00196044-05 - sg x und x4i fse_en.pdf - 第374页

Twin Head Settings Calibrating the Twin Head S tudent Guide (FSE) SI PL ACE X Series and X4I T win Head Edition 01/2009 EN 374 9.4.7 Calibrating the T win Head During initial setup or afte r replac ement of a T win modul…

Twin Head

Calibration of Vacuum Generator on the Twin Head Settings

Student Guide (FSE) SIPLACE X Series and X4I

Edition 01/2009 EN Twin Head

373

9.4.6.5 Checking the Air Blast

SITEST:

X Start SITEST and move the gantry so that you can easily reach the nozzle with one hand and the

keyboard with the other hand.

X Select

Twin Head

X Select

Head Board

X Select the appropriate Twin module.

X Switch "on" the air blast.

X Close the nozzle of the appropriate segment (e.g. by sealing it with your finger tip).

X You can edit and modify the value for the air blast pressure or leave the standard value.

X Select

Measure Pressure

X The measured value should correspond (approx.) with the given value.

9-17: SITEST functions - head board

X Select the

Segment

X Switch the vacuum on and the air blast off.

X Close the nozzle of the appropriate segment

(e.g. by sealing it with your finger tip).

X Select

Measure Pressure

X The displayed value should be close to the

"Threshold value closed".

NOTE:

The value "vacuum closed" is determined in the

Calibrating the Twin head

==>

Calibrate

closed vacuum

NOTE:

The air blast value can be edited to a value between 0 and 400 mbar, with the Siemens Service

password. Default setting: 400 mbar

Twin Head

Settings Calibrating the Twin Head

Student Guide (FSE) SIPLACE X Series and X4I

Twin Head Edition 01/2009 EN

374

9.4.7 Calibrating the Twin Head

During initial setup or after replacement of a Twin module the Twin Head must be calibrated. This menu

measures the offset between the Twin segment and the PCB camera center.

X Put the nozzles 517 by hand on the segments of the P&P modules.

X Make sure that the first nozzle from the garages are empty and depend on this the filling level from

the nozzle changer are edited, This is necessary for calibration of the pickup height.

X Enter the nozzle "517" for both TWIN modules as active nozzle on the TWIN Head:

SITEST:

X Select

Twin Head

X Select the nozzle changer head function.

X Select the appropriate "segment" from the list.

X Select

Edit

==>

517

and

X Enable

Select Segment

X Select

Confirm Exchange

X In the SITEST main menu, select

All Heads and Cameras

X Only select the checkbox

Twin Head

of the applicable placement area.

X Select

Start

9.4.8 Mechanical Adjustment of the Z Axis Incremental Encoder

9.4.9 Vision DC/DC Converter

The function of the Vision DC/DC converter is to provide the 42V voltage supply for the stationary

cameras.

The 42V are use for the illumination of the stationary cameras.

When replacing the Vision DC/DC converter, observe the following settings, which depend on your

installation location (main/subdistributor).

9.4.10 Manual Lowering of Z Axis

The Twin head is designed for a placement force of 0.5 to 15 N (up to 30 N for the high force Twin head)

. The rotary axis needs to be very smooth-running, especially for low placement forces. Therefore, the

rotary axis is not constructed for traction forces.

NOTE:

The following calibration steps are performed automatically: - MA zero point, PCB camera,

calibration tool position, head height, TH calibration offset module 1 and 2, IC camera, (option

FC camera), nozzle changer.

NOTE:

The incremental encoder on the Z axis must be adjusted to a distance of 0.4 mm to the

incremental scale. Please adjust the incremental encoder parallel to the incremental scale.

After fitting, check the Z axis track signals (see Section Component Handling).

Main distributor Subdistributor

Bypass 1 (wire jumper) 10 - 13 6 - 13

Bypass 2 (wire jumper) 11 - 12 4 - 12

Twin Head

Manual Lowering of Z Axis Settings

Student Guide (FSE) SIPLACE X Series and X4I

Edition 01/2009 EN Twin Head

375

Since both segments of the Twin head are fitted at an angle of 180°, there are two different methods for

moving the Z axis downwards.

CAUTION:

When manually lowering the Z axis, the Twin head module can be easily damaged!

X Manual lowering may only be performed by trained personnel!

ATTENTION:

Before performing manual lowering of the Z axis, make sure the Z axis has been released at the

relevant axis controller board.

X When releasing the Z axis, the Z axis return cylinder moves upwards.

X If the axis is not released, the return cylinder will automatically move upwards when the Z axis

is manually lowered, which could cause injuries and damage to the placement head.

Lowering the Z Axis at P&P Module 1

To safely press the Z axis downwards, apply

manual pressure to the marked part of the return

unit driver.

Lowering the Z Axis at P&P Module 2

The Z axis can be moved downwards at segment

2 by taking hold of the carrier arm from both sides

and then pushing this down.