GREER Company MG-534 Use and care manual

Link-Belt MG-534
Rated Capacity Indicator System
Calibration

Link-Belt MG-534 Calibration i W450160 10/07
Table of Contents
Introduction......................................................................................................................................................................................... 1
Required Tools ........................................................................................................................................................................... 1
Number Conversion ................................................................................................................................................................ 1
Number Entry ............................................................................................................................................................................. 2
The Display................................................................................................................................................................................... 3
Calibration Mode .............................................................................................................................................................................. 4
Menu 00 – Error Codes ............................................................................................................................................................... 6
Group “A” Fault Codes............................................................................................................................................................ 7
Group “B” Fault Codes............................................................................................................................................................ 9
Group “C” Fault Codes......................................................................................................................................................... 10
Group “D” Fault Codes......................................................................................................................................................... 11
Menu 01 – Crane Data.............................................................................................................................................................. 12
Menu 02 – Zero Sensor............................................................................................................................................................ 14
Boom Extension Sensor Zero.......................................................................................................................................... 14
Boom Angle Sensor Zero .................................................................................................................................................. 15
Menu 03 – Span ........................................................................................................................................................................... 17
Boom Angle Sensor.............................................................................................................................................................. 17
Boom Extension Sensor ..................................................................................................................................................... 18
Menu 04 – Swing Pot Zero...................................................................................................................................................... 20
Swing Pot Zero ....................................................................................................................................................................... 20
Swing Pot Direction .............................................................................................................................................................. 21
Menu 05 – Main Boom Radius/Moment......................................................................................................................... 22
First Length .............................................................................................................................................................................. 23
Second Length ........................................................................................................................................................................ 25
Third Length............................................................................................................................................................................. 27
Menu 06 – Boom Deflection Correction ........................................................................................................................... 30
Menu 07 – Head Angle.............................................................................................................................................................. 32
Menu 08 – Attachments .......................................................................................................................................................... 35
Menu 09 – Winches ................................................................................................................................................................... 37
Menu 10 – Rope Limits............................................................................................................................................................. 39
Menu 11 – Alarms....................................................................................................................................................................... 41
Menu 12 – Digital Inputs........................................................................................................................................................... 43
Menu 13 – Monitor ..................................................................................................................................................................... 44
Menu 15 – Pressure .................................................................................................................................................................. 45
Appendix A....................................................................................................................................................................................... A-1
Glossary of terms ................................................................................................................................................................. A-1

Link-Belt MG-534 Calibration ii W450160 10/07

Link-Belt MG-534 Calibration 1 W450160 10/07
Introduction
This manual describes the calibration process for the Link-Belt MG-534 Rated Capacity Indicator
System (hereinafter referred to as “the system”) in an on-site environment and assumes that there
is no prior knowledge of the geometry of the crane other than data provided by the manufacturer.
This document also assists personnel in obtaining necessary measurements for calibration and in
maintaining a record of the measurements and test results for review and/or comparison when
changes are made. Recording measurements and test results during the calibration process will
ensure an organized and easy to follow calibration.
Required Tools
1/4” nut driver or T15 Torx driver•
Digital or bubble level calibrated and accurate to 0.1° at level•
Minimum 100 foot measuring tape (200 foot may be required) - fiber type graduated in•
tenths of feet
.9 1 ft .1 .2
10 11 1 ft 1 2 3
1.0′
1′-0″ 1′-1″ 1′-23/4″
1.1′ 1.23′
Typical Tape Measure
graduated in inches
Tape Measure
graduated in tenths
of a foot
Note: The computer calculates measurements in feet and tenths of a foot, so having the
correct measure will facilitate entering measurements.
Digital volt/Ohm Meter capable of measurements to three decimal places•
Number Conversion
If you are using a standard tape measure, the measurement must be converted into feet and tenths
of a foot. For example: a distance of 35’–6” would be entered into the system as 35.5 feet. Whole
inches can be easily converted by dividing by 12 (6/12=.5). Fractions of an inch are converted
by dividing the numerator by the denominator. For example: 1/4 inches would be entered as .25
(1/4=.25). Conversion of whole inches and fractions of an inch (for example 6-1/4”) are converted
by first converting the fraction to a decimal and then dividing by 12. In this case 6-1/4” is converted
to 6.25 and then divided by 12 which equals 0.520.
When entering weights, the number must be converted by moving the decimal three places to the
left. For example: a weight of 1,400 pounds would be entered as 1.4, and a weight of 300 pounds
would be entered as .300.

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Number Entry
The system display does not use a numeric keypad. Instead, a range of numbers and characters is
assigned to a particular key.
To select a particular number, press the key adjacent to the
number until it is selected by flashing brackets < >.
When entering negative numbers, select the negative symbol
( - ) first.
Decimal points are entered the same as numbers.
After the desired symbol or number is selected, press the
key adjacent to the number entry field (enter key) to enter the
number.
If an error is made in data entry, selecting the “<” symbol and pressing the enter key will delete one
character. Selecting the “C” symbol and pressing the enter key will erase the entire entry.
Once the desired numerical value is entered, press the key adjacent to Exit. Press the key adjacent
to YES! Calibrate! to confirm the entry.
Press the key adjacent to Exit to cancel the number entry procedure.
LOAD
0.8
ANGLE
41.8
RADIUS
76.2 FT
LENGTH
106.0
Span Sensor
Enter Sensr Span
<0> 1 2 3 4 5 6
[ 63.50 ]
7 8 9 < . - C
Exit
LOAD
0.8
ANGLE
41.8
RADIUS
76.2 FT
LENGTH
106.0
<0> 1 2 3 4 5 6
[ ]
7 8 9 < . - C
Exit

Link-Belt MG-534 Calibration 3 W450160 10/07
The Display
BRIGHTNESS
DISPLAY
SELECT
CRANE
SETUP
OPERATOR
ALARM
ALARM
CANCEL
ALARM
MENU SELECT
DATA ENTRY
LOAD LIMIT
INDICATOR
The Alarm sounds when approaching overload, overload, violation of operator settable alarms, and
other alarm violations. Turn the speaker cover to dampen the alarm volume.
The Brightness keys increase and decrease the brightness of the display.
The Load Limit Indicator notifies the operator of load limit, approaching overload (amber lights), and
overload (red lights).
The Menu Select/Data Entry keys are used to select configuration and select menus and data
values during calibration.
The Display Select key is used to view error codes and enter calibration mode.
The Crane Setup key is used to set or select crane configuration.
The Operator Alarm key is used to configure operator settable alarms.
The Alarm Cancel key is used to mute the Alarm Speaker. Press and hold for seven to ten seconds to
cancel the function kick-out in the event of a two-block or overload condition.

Link-Belt MG-534 Calibration 4 W450160 10/07
Calibration Mode
Use of the functions described in this manual requires that the system be in the calibration mode of
operation.
From the normal working screen, press the “Display/Select”
key.
Press the key adjacent to “Enter Calibration”.
BRIGHTNESS
DISPLAY
SELECT
CRANE
SETUP
BRIGHTNESS
DISPLAY
SELECT
CRANE
SETUP

Link-Belt MG-534 Calibration 5 W450160 10/07
The calibration code sequence is 1-6-3-4. If the
sequence is incorrect or if the sequence is not
entered within 5 seconds, calibration will be aborted
and the normal working screen will appear.
mWARNING
WHEN IN THE CALIBRATION MODE, THE TWO-BLOCK ALARM AND FUNCTION KICKOUT ARE
DISABLED.
BRIGHTNESS
DISPLAY
SELECT
CRANE
SETUP
1
3
4
6

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Menu 00 – Error Codes
Press the key adjacent to 00 Error Codes to view the current
error condition.
The unit will perform a brief sef-test, after which the current
error condition, as well as the unit serial number and program
information will be displayed.
Press the key adjacent to Exit to return to the main menu.
00 Error Codes
Menu Up
Menu Down
Exit
LOAD
0.8
ANGLE
41.8
RADIUS
76.2 FT
LENGTH
106.0
LOAD
0.8
ANGLE
41.8
RADIUS
76.2 FT
LENGTH
106.0
Exit
Errors
A000 B0 C00 D000
MG534 Main Prog.
G450052G
Cal. Serial No.
0008504G
D534147e