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6 Reference Run 6.2 P&P Reference Run 6.2.2 Reference run at D- axis 106 Student Guide SIPLACE D-Series (FSE) 6.2.2 6 . 2 . 2 R e f e r e n c e r u n a t D - a x is Reference run at D- axis 6.2.3 6 . 2 . 3 V a c u u …

6 Reference Run

6.1.6 Repeating Measurement of Values During Placement 6.2 P&P Reference Run

Student Guide SIPLACE D-Series (FSE) 105

6.1.6

6.1.6 Repeating Measurement of Values During Placement

Repeating Measurement of Values During Placement

The following reference value measurements are achieved by remeasuring the reference values after

350 components have been placed per segment, at the end of PCB placement.

► Vacuum "open" and "closed" measurements

► Nozzle Scanning

► Reference nozzle length in component sensor option for C&P12 head

6.2

6.2 P&P Reference Run

P&P Reference Run

6.2.1

6.2.1 Reference run at Z axis

Reference run at Z axis

Reference run Z axis

Legend

1. Incremental scale mounted on moveable part of the Z

Axis

2. Fixed Incremental encoder

3. Zero puls on the incrementale scale (only one for Z

axis)

▪ Z Axis search for the commutation point of the linear

motors (in a special mode because of the danger of a

movement downwards). (A 3 phase motor continues

to run at the correct time and in the correct sequence,

when the current is switched from 1 phase to the next

one.)

▪ Then the Z Axis move upwards to the Zero pulse and

load the zero point correction.

▪ The zero point correction, max. and min. travel range,

are determined when you calibrate the head height.

6 Reference Run

6.2 P&P Reference Run 6.2.2 Reference run at D- axis

106 Student Guide SIPLACE D-Series (FSE)

6.2.2

6.2.2 Reference run at D- axis

Reference run at D- axis

6.2.3

6.2.3 Vacuum check

Vacuum check

▪ After the CAN bus processor for the vacuum/air blast distributor has booted, the vacuum/air blast

distributor is initialized. This means that vacuum/air blast generator is adjusted to ensure that neither

vacuum or air blast is generated at the nozzle.

▪ The Gantry axes move the Twin-head to the reject position.

▪ Over the reject box the Vacuum-, air blast generator switch to air blast to reject components and

check the air blast.

▪ The vacuum/air blast generator now switches over to vacuum and the open vacuum at both seg-

ments (X and D3 machine, D1/D1i: one Twin segment) is measured*.

▪ After measurement, the pressure is adjusted back to 0 bar.

▪ The vacuum reference run has now been completed for the Twin head.

* The closed vacuum value for the Twin segments relates to the calibration value which was determined

in SITEST.

Reference run D-axis

Legend

1. Incremental glass scale D-axis

2. Incremental encoder

3. Zero pulse on the incremental glass scale

Then the D-axis (turning axis) executes the reference

run.

The D-axis runs to the zero pulse of the D- axis encoder.

The zero point correction value will be loaded. The D-axis

moves to the reference position, in accordance with the

prefix shown before the value.

Reference run completed! This is followed by the gantry

reference run (see Section Gantry).

6 Reference Run

6.2.4 Height Reference Run 6.2 P&P Reference Run

Student Guide SIPLACE D-Series (FSE) 107

6.2.4

6.2.4 Height Reference Run

Height Reference Run

Measure nozzle height

With this function we check the correct nozzle type which

is programmed. The nozzle length is taken to calculate

the pick up and placement height for the following place-

ments.

Legend

1. Top of fixed conveyor side

2. Z motor

3. Vacuum - air blast distribution

► The gantry moves the placement heads above the

fixed conveyor side.

► The Z axis positions module 2 (X/D3 machine) down-

wards.

► The travel range of the Z axis is taken to calculate the

Twin head height in relation to the nozzle type.

► Now the same happen with module 1.

► The maximum length tolerance is 0,4 mm: If the

length difference is too high an error message is dis-

played.

NOTICE

Both modules are measured at the same position of the PCB conveyor!

This Twin head reference run is performed parallel to the C&P head reference run in the other

placement area.