00196044-05 - sg x und x4i fse_en.pdf - 第246页
C&P20A Overview Parts Overview with Function Description S tudent Guide (FSE) SI PL ACE X Series and X4I C&P20A Edition 01/2009 EN 246 7.2.3.6 DP drive DP Drive - Function DP axis The DP axis is responsible for t…
C&P20A
Parts Overview with Function Description Overview
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
245
C&P20A Head – E/D Transformer (Collector Ring)
Energy transmission
7-3: E/D transformer
The E/D transformer consists of a stationary
and a rotating part.
The three sliding contacts (5) transmit the
direct current voltage (24V/4A).
Communication, in other words the
transmission of CAN Bus signals, is
contactless.
Connector (1) (connection to intermediate
distributor)
The centering pin (2) fixes the stationary part
(4) in place.
The rotating part (3) is fixed with five screws to
the star carrier. These can be loosened via the
service opening (6).
7-4: E/D transformer – energy transmission
Two transmission leads are needed to
transmit the energy supply:
P24V (1) and GND (2).
Another lead (sliding contact) forms the
connection between the rotating part and the
housing ground (ESD protection (3)).
C&P20A
Overview Parts Overview with Function Description
Student Guide (FSE) SIPLACE X Series and X4I
C&P20A Edition 01/2009 EN
246
7.2.3.6 DP drive
DP Drive - Function
DP axis
The DP axis is responsible for turning the
component into the correct placement position
within a set time. The hollow shaft of the DP axis
provides vacuum and air blast to the nozzle.
The complete DP drive can be replaced during
service work.
Legend
1. Control board for DP motor
2. Motor
3. Linear guide rails
4. Vacuum connection
5. Measuring system: resolution 72digits/°
6. Dead indexing plate
7. Filter disk
The DP drives are controlled by the DP
master, in accordance with the counter pulse
and set value (pickup angle, placement angle
and correction angle after Vision).
The DC motor is monitored by a measurement
system attached to the motor axis.
C&P20A
Parts Overview with Function Description Overview
Student Guide (FSE) SIPLACE X Series and X4I
Edition 01/2009 EN C&P20A
247
Measurement System with Hall Sensors – Function:
The sensor detects the movement of ferromagnetic material (toothed wheel) through changes to the
magnetic flow.
If one element is opposite a ferromagnetic tooth and another opposite a gap, this causes a one-sided
increase in induction.
The difference arising between the two elements alters the polarity once the toothed wheel moves.
This change is evaluated, digitized and used to address or give feedback in closed-loop control.
Due to the mechanical arrangement, there is only one 0° position in each segment.
7.2.3.7 Star motor
The star motor has a brushless three-phase drive
with integrated measurement system.
The motor shaft has a hollow design. This enables
compressed air to be supplied to the holding circuit
of the 20 segments.
The vacuum in the holding circuit is measured via
the connection (4).
The air blast and vacuum in the pickup/placement
circuit are measured via the connection (5).
The star motor is not a spare part.
Legend
3-phase alternating current drive (1)
Incremental measurement system (2)
Compressed air connection for hold circuit (3)
Flange on the motor shaft (6).