Related Manuals for Bienfang Vacuum Press 3648H
Summary of Contents for Bienfang Vacuum Press 3648H
- Page 1 BIENFANG 3648H, 4468H & 5298H Troubleshooting Guide Provided By http://www.MyBinding.com http://www.MyBindingBlog.com...
- Page 2 Bienfang Vacuum Press 3648H, 4468H and 5298H ® Trouble-Shooting Guide...
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Page 3: Table Of Contents
CONTENTS Overview ……………………………………………………………………………….. 3 Heat Related Malfunctions Run away heat condition with heat control off …………………………... 4 Press runs hotter than set temperature ………………………………….… 6 No heat or press runs cold …………………………………………….….. 7 Temperature readout always reads 35-50 deg F ……………………….…. 8 Temperature readout always reads over 300 deg F …………………….…... -
Page 4: Overview
Please read the entire owners manual and fully understand the proper operating procedures before continuing the trouble-shooting guide. Each Bienfang Vacuum Press is fully assembled, calibrated, and tested at the factory to pull a high level of vacuum in a minimum amount of time. Once passed by the Quality Control Department, the completely tested press and pump are packaged and shipped together to ensure that each customer receives a complete and tested unit. -
Page 5: Heat Related Malfunctions
HEAT RELATED MALFUNCTIONS Run Away Heat Condition With Heat Control Off Possible Causes: - Sensor or sensor assembly - Solid-state relay - Mis-wired power board assembly (if new installation) - Mis-wired control board assembly (if new installation) This section is to be used in the case of presses that experience a severe runaway heat condition. - Page 6 Does the temperature read out indicate room temperature then follow rising temperature rapidly? If yes- sensor is OK. If no- proceed to Intrusive Actions, Step 5. Intrusive Actions: 5. With power off, remove control panel from housing. 6. Disconnect ribbon cable from control panel assembly. 7.
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Page 7: Press Runs Hotter Than Set Temperature
Press Runs Hotter Than Set Temperature Possible causes: -Sensor or sensor assembly -Control board assembly This section is to used for presses that experience hotter than normal operating temperatures. DO NOT use this section for run-away temperature conditions. A faulty sensor, or a sensor that has pulled away from the platen will cause the temperature to run higher than normal. -
Page 8: No Heat Or Press Runs Cold
No Heat Or Press Runs Cold Possible Causes: -Sensor or sensor assembly -Control board assembly -Power board assembly -Mis-wired (only if new installation) -Solid-state relay -Heater safety thermostats This section is to be used for presses that will not heat up after the “heat on” indicator has been verified “on”... -
Page 9: Temperature Readout Always Reads 35-50 Deg F
Temperature Readout Always Reads 35-50 deg F Possible Causes: -Sensor or sensor assembly -Control board assembly A shorted sensor or sensor harness will always cause this malfunction. A faulty controller may also cause this problem but can be easily and safely diagnosed. Intrusive Actions: 1. -
Page 10: Higher Temperatures Not Obtainable
Higher Temperatures Are Not Obtainable Possible Causes: -Inline heater thermostats This section should only be used when the press seems to operate normally at lower temperatures but not at higher temperatures. Intrusive Actions: 1. With power off, remove control panel from housing. 2. -
Page 11: Control/ Display Related Malfunctions
CONTROL/ DISPLAY RELATED MALFUNCTIONS Controller Self Diagnostics 1. Turn press “off”. 2. Hold down enter key. 3. Turn press “on”. 4. If displays a “C” and a number, replace the control panel. Note: The numbers in the temperature and vacuum display are the current A/D values being read by the controller and don’t really provide useful information. -
Page 12: Display Fine On Power Up But Become Erratic After Operation
Display Fine On Power But Becomes Erratic After Operation Controller Resets Itself During Cycles Display Blanking Out Possible Causes: -Controller assembly -Poor ground connections -Loose ribbon cable or power connection to power board This section is to be used only when the controller operates normally then goes haywire during operation. -
Page 13: No Display At All
No Display At All Possible Causes: -Controller assembly -Poor ribbon cable or power connections -Power board -Circuit breaker This section is to be used only if there are no signs of life at all on the displays of the controller. If on power up, there are any flashes of leads or an audible “beep”, refer to section on “Continuously erratic display from power up”. -
Page 14: Vacuum Related Malfunctions
VACUUM RELATED MALFUNCTIONS Pump Won’t Turn On Possible Causes: -Pump -Bad connection -Power board -Controller assembly This section is to be used only if the controller has power and operates correctly and if a program with vacuum commanded on has been attempted and pump still won’t turn on. Non-Intrusive Actions: 1. -
Page 15: Pump Won't Turn Off
Pump Won’t Turn Off Intermittent Pump Operation Possible Causes: -Power board -Controller assembly -Wiring The pump operates via 1 signal from the control board. This signal turns “on” the pump relay located on the power board. A faulty power board is most likely the cause. Non-Intrusive Actions: 1. -
Page 16: Solenoid Won't Open Or Close
Solenoid Won’t Open Or Close Possible Causes: -Power board -Controller assembly -Wiring This section is to be used only if the controller and pump are working properly. The solenoid valve is normally open in the de-energized state and operates via 1 signal from the control board. -
Page 17: Technical Data Sheet
TECHNICAL DATA SHEET Heater Resistance With the unit unplugged from the wall supply, the resistance of the heaters can be measured. Individual heaters will measure according to the chart below. Vacuum Press Model Number Individual Heater Resistance 3444 31.2 ohms +/- 7% 3648H 50.0 ohms +/- 7% 4468... -
Page 18: Sensor Resistance At Various Temperatures
Sensor Resistance at Various Temperatures Use the following chart to look up the sensor resistance at various temperatures with the sensor unplugged from the controller. Temperature Resistance 20 C (68º F) 2000 ohms +/- 5 30 C (86º F) 2075 ohms +/- 6 40 C (104ºF) 2153 ohms +/- 7 50 C (122º... -
Page 19: Picture References
Picture References Pictured above is the solid-state relay. It is mounted beneath the diaphragm on the far right side of the access panel. Pictured above is the access panel. Located from left to right- solenoid, power board, distribution block, and solid-state relay. -
Page 20: Power Board
Pictured above is the power board.
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