00197042-04_SM_X-Serie-S_Customer_EN - 第275页

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: ● Boa…

7 Conveyor

7.8 Laser light barriers, fiber optic cable and PCB sensors

274 Service Manual SIPLACE X-Serie S 06/2019

7.8.5 Replacing the fiber optic cable

NOTICE

Repairing the Fiber Optic Cable

Depending on the machine and the installation position, the complete replacement of the

fiber optic cable may take approx. 2 to 2.5 hours. To avoid downtimes, it is possible to per-

form a short-term repair using the repair hose. Observe the instructions in section 7.8.6

"Repairing the fiber optic cables" [}278].

Parts, equipment and tools

●

Fiber optic cable LL3-TV05 3 m [03092408-xx]

(two fiber optic cables per pack incl. cutter tool)

NOTICE

Transmitter/receiver:

Both fiber optic cables are technically identical and be used either as transmitters or receiv-

ers.

Overview

Fig.349: Overview of fiber optic cable sensor

The fiber optic cable sensors are located at

locations 1 and 4, under the covers of the

conveyor control(1) and(2).

The sensors for the input conveyor, place-

ment area 1 and intermediate conveyor can

be found at (1).

The sensors for placement area 2 and the

output conveyor can be found at (2).

The fiber optic cable sensors are separated

into master (M) and slave (F).

The receiver is always at the top of the

sensors and the transmitter at the bottom.

The transmitters are located on sides B and

The receivers are located on sides A and C.

Conveyor lane Designation Location

Lane 1 1.1 Input belt

1.2 Placement area 1

1.3 Intermediate belt

1.4 Placement area 2

1.5 Output belt

Lane 2 2.1 Input belt

2.2 Placement area 1

2.3 Intermediate belt

2.4 Placement area 2

2.5 Output belt

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]