Technical_reference - 第3页
Technical Service Manual 3 Revision Dat e: August 2004 E - A SSOCIATED SUBSYSTEM S _____________________________________________________ 88 TRUE N2 / A IR SW ITCHING ------------------------------------------------------…
Technical Service Manual 2 Revision Date: August 2004
TABLE OF CONTENTS
TABLE OF CONTENTS _______________________________________________________________ 2
PURPOSE OF THIS MANUAL & WHO SHOULD USE IT ____________________________________ 4
CONTROL PANEL SYMBOLS__________________________________________________________ 5
GLOSSARY OF TERMS GLOSSARY OF TERMS & MEASUREMENT CONVERSIONS ___________ 6
MEASUREMENT CONVERSIONS------------------------------------------------------------------------------------------------------------------8
A - CONTROL SYSTEM OPERATION ____________________________________________________ 9
OVEN CONTROL SYSTEM OVERVIEW----------------------------------------------------------------------------------------------------------9
HEAT CONTROL OVERVIEW---------------------------------------------------------------------------------------------------------------------- 10
POWER DISTRIBUTION OVERVIEW------------------------------------------------------------------------------------------------------------10
COMPUTER AND CONTROLLER OVERVIEW ----------------------------------------------------------------------------------------------- 11
CONVEYOR OVERVIEW ---------------------------------------------------------------------------------------------------------------------------- 12
FAN CONTROL OVERVIEW------------------------------------------------------------------------------------------------------------------------ 13
HEAT CONTROL OVERVIEW---------------------------------------------------------------------------------------------------------------------- 14
HEATING CELL DESCRIPTION ------------------------------------------------------------------------------------------------------------------- 16
B - HEATING SYSTEM _____________________________________________________________ 18
PROBLEMS AND POSSIBLE SOLUTIONS (The most likely cause is listed first)-------------------------------------------- 18
HEATING PROBLEMS ------------------------------------------------------------------------------------------------------------------------------- 18
HEATER TESTING PROCEDURE----------------------------------------------------------------------------------------------------------------- 36
TEST PROCEDURE FOR HEATER GROUND CONTINUITY-----------------------------------------------------------------------------40
MAXIMUM HEATERS ON---------------------------------------------------------------------------------------------------------------------------- 40
MAXIMUM PHASE IMBALANCE------------------------------------------------------------------------------------------------------------------ 40
THERMOCOUPLES ----------------------------------------------------------------------------------------------------------------------------------- 40
TEST PROCEDURE ----------------------------------------------------------------------------------------------------------------------------------- 40
HEATER PLATE REPLACEMENT ---------------------------------------------------------------------------------------------------------------- 41
TEST PROCEDURE FOR HEATER CONTROL-----------------------------------------------------------------------------------------------41
CELL FAN MOTORS----------------------------------------------------------------------------------------------------------------------------------42
TEST PROCEDURE FOR MOTOR RESISTANCE ------------------------------------------------------------------------------------------- 42
CELL FAN MOTOR ROTATION CHECK-------------------------------------------------------------------------------------------------------- 42
VERIFYING CELL FAN SPEED-------------------------------------------------------------------------------------------------------------------- 42
CELL FAN ASSEMBLY REMOVE AND REPLACE PROCEDURES-------------------------------------------------------------------- 43
HEATER REMOVE AND REPLACE PROCEDURES---------------------------------------------------------------------------------------- 49
C - CONVEYOR____________________________________________________________________ 53
CONVEYOR TYPES----------------------------------------------------------------------------------------------------------------------------------- 53
PROBLEMS AND POSSIBLE SOLUTIONS (The most likely cause is listed first)---------------------------------------------- 56
CONVEYOR PROBLEMS---------------------------------------------------------------------------------------------------------------------------- 56
CONVEYOR BELT, CHAIN & RAIL SERVICE------------------------------------------------------------------------------------------------- 69
REMOVE AND REPLACE CONVEYOR BELT ------------------------------------------------------------------------------------------------69
REMOVE AND REPLACE CONVEYOR RAILS AND CHAINS---------------------------------------------------------------------------- 74
DRIVE MOTOR SERVICE & REPLACEMENT ------------------------------------------------------------------------------------------------ 75
ENCODER SERVICE & REPLACEMENT------------------------------------------------------------------------------------------------------- 77
D- ELECTRICAL POWER & COMPUTER _______________________________________________ 78
ELECTRO - STATIC DISCHARGE PROCEDURES ( ESD)-------------------------------------------------------------------------------- 78
A.C. & D.C. POWER SUPPLIES -------------------------------------------------------------------------------------------------------------- 80
OVEN CONTROLLER _______________________________________________________________ 82
ADDRESSING DIP SWITCHES ON DI BOARD----------------------------------------------------------------------------------------------- 83
ADDRESSING LINKS ON AI BOARD------------------------------------------------------------------------------------------------------------ 83
CONTROLLER STATUS ----------------------------------------------------------------------------------------------------------------------------- 83
RS-232 SERIAL COMMUNICATION CHECK-------------------------------------------------------------------------------------------------- 84
COMPUTER SYSTEM -------------------------------------------------------------------------------------------------------------------------------- 86
CONTROL CIRCUIT----------------------------------------------------------------------------------------------------------------------------------- 86
ELECTRICAL GROUNDING OF OVEN---------------------------------------------------------------------------------------------------------- 87
Technical Service Manual 3 Revision Date: August 2004
E - ASSOCIATED SUBSYSTEMS _____________________________________________________ 88
TRUE N2 / AIR SWITCHING ------------------------------------------------------------------------------------------------------------------------ 88
BATTERY BACK-UP FOR PC, CONTROLLER, CONVEYOR, AND HOOD LIFTS------------------------------------------------- 89
PRODUCT TRACKING AND ALARM------------------------------------------------------------------------------------------------------------- 89
COMPUTER CONTROLLED EDGE-RAIL LUBRICATION--------------------------------------------------------------------------------- 90
AUTO CHAIN LUBE TANK/PUMP ASSY ------------------------------------------------------------------------------------------------------- 91
BOARD SUPPORT------------------------------------------------------------------------------------------------------------------------------------- 93
CONTROLLED COOLING--------------------------------------------------------------------------------------------------------------------------- 93
CONTROLLED EXHAUST SYSTEM (AIR ONLY OR OVENS EQUIPPED WITH AIR SWITCHING)------------------------- 94
INTEGRATED EXHAUST STACK FILTER------------------------------------------------------------------------------------------------------ 95
FLUX EVACUATION SYSTEM --------------------------------------------------------------------------------------------------------------------- 96
FUNCTION OF THE FLUX EVACUATION SYSTEM----------------------------------------------------------------------------------------- 97
HOODLIFTS---------------------------------------------------------------------------------------------------------------------------------------------- 99
THREE ACTUATOR SYSTEM---------------------------------------------------------------------------------------------------------------------105
INDEPENDENT ALARM SCANNER OVER-TEMP & ALARM/SHUTDOWN---------------------------------------------------------106
INDIVIDUAL CELL SENSING ---------------------------------------------------------------------------------------------------------------------107
HEATER CELL OVER-TEMPERATURE SWITCHES --------------------------------------------------------------------------------------110
LIGHT TOWER-----------------------------------------------------------------------------------------------------------------------------------------111
ON-BOARD OXYGEN (O2) ANALYZER-------------------------------------------------------------------------------------------------------112
POLAR COOL™ OPTION --------------------------------------------------------------------------------------------------------------------------114
EXTERNAL COOLING LIQUID SUPPLY OPTION ------------------------------------------------------------------------------------------119
RAIL ADJUST: -----------------------------------------------------------------------------------------------------------------------------------------121
SMEMA INTERFACE---------------------------------------------------------------------------------------------------------------------------------124
TEMPERATURE PROFILE PLOTTING (PRECISION PROFILING)--------------------------------------------------------------------132
Technical Service Manual 4 Revision Date: August 2004
PURPOSE OF THIS MANUAL & WHO SHOULD USE IT
CAUTION
IMPROPER SAFETY PRECAUTIONS OR UNSAFE WORK METHODS MAY RESULT IN SERIOUS INJURY!
The following conditions may be encountered
when working on any reflow oven:
Þ High Temperature areas (up to 350
o
C)
Þ High Voltage areas (up to 480 VAC)
Þ High Current areas (up to 200 Amps)
Þ Moving Mechanical Parts and Systems
Þ Heavy Components
Þ Sensitive Electronic Components
This manual is intended to meet the needs of service personnel responsible for the regular service of Vitronics-Soltec
Reflow Ovens. Vitronics-Soltec does not consider this manual a specification for Vitronics-Soltec products or any
components contained in those products and reserves the right to change information contained in this manual without
notification. This manual is intended to be a reference. Some of the topics explain manufacturing and assembly
methods and practices; however, many topics deal with specific service information and methods. Hopefully, insight will
be provided about the various sub-systems of the electrical control system to allow quick identification of problems and
possible solutions.
IT IS THE RESPONSIBILITY OF THE END USER TO ENSURE THAT ONLY QUALIFIED PERSONNEL
SHOULD BE ALLOWED TO WORK ON THE EQUIPMENT. THIS MANUAL IS FOR SERVICE OF VITRONICS-
SOLTEC OVENS BY TRAINED QUALIFIED PERSONNEL.
AN APPROPRIATE UNDERSTANDING AND USE OF
SAFETY PROCEDURES WHEN WORKING ON AND AROUND THE OVEN IS NECESSARY
Some people who might use this manual are:
• Vitronics-Soltec service technicians
• Customer service technicians
• Customer facilities maintenance personnel
• Technical operators