00195982-03_SM_SWS_EN.pdf - 第168页

7 Die ejector 7.6 Converting the bayonet needle ejector unit (old version) to the magnetic needle ejector unit (current version) 168 Service Manual SIPLACE Wafer System (SWS) 11/2018 7.6 Converting the bayonet needle eje…

7 Die ejector

7.5 Mechanical adjustment of the die ejector unit in the Z direction (focus)

Service Manual SIPLACE Wafer System (SWS) 11/2018 167

7.5.4 Replacing the fork light barrier on the ejection system

Fig.215: Fork light barrier on the ejection system (detailed view)

The fork light barrier on the ejection system monitors whether the needles are moved in or out. Two

LEDs(4) shine red on the board if the needles are moved out. When the fork light barrier is in its

neutral position, the LEDs will not shine.

► Remove the two fastening screws (1) and then remove the board (3) together with the black

bracket.

► Unplug the connection cable (2) from the board.

► Remove the two screwsfastening the board.

► Fit the new board onto the black bracket. The board must be fitted flush on the motor base

unit.

► Plug in the connection cable and screw the board with the black bracket back into place on

the ejection system.

► Check the input signals.

► Go to the toolbar and select the button Service Settings → Motor settings (see 14.1 "SWS

GUI - service settings" [}357]).

► Select the button GallilMotion_axis2 and then the tab Axis status.

ð The displays shine:

– Forward Limit active

– Reverse Limit active

► Select Initialize axis.

ð The Reverse Limit active view will shine briefly. → All OK.

7 Die ejector

7.6 Converting the bayonet needle ejector unit (old version) to the magnetic needle ejector unit (current

version)

168 Service Manual SIPLACE Wafer System (SWS) 11/2018

7.6 Converting the bayonet needle ejector unit (old version)

to the magnetic needle ejector unit (current version)

In the event of a defect occurring in the old needle ejector unit with bayonet fastening, you will need

to convert to the new ejector unit with magnet.

●

Conversion kit (on request)

Necessary tools

●

Standard Allen key kit

●

Allen key 1.27mm / 1.5mm

7.6.1 Preparatory measures

► Move the wafer table to the change position.

► Move the die ejector Z axis upwards.

The following conversion takes place in the machine. All following diagrams are examples.

7.6.2 Removing the bayonet needle ejector unit.

Fig.216:

► Unlock the bayonet ring (2) with a rotation to the right (3) (clockwise) and pull the needle

ejector unit(1) up and off.

7 Die ejector

7.6 Converting the bayonet needle ejector unit (old version) to the magnetic needle ejector unit (current

version)

Service Manual SIPLACE Wafer System (SWS) 11/2018 169

Fig.217:

► Remove the four screws (4) (Allen 1.27 or 1.5, depending on the screw type) holding the bay-

onet ring (2).

Fig.218:

► Lift the bayonet ring (2) up and off.