Lenze 8400 - 5 Appendix: Action Types for the Positioning Sequence Control

5 Appendix: Action types for the positioning sequence control
42 Lenze · 8400 "Position Sequencer" technology application · Software manual · DMS 1.0 EN · 07/2014 · TD05
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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
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 "Variable branch
"
action can be used.
Action type
Number
of actions
available
Info
Homing
1 Start of homing These action types are "active".
When these action types are
processed, the respective basic
function is triggered via
corresponding control outputs.
Positioning
50 Execution of a profile
Branch
16 Conditional or unconditional branch
(jump)
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
2 Variable branch as a function of the
input value of wBranch1 or
wBranch2.
Switch
16 Switching of digital output signals
Set counter
5 Setting one of the 5 counters
available to a specific starting value
Count
8 Counting processes including
comparison operation
Wait
8 Entering waiting times into the
program flow
Standby
* 5 Temporary activation of a setpoint
follower
End
1 Determination of the program end