Altec LMAP User manual

Altec LMAP
(Load Moment and Area Protection)
Telescopic Boom Cranes
Operation
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Greer Part Number: W450240A Courtesy of CraneMarket.com

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Contents
Introduction......................................................................................................................................................................................... 1
System Components............................................................................................................................................................... 1
Anti Two Block (ATB)............................................................................................................................................................... 1
Area Alarm .................................................................................................................................................................................. 1
Boom Angle Sensor................................................................................................................................................................. 1
Display............................................................................................................................................................................................ 1
Extension Sensor ...................................................................................................................................................................... 2
Function Kick-Out ...................................................................................................................................................................... 2
Pressure Transducers........................................................................................................................................................... 2
Operator Alarms....................................................................................................................................................................... 2
LMAP Display.............................................................................................................................................................................. 3
Operation.............................................................................................................................................................................................. 5
Power Up Self-Test................................................................................................................................................................... 5
Adjusting Brightness & Contrast ..................................................................................................................................... 5
Stowing the Jib........................................................................................................................................................................... 6
Erecting the Jib ........................................................................................................................................................................ 6
Selecting the Platform .......................................................................................................................................................... 6
Setting the Parts of Line ...................................................................................................................................................... 7
Cancel Alarm Key ..................................................................................................................................................................... 7
Reset Function Kick-Out......................................................................................................................................................... 7
Operator Alarms....................................................................................................................................................................... 8
Accessing the Operator Alarms................................................................................................................................ 8
Setting Minimum Boom Angle Alarm...................................................................................................................... 8
Setting Maximum Boom Angle Alarm ................................................................................................................... 8
Setting Maximum Boom Length Alarm ................................................................................................................. 9
Setting Maximum Tip Height Alarm......................................................................................................................... 9
Accessing Swing and Work Area Alarms............................................................................................................. 9
Swing Alarms ......................................................................................................................................................................... 10
Setting the Swing Left and Swing Right Alarms (Normal Outriggers).................................................. 10
Enabling the Preset Exclusion Zones
(Models Equipped with No-Span Outriggers) .................................................................................................... 12
Setting the Swing Left and Swing Right Alarms
(Models Equipped with No-Span Outriggers) .................................................................................................... 14
Setting the Work Area Alarm.................................................................................................................................. 17
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1
Introduction
System Components
LMAP Display Unit•
LMAP Computer Unit•
Pressure Transducers•
Extension Reel with length and angle sensors•
Anti Two-Block (ATB) switches•
Cables•
The Load Moment Area Protection (LMAP) system is intended to aid the crane operator by
continuously monitoring the load and warning of an approach to an overload or two-block condition.
Crane functions are monitored by means of high accuracy sensors. The system continuously
compares the load suspended below the boom head with the crane capacity chart stored in the
computer memory. At approach to overload, the system warns by means of audible and visual
alarms. The system can be configured to cause function kick-out by sending a signal to function
disconnect solenoids.
Anti Two Block (ATB)
A switch monitors the approach of the hookblock or overhaul ball to the boom head. The switch is
held in the normal position until the hookblock or overhaul ball raises a weight that is mounted around
the hoist rope. When the weight is raised, it causes the switch to operate. The resultant signal is
sent to the computer via the extension reel causing the ATB alarm to operate and function kick-out to
occur.
Area Alarm
When set, this alarm permits the operator to define the operating zone by only two set points. The
use of this method of setting results in a greatly enhanced working area, and also clearly defines the
operating zone.
Boom Angle Sensor
Boom angle is measured by means of a high accuracy potentiometer, a magnetically dampened
pendulum to prevent erratic voltage changes. It provides a voltage proportional to boom angle. The
boom angle sensor is mounted inside the cable extension reel assembly.
Display
The operator is provided with a continuous display of:
Rated Load•
Actual Load•
Bar Graph showing Percentage of Rated Load•
Radius of the Load•
Boom Angle•
Main Boom Length•
Working Area•
Crane Configuration•
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On-screen messages provide the operator with visual warnings of conditions that occur during
operation of the system.
Extension Sensor
The extension sensor provides an increasing voltage proportional to the extension of the boom. A
cable attached to the boom head provides a low current electrical path for the ATB signal.
Function Kick-Out
Electrically operated solenoids disconnect the control lever functions for boom hoist lower, telescope
out, and winch up whenever an overload or an ATB condition occurs.
Pressure Transducers
Two pressure transducers measure the pressure in the boom hoist cylinder. The resultant Total
Moment signal is processed to provide a continuous display of the load suspended below the point of
lift.
Operator Alarms
These alarms, when properly set by the operator, define the operating range. This is achieved by
means of minimum and maximum angle, maximum height, and/or maximum length. These alarms
can be programmed for each job site and allow the operator to work in a defined area.
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LMAP Display
TEST
SET
MAX
1
5 6 7 8 9 10 11
12
2
3
4
Overload Warning – This red LED illuminates when you reach or exceed 100% of rated1.
capacity. It is accompanied by solid tone alarm and when maximum rated capacity is exceeded
will result in boom function lockout.
Approaching Overload Warning – This amber LED Illuminates when you reach or exceed 90%2.
Rated Capacity. It will be accompanied by a beeping alarm.
Parts of Line – Displays current number of parts of line in use.3.
Load on Hook – Displays the entire hook load weight under the head of the boom, including4.
cable, load block, load handling equipment, and weight of load hanging on hook.
Percent of Rated Capacity Meter - Shows the load as a percentage of rated capacity. As the5.
load increases, the meter level increases to represent the percentage of the rated capacity of
the crane.
Rated Capacity – Displays the rated capacity in the current configuration based on the crane6.
load capacity chart.
ATB Warning – Warns of a potential two-block condition with flashing LED and audible alarm.7.
Boom Length – Displays the current boom length in feet and tenths of a foot.8.
Boom Angle – Displays the current boom angle in degrees and tenths of a degree.9.
Load Radius – Displays the load radius from centerline of rotation.10.
Crane Setup – These keys are used in the setup process to configure the LMAP system to11.
match the current configuration of the crane.
Information Window – Displays crane setup and calibration information as well as warning12.
messages.
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TEST
SET
MAX
16 1713 14 15
19
18
20
Erected Jib – Enables the selection of the jib to be used on the boom. Selects extended or13.
retracted jib when crane is equipped with two stage jib.
Basket Operation – Enables the selection of the platform for man basket operation.14.
Outrigger Configuration – Enables the selection between full and mid span outriggers.15.
Stowed Jib – Enables the selection of the jib stowed on the boom. Also used to stow the16.
erected jib.
Winch Selection – Enables the selection of the winch if the crane is equipped with an optional17.
second winch (for models euipped with auxiliary winch only).
Alarm Cancel – Disables audible alarm. Holding down this key overrides function kick-out.18.
Test Button – Press and hold the test button to initiate a system self test and run diagnostics.19.
Operator Alarm/Set – Enables operator alarms. When an alarm has been set, the LED above20.
this button will illuminate yellow. mWARNING
YOU MUST USE THE CRANE SETUP MODE TO CORRECTLY SET THE LMAP SYSTEM FOR
PROPER OPERATION. THE LMAP SYSTEM SETUP MUST MATCH THE ACTUAL CONFIGURATION
OF THE CRANE SO THAT IT WILL INDICATE THE CORRECT HOOK LOAD AND LIFTING CAPACITY
OF THE CRANE.
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Operation
Power Up Self-Test
Immediately following electrical power up, or by manually pressing the TEST key, the system will
execute a self-test lasting for approximately eight seconds.
TEST
SET
MAX
TEST
During this time, the numerical display segments and bar graph segments are all turned on,
the audible alarm will sound, and alarm indicator lights and all other LED’s are illuminated. The
information window will display the crane model, rating chart number, and units of measure for length
and load.
NOTE At the end of the self-test, the information window will display “CHECK CONFIGURATION
BEFORE YOU CONTINUE”. Press any key to continue, and then verify the setup of the
system to the current configuration of the crane.
Adjusting Brightness & Contrast
Immediately following self-test and the start up screen, the information window will display the
brightness and contrast control functions for two seconds.
TEST
SET
MAX
Press the key adjacent to either “LED Brightness Up” or “LED Brightness Down” to increase or
decrease the brightness of the LEDs on the display.
Press the key adjacent to either “Contrast Up” or “Contrast Down” to increase or decrease the
contrast level of the information window.
NOTE Brightness and contrast can be adjusted at any time during normal operation except
while operator alarms are being set.
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Stowing the Jib
The STOWED JIB key will select between stowed jib
or no stowed jib. The STOWED JIB key is also used to
stow the erected jib. For cranes that do not have jib
options, the message “No Other Stowed Jib Options”
will appear in the information window.
Erecting the Jib
The ERECTED JIB key will select the erected jib when
the stowed jib is selected. The available erected jib
options will be displayed in the information window.
NOTE If the ERECTED JIB key is pressed when
the LMAP System does not have a
stowed jib selected, the message
“There Is No Stowed Jib To Erect” will appear in the
information window.
Selecting the Platform
Pressing the platform key selects the platform for
man-basket operation and will Illuminate the LED that
is under the platform graphic.
NOTE When the platform for man-basket
operation is selected, winch functions
are disabled.
TEST
SET
MAX
INFORMATION
WINDOW
STOWED JIB
TEST
SET
MAX
INFORMATION
WINDOW
ERECTED JIB
TEST
SET
MAX
BASKET BASKET LED
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