How old is your machine V1 or V2 controller?

Zitat von smt_le im Beitrag #1

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we are trying to use both heads of our machine (VP-2500D). We have selected Mode "Double Head" and strategy "Two head different".
In the nozzle list we can choose Head A1 or A2, but cannot assign a head to a specific nozzle in the nozzle changer

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Zitat von smt_le im Beitrag #1

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How can we setup head A1 to use nozzles 1 to 4 and head A2 to use nozzle 5 and 6.

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Zitat von smt_le im Beitrag #1

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To that end, we want to correct placement errors of larger nozzles (5,6) by using head A2 with individual settings (head 2 SMT correction parameters settings in basic settings dialog).
Right now our machine uses always head one for placement jobs.

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Ok as i understand you don't know the relation between different calibrations to receive a proper placement.
First step is to check chapter 13 in manual and especially the check list from chapter 13.4 to know which parameters need to get adusted.
Second information you find in chapter 3.1 Relations between settings and positions!
There you see which parameter has influence to your placement accuracy.

And last point if it's still not working for you we can make a date for a web meeting and i try to explain step by step.

Send me an email if you need this support.

The Head usage depends on strategy settings chapter 12.3:
For double head mode we have 4 options:

2 Head same: Placement always use 2 identical nozzles in head 1 and head 2, placement by both heads. Double
head same is to improve speed. You use the same nozzle on both heads and the machine will pick two parts using
both heads, go to alignment, and finally place the two parts. You save one movement between the stations.

2 Head different change A1A2: Double head placement each head take different or same nozzle depending
on demand. If we use two different nozzles and the system automatically chooses two parts and works, the same as
described in double head mode. The only problem is we do not know the start position if the job file was stopped
and restarted again!

2 Head different No Change A1: Double head placement but head 1 keep the nozzle from changer slot 1
permanently and change only the nozzle for head 2. You need to put the nozzle in head 1 manually!

2 Head different No Change A2: Double head placement but head 1 keep the nozzle from changer slot 2
permanently and change only the nozzle for head 1. You need to put the nozzle in head 2 manually!

If nozzle changer disabled you assign heads to parts A1 / A2.
If nozzle changer enabled you assign nozzles to parts (CN030, CN040, CN065 ...)
System will automatically use nozzles depending on placement mode and it is possible to use identical nozzles in changer too.

yes exactly as described above.

Zitat

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So will the software will then avoid taking a nozzle from that slot of the auto-changer or should there be another nozzle of the same size also in the auto-changer to be used by the non-fixed head?

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Slot 1 or Slot 2 locked for changer operations in that modes.