Contents
1.General Introduction...... …2
2. Warnings……………………...... …2
3. System Description…………………………………………………………………….3
4.Technical Parameter………...... 4
5.Display and Setting…...... 5
5.1Displayed Content...... 5
5.1.1 Button...... 5
5.2 Start Logo...... 6
5.3 Main Interface...... 6
5.4 COMMON SETTING...... 8
5.4.1 OM Setting...... 9
5.4.2 Reev Setting...... 10
5.4.3 Hook Weight Setting...... 10
5.5 Advanced Setting...... 11
5.6 Stop Alarm...... 13
6. Error Code……...... 13
7. DailyMaintenance……...... 15
7.1 Notice......
7.2 Must Check Option...... 15
Appendix 1 Operation Mode List………………………………………………………...15
1
1.General Introduction
The load moment indicator (LMI) has been designed to provide the crane operator with the essential information required to operate the machine within its design parameters.
By various sensing devices, the Load Moment Indicator monitors various crane function and provide the operator with a continuous and ontime reading of the crane’s capacity. The readings continuously change as the crane moves through the motions needed to make the lift.
The LMI provides the operator with information regarding the length and angle of the boom, tip height, working radius, rated load and the total calculated weight being lifted by the crane.
If the crane exceed the limited capacity, the system will warn the operator by sounding an audible alarm, lighting a warning light and locking out those functions that may aggravate the crane’s condition.
2.Warnings
The LMI is an operational aid that warns a crane operator of approaching overload conditions and of over-hoist conditions that could cause damage to equipment and personnel.
The device is not, and shall not, be a substitute for good operator judgment, experience and use of accepted safe crane operating procedures.
The responsibility for the safe crane operation shall remain with the crane operator who shall ensure that all warnings and instructions supplied are fully understood and observed.
Proper functioning depends upon proper daily inspection and observance of the operating instructions set forth in this manual.
Prior to operating the crane, the operator must carefully and thoroughly read and understand the information in this manual to ensure that he knows the operation and limitations of indicator and crane.
Warning:The LMI can only work correctly, if all adjustments have been properly set. For correct adjustment, the operator has to answer thoroughly and correctly all questions asked during the setup procedure in accordance with the real rigging state of the crane. To prevent material damage and serious or even fatal accidents, the correct adjustment of the LMI has to be ensured before starting the crane operation
3. SystemDescription
LMI SYSTEM COMPONENT
ITEM / DESCRIPTION / MODEL / QTY / NOTICE1 / HOIST DISPLAY / 1SET
2 / ANGLE SENSOR / 1SET
3 / PIN-AXIS TRANSDUCER / 100T / 1PC
4 / BOOMCONNECTINGBOX / 1SET
5 / A2B SWITCH / A2B / 1SET
6 / WEIGHT / 1PC
7 / CONNECTIONCABLEAND PLUG
list1. Component
Pic.1system topology diagram
Thesystem is designed for telescopic boom crane, lattice boom crane and other kind of cranes to measure the load moment of the crane and make a judgment whether the crane is overload or not. This can prevent dangerous operation.
The system is loaded with 16-bit high performance micro-processor which support it to be a strong extended capacity and easy operation system with a compact and friendly interface. It support customized configuration and the LCD display can show the percentage, real weight, limited load ,operation radius, jib length&angle, max. of the hoist height, OM code, reeving, limited angle and error code in both English and Chinese and graphic. The system also support two kinds of install method(inner or external) according to actual requirement.The system has the prelarm function、overload alarm and overload control output function；the system also provide the self-check and error code display function which can help the operator .The working angle limit function support a more reliable working performance even under complex condition. The communication by CANBUS and has the overload memory function(black box).
The currency type sensor enable the system more strong anti-interference ability. The system mainly configured with control center and display. When process with complex cases this system runs faster due to its own configuration(calculation and display by different processor). And you have various choices such as length/angle sensor,A2B switch system, anemometer, pressure sensor and other sensors
( force sensor, pin-axistransducer, compression sensor).All connections by plug which is easy for install and maintenance.
4.TechnicalParameter
Working voltage： 18～32VDC
Working temp： -40℃～+75℃
Storage temp： -50℃～+85℃
humidity： ≤95%
protection IP： outdoor：IP67，indoor：IP47
Height： 1000m
Dimensions： 5.6 inch colorful LCD
LCD： 640*480
CPU: XC167
Working frequency：16MHz
Program space：256KB
Data space：2MB
Static RAM：512KB
ADC： 10bit
CANBUS： 1
Switch input： 8
Analog input： 8（4～20mA）
Relay output： 1
PWM output: 7
5.Display and Setting
5.1Displayed Content
Pic.2 display interface
5.1.1Button
By switching the various function button you can change the system settings when the crane change its working.
Function button：F1-F5 BUTTON, has different function
b.Number button：0 ~9，to put the button by the corresponding function
notice：the number button“0、5、6”can have the following function
soft enforcement
light up
light down
5.2STARTING LOGO
As you connect the system the console will display the LOGO
Pic.3LOGO
5.3 Main Interface
5 seconds after enter into the LOGO interface it will to
The LMI system main interface. The interface will show different graphic and information according to the crane’s condition.
Main boom condition it will show as below
Pic.4boom interface
It will show the following information.
:advanced setting(F2)；
:common setting(F3)；
：help(F4)；
：stop alarm(F5)；
: Chinese-English interface(“2”)；
Performance sheet(OM)：Please set the proper OM according to actual working.
Reev：Please set the proper reev according to actual working.
Caution：To setting the correct OM and Reevis the basic requirement in order to correctly display the weight and working radius.
Main boom length：actual boom length
Main boom angle：actual boom angle
Working radius: actual working radius（radius）；
Max.height:the max distance the load from the ground
Actual load：working load
Capacity load：max. load under the actual working condition
load moment percentage：display by bar code and percentage and change the color according to the different warning point.
Time：system time
Balance weigh： expand or drawback；
Error code：when system fault the error code will display to indicate the error. Different code means different error.(see error code sheet)
Force warning：when the user switch on the force warning button the display will change fromto.
A2B warning：when the hook hoist the balance weight or the A2B error the warning display change fromto“”。
5.4 Common setting
The common setting contains OM setting, “Reev setting”,hook weight settings.
Press F3 key （)under the main interface to enter into the interface of “common setting”,Pic.5.
l
Pic.5common setting interface
5.4.1OM seeting
Under the common setting please press the key “1” to enter into the OM setting(appednix 1）:
Pic.6OM Setting
: modification（F3）；
：confirm（F4）；
：return to previous menu（F5）；
Press “F3” and enter the OM code by number button 1-4 and press F4 for enter and press F5 to back up.
notice：OM setting must based on the actual status of the crane！
5.4.2Reev setting
Under the common setting please press the key “2” to enter into the Reev Setting(Pic.7）：
Pic.7 Reev Setting
：shift left(F2)；
：shift right(F3)；
：confirm(F4)；
：return to the previous menu(F5)；
By press the key “1-9”to set the main hook reev and press F4 for enter and F5 to back up to the previous menu.
5.4.3Hook Weight Setting
Press number enter into the “Hook weight setting”.
Pic.8hook weight setting
：shift left(F2)；
：shift right(F3)；
：confirm(F4)；
：return to previous menu (F5)；
Set the main hook weight by press number 0-9 and then press F4 for enter and then press F5 to back to the previous menu.
5.5Advanced settings
Under the main interface and press “F2”to enter into the interface “password”, see below.
Pic.9 Password
Enter into the password by the number’s button and you can press F3 to delete the latest input and F4 is used to confirm the password.F5 is to back up to the previous menu.
If you input a wrong password it will show “invalid password please enter again”；if the password is then enter into the “senior setting ”as below
Pic.10Advanced setting
5.6Stop Alarm
When the system overload or system error the system will sound for warning. Press F5 to shut the buzzer.
6.Error code
Press F5 to enter into the error code display,as below show：
Pic11.help
This display show the user the error and how to solve the error such as:
Error code / Error / Cause / EliminationEO1 / Fallen below radius range or angle range exceeded / Fallen below the minimum radius or gone past the maximum angle specified in the respective load chart due to luffing up the boom too high / Luff down the boom to a radius or angle specified in the load chart.
EO2 / Radiusrange exceeded or fallen below angle range / Gone past the maximum radius or fallen below the minimum angle specified in the respective load chart due to luffing down the boom too low / Luff up the boom to a radius or angle specified in the load chart.
EO3 / No this OM / Improper OM setting or enter into prohibited slewing area / Properly choose the OM according to actual operation and slew back to a permitted range
EO4 / Operating mode not existing / Incorrect selecting of OM / Correctly set
Operating mode
according to actual operation or move back to the permissible working area
E13 / Fallen below Lower limit value For the measuring channel“pressure Transducer rod side” / (a)cable leading from the central unit to the pin-axis transducers defective or water in the connectors.
(b)pin-axis transducer
defective
(c)electronic board in the measuring channel defective / a)check cable and
connectors as well and replace, if necessary.
b)replace pin-axis
transducer
c)replace main board
E15 / Fallen below lower voltage limit of the“main boom angle”measuring channel / (a)cable between central unit to the length/angle sensor defective, loose or water
in the connectors
(b)angle sensor defective
(c)electronic board in the measuring channel defective / (a)checkcable &connectors as well and replace
,if necessary
(b)replace angle sensor
(c)replace main board
E19 / Reference voltage defective / (a) reference voltage is less than 4.5V.
(b) A/D converter defective. / (a) check supply voltage
(b) replace main
board
E23 / Exceeded the upper limit value for measuring channel
“pin-axis transducer rod side” / (a)cable between pin-axis transducer to central unit defective or water in the connector
(b) pin-axis transducer
defective
(c)electronic board in the measuring channel defective / (a)check cable and connector, and replace if necessary
(b)replacepin-axis transducer
(c)replace main board
E25 / Exceed the max voltage limit in the “main boom angle”measuring channel / a)cable between central unit to length/angle sensor defective or water in the water
b)angle sensor defective
c) electronic board in the measuring channel defective / a)check cable &connectors replace if need
b)replace angle sensor
c)replace main board
E29 / Reference voltage defective / (a)reference voltage is less than 3.0V
(b)A/D converter defective / a)check voltage supply
b)replace main board
E51 / Error in the firstCRC / a)CRC calibration of the control write/read memory is not correct
b)Error in flash memory
c)Error in main board / a)Replace data CRC
b)Replace the flash memory
c)Replace the main board
E61 / Error in the first data version / Upload the wrong data / Re-upload the data
E80 / Short circuit between length cable and A2B switch / (a)cable to A2B switch defective
(b)A2B switch defective
(c)electronics in the main board defective / (a)check cable
(b)check the A2B switch
(c)replace main board
7. Daily Maintenance
7.1 Notice：
The parts of the load moment system have been done accurately adjustment before delivery. So the operator can not remove the crust without professional training. Otherwise, moisture and dust will enter the internal institutions, and can not guarantee the normal work.
Do not cause the excessive vibration to the parts of the load moment, such as host, display and transducer.
The display panel should be wiped with cotton wool.
Do not wash the parts of the load moment with water directly, and our company takes no responsibility for any loss.
7.2 Must Check Option：
Please check the interface of all components and if any damage please replace it or contact the service people.
Check all the cable connection of the system. Damaged cables shall to be replaced immediately.
Check the insulating layer of the length sensor and A2B switch cable and the cable guides. If the insulating layer or the wire inside damaged, you should replace one immediately.
Caution: People that not trained by professional training not allowed to adjust the LMI system and not allowed to replace the components or cable.
Appendix1. Working condition code
Operation mode / Operation mode Ⅱ / definition01
Main boom / 01 / Weight expand
81 / Weight draw back
Table 1.OM Definition
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