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S tud ent Guid e HS-50 A dvanced I E dition 06/2 002 1 1 P neumatic Cutt er and Empty- T ape Du ct 39 11.6.7 .2 Installi ng the Pro ximity Sw i t ch NO TE: Ins ta lling the proxim ity switc h pr ecis ely ( e xa ctly on, …
Edition 06/2002 Student Guide HS-50 Advanced I
11 Pneumatic Cutter and Empty-Tape Duct
38
11.6.7 Exchanging the Inductive Proximity Switch
WARNING
You might cut yourself on the blades and the tape deflector.
Never reach into the pneumatic cutter from below or into the empty-tape duct from above. 11
11.6.7.1 Removing the Proximity Switch
The cutter remains installed in the machine.
à Turn the machine and then the compressed air ON.
à Disconnect the movable component changeover table from the machine and move it out of the
machine.
à Turn the machine OFF, disconnect the machine from the mains and turn off the flow of com-
pressed air at the compressed air. Actuate the needle valve on the compressed air unit to bleed
the compressed air lines (see DANGER text in Section 11.1).
à Remove the cover from the control board (see Fig. 11.6.5 -> 14).
à Carefully undo the corresponding cable tie (left or right) on the outside of the control board box
(see Fig. 11.6.5 -> 10).
-> Do not damage the cables in the process.
à Using a fine-tip permanent marker, precisely mark on the short-stroke cylinder the specified
position of the proximity switch that is to be exchanged.
à Disengage the plug-and-socket connection of the faulty proximity switch on the control board
(allocation: see Fig. 11.6.5).
If you loosen more than one of the plug-and-socket connection simultaneously, mark the allo-
cation.
à Take the cover off the cable pit (see Fig. 11.6.6 -> 5).
à Undo the screw fastening the proximity switch to the short-stroke cylinder (1 screw: see Fig.
11.6.3 -> 4 or 5) and remove the proximity switch including the cable.
Student Guide HS-50 Advanced I Edition 06/2002
11 Pneumatic Cutter and Empty-Tape Duct
39
11.6.7.2 Installing the Proximity Switch
NOTE:
Installing the proximity switch precisely (exactly on, not next to or over the marks) will save you the
need to make a subsequent time-consuming correction (see below "If the switching point of the
proximity switch is not correct..."). 11
à Install the new proximity switch (Item no.: see Section 11.2) precisely in the position you
marked on the short-stroke cylinder with the permanent marker.
-> Tighten the screws to the correct torque -> see Table, Fig. 11.4.2.
à Lay the cable in the cable pit and make the plug-and-socket connection to the proximity switch
on the control board with correct allocation to the proximity switch left/right and front/back (see
Fig. 11.6.5) -> Push the excess lengths of cable into the cable pit.
à Use a cable tie to fasten the cables running to the cable pit to the fixing pedestal on the control
board box (see Fig. 11.6.6 -> 10).
The strain on the cables / plug-and-socket connections must be relieved (see Fig. 11.6.6 -> 8).
à Place the cover back on the control board (see Fig. 11.6.6 -> 9).
à Install the cover on the cable pit (see Fig. 11.6.6 -> 5).
DANGER
Higher risk of accident exists when working with the SITEST program, particularly from the cut-
ter. Comply with the instructions in the DANGER text in Section 11.6.11 "Final Steps".
à Perform the "Final Steps" including the substep "Load the SITEST program and initiate the cut-
ting strokes" (see Section 11.6.11).
If the switching point of the proximity switch is not correct yet (because it isn´t
mounted in the exact position):
à Turn the machine OFF, disconnect the machine from the mains and turn off the flow of com-
pressed air at the compressed air unit. Actuate the needle valve on the compressed air unit
to bleed the compressed air lines (see DANGER text in Section 11.1).
à Now push the proximity switch precisely to the marked position and screw it tight in this po-
sition.
-> Tighten the screws to the correct torque -> see Table in Fig. 11.4.2.
à Perform the appropriate “Final Steps” (see Section 11.6.11).
Edition 06/2002 Student Guide HS-50 Advanced I
11 Pneumatic Cutter and Empty-Tape Duct
40
11.6.8 Exchanging the Empty-Tape Duct Assembly
If the empty-tape duct has been damaged (e.g., dented in) due to the component table being
moved into the machine improperly, you can exchange it in its entirely or just the faulty compo-
nents (baffle inside / outside, reject box).
WARNING
You might cut yourself on the blades and the tape deflector.
Never reach into the pneumatic cutter from below or into the empty-tape duct from above. 11
à Turn the machine and then the flow of compressed air ON.
à Disconnect the movable component changeover table from the machine and move it out of the
machine.
à Turn the machine OFF, disconnect the machine from the mains and turn off the flow of com-
pressed air at the compressed air. Actuate the needle valve on the compressed air unit to bleed
the compressed air lines (see DANGER text in Section 11.1).
à Loosen the screws fastening the nozzle changer, lift it up somewhat and hold it in this position.
à Unplug the electrical cable and the pneumatic hose of the nozzle changer.
à Carefully put the nozzle changer down.
à Loosen the screws fastening the empty-tape duct assembly (see Fig. 11.4.1 -> 11, 9) and lift
the duct out of the machine.
à If you only want to exchange the faulty baffle inside/outside and/or the reject box, proceed as
indicated in Section 11.6.9.
à Screw the "empty-tape duct assembly" (Item no.: see Section 11.2) on the machine base (2
screws each on left and right, M4 x 16).
-> Tighten the screws to the correct torque -> see Table in Fig. 11.4.2.
WARNING
The following check can only be conducted from the bottom of the cutter after it has been installed
in the machine. Wear thick protective gloves; there is a risk of injury from the blades and the edge
of the tape deflector. 11
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