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LOFA

TM

MC704

Panel Operation and Troubleshooting Manual

17

9M02-3000-A001-EN

Revision D

4.4.1 Testing Shutdown Inputs

Shutdown switches signal a fault by ground contact in most systems. Shutdown operation can be verified by

grounding the shutdown inputs individually. It may be necessary to remove the wire from the shutdown switch to

perform this test.

Note:

Most shutdown switches are grounded through the switch body.

Do not use insulating sealant (i.e., Teflon tape) when installing switches.

Some thermostat housings are composites and do not provide ground for the switch

.

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Содержание LOFA MC704

Страница 1: ...LOFATM MC704 Panel Operation and Troubleshooting Manual 9M02 3000 A001 EN ...

Страница 2: ...lication of Cattron products rests with the end user since Cattron and its agents cannotbe aware of all potential uses Cattron makes no warranties as to non infringement nor as to the fitness merchantability or sustainability of any Cattron products for any specific or general uses Cattron Holdings Inc or any of its affiliates or agents shall not be liable for incidental or consequential damages o...

Страница 3: ...Connectors 10 3 3 2 Unsealed Connectors 10 3 3 3 Harness Routing 10 3 4 Battery Circuit Requirements 11 3 4 1 Battery Positive Connection 11 3 4 2 Battery Negative Connection Grounding 11 3 4 3 Voltage Drop 12 3 5 Suppression of Voltage Transients Spikes 12 3 6 Welding on Equipment with Electronic Controls 13 4 Troubleshooting 14 4 1 General Troubleshooting 14 4 2 Fuel Run Stop Solenoid Troublesho...

Страница 4: ...LOFATM MC704 Panel Operation and Troubleshooting Manual 4 9M02 3000 A001 EN Revision D 7 Technical Support 21 ...

Страница 5: ...hourmeter Both versions can be factory configured with specific preheat and afterglow requirements If preheat is not required this output can function as an alarm All standard panels feature a 12 inch wiring harness terminating into a sealed weather proof plug This robust universal wiring connection performs well in harsh environments and allows interchanging a number of different panels and harne...

Страница 6: ...tools and materials may cause damage or make the equipment unsafe to operate Only persons with appropriate training skills and tools should perform these functions Improper operation maintenance or repair of this product can be dangerous and may result in injury or death Do not operate or perform any maintenance or repair on this product until all operation maintenance and repair information is re...

Страница 7: ...l run stop solenoid output is turned off after 30 seconds even if preheating As soon as the key switch is turned to the start position the solenoid output is enabled The afterglow cycle begins when the key switch returns to the run position Note If conditions do not warrant preheat the engine may be started by turning the key to the start position without waiting for the preheat time to expire Pan...

Страница 8: ... Irregular blinking of the Battery LED may indicate a failing charge circuit The panel can be factory configured to indicate only battery charge failure 3 2 2 Oil Pressure LED Red A solidly illuminated Oil Pressure LED indicates low oil pressure failure The panel typically senses low oil pressure from a ground contact switch on the engine When a sender switch combination is used on the engine the ...

Страница 9: ... ENGINE IS NOT PROTECTED FROM OVERHEATING FOR THE BEST POSSIBLE PROTECTION CATTRON RECOMMENDS USING OUR SOLID STATE COOLANT LEVEL SHUTDOWN SWITCH Note Most shutdown switches are grounded through the switch body Do not use insulating sealant i e Teflon tape when installing switches Some thermostat housings are composites and do not provide ground for the switch 3 2 4 AUX LED Red A solidly illuminat...

Страница 10: ...ors For unsealed connectors exposed to the elements Cattron recommends using dielectric grease to protect contacts WARNING CATTRON DOES NOT RECOMMEND USING SEALANT WITH UNSEALED CONNECTORS SEALANT TRAPS MOISTURE IN THE CONNECTOR AND ENCOURAGES CORROSION 3 3 3 Harness Routing The minimum routing radius of the wiring harnesses should be at least two times the diameter of the wiring harness Bends sho...

Страница 11: ...kers can be significantly reduced below the rated trip point if the circuit breaker is exposed to high temperatures WARNING DISCONNECTING THE BATTERY WHILE THE ENGINE IS RUNNING MAY DAMAGE ELECTRICAL COMPONENTS WHEN USING A BATTERY DISCONNECT SWITCH CATTRON RECOMMENDS USING A 2 POLE SWITCH TO DISCONNECT BOTH THE BATTERY AND ALTERNATOR OUTPUT 3 4 2 Battery Negative Connection Grounding WARNING IMPR...

Страница 12: ...SSION AT THE TRANSIENT SOURCE IS REQUIRED CATTRON FOLLOWS SAE RECOMMENDED ELECTRICAL ENVIRONMENT PRACTICES Inductive devices such as relays solenoids and motors generate voltage transients and noise in electrical circuits Unsuppressed voltage transients can exceed SAE specifications and damage electronic controls Relays and solenoids with built in voltage transient suppression diodes are recommend...

Страница 13: ...NING DO NOT GROUND THE WELDER TO ELECTRICAL COMPONENTS SUCH AS THE CONTROL GROUND OR SENSORS IMPROPER GROUNDING CAN CAUSE DAMAGE TO ELECTRICAL COMPONENTS CLAMP THE GROUND CABLE FROM THE WELDER TO THE COMPONENT BEING WELDED PLACE THE CLAMP AS CLOSE AS POSSIBLE TO THE WELD TO REDUCE THE POSSIBILITY OF DAMAGE 1 Stop the engine Turn the key switch to the OFF position 2 Disconnect the negative battery ...

Страница 14: ...lenoid Troubleshooting section Tripped overcurrent protection Correct fault replace or reset overcurrent protection No preheat cold condition See Preheat Troubleshooting section Engine runs for 10 seconds and shuts down Possible Cause Possible Remedy Shutdown switch input active Verify shutdown source exists correct condition or correct faulty circuit Battery not charging Verify alternator chargin...

Страница 15: ...ng solenoid linkage Repair or replace solenoid linkage Fuel valve without check valve Install or repair check valve Fuel run stop solenoid does not engage Possible Cause Possible Remedy No power to solenoid Locate reason for lack of power and correct Circuit overloaded Failed suppressor diode Faulty wiring No power to solenoid pull coil Correct faulty wiring check pull control circuit Incorrect li...

Страница 16: ...lty panel See Panel Troubleshooting section 4 4 Panel Troubleshooting Panel does not perform self test Possible Cause Possible Remedy Tripped overcurrent protection Correct fault replace or reset overcurrent protection Faulty connection to battery Correct battery connections see Battery Circuit Requirements section Panel performs normal self test engine cranks runs and shuts down Possible Cause Po...

Страница 17: ...s Shutdown operation can be verified by grounding the shutdown inputs individually It may be necessary to remove the wire from the shutdown switch to perform this test Note Most shutdown switches are grounded through the switch body Do not use insulating sealant i e Teflon tape when installing switches Some thermostat housings are composites and do not provide ground for the switch ...

Страница 18: ...ting Manual 18 9M02 3000 A001 EN Revision D 5 Typical Schematics The following figures show typical schematics The details will vary from installation to installation Please see the specific schematics for the particular installation for details ...

Страница 19: ...LOFATM MC704 Panel Operation and Troubleshooting Manual 19 9M02 3000 A001 EN Revision D ...

Страница 20: ...ducts Deliverables Licensed Product Information Software codes with product numeric values equal to 001 xxxx yyyy zzz where xxxx yyyy and zzz equal 0000 9999 Software codes qualified under the same numeric regimen detailed above or including the verbal description of CANPlus products and or the CANPlus Suite of products ...

Страница 21: ...peration and Troubleshooting Manual 21 9M02 3000 A001 EN Revision D 7 Technical Support For remote and communication control systems support parts and repair or technical support visit us online at www cattron com contact ...

Страница 22: ...ct improvement the information provided in this document is subject to change without notice Cattron Support For remote and communication control systems support parts and repair or technical support visit us online at www cattron com contact Cattron North America Inc 655 N River Rd NW Suite A Warren OH 44483 ...

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