SG_FSE_SiplaceHF_HF3_00193901-05_eng.pdf - 第490页
1 - 16 S tudent Guide SIPLACE HF/HF3 1 1 MTC 2 Edition 09/2005 16 1 1.1.6.6 Safety loop s Fig. 1 1.1 - 22 Safety loops Start Initia lize Safety loop to SIPLACE interrupted Yes No No No Emer gency stop button pressed Yes …
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Student Guide SIPLACE HF/HF3
Edition 09/2005 11 MTC 2
15
11.1.6.4 Combination circuit breakers
The combination circuit breakers are fitted on the rear of the masterdrive housing. In the event of
malfunctions that are relevant to safety, they are triggered.
Fig. 11.1 - 21 Position of the combination circuit breakers
1. Combination circuit breakers
11.1.6.5 Safety and signaling circuits
The safety circuit consists of three safety combinations, which work completely independently of
each other. They are used to monitor the following actions:
– Actuation of the EMERGENCY STOP button
– Opening the protective door of tower 1
– Opening the protective door of tower 2
The two protective doors are each equipped with a protective door switch. These are looped
into the starting circuit of the respective monitoring device.
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If the EMERGENCY STOP button is pressed during operation or one of the two protective doors
opens, the relevant safety combination is tripped and the drives are locked via contactors on the
electronics board.
The signaling circuit for the protective door monitoring system is transmitted to the MTC 2 control-
ler by the relevant safety combinations by means of normally open contacts.
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Student Guide SIPLACE HF/HF3
11 MTC 2 Edition 09/2005
16
11.1.6.6 Safety loops
Fig. 11.1 - 22 Safety loops
Start
Initialize
Safety loop to
SIPLACE interrupted
Yes
No
No
No
Emergency stop
button pressed
Yes
Yes
Error message
Error message
Protective door
open
Machine inizialized
Tower 1
SSK *) tower 1: not active
SSK *) tower 2: active
Lifting axis 1: 0 V
Feed axis 1: 0 V
Lifting axis 2: 400 V
Feed axis 2: 400 V
Tower 2
SSK *) tower 1: active
SSK *) tower 2: not active
Lifting axis 1: 400 V
Feed axis 1: 400 V
Lifting axis 2: 0 V
Feed axis 2: 0 V
Tower1 andtower2
SSK 1*) tower: not active
SSK 2*) tower: not active
Lifting axis 1: 0 V
Feed axis 1: 0 V
Lifting axis 2: 0 V
Feed axis 2: 0 V
*) CSC Contactor safety combination
Error message
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Student Guide SIPLACE HF/HF3
Edition 09/2005 11 MTC 2
17
11.2 Construction and mode of operation
The MTC 2 extends the capacity of a SIPLACE station to supply components by up to 100 JEDEC
waffle pack trays. It has its own controller (C167 controller board) and is integrated into the station
computer software. The setup of the MTC 2 is integrated into the line controller software of a sys-
tem.
Each of the two towers of the MTC 2 comprise a lifting axis and a feed axis. The lifting axes can
be set up with a large number of waffle pack trays in cassettes and transport these vertically. The
feed axes transport waffle pack trays which have been set up horizontally to the transfer position
to the SIPLACE station.
All drive units comprise Masterdrive drive systems:
The servo motors of the lifting axes each drive a spindle via a dual toothed belt, which trans-
ports vertically the cassettes which have been set up. A holding brake in the motors, which is
controlled by the Masterdrive via optocouplers, prevents the axis from moving when the ma-
chine is switched off. The lifting axes remain under control when a position has been reached.
The toothed belts are duplicated for safety reasons and are monitored using inductive sensors.
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The servo motors of the feed axes use a toothed belt and belt gear to move a driver, which
then moves the selected WTC horizontally to the transfer position of the SIPLACE station.
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Lifting axis
One revolution of the servo motor is equivalent to 4096 pulses or a lift of 10 mm on the spindle.
Feed axis
One revolution on the servo motor is equivalent to 4096 pulses or 27.78 mm on the linear guide.