00198150-02_SM_TX_en.pdf - 第173页
7 Conveyor 7.6 Fiber Optic Cable and Light Barriers Service Manual SIPLACE TX Series 06/2017 173 Fig.234: Repairing fiber optic cable ► Slide both ends of the fiber optic cable into the repair hose until they touch each…
7 Conveyor
7.6 Fiber Optic Cable and Light Barriers
172 Service Manual SIPLACE TX Series 06/2017
Performing the repair
► Use the software or manually move the conveyor rail into a position which allows you best ac-
cess.
– To move the conveyor rail manually, pull the toothed belt of the width adjustment unit.
► Switch off the machine, disconnect it from the power supply and secure it to prevent
unauthorized reactivation. Observe the instructions in section 1.2 "Preparatory Work..." [}15].
► Move all gantries out of the transport area as far as possible at one side of the machine.
► Remove the fiber optic cable from the conveyor side.
NOTICE
Sticker
If the fiber optic cable has already been repaired, a yellow adhesive sticker dot will be at-
tached to the optical system or the analysis unit.
You may only use one repair hose per fiber optic cable. You must either replace the whole
fiber optic cable or the part that has already been repaired.
► Check the fiber optic cable for damages.
The most common error causes are:
– Damaged optical system of the fiber optic cable
– Fiber optic cable pinched in conveyor side
– Ruptured fiber optic cable (e.g. caused by a too narrow bending radius)
NOTICE
Fiber optic cable ruptured at the trailing chain
If the fiber optic cable is ruptured in the trailing chain or at the transition from the trailing
chain to the conveyor side, the effort for finding the error cause is often identical to the ef-
fort for replacing the complete fiber optic cable.
► Cut the fiber optic cable at the defective position.
► Use the cutter tool to cut off 10mm of the fiber optic cable on each side of the rupture.
Make sure to preserve a minimum distance of approx. 50mm to the optical system.
Fig.233: Cutter tool
1. Cutter tool
2. Cutting aperture
3. Fiber optic cable
CAUTION!
Only use each cutting aperture once
Make sure that you only use each cutting aper-
ture once. If they are used more than once, good
quality cuts can not be guaranteed.
.
7 Conveyor
7.6 Fiber Optic Cable and Light Barriers
Service Manual SIPLACE TX Series 06/2017 173
Fig.234: Repairing fiber optic cable
► Slide both ends of the fiber optic cable into the
repair hose until they touch each other.
► Use Loctite 406 on the repair hose.
Thus, the fiber optic cable is fixed in the hose.
The two ends of the fiber optic cable are not
glued to each other.
CAUTION!
Highly viscous instant glue
Use gloves and a dosage tip.
.
NOTICE
Installation instructions
► Check the setting for the transmitter / receiver and correct it if necessary (see Setting
and Correcting the Laser Light Barrier).
► Calibrate the sensors of the PCB conveyor.
► Check the display on the fiber optic sensor. The value shown must be over 100.
Check the value for various conveyor widths (red = output / green = input).
► Mark the optical system and the fiber optic cable at the fiber optic sensor with the glue
dot supplied. The glue dot indicates that the fiber optic cable has already been re-
paired and that a replacement is compulsory at the next defect.
See also
2 Replacing the Fiber Optic Cable Sensor [}174]
7 Conveyor
7.6 Fiber Optic Cable and Light Barriers
174 Service Manual SIPLACE TX Series 06/2017
7.6.5 Replacing the Fiber Optic Cable Sensor
Parts, equipment and tools
●
Fiber optic sensor WLL180T-M pre-programmed SXa [03093294-xx] (master) or
Fiber optic sensor WLL180T-F pre-programmed SXa [03093295-xx] (slave)
Overview
Fig.235: Fiber optic cable sensors
The fiber optic cable sensors are located at location 2
under the lifting table plate.
The sensors (1) to (8) for the input conveyor, place-
ment area (second sensor as option) and output area.
The receiver is always at the top of the sensors and
the transmitter at the bottom.
Conveyor lane Designation Location
Lane 1 1 (master) Input belt
2 (slave) Placement area
3 (slave) Second sensor as option
4 (slave) Output belt
Lane 2 5 (slave) Input belt
6 (slave) Placement area
7 (slave) Second sensor as option
8 (slave) Output belt
The master synchronizes the slaves to prevent any mutual interference. This is conducted via a
side connection to the neighboring sensor. For this reason, do not simply lift the sensors up and off
the strip.
Each sensor has two fiber optic cables connected (transmitter/receiver), which belong to the same
conveyor belt (segment).
Fig.236: Fiber optic cable sensor
1. Cover
2. Locking the fiber optic cables
top = open
bottom = closed
3. Fiber optic cable
4. Electrical connection
5. Electrical connection to neighboring receiver (un-
der the plastic cover)