WaferTransportSolutionManual - 第52页

HEAVY PALLET RAILS ADJUSTMENTS & SETTINGS 1.44 Wafer Transport Solutio n Chapter Issue 1 August 11 Snugger Pressure Snugger pressure is set in production to gi ve suf ficient pressure to grip the palle t without any …

HEAVY PALLET RAILS

ADJUSTMENTS & SETTINGS

Chapter Issue 1 August 11 Wafer Transport Solution 1.43

5. Run the product and check for any overrun. Repeat the procedure to fine

tune the sensor position.

Sensor Positioning

for Downline

Transfer

The placement of the sensor is product dependant (due to pallet, shim and

product mass). This must be adjusted on site to suit the product and reset, if

required, should a product change be made. Where downline transfer requires

a significant amount of the pallet to be fed back to the downline tool this

procedure should be followed.

NOTE

For an understanding of the logical timing sequences of the specific downline

tool interface, refer to the FMI chapter of the DEK Technical Reference Manual.

1. After the print process has finished, the belts feed the pallet in the direction

of the downline machine until the pallet’s leading edge reaches the rail end

sensor and the belts stop.

2. Both machines communicate via the FMI interface; the DEK printer awaits

the ready signal from the downline machine.

3. The belts rotate moving the pallet onto the downline equipment. The sensor

detects the trailing edge of the pallet. The belts stop.

4. The downline equipment takes control to transfer the pallet correctly.

In general, the sensor is positioned so that the transport belts in the DEK printer

stop when the sensor detects the trailing edge, and half of the pallet is located

in the downline machine.

HEAVY PALLET RAILS

ADJUSTMENTS & SETTINGS

1.44 Wafer Transport Solution Chapter Issue 1 August 11

Snugger Pressure Snugger pressure is set in production to give sufficient pressure to grip the pallet

without any lateral movement. The pressure regulator is located on the front

right hand side of the chase; the set pressure for an application should not be

altered. When a product change takes place, if the pallet used is significantly

different to the previous one, movement can occur.

1. Test for grip with the pallet in the rails with snugger pressure applied.

2. If the pallet can be moved, the pressure needs to be adjusted.

3. The pressure is nominally set to 3.45Bar.

4. If the pressure is set lower than this, increase it on the regulator to achieve

the nominal value.

5. Repeat Step 2 to check if lateral movement is still possible.

6. The recommended settings are shown in the table below.

Important. Do not exceed the highest setting; the maximum snugger

movement is 0.7mm. Over snugging causes unwanted stresses on the front

beam, affecting alignment offsets, causing misalignment issues on the rail.

Pressure Settings Regulator

Lowest Setting 80N @ 3.30Bar

Nominal Setting 100N @ 3.45Bar

Highest Setting 120N @ 3.60Bar

HEAVY PALLET RAILS

REPLACEMENT PROCEDURES

Chapter Issue 1 August 11 Wafer Transport Solution 1.45

REPLACEMENT PROCEDURES

To update a machine from standard rails to the heavy pallet rail (HPR) system

or to replace assemblies, refer to document: Machine Performance Upgrade

reference number 602215*1 Document part number 201322.

Compatibility The Wafer Transport Solution is compatible with the following DEK machines:

• Galaxy

• Europa

• Photon

• Horizon 01iX/02iX/03iX

• Horizon ApiX

NOTE

The Wafer Transport Solution is not compatible with machines fittied with the

Rapid Transport Conveyor (RTC).

Belt Replacement To replace belts, first move the belt drive shaft, which couples the front and rear

transport belts, out of the way.

NOTE

Do not remove the drive shaft completely away from the rear transport rail

bearing.

1. On the front transport rail; remove the four drive shaft hub bolts using a 3mm

Allen key.

2. Carefully slide the drive shaft hub out of the way.

3. Slide the drive shaft through the rear transport rail bearing; leave about half

of its length so that it freely balances without support.

Moving the Drive Shaft

Drive Shaft Hub

Drive Shaft

Front Transport Rail