9
9-11
FM 351 Positioning Function Module
EWA 4NEB 720 6001-02
9.5 Incremental Operating Mode
With the incremental mode the FM 351 can:
Move the drive to absolute targets.
Move the drive relatively by a displacement in a specified direction.
The target position or the relative displacements are specified for the FM 351
as incremental dimensions.
Take note of the following requirements for the incremental mode:
The channel which is to be operated in the incremental operating mode
must be parameterized, that is, the machine data must be present.
The incremental dimensions must be present on the module.
The channel must be synchronized.
A valid start signal must be received.
The drive enable must be set.
When positioning on the Increment 254, the value must be present in the
relevant channel DB (TARGET_254) and on the FM 351.
When positioning on the Increment 255, the value and switchover and
switch-off differences must be entered in the relevant channel DB
(TARGET_255) and must be present on the FM 351.
Note
Only positive specified values are permitted for the specified displacement
for the incremental operating mode.
Definition
Requirements
Operating Modes and Settings
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