SIPLACE D系列Servicemanual - 第25页

Service Work D1/D2 Gantry Servicemanual (internal version) SIPLACE D Series 25 Installation Legend 1. Adhesive device, fitted at the gantry (not fully visible) X Fit the adh esive devic e at the gantry, in p lace of the …

Service Work

Gantry D1/D2

24 Servicemanual (internal version) SIPLACE D Series

Removal

4-3: Adhesive device for scale

Legend

1. Adhesive device for scale

2. Fastening screws

3. Scale guide

Legend

1. X-axis scale

2. X-axis incremental encoder (read head)

3. Fastening screws for incremental encoder

4. Starting position of scale

5. Zero pulse on scale

X Move the relevant changeover table out of the

machine.

X Switch off the machine.

X Move the gantry into the position which allows

you best access.

X Loosen the two screws (3) fastening the

incremental encoder (2). Let the encoder

dangle down below the gantry, from its cable.

X Use a scribing iron to mark the starting position

(4) of the scale, near the deflection unit,

opposite the X motor.

X Wear protective gloves.

X Use the chisel to lever the old scale (1) off the

machine frame and then remove the scale.

X Clean the contact surface with a cleansing

tissue and ethanol, to remove any remaining

adhesive. The contact surface must be clean

and free of grease. If you are unable to

achieve this with the cleansing tissue alone,

use the chisel to help you.

ATTENTION:

Make sure that you do not scratch the

contact surface!

Service Work

D1/D2 Gantry

Servicemanual (internal version) SIPLACE D Series

Installation

Legend

1. Adhesive device, fitted at the gantry (not fully

visible)

X Fit the adhesive device at the gantry, in place

of the incremental encoder. To do this, thread

the long, thin part of the adhesive device in

under the head mount, so that this long, thin

part is pointing towards the deflection unit.

X Press the adhesive device up, against the

gantry, and fix it in place with the two screws

provided ((arrows) – the picture only shows

the ends of the screws).

X Place the new scale on a clean work surface.

X Clean the back of the scale with the cleaning

agent provided. The surface to be fixed down

must be clean and free of grease.

X Attach the double-sided adhesive tape to the

back of the new scale.

Legend

1. Scale

2. Adhesive device

3. Adhesive surface on the underside of the

gantry

X Remove the protective cover from the

adhesive strip on the back of the scale.

X Thread the scale into the adhesive device

(arrow). Make sure that the scale does not yet

remain sticking to the adhesive surface on the

underside of the gantry.

ATTENTION: Aligning the scale

When viewed in the direction of

transport, the zero pulses must be on

the left side of the gantry i.e. aligned

towards the C&P head. You can also

use the zero pulse window of the scan

head for orientation.

Service Work

Gantry D1/D2

26 Servicemanual (internal version) SIPLACE D Series

SITEST

X Start SITEST.

X Select

Single Functions

and perform (for all heads) a

head reference run

X Select

Gantry-Gantry axis functions

and perform a

reference run

for the X-axis.

X If the single reference run is successful (no errors), perform a

complete reference run

X Calibrate the

Machine zero point:

(for both gantries if using a D2).

X Save the machine data.

4-4: Fixing the X scale

X Place the scale in the previously marked

starting position and press it down firmly in this

position.

ATTENTION: Make sure the scale is

not bent or rubbed against any

parts.

X Move the adhesive device with the head

mount. While doing so, press the scale firmly

against the adhesive surface with your finger

(see fig.).

ATTENTION: Make sure that no

blisters or uneven areas are formed.

If this does occur, the scale must be

removed and replaced with a new

scale.

X In order to fix the last part of the scale, move

the head mount back and press the rest of the

scale down firmly with your hand.

X Make sure that the whole scale is fixed firmly

onto the gantry.

X If necessary, clean the scale and the

incremental encoder lens again.

X Fit the incremental encoder with the two

fastening screws so that there is a gap of 0.4

mm between the incremental encoder and the

scale. Use a suitable thickness gauge

(plastic). (See also: "Replacing the X-Axis

Incremental Encoder " in the service manual).

X Move the gantry out of the table area.

X Switch the machine on.

X Insert the changeover table into the machine.