Appendix: Action Types For The Positioning Sequence Control - Lenze 8400 Software Manual

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Appendix: Action types for the positioning sequence control

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5 Appendix: Action types for the positioning sequence control
For the positioning sequence control, the L_Sequencer_1 FB is used. This FB processes a positioning
program on the basis of a sequence table (also referred to as "sequencer"), which can contain up to
100 references to so-called "Actions".
Overview
Action type
Homing
Positioning
Branch
Variable branch
Switch
Set counter
Count
Wait
Standby*
End
You can find detailed information on the action types in the following subchapters.

Tip!
For users switching from 9300 to 8400:
Whereas with the Servo Drive 9300 it was usual to query several digital inputs in succession
to then obtain a specific positioning process, for 8400 and 9400 the
action can be used.
42
Info
Number
of actions
available
1 Start of homing
50 Execution of a profile
16 Conditional or unconditional branch
(jump)
2 Variable branch as a function of the
input value of wBranch1 or
wBranch2.
16 Switching of digital output signals
5 Setting one of the 5 counters
available to a specific starting value
8 Counting processes including
comparison operation
8 Entering waiting times into the
program flow
5 Temporary activation of a setpoint
follower
1 Determination of the program end
Lenze · 8400 "Position Sequencer" technology application · Software manual · DMS 1.0 EN · 07/2014 · TD05
These action types are "active".
When these action types are
processed, the respective basic
function is triggered via
corresponding control outputs.
These action types are "passive".
When these action types are
processed, the "Stop" operating
mode are active, and a brake will be
applied, if available.
* The "Standby" action type is active
when a setpoint has been set for the
speed follower or a setpoint position
is transferred to the
LS_MotionControlKernel SB when
"Position follower" has been
selected.
"Variable branch"