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With the dynamic offset feature, it is possible to distribute execution of relative master offset and marker correction while synchro-
nizing over a specific distance instead of using Ramp 1 (parameter group 3-4* Ramp 1) and parameter 3-28 Master Offset Speed Ref.
With this feature, an offset execution profile is calculated based on:
Offset execution distance
Parameter 4-24 Max Speed
Actual master speed
Parameter 7-99 Min Ramp Time
The offset execution distance can be related to the distance traveled by the master or the follower, selected in parameter 17-96
Execution Distance Relation. The execution distance relation is automatically extended if required due to speed/ramp limitation. This
situation can be signaled in the fieldbus status word by selecting [22] Execution distance extended in parameter 8-13 Configurable
Status Word STW.
Parameter 17-96 Execution Distance Relation
Table 965: Parameter 17-96 Execution Distance Relation
17-96 Execution Distance Relation
Default value: [0] Master related
Change during operation: True
N O T I C E
This parameter is only available with software version 48.9X.
Select whether the value set in parameter 17-95 Offset Execution Distance is related to the distance traveled by the master or by the
follower.
Offset execution is distributed over the offset execution distance traveled by the master.
Offset execution is distributed over the offset execution distance traveled by the follower.
5.18 Parameter Group 18-** Data Readouts 2
5.18.1 18-0* Maintenance Log
N O T I C E
The following parameters are only available in FC 302:
Parameter 18-00 Maintenance Log: Item
Parameter 18-01 Maintenance Log: Action
Parameter 18-02 Maintenance Log: Time
Parameter 18-03 Maintenance Log: Date and Time
This group contains the last 10 preventive maintenance events. Maintenance log 0 is the latest and maintenance log 9 is the oldest.
By selecting 1 of the logs and pressing [OK], the maintenance item, action, and time of the occurrence are shown in parameter 18-00
Maintenance Log: Item – parameter 18-03 Maintenance Log: Date and Time.
The alarm log key allows access to both alarm log and maintenance log.
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Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide