00197042-04_SM_X-Serie-S_Customer_EN.pdf - 第276页
7 Conveyor 7.8 Laser light barriers, fiber optic cable and PCB sensors 276 Service Manual SIPLACE X-Serie S 06/2019 Fig.350: Holding plate ► Remove the screws (2) fastening the bracket (3) to the top end of the traili…
7 Conveyor
7.8 Laser light barriers, fiber optic cable and PCB sensors
Service Manual SIPLACE X-Serie S 06/2019 275
Troubleshooting
The following points indicate that there are problems with the fiber optic cables:
●
Boards are shown in the conveyor, although there are none there.
●
The fiber optic cables are not illuminated on the transmitter side.
●
The fiber optic sensor (at the conveyor control) shows a value of zero.
●
If the fiber optic cable sensor shows nothing, this indicates that there could be a problem with
the sensor.
Try the following steps to remedy the problem:
► Refresh the PCB status.
► Teach the PCB sensors.
NOTICE
Fiber optic cable sensor
If you replace the fiber optic cable transmitter and receiver on the fiber optic sensor, you
can check at the "receiver end" whether the fiber optic cable is OK. The transmitter should
be illuminated.
Removal
CAUTION
Do not bend the fiber optic cable
► Make sure you do not bend the fiber optic cable. These could otherwise become
cloudy or break and no longer transmit the signal properly.
CAUTION
Move the conveyor sides carefully!
The clamping and guide rails are a key stabilizing element for the conveyor side, which is
then less stable once they have been removed.
► Move the opened conveyor sides very carefully.
Make sure that the rails are always pushed equally on the left and right.
Also make sure that you do not distort the rails.
► Switch off the machine, disconnect it from the power supply and secure it to prevent
unauthorized reactivation.
1.2 "Preparatory work..." [}16]
► Dismantle the clamping or guide rail on the fiber optic cable.
7.7.3 "Replacing the Clamping Rail/Belt Guidance" [}259]
► Loose the screw fastening the fiber optic wire to the clamping or guide rail. The fiber optic wire
is either fixed with a nut (M5.5) or a grub screw, depending on the installation location.
► You may want to dismantle more clamping and guide rails so that you can thread the fiber op-
tic cable out of the trailing cable. You might also need to dismantle the transmitter/receiver for
the laser light barrier.
7.8.1 "Replacing the Laser Light Barrier for the Transmitter/Receiver" [}263]
► You might want to move hexagonal shafts in order to create more room for movement.
7.6.6 "Replacing the hexagonal shaft" [}253]
7 Conveyor
7.8 Laser light barriers, fiber optic cable and PCB sensors
276 Service Manual SIPLACE X-Serie S 06/2019
Fig.350: Holding plate
► Remove the screws(2) fastening the
bracket(3) to the top end of the trailing
cable(1) on the conveyor side.
► For better access, you can remove the
screws fastening the trailing cable to
the bracket.
Fig.351: Cover plates (example of SX1/SX2 shown)
► Dismantle the two cover plates(1)
and(2) under the trailing cable. To do
this, loosen the four fastening screws
for each and then remove the cover
plates.
Fig.352: Opened trailing cable
► Open the trailing cable.
NOTICE!
There is also a protective tape in the
trailing cable. This separates the fiber
optic cable from the cables.
.
CAUTION!
Make sure you do not bend the fiber
optic cable. This will otherwise become
dull and no longer transmit the signal
properly.
.
► For better access, you can remove the
screws on the bottom of the conveyor.
► Unthread the fiber optic cable from the
conveyor side and the trailing cable.
► Unplug the fiber optic cable from the fiber optic sensor. To do this, open the fiber optic lock on
the sensor.
7.8.7 "Replacing the Fiber Optic Cable Sensor" [}281]
7 Conveyor
7.8 Laser light barriers, fiber optic cable and PCB sensors
Service Manual SIPLACE X-Serie S 06/2019 277
Installation
► Follow the removal instructions in reverse order for installation. Also observe the following
instructions:
●
Shorten the fiber optic cable with the cutter tool provided (see below). Make sure you give the
fiber optic cable enough play.
●
Replace any open cable ties.
Make sure that the cable ties and the heads of the cable ties do not rub against any parts
when you do this.
●
Check the setting for the transmitter/receiver and correct if necessary.
7.8.3 "Checking the laser light barrier" [}270]
7.8.4 "Correcting the Laser Light Barrier Setting" [}273]
●
Teach the PCB sensors.
Fig.353: Cutter tool
1. Cutter tool
2. Cutting aperture
3. Fiber optic cable
CAUTION!
Make sure that you only use each cut-
ting aperture once. If they are used
more than once, good quality cuts can
not be guaranteed.
.