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Reference run Reference Run Gantry Reference Run Sequence at X and Y-axis S tudent Guide SIPLACE D4 (FSE) Reference run EN 09/2006 104 5.2 Reference Run Gantry 5.2.1 Reference Run Se quence at X and Y -axis When performi…

Reference run

Overview Reference Run

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Reference run

103

5 Reference run

5.1 Overview Reference Run

The C&P12 has 3 axes: the Z-axis, the star axis

and the DP axis, plus the X and Y axes for the

gantry. Before you start the production you must

initialize all axes that the axis controller know their

actual mechanical position.

Reference run

Reference Run Gantry Reference Run Sequence at X and Y-axis

Student Guide SIPLACE D4 (FSE)

Reference run EN 09/2006

104

5.2 Reference Run Gantry

5.2.1 Reference Run Sequence at X and Y-axis

When performing a reference run with bumper

detection, proximity switch queries are no longer

used. Instead, the reference run continues until

the mechanical end stop (bumper) is reached. The

reference pulse is searched for in a set region of

the incremental scale.

The axis travel direction is reversed, if the set

target value is not reached by the axis(target value

≠ actual value). The zero pulse will then be

searched for in a set part of the incremental scale.

After reaching the zero pulse, the axis will stand in

a defined position.

Reference run

X and Y commutation position search Reference Run Gantry

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Reference run

105

5.2.2 X and Y commutation position search

A commutation position search for the 3 phases AC-drives on the gantry starts right after the head axis

reference run is succesfully finished.

Starts reference run for main axes at all 4 gantries:

1. Reference motor commutation .

2. Referencing the measurement system.

After detecting the end position bumper, the axis searches for the zero pulse in a specific range . If

the axis detects several or no zero pulses, it will stop and an error message will be issued .

3. Approaching the zero point correction value

4. Reference run of main axes completed, height reference run starts

5.2.3 Reference run of X- and Y- axes

Starts reference run for main axes at all 4 gantries:

 1. Commutating the motors

 2. Referencing the measurement system.

After detecting the end position bumper, the axis searches for the zero pulse in a specific range . If

the axis detects several or no zero pulses, it will stop and an error message will be issued .

 3. The axes are now in a defined position.

 4. Reference run of main axes completed, height reference run starts

Legend:

1. Incremental encoder

2. Test plug for track signals (analog)

3. Incremental scale

4. Increments on the scale (1µm resolution)

5. Zero pulse

6. Connection cable to gantry distributor/gantry

head distributor