00195193-02 SG D4 FSE en (1).pdf - 第114页

Reference run Initialization of the Stepper Motors Reference Run C&P12 Student Guide SIPLACE D4 (FSE) EN 09/2006 Reference run 107 5.3.2 Initialization of the Stepper Motors 5.3.2.1 Initialization of V alve Positioni…

Reference run

Reference Run C&P12 Overview Head Reference Run

Student Guide SIPLACE D4 (FSE)

Reference run EN 09/2006

106

5.3 Reference Run C&P12

General procedure

 The reference run procedure is identical to that for C&P12 type DLM3.

 The reference run starts with the initialisation of all the head stepper motors. This allows then, the

head axis to reference by moving first to their zero pulses and then to their zero point correction

values.

 In SIPLACE D4 machines, all heads and gantries move into the reference position at the same time.

5.3.1 Overview Head Reference Run

5.3 - 1: General reference run in detail

Reference run

Initialization of the Stepper Motors Reference Run C&P12

Student Guide SIPLACE D4 (FSE)

EN 09/2006 Reference run

107

5.3.2 Initialization of the Stepper Motors

5.3.2.1 Initialization of Valve Positioning Drives for Pickup/Placement and Reject Positions

The stepping motor is used to move the plunger

(with eccentric movement), which then switches

on the vacuum supply and enables the component

to be picked up. During CO placement, the plunger

is triggered again to close the nozzle, so that air

kiss can be switched through to the nozzle for CO

placement. At CO release, the plunger switches

the air kiss on and the CO is released. After CO

release, the vacuum is switched back on again.

Legend:

1. Home position, initial position. Give way free

for Star axis movement. Drawing show 2

possible positions of the plunger

2. 2a: switches on vacuum, vacuum value

"Nozzle Open "

2b: switches on air kiss, vacuum value "Nozzle

Closed "

3. Counter position to initial position. Give way

free for Star axis movement.

– The stepper motor of the valve drive is

turned to the home position. The stepper

motor runs and the light barrier on the cam

disk sets the end signal.

– Because of the special shape of the cam

disk the stepper motor is able to recognize

the home position.

Reference run

Reference Run C&P12 Initialization of the Stepper Motors

Student Guide SIPLACE D4 (FSE)

Reference run EN 09/2006

108

5.3.2.2 Initialize Valve Drive at DP-station

At the DP station, the stepping motor is used to

approach the sleeves (eccentric movement) and

rotate the CO/nozzles into the correct position, via

the DP axis.

Legend:

1. Home position DP drive around 1 mm away

from segment

2. Engaged position DP drive at segment

 The stepper motor of the valve drive is turned

to the home position. The stepper motor runs

and the light barrier on the cam disk sets the

end signal.

 Because of the special shape of the cam disk

the stepper motor is able to recognize the

home position.