00192368-01.pdf - 第46页
Vacuum Tooling for HS-50 Retrofit Instructions / User Manual 7 Troubleshooting Edition 12/00 46 this wo rk by Sie mens (sectio n 4). - Some ot her electr ical inter ruption -> No tify Sie mens SMD Ser vice. ± PCB is n…
Retrofit Instructions / User Manual Vacuum Tooling for HS-50
Edition 12/00 7 Troubleshooting
45
Install wiring with correct allocation -> Set time interval (setting to be made only be persons
especially instructed for this work by Siemens, see section 4).
– Some other electrical interruption inside machine base -> Notice Siemens SMD Service.
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NOTE:
Absence of or insufficient vacuum pressure to hold the PCB via “vacuum tooling” may result in a
deviation in the placement pattern (components are in an undefined position or are absent).
±
Vacuum not present
– Interface connector for the option is not plugged in. -> Plug it in.
– Coding of option vacuum tooling is not connected.
WARNING
Do not actuate the width adjustment if the interface connector in (see Section 5.2)!
– 5.5 bar compressed air on option is not connected. -> Connect to option’s vacuum genera-
tor (see Fig. 3 - 1).
– 5.5 bar compressed air branch between compressed air unit and option is interrupted
-> Check hose
-> Check whether the compressed air on the option’s (manual) shut-off cock is switched off
and switch it on if applicable.
– If 5.5 bar compressed air on compressed air unit is shut off too long -> Compressed air sen-
sor of the compressed air unit may be damaged.
– Solenoid valve (on the option’s bottom plate) does not switch -> Pull out interface connector
(allocation of connector: see section 9) -> Isolate interruption in “vacuum tooling”. Possible
causes are:
- Poor contact (loose contact) of interface connector -> Make certain that securely
seated -> If this cannot be done, notify Siemens SMD Service.
- Faulty solenoid valve -> Exchange solenoid valve (Art. No. see Section 8).
- Wiring error (after exchange) on the assembly “Drive of vacuum tooling” -> Check
wiring and correct.
- Fault in the appropriate drive -> Exchange drive -> Correct the allocation of the
wiring -> Set time interval (setting to be made only by persons especially trained for
Vacuum Tooling for HS-50 Retrofit Instructions / User Manual
7 Troubleshooting Edition 12/00
46
this work by Siemens (section 4).
- Some other electrical interruption -> Notify Siemens SMD Service.
±
PCB is not being sucked against suction cup correctly:
– Vacuum plate (top plate of tool) and/or suction cups are not clean / Components may be
lying around -> Perform maintenance (Section 9).
– Required vacuum branches are switched off and/or branches which are not necessary are
switched on (depending on the version: see Fig. 3 - 1) -> In instances where manual shut-
off cocks are adapted to PCB length, open/close the appropriate branch -> In instances
where automatic shut-off valves are involved, check the function of the valve and exchange
it if necessary.
– Several suction cups are not completely covered -> No air present (see Section 5).
– Vacuum branch(es) not sealed -> Tighten screw connections (including those on bottom of
the top plate).
– Option placed incorrectly -> PCB against stopper must be drawn against the the suction
cups optimally by vacuum.
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±
Vacuum is not reduced / not reduced in time
– Time interval set for “Reduce vacuum” is too short -> Setting to made only by persons who
have been especially trained for this by Siemens (see Section 5).
Retrofit Instructions / User Manual Vacuum Tooling for HS-50
Edition 12/00 8 Spare Parts
47
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1 Solenoid valve, Art. No. 00309936-01
1 Silencer, Art. No. 00047900-01
1 Venturi nozzle, Art. No. 00333438-01
Suction cups (in-house spare part, Motorola)
NOTE:
The procedure to be followed when exchanging these spare parts is not described here because
these jobs must be performed only by appropriately qualified personnel.
If such are not available, please contact Siemens SMD Service.