GREER Company MICROGUARD 434 Calibration Procedure
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- Troubleshooting manual (81 pages) ,
- Calibration manual (39 pages) ,
- Operator's manual (13 pages)
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Summary of Contents for GREER Company MICROGUARD 434
- Page 1 GREER COMPANY MICROGUARD ® ® CALIBRATION PROCEDURE LINK BELT MODELS August 15, 1997 1918 EAST GLENWOOD PLACE SANTA ANA, CALIFORNIA 92705 714) 259-9702 phone 714) 259-7626 fax...
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Page 2: Table Of Contents
CONTENTS ♦ GENERAL INFORMATION PAGE 3 ♦ CALIBRATION PROCEDURES PAGE 4 ♦ COMMAND 00 PAGE 5 ♦ COMMAND 01 PERSONALITY PAGE 5 ♦ COMMAND 02 TEST/FAULT PAGE 7 ♦ FAULT CODES PAGE 8 ♦ NUMBER ENTRY PAGE 9 ♦ COMMAND 03 ZERO PAGE 11 ZERO PRESSURE TRANSDUCERS... -
Page 3: General Information
GENERAL INFORMATION After satisfactory installation of the complete system, ensure that it is correctly wired in accordance with the appropriate Wiring Diagram found in the installation manual. Before carrying out any crane operations ensure that the machine is on firm and level ground and that the outrigger beams are fully extended and jacks are correctly extended to level the carrier. -
Page 4: Calibration Procedures
CALIBRATION PROCEDURES The Display Unit provides the interface between the user and the calibration program. The user communicates with the program interactively using a keypad. The displays provide information and data to enable the calibration to be carried out using only on screen prompts. Data entry is achieved by the use of six selection keys located around the graphics panel. -
Page 5: Command 00 Run
COMMAND 00 RUN Following correct entry of the calibration code then the system will be in the MONITOR mode and will be at Command 00 Run. Execution of this command will cause the system to carry out a system TEST and return to the working screen. COMMAND 01 PERSONALITY The Personality command is used to manipulate the crane calibration data. - Page 6 WARNING If the system has been previously calibrated and the intention is only to access data or change only a portion of the previous calibration then DO NOT perform the initialization process which follows otherwise the entire previous calibration data will be lost.
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Page 7: Command 02 Test/Fault
COMMAND 01/0 SAVE On completion of a calibration it is necessary to carry out Command 01/0 SAVE and this is referred to at the end of this manual. There is no reason, however, why this command should not be used at any time during the intermediate stages of a calibration, for example at the end of a period of work or if desired after each section of a calibration has been completed. -
Page 8: Fault Codes
FAULT CODES GROUP "A" ANALOG SENSORS CODE NO FAULTS SENSOR 0 PISTON PRESSURE TRANSDUCER SENSOR 1 ROD SIDE PRESSURE TRANSDUCER SENSOR 2 EXTENSION SENSOR SENSOR 3 BOOM ANGLE SENSOR SENSOR 4 UPPERSTRUCTURE ANGLE SENSOR SENSOR 5 SWING POTENTIOMETER "A" SENSOR 6 SWING POTENTIOMETER "B"... -
Page 9: Number Entry
NUMBER ENTRY The MicroGuard 434 series computers do not have number entry keys. A special number entry procedure is used to allow the simple entry of numbers. When numerical entry of data is required the display will change to allow the entry of numbers. - Page 10 NUMBER ENTRY (continued) IN THE EXAMPLE WHICH FOLLOWS AN ARBITRARY NUMBER OF MINUS 123.45 HAS BEEN CHOSEN TO ILLUSTRATE THE USE OF THE PROCEDURE. CORESPONDING MOVE THE CURSOR TO THE CHANGE SIGN ROW SELECTION ù < > BY PRESSING SELECT THE MINUS SIGN BY PRESSING CORRESPONDING SELECTION KEY CORESPONDING...
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Page 11: Command 03 Zero
COMMAND 03 ZERO The Zero Command permits the calibration of the zero of most analog sensors. There are four sensors which can be zeroed by the use of command 03. Each sensor is allocated a number which corresponds to the input to which it is connected in the system. - Page 12 ZERO (continued) SCROLL TO Tx.1 BY PRESSING CORRESPONDING SELECTION KEY MENU UP MENU DOWN CONFIRM SELECTION OF THE SENSOR CORRESPONDING SELECTION KEY BY PRESSING THE DISPLAY WILL READ Tx.1 = XXX (actual input) START THE CALIBRATION OF Tx.1 BY PRESSING CORRESPONDING SELECTION KEY THE DISPLAY WILL READ Tx.1 = 0 (zeroed input)
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Page 13: Zero Extension Sensor
ZERO EXTENSION SENSOR The Extension Sensor is fitted with 130 ft. of shielded 2-wire cable. The cable cannot be shortened to accommodate varying boom lengths and the following method of pre-tensioning is recommended. ♦ Fully retract all the boom sections. ♦... -
Page 14: Zero Angle Sensor
ZERO BOOM ANGLE SENSOR NOTE THE INCLINOMETER OR MEASURING DEVICE USED TO CALIBRATE THE ANGLE OF THE MAIN BOOM MUST HAVE AN ACCURACY OF +/- 0.25°. USE OF A LESS ACCURATE DEVICE MAY RESULT IN CALIBRATION ERRORS. USE GREAT CARE IN THE CALIBRATION OF THE BOOM ANGLE SENSOR. ALL SUBSEQUENT CALCULATIONS ARE DEPENDENT ON THE ACCURACY OF THE CALIBRATION OF THIS SENSOR. -
Page 15: Command 04 Span
COMMAND 04 SPAN BOOM ANGLE SENSOR NOTE THE INCLINOMETER OR MEASURING DEVICE USED TO CALIBRATE THE ANGLE OF THE MAIN BOOM MUST HAVE AN ACCURACY OF +/- 0.25°. USE OF A LESS ACCURATE DEVICE MAY RESULT IN CALIBRATION ERRORS. USE GREAT CARE IN THE CALIBRATION OF THE BOOM ANGLE SENSOR. ALL SUBSEQUENT CALCULATIONS ARE DEPENDENT ON THE ACCURACY OF THE CALIBRATION OF THIS SENSOR. -
Page 16: Extension Sensor
EXTENSION SENSOR THROUGHOUT THIS PROCEDURE DO NOT FULLY EXTEND THE BOOM IF THIS WOULD CAUSE A TIPPING CONDITION. CARRY OUT CALIBRATION PROCEDURES ONLY WITHIN THE STABILITY LIMITS OF THE MACHINE. With the boom horizontal and fully retracted, measure the distance from the boom pivot to the hook center line. Note the distance. -
Page 17: Command 05 Swing
COMMAND 05 SWING THIS ROUTINE WILL ONLY BE EXECUTED ON MODELS THAT HAVE SWING POTENTIOMETERS. IF EQUIPPED WITH SWING SWITCHES CONTINUE WITH COMMAND 06 PRESSURE. SCALE The swing command does not require the entry of measured data. All measurements of swing data are acquired automatically by the system during the calibration of the swing sensor. - Page 18 COMMAND 05 SWING (continued) POSITION THE CRANE UPPER DIRECTLY IN LINE OVER THE FRONT OF THE MACHINE START THE SLEW ZERO CALIBRATION CORRESPONDING SELECTION KEY BY PRESSING CONFIRM THE CALIBRATION CORRESPONDING SELECTION KEY YES or NO THE DISPLAY WILL READ 1 = SET POT ZERO SCROLL TO 2 DIRECTION BY PRESSING CORRESPONDING SELECTION KEY...
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Page 19: Configuration Selection
CONFIGURATION SELECTION In the normal operational mode the system is programmed to remember the configuration last selected. Each time the system is powered up it will automatically choose that configuration. Only when the crane is rigged differently must a new configuration be selected. - Page 20 CONFIGURATION SELECTION START THE SELECTION OF CRANE CONFIGURATION BY PRESSING "CRANE SET UP" MG434 CALIBRA TION PROCEDURE Page 20 of 41 10/16/01 LINK-BELT MODELS...
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Page 21: Command 06 Pressure
COMMAND 06 PRESSURE ♦ USE "CRANE SET UP" (MUST EXIT CALIBRATION ROUTINE) TO SELECT FULLY EXTENDED OUTRIGGERS, MAIN BOOM, AND ATTACHMENTS IF EQUIPPED. ♦ DETERMINE THE WEIGHT OF THE CALIBRATION LOAD. THE CALIBRATION LOAD INCLUDES THE WEIGHT OF THE PINS AND SLINGS BUT DOES NOT INCLUDE THE WEIGHT OF THE BLOCK OR BALL. FOR BEST ACCURACY USE A LOAD WHICH EXCEEDS 50% OF THE MACHINE CAPACITY. -
Page 22: Command 07 Radius/Moment Main Boom (Mode A)
COMMAND 07 MAIN BOOM RADIUS/MOMENT ♦ This command is used to calibrate the radius AND moment of the main boom. It requires data at high and low angles retracted and high and low angles with the boom extended to the prescribed lengths. ♦... - Page 23 Raise the retracted boom to an angle between 60° and 65° and measure the new radius. STORE THE HIGH ANGLE DATA BY PRESSING CORRESPONDING SELECTION KEY USE THE NUMBER ENTRY ROUTINE TO ENTER THE NEW RADIUS THE DISPLAY WILL READ ( D U ) START THE MOMENT CALIBRATION AT THE CORRESPONDING SELECTION KEY CURRENT LENGTH BY PRESSING...
- Page 24 THIRD LENGTH Maintain the same low angle, fully extend the main boom and measure the new radius STORE THE LOW ANGLE DATA BY PRESSING CORRESPONDING SELECTION KEY USE THE NUMBER ENTRY ROUTINE TO ENTER THE NEW RADIUS THE DISPLAY WILL READ ( D ) Raise the fully extended main boom to an angle between 60°...
- Page 25 COMMAND 07 MAIN BOOM + MANUAL (MODE B) RADIUS/MOMENT ♦ This command is used to calibrate the radius AND moment of the main boom + manual or mode B. It requires data at high and low angles retracted and high and low angles with the boom extended to the prescribed lengths. ♦...
- Page 26 Raise the retracted boom to an angle between 60° and 65° and measure the new radius. STORE THE HIGH ANGLE DATA BY PRESSING CORRESPONDING SELECTION KEY USE THE NUMBER ENTRY ROUTINE TO ENTER THE NEW RADIUS THE DISPLAY WILL READ ( D U ) START THE MOMENT CALIBRATION AT THE CORRESPONDING SELECTION KEY CURRENT LENGTH BY PRESSING...
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Page 27: Command 08
Raise the fully extended main boom to an angle between 60° and 65° and measure the new radius. STORE THE HIGH ANGLE DATA BY PRESSING CORRESPONDING SELECTION KEY USE THE NUMBER ENTRY ROUTINE TO ENTER THE NEW RADIUS THE DISPLAY WILL READ ( D U ) START THE MOMENT CALIBRATION AT THE CORRESPONDING SELECTION KEY CURRENT LENGTH BY PRESSING... -
Page 28: Command 09 Annular Gain
When this message occurs as a result of requiring the acquisition of data below 60° then the data may be entered by the use of the low angle key to indicate at which unusual angle data is being acquired. COMMAND 09 ANNULAR GAIN ♦... -
Page 29: Command 12 Winches
COMMAND 12 WINCHES Permits the "hiding" of a winch when it is not sold with the machine thereby removing unnecessary steps from the Operator Menu. This command operates by making a winch selectable or hidden by use of the following sequence: SCROLL TO 12 WINCHES BY PRESSING CORRESPONDING SELECTION KEY MENU UP... -
Page 30: Command 15 Alarm Limits
COMMAND 15 ALARM LIMITS In this routine the computer has provisions to put limits on various functions depending on which model of machine is being calibrated. The following explains each alarm/limit available: Free Bm Mode - This allows the operator to select the Main Boom + Manual configuration after the Manual section is already extended (if equipped). - Page 31 THE DISPLAY WILL READ FKO Delay? y/n SCROLL TO NEXT ALARM BY PRESSING CORRESPONDING SELECTION KEY EXIT THE DISPLAY WILL READ Area Alarm? y/n START THE CALIBRATION OF THE AREA ALARM BY CORRESPONDING SELECTION KEY PRESSING AFTER THE MESSAGE "CALIBRATING" THE DISPLAY WILL READ Area Alarm? y/n SCROLL TO NEXT ALARM BY PRESSING...
- Page 32 AFTER THE MESSAGE "CALIBRATING" ENTER NEW % SWL1 THE DISPLAY WILL READ CURRENTLY=XXX.XX (VALUE ENTERED) EXIT FROM THE ROUTINE BY PRESSING CORRESPONDING SELECTION KEY EXIT Details of Alarms may be examined by use of the following sequence: SCROLL TO 15 ALARM BY PRESSING CORRESPONDING SELECTION KEY MENU UP MENU DOWN...
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Page 33: Command 16 Rope Data
COMMAND 16 ROPE DATA ♦ Maximum hoist rope tension is specified by the crane manufacturer for the size and type of wire rope used on the machine. This value is set at the initialization of the system. ♦ The Rope Data command permits the modification of the values and they should be entered in units of 1000 #. Example 11,700 # is entered as 11.700 Change data by use of the following sequence: SCROLL TO 16 ROPE BY PRESSING... - Page 34 Details of Rope Data may be examined by use of the following sequence: SCROLL TO 16 ROPE BY PRESSING CORRESPONDING SELECTION KEY MENU UP MENU DOWN START THE COMMAND BY PRESSING CORRESPONDING SELECTION KEY THE DISPLAY WILL READ ENTER ROPELIM0 CURRENTLY = 11.700 SCROLL TO ROPE LIMIT #1 BY PRESSING CORRESPONDING SELECTION KEY...
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Page 35: Command 17 Amplifier Gain
COMMAND 17 AMPLIFIER GAIN At the time of initialization the amplifier gain is set to the preferred value of 2. This value is suitable for the standard load cells and pressure transducers supplied with systems. For special application this gain setting may be modified as necessary. Refer to the factory before making any changes. - Page 36 COMMAND 01/0 SAVE On completion of a calibration it is necessary to carry out Command 01/0 SAVE. The use of this command will ensure that a copy of the calibration, will be contained in the back-up memory. SCROLL TO 01 PERSONALITY BY PRESSING CORRESPONDING SELECTION KEY MENU UP MENU DOWN...
- Page 37 SWITCH OFF POWER TO THE SYSTEM BEFORE REMOVING OR INSERTING INTEGRATED CIRCUITS A COPY OF THE CONTENTS OF THE "A" PORTION OF THE PERSONALITY IS NOW STORED TEMPORARILY IN MEMORY IN THE COMPUTER. THE CHIP IN SOCKET IC7 IS REMOVED AND WILL BE THE SERVICE BACK-UP CHIP. TO RE-INSTATE THE SYSTEM TO WORKING CONDITION FIT A NEW CHIP, TYPE 28C65, IN SOCKET IC7.
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Page 38: Command 19 Digital Inputs
COMMAND 19 DIGITAL INPUTS The logic status of digital inputs is displayed by use of this command. The inputs can be high or low. Low is indicated by 0 and high is indicated by 1. SCROLL TO 19 DIGITAL INPUTS CORRESPONDING SELECTION KEY BY PRESSING MENU UP... -
Page 39: Glossary
GLOSSARY OF TERMS ABORT The premature termination of a data entry procedure. ALARM A signal that warns or alerts such as a flashing light or loud noise. AMPLIFIER A device which takes an input and produces an output of greater magnitude (as in the case of a pressure transducer where a signal in the millivolt range is amplified to the level of up to ten volts). - Page 40 ELASTIC Capable of recovering size or shape after deformation. ERECTED ATTACHMENT An attachment on the main boom fitted in its working position. EXTENSION SENSOR A device which measures the extension of the telescoping sections of a boom. FLY/JIB Something attached by one edge such as a lattice fly or jib on a crane boom.
- Page 41 "Read only" memory from which data can only be read, i.e. not changed after programming. ROPE LIMIT The maximum permitted single line pull determined by the construction and diameter of a wire rope. SAVE Move data from the working personality to a write protected area of memory.
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