00195440-05-SG_D-Series_FSE-EN - 第138页

8 Gantry 8.3 Pneumatic Connections on the Gant ry 8.4.1 Travel Ranges and Speed Monitoring at the D4/D4i (A364) 138 Student Guide SIPLACE D-Series (FSE) 8.3 8 . 3 P n e u m a t ic C o n n e c t io n s o n t h e G a n t r…

8 Gantry

8.1.3 Y-Axis Mechanical Structure 8.2 Overall Gantry Design

Student Guide SIPLACE D-Series (FSE) 137

Incremental en-

coder

With optical 1-field technology

Incremental

scale

Glued to MA

frame. Gauge

set HS

Glued to MA

frame. Gauge

set HF

Glued to MA frame. Gauge set NEW

Y travel range

(per gantry and

up to stopper or

2nd gantry)

~1507.5 mm ~1234.0 mm

(gantry 2)

~1428.5 mm

(gantry 1)

~1205 mm ~1591.5 mm

Y incremental

scale length per

1600 mm 1960 mm (as in

X machine)

1960 mm (as in X machine)

Arrangement of

bearing slider

2 sliders on each of the 2 linear guides, one above the other

Y linear guid-

ance slider

Grease

Temperature

sensors for com-

pensation

1 at each gan-

try

2 at each gantry 1 at each gantry

X-axis distribu-

tor board

Gantry head

distributor,

version 3

Head interface

and head

adapter

Gantry head distributor, version 3

Compressed air

distributor block

Yes, with di-

rect tubes to

head

Yes, X version Yes, with tubes

to T-piece and

then to head

Yes, with tubes

to T-piece and

then to heads

Yes, with tubes

to T-piece, 1

output blocked

Y-axis distribu-

tor board

Gantry distrib-

utor

Gantry inter-

face

Gantry distributor

End position

proximity switch

None

Light barrier for

anti-crash moni-

toring

Not any more Never needed

Anti-Crash

Board

Not any more

NOTICE

eSW axis controller

All zero pulses for the gantry axes are checked to see whether 50,000 count pulses occur or

whether a whole number multiple of this occurs!!

An overshoot check for gantry axis positioning is no longer required. The continual calculation

of the axis positioning, based on the axis track signals, gives optimal positioning, even in the

case of mechanical defects.

Travel range: axis controller determines hardware position at stopper; 2 mm before; travel

range – software position – 0.5 (X) 1.5 mm (Y) before that - limited.

Assembly D4/D4i D3 D2/D2i D1/D1i D1/D1i single

head

8 Gantry

8.3 Pneumatic Connections on the Gantry 8.4.1 Travel Ranges and Speed Monitoring at the D4/D4i (A364)

138 Student Guide SIPLACE D-Series (FSE)

8.3

8.3 Pneumatic Connections on the Gantry

Pneumatic Connections on the Gantry

The placement head is supplied with 5.1 bar compressed air from the pneumatic unit.

D4/D4i/D2/D2i/D1/D1i: The 7-fold pneumatic hose is also used to cool the Y-axis motor. The X-axis mo-

tor is cooled by the traverse fan.

8.4

8.4 Settings

Settings

For detailed information about the assemblies and their settings, refer to the service guide for the respec-

tive machine.

8.4.1

8.4.1 Travel Ranges and Speed Monitoring at the D4/D4i (A364)

Travel Ranges and Speed Monitoring at the D4/D4i (A364)

The travel range of the X- and Y-axes is determined automatically with the SITEST program.

This means that, during travel range calibration, the axis concerned moves stepwise towards the mini-

mum or maximum position, until the set target value is no longer reached by the axis. It is then assumed

that the hardware limit switch (bumper) has been reached. After a time window of approx. 10 ms, the

greatest actual value achieved is taken to calculate the travel range.

To guarantee an appropriate safety distance before the hardware end position is reached, a certain dis-

tance is deducted from the set travel range and is defined as the software end position for the axis. This

enables the axis to brake in time, even when errors occur.

Pneumatic distributor under the gantry head distributor

Legend

1. Input: Exhaust Venturi nozzle pneumatic hose

(PK12)

2. Input: 7-fold pneumatic hose (PK 5)

3. Silencer for exhaust (only indicated in the diagram)

4. Compressed air outlet for pickup/placement circuit

and holding circuit

D1/2/D1i/D2i: to T distributor C&P/P&P head

D4/D4i: to C&P head

8 Gantry

8.4.1 Travel Ranges and Speed Monitoring at the D4/D4i (A364) 8.4 Settings

Student Guide SIPLACE D-Series (FSE) 139

Travel ranges for X and Y axes (D4/D4i and X4 shown as

example)

The end of the X-axis travel range (software end position)

is 0.5 mm before the hardware end position, which is 1.5

mm before the bumper. A safety distance of 2.0 mm to

the bumper is adequate, if the X-axis moves into this area

with excessive speed.

The end of the Y-axis travel range (software end position)

is 1.5 mm before the hardware end position. The Y-axis

travel range for a particular placement area is monitored

in one direction by the software end position and a bump-

er. In the other direction, the travel range is calculated

from the position of the opposite gantry. A mutual gantry-

gantry position query is issued, which regulates the start

of the Y axes. The communication exchange is via the

SPI bus (Small Processor Interface bus) between the Y

axes and reports their positions and speed (see descrip-

tion of anti-crash function). The safety distance between

the gantry bumpers is 4 mm during placement.

Travel ranges and safety distances for gantry axes (D4/

D4i and X4 shown as example)

1. This means that, during travel range calibration, the

X-axis moves as far as possible towards the mini-

mum or maximum position, until it touches the bump-

er.

The travel ranges are calculated, taking into account

the relevant safety distance.

2. In placement areas 1 and 2 of the D4/D4i, gantry 1/2

moves to the minimum position and gantry 4/3 to the

maximum position, for calculation of the Y-axis travel

range.

3. The safety distance (1) between the sides of the gan-

try facing each other is at least 4mm, during place-

ment.