Technical_reference - 第132页
Technical Service Manual 132 Revision Dat e: August 2004 TEMPERAT URE PROFILE PLOT T ING (PRECISION PRO FILING) ) Standard, (installed on all ovens ) ! An option, (NOT installed on all ovens ) Plotting a temper ature pro…
Technical Service Manual 131 Revision Date: August 2004
4. Turn the bottom potentiometer (one) on the PLC ½ turn clockwise. Touch and hold the free end of the test wire to the
IN 2 terminal on the PLC. Verify that OUT 1 remains off approximately 30 seconds after the test wire is moved off of
the IN 2 terminal.
5. Return the bottom potentiometer (one) on the PLC to the fully counter-clockwise setting.
6. Temporarily disconnect the wire(s) connected to terminal I 7 on the PLC. Verify that after 30 seconds OUT 1 is off on
the PLC to indicate that the oven is no longer ready to accept product on lane #2.
7. Touch and hold the free end of the test wire to terminal I 5 on the PLC and verify that OUT 4 on the PLC comes on
and remains on until the test wire is removed to indicate that product is available to a downstream machine.
8. Unplug the cheater cord and remove all of the connections to the PLC. Lightly tighten all the screws before returning
the unit to its box.
End of stand-alone test.
Technical Service Manual 132 Revision Date: August 2004
TEMPERATURE PROFILE PLOTTING (PRECISION PROFILING)
) Standard, (installed on all ovens) ! An option, (NOT installed on all ovens)
Plotting a temperature profile provides a graphic display of temperature relative to time and distance at one or more
points on a test PCB going through the oven. It also determines values of Peak Temperature, Liquidous Time and
Heat/Cool slope. This helps fine tune the system for optimization of individual profile parameters on the PCB.
Oven Profiling, Profile Objectives and Definitions, Preparing Thermocouples & PCBs, and Plotting a Temperature
Profile are described in Process Manual
.
Technical Service Manual 133 Revision Date: August 2004
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THE INFORMATION CONTAINED IN THIS MANUAL IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
AND IS CORRECT TO THE BEST OF OUR KNOWLEDGE AT THE TIME OF PRINTING. VITRONICS-SOLTEC
CORPORATION ASSUMES NO RESPONSIBILITY FOR LOSS OR DAMAGES RESULTING FROM THE USE
OF THIS MANUAL EXCEPT AS EXPLICITLY STATED IN THE VITRONICS-SOLTEC OVEN WARRANTY
STATEMENT.
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