00194614-08 Trainingsdoku. SG X-Serie_X4i SW70x (AL2)_EN - 第222页
C&P20A Parts Overview with Function Description Overview Student Guide SIPLACE X-Serie and X4I SW70x (AL2) 222 Due to the mechanical arrang emen t, there is only one 0° positio n in each segment. Star motor 7.2.3.7 S…
C&P20A
Overview Parts Overview with Function Description
221 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)
DP drive
7.2.3.6 DP drive
DP Drive - F unction
DP Drive - Function
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.
DP axis
The DP axis is responsible for turning the component into
the correct placement position within a set time. Vacuum
and air blast to the nozzle are provided via the hollow
shaft of the DP axis.
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 SIPLACE X-Serie and X4I SW70x (AL2) 222
Due to the mechanical arrangement, there is only one 0° position in each segment.
Star motor
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. Via this hollow shaft
the compressed air is 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)
C&P20A
Overview Parts Overview with Function Description
223 Student Guide SIPLACE X-Serie and X4I SW70x (AL2)
Star Drive
Star Drive
See also
7.2.5.1 Overview of Air Blast Supply [ ➙ 226]
7.2.5.2 Overview of Vacuum Supply [ ➙ 227]
▪ The star motor is a brushless three-phase drive with
sinus commutation.
▪ An optical measurement system is used for both
commutation and recognition of the rotary angle. This
supplies the track signals A, B and the zero pulse.
▪ The motor is controlled with the help of these track
signals. The actual values of the position are
evaluated on the axis controller. The servo unit
enhances performance and is supplied with 2-phase
current from the axis controller board. (The third
phase is calculated automatically.)
▪ A flange is installed on the motor shaft which is
screwed to the star frame. The smoothed distributor
disc (1) is located between the flange and the star
frame.
▪ The motor shaft has a hole for the compressed air
supply, used to feed the holding circuit.
▪ The smoothed distributor disc enables vacuum and
air blast to be measured in the hold circuit (3) and
placement/pickup circuit (2).