80S-20贴片机 - 第254页

7 Components Table SIPLACE 80 S-20/F4 Service Manual 7.7 Components Table Pneum atics, Components Table Com pressed Air S upply Edition 03/97 7 - 52 ● There ar e 2 po ssibil ities for fault loca tion : – Checking the mod…

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SIPLACE 80 S-20/F4 Service Manual 7 Components Table
Edition 03/97 7.7 Components Table Pneumatics, Components Table Compressed Air Supply
7 - 51
7.7 Components Table Pneumatics, Components
Table Compressed Air Supply
7.7.1 Tools and Spare Parts Required
Tools
Screwdriver for socket-head cap screws, sizes 2.5, 3 and 6
Crosstip screwdriver, size 1
Side-cutting pliers
Transparency marker
Auxiliary Measuring and Test Equipment
Service manometer, quick-release coupling, from item no. 00310152-01 (included in the SIPLACE 80 S
service case)
Location tester, from item no. 00304770-03
If required, external power supply, from item no. 00142011-01
Spare Parts
Pressure control valve PWP-B1888, from item no. 00309633-01
Sealing ring O-M5, from item no. 00201148-01
Plastic hose PL-4 PE, blue, from item no. 00047551-01, cable lacings
Connector plug KS-PK-4-M5, from item no. 00200243-01
Pneumatics adapter (including o-rings), from item no. 00306678-01
O-ring 5*1 NBR 70A, from item no. 00305213-01
Pressure spring 0.63*5.63*18.5, from item no. 00305239-01
7.7.2 Fault Location: Control / Functioning of the Compressed Air
Supply Module
NOTE
Error message No. 43 can point to a fault in the compressed air feeder module (= feeder module conveying
using compressed air), in the components table pneumatic system or in the components table compressed air
supply.
Start fault location by referring to the Section 7.2 ’Fault Characteristics’.
Check on the basis of the fault situation - that is, when error No. 43 is displayed - whether the output signal is
present at the corresponding connection socket of the communications unit (= interface of the components
table and the components modules) or whether there is a fault in the module (for example, solenoid valves,
compressed air cylinder defective, electrical interruption in the module).
7 Components Table SIPLACE 80 S-20/F4 Service Manual
7.7 Components Table Pneumatics, Components Table Compressed Air Supply Edition 03/97
7 - 52
There are 2 possibilities for fault location :
Checking the module by connecting it to the (new) external power supply - if the customer has this, or
Using the location tester to test at the connection socket of the communications unit.
7.7.2.1 Checking with the External Power Supply
Make sure that the clamping clips (see Fig. 7.7.2) of the compressed air supply module which is not
transporting correctly is properly closed and the module thus being pressed correctly against the sup-
port strip.
Pull out the plug of the problematic compressed air supply module from the connections panel of the
communications unit. The module remains in place at the components table, the machine switched
on, the compressed air at the feeder module is on.
Connect the module to the external power supply using the 30 VDC socket.
Give the control signal for switching the solenoid valves (in the module) at the corresponding push-
button of the external power supply.
If the module now conveys properly (= solenoid valve in the module switches), continue location
of the electrical interruption in the communications unit (see the Section 7.5 ’Communications
Unit’).
If the module does not now convey, carry out fault correction in the module as described in the
service manual for this module.
7.7.2.2 Testing with the Location Tester:
NOTE:
For a more precise check of locations 1 or 3, or of a particular track, use the SITEST program. Select for
example "Component table" "Single functions" "Track" "Output" and check the outputs at the location
tester which is connected (see text which follows) or test the entire location (tracks 1 to 120) by selecting
"Component table" "Continuous run" "Output".
DANGER OOO
The SITEST program may only be used by authorized persons who have been specially trained in its use at
Siemens AG (see the detailed DANGER notice in Section 7.6.2, page 7 - 30).
SIPLACE 80 S-20/F4 Service Manual 7 Components Table
Edition 03/97 7.7 Components Table Pneumatics, Components Table Compressed Air Supply
7 - 53
Pull the plug of the compressed air feed module which is not conveying out of the connection socket of the
communications unit. The module remains in place at the components table.
Connect the location tester to the connection socket of the communications unit which is now becoming
free. For detailed information on using the location tester, please refer to the Section 7.5 ’Communications
Unit’.
You must now create the fault once again in order to set the output signal for the feed module.
The assumption here is that when the "Track empty" error message is displayed, the track is not actu-
ally empty but that there is a pick-up error.
When the "Track empty" error message is displayed select: Component feed Fill all (setter pass-
word) Return. The corresponding track errors will be deleted.
Position the location tester so that you can read it easily. Start the placement sequence and by doing
so generate once more error No. 43. At the same time check the "A1" LED on the location tester:
If the "A1" LED is not illuminated, this may indicate an interruption in the communications unit.
Proceed as described in the Section 7.5 ’Communications Unit’.
If the "A1" LED of the location tester is on, this means the control signal is reaching the socket.
A fault in the compressed air feed module can be excluded by connecting it to the external power
supply (see section above), which will mean that there must be a fault in the 5 bar compressed air
branch. Continue work with the following section.
7.7.3 Fault Location and Correction: Compressed Air Unit and
Components Table Pneumatic System
If you have already determined that the fault is not in the module or in the communications unit (see pre-
ceding section), select "Abort placement" in order that all of the components are returned which were
picked up at the placement heads during the course of the ensuing reference run. The placement heads
move into the waiting position above the corresponding components loading point.
Remove the cover over the compressed air unit from the machine base (undo 2 special socket-head cap
screws using a size 3 socket spanner).
Check the 5.6 bar operating pressure (see User Manual, Section 9).
Check all of the screwed hose connections of the 5 bar compressed air branch which supplies the feed
module:
At the pressure regulating valve of the compressed air unit (see Fig. 7.7.1),
at the block, components table pneumatic system, on the right of the machine base (see Fig. 7.7.1)
and
at the components table compressed air supply (see Fig. 7.1.4 in the section "Overview").
If the air is leaking at the block, switch off the machine and replaced the damaged sealing rung (see Fig.
7.7.1).
If there are no leaks at any point up to the connection to the components table compressed air supply,
switch off the machine at the main switch and then undo the threaded hose connection at the pressure reg-
ulating valve of the compressed air unit (for components table pneumatic system connections, see Fig.
7.7.1).
Connect the service manometer by the threaded hose connection directly to the pressure regulating valve.
Switch on the machine at the main switch (the control system remains off). Compressed air is on.
The service manometer must show 5 bar precisely; if it does not, set the correct pressure using the adjust-
ment screw (screwdriver for socket-head screws):