode 0: (Default) the traverse keys only have an effect in manual operation
and not in the automatic program. When a program or an individual block is
started, the modal offset is automatically reset, as described for G121.

Mode 1: In this mode, the traverse keys act as a modal offset to the
programmed actual position. They act like a coordinate shift. The traverse
movement takes place possibly as superimposed to a programmed
movement and can take place both in manual operation and in automatic
operation. The offset adjustment with the traverse keys can be transferred
with G121 into the actual position.

Mode 2: In manual operation, the traverse keys have a normal effect. The
resulting modal offset is automatically reset at the start of a program or an
individual block. In automatic operation, the axes can be traversed with the
traverse keys along a programmed movement. During this process, the
programmed speed is replaced by the speed set with the traverse key. This
also applies in the case of missing feed enable! If the speed is negative, the
movement takes place backwards on the programmed profile.

In path operation, the traverse key of the first axis (axis 0) is used. In this case,
both forward and backward movements are possible over the block limits.
The number of blocks via which it is possible to move backwards is limited
(MK_LAH_RUECKLAUFGRENZE). In route operation, the traverse keys of the
axes programmed in the current block are effective. In this case, it is only
possible to move forwards over the block limits and only if all axes have
reached their target point.

Mode 3: This is a combination of mode 1 and 2. The traverse keys are
effective both in manual operation and in automatic operation. The modal
offset is not automatically reset. In the event that the feed enable is missing,
it is possible to move forwards and backwards on the programmed profile
like in mode 3.

Mode 4: The traverse keys are effective in manual operation and in
automatic operation. However, the modal offset is automatically reset at
the next opportunity. The forward and backward movement on the
programmed profile is not possible.

After being switched on, the control has the state "G122 X0", provided
another mode was not selected in MK_VOREINSTELLUNG.

N33 G122 X1

Traverse keys act like a coordinate shift

Syntax

Meaning of the addresses

Explanation

Example

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