00900194-01_SM_ASM ProcessLens_Dual-lane_EN.pdf - 第80页
4 Replacing spare parts at the conveyor 4.6 Fiber optic cables and laser light barriers 80 Service Manual ASM ProcessLens Dual-lane 09/2018 Troubleshooting ► In the station software, activate all fiber optic cables (tran…
4 Replacing spare parts at the conveyor
4.6 Fiber optic cables and laser light barriers
Service Manual ASM ProcessLens Dual-lane 09/2018 79
4.6.3 Repairing the fiber optic cables
To avoid machine downtimes, it is possible to repair fiber optic cables temporarily, using the repair
hose.
NOTICE
Repair hose for fiber optic cable LL3-TV05
► The repair hose may only be used for short periods to avoid machine downtimes.
► The repair hose may only be used once per fiber optic cable.
► The fiber optic cable must be replaced during the next repair or maintenance cycle.
NOTICE
No guarantee
► No guarantee is given if the fiber optic cable is repaired using the repair hose.
► There is no long-term experience with the repair hose.
► Depending on the board width, the intensity of the light beam may diminish in such a
way that an evaluation is no longer possible.
► The repair hose must not be bended. For this reason, there is an additional danger of
rupture after the repair, in areas where the fiber optic cable is routed in narrow radii.
► If another rupture of the fiber optic cable occurs and it is not possible to replace the whole
fiber optic cable, replace the defective part of the fiber optic cable in such a way that only one
repair hose is used.
Parts
03092407-xx Fibre optic cable LL3-TV05 2m (including cutting tool for fibre optic cables)
03092408-xx Fibre optic cable LL3-TV05 3m (spare part) (including cutting tool for fibre optic
cables)
03122383-xx Hose PUN 3x0.5-SW, 100mm (repair hose)
A repair hose is supplied with each fiber optic cable. The repair hose is not
available as an individual spare part.
Sheet with yellow glue dots
Equipment and tools
03017821-xx Loctite 406 (instant glue highly viscous)
03019481-xx Dosage tip for Loctite
00372972-xx Protective latex gloves
00353832-xx Allen key set
Cable tie
Side cutter
4 Replacing spare parts at the conveyor
4.6 Fiber optic cables and laser light barriers
80 Service Manual ASM ProcessLens Dual-lane 09/2018
Troubleshooting
► In the station software, activate all fiber optic cables (transmitters). These may need to be re-
calibrated without boards in the conveyor.
► A red light must be visible for the transmitters.
If no light is visible at the transmitter, there is probably an error.
► As a cross-check, you can switch the transmitting and receiving fiber optic cable at the corres-
ponding fiber optic sensor (WLL180T-F preconfigured SXa [03093295‑xx] or WLL180T-M pre-
configured SXa [03093294‑xx]).
4.6.4 "Replacing the fiber optic sensor" [}82]
NOTICE
Do not confuse the transmitter with the receiver
► Make sure not to confuse the transmitting and receiving fiber optic cable. If you do,
other optical sensors may be sporadically affected.
NOTICE
Display on the fiber optic sensors
The display on the fiber optic sensors corresponds to the currently measured intensity.
► The intensity can vary depending on installation position, cable length and environ-
mental conditions.
► The value shown should be not less than 100.
► The fiber optic sensor reacts to intensity deviations during operation.
Performing the repair
► Use the software or manually move the conveyor rail into a position which allows you best
access.
– 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.
► Remove the fiber optic cable from the conveyor rail.
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 fiber optic sensor.
One repair hose may be used 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:
– Optical system of the fiber optic cable damaged
– Fiber optic cable pinched in conveyor rail
– Fiber optic cable ruptured (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 rail, the effort for finding the error cause is often identical to the effort
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 of the fiber
optic cable.
4 Replacing spare parts at the conveyor
4.6 Fiber optic cables and laser light barriers
Service Manual ASM ProcessLens Dual-lane 09/2018 81
Fig.63: 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.
.
Fig.64: Repairing the fiber optic cables
► 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 displayed value must be above 100.
Check the value for different 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.