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07/2002 Editio n Student G uide HS -50 Advanc ed II 14 Conveyor System 48 CAUTION O Make certa in that the proxi mity sw itch i s not mou nted too high. T o chec k, care fully pus h the g antry/pl acement h ead ov er the…
Student Guide HS-50 Advanced II 07/2002 Edition
14 Conveyor System
47
Key to Fig. 14.3.10
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NOTE:
For the exchange the proximity switch cable must be run on a weaving course as far as the SLIO
module on PCB1 or PCB2, as the case may be (layout: see ). This may be somewhat complicated
due to the routing of cable inside the machine base.
Contact Siemens SMD Service, if you wish, or proceed as described below. 14
➠ Check wether the proximity switch has sustained any mechanical damage which may have
been caused by the JDQWU\. If so, the proximity siwitch was installed incorrectly (too high).
➠ If the proximity switch is XQGDPDJHG, first eliminate other causes such as too great an actua-
toin distance or a poor X13 plug-and-socket connection on the SLIO module (see data below).
➠ Prior to any removal, ascertain the assembly dimension of the XQGDPDJHGproximity switch
(see Fig. 14.3.10 -> %).
➠ Loosen the clamping unit (see Fig. 14.3.10) holding the proximity switch on the mount and pull
out the proximity switch.
➠ Take of the corresponding cable duct cover and FDUHIXOO\remove the cable ties.
➠ Check whether it would be helpful to pull in the cable for the new proximity switch with the aid
of the old one, at least in some area.
➠ Proceed appropriately and FDUHIXOO\run the wiring of the proximity switch on a weaving
course as far as the "SLIO module PCB1" or "...PCB2" (layout: see ).
➠ Disconnect plug-and-socket connection ; (see circuit diagram 6/,2PRGXOH3&%or
3&%).
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➠ Note the different cable lengths for the proximity switches of conveyor 1 and 2.
➠ Run the proximity switch cable from the SLIO module on PCB1 or PCB2 to the proximity switch
mount or vice versa.
➠ Install any new proximity switch in the mount in such a manner that the actuation surface is
pointed XSand the assembly dimension (dimension % -> see Fig. 14.3.10) has been reset.
Clamp the proximity switch in the mount in this position.
A) PCB transport direction B) Assembly dimensions for proximity switch
(measured before removal)
C) Assembly position for retaining bracket
1) Mount for width proximity switch LPH S50 2) 1 hexagonal socket head cap screw
M 3 x 12
3) Proximity switch for position width adj. sys-
tem for conveyor 2 or 1 (conveyor 2 is
shown)
4) Screws for fastening the mount
2 hexagonal socket head cap screws
M 3 x 45
07/2002 Edition Student Guide HS-50 Advanced II
14 Conveyor System
48
CAUTION O
Make certain that the proximity switch is not mounted too high.
To check, carefully push the gantry/placement head over the proximity switch manually. 14
➠ Where applicable, mount the retaining bracket for the proximity switch in its earlier position,
Fig. 14.3.10 -> &).
➠ Make the plug-and-socket connection of X13 to SLIO module on PCB1 or PCB2.
Note: The strain on the wiring must be relieved after the cable ties are attached.
➠ Re-attach the cable ties and insert the cable duct cover.
➠ Perform the appropriate )LQDOVVWHSVLQFOXGLQJ)XQFWLRQ&KHFN(see section 14.4). Check
the function of the "Proximity switch for position of width adjustment system".
– The proximity switch must not be damaged when the gantry is moved.
– If the proximity switch is not being actuated, correct the triggering distance of the proximity
switch.
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The sensing heads for the sonar proximity switches are positioned as follows (see ):
– In placement areas 1 and 2 or 3 and 4:
in the hold in the stopper base unit.
– On the input and intermediate conveyor (conveyor 1 / 2):
In the mount for the sonar proximity switch on the motor mount of the pertinent conveyor drive.
– On the output conveyor (conveyor 1 / 2):
With a bracket on the fixed side of the conveyor.
NOTE:
The assembly "Sonar proximity switch" consists of the sensing head and of theDPSOLILHU(see )
and the cable (not removable on sensing head).
It is also possible to exchange just the amplifier RUthe sensing head of the sonar proximity
switch.
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➠ To remove the sensing head in the placement area first remove the Liftig table as described in
section 14.3.8.1.
➠ Use the caliper gage to ascertain the PRXQWSRVLWLRQof the sonar proximity switch sensing
head that is to be removed (measured to front surface of the proximity switch) and record the
dimensions.
Student Guide HS-50 Advanced II 07/2002 Edition
14 Conveyor System
49
In case of a problem with the sonar proximity switch sensing head:
➠ Loosen the clamping unit of the sonar proximity switch sensing head and pull out the sensing
head.
➠ For the electrical isolation, proceed through the following steps>
➠ Lift off the cover of the cable duct in question.
➠ Carefully (!) remove the corresponding cable ties.
➠ Run the cable of the faulty sonar proximity switch sensing head carefully (!) so that it
weaves its way as far as the sonar proximity switch amplifier (layout: see ).
➠ Pull off the plug-and-socket connection of the sensing head at the allocated amplifier (see ).
In case of a problem with the sonar proximity switch amplifier:
➠ Pull the cable of the sensing head at the faulty amplifier and loosen the screw connection of
the cable on the bottom of the amplifier.
➠ Loosen the screws fastening the corresponding amplifier package (2 hexagonal socket head
cap screws M 5 x 70, see ).
-> The RUGHU of the amplifiers in the package must be maintained.
➠ Remove the faulty amplifier.
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➠ Where applicable, push the new sonar proximity switch VHQVLQJKHDG into the hole such that
the DVVHPEO\GLPHQVLRQmeasured is restored. Clamp the sensing head H[DFWO\in this po-
sition.
➠ Where applicable, insert the new sonar proximity switch DPSOLILHUV into the amplifier package
in the correct order and screw the package tight (see ).
Make the plug-and-socket and screw connection.
➠ Carry out all further assembly steps in the reverse order to that during removal.
➠ Remove all tools, etc., from the working area of the machine.
➠ Where applicable, fold down the transmission lever on the lifting table motor mount (see Fig.
14.3.5: illustration bottom left).
➠ Install the lifting table as described in section 14.3.9.2.
➠ Carry out the pertinent )LQDOVWHSVLQFOXGLQJIXQFWLRQFKHFN(see section 14.4). Use the
"Setting Instructions for HS-50" to calibrate the sonar proximity switch amplifier.