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5 Placement Heads 5.2 C&P20 P/M2 Head 100 Technical Training SIPLACE TX-Series 10/2016 Automatic head offset correction (TX micron only) ● The PCB camera centers the fiducial after clamping to determine the exact pos…

5 Placement Heads

5.2 C&P20 P/M2 Head

Technical Training SIPLACE TX-Series 10/2016 99

Pick Up Workflow detailed

Pick up vacuum is by default always on.

Holding circuit of each segment is always on if vacuum pump or compressed air is on.

5 Placement Heads

5.2 C&P20 P/M2 Head

100 Technical Training SIPLACE TX-Series 10/2016

Automatic head offset correction (TX micron only)

●

The PCB camera centers the fiducial after

clamping to determine the exact position of

the board.

●

Max. 20 components will be picked up.

Components are then centered under the

component camera.

●

Automatic head offset correction:

– 25µm @ 3σ:

Every 60 min. 3 fiducial marks on the

Xfiducial bar are checked.

– 20µm @ 3σ:

Every 60 min. all fiducial marks on the

Xfiducial bar are checked.

– 15µm @ 3σ: Every 40 min. :

- The head offset is checked using the

calibration tool on the Xfiducial bar.

- All fiducial marks on the Xfiducial bar

are checked.

- All fiducial marks on the Yfiducial bar

on the vacuum tooling are checked.

– 25/20/15µm @ 3σ:

Every 5 min. the head offsets are

calculated using max. 20 components

of the current job which were picked up

this head cycle.

●

Place components on PCB according to

the program.

NOTICE

Calibration nozzles

For TX micron machines in every nozzle changer at least 1 calibration nozzle (4257) has to

be setup.

In both calibration pockets a calibration tool must be available.

This is necessary to ensure that the automatic head offset correction can take place.

5 Placement Heads

5.2 C&P20 P/M2 Head

Technical Training SIPLACE TX-Series 10/2016 101

5.2.3.3 Standard Placement Workflow

Standard Placement

In this mode (light barrier down) the placement force at the CP20P Head is around 2N.

During the production, a nozzle scanning run is performed after 350 head cycles (can be set by

SIPLACE service if required) and after the completion of the board currently processed.

The nozzle quality check can be configured in four different levels via the station interface.

Pick Up Procedure

With early vacuum move to pick up position the vacuum generator switches the vacuum on before

the Z Axis moves down.

"Contactless": The first component is picked up with standard mode to determine the Z Axis down

position, the picked component is rejected. The next components are picked up with the absolute

position of Z Axis down.