PAT DS 50 Manuale di programmazione
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TSM DS 50-003/REV.C/031-300-190-003/04-20-07
DS50 TROUBLE SHOOTING MANUAL LEVEL 3
Overload Warning
System DS 50
Trouble Shooting Manual
Level 3
- Calibration Adjustments
-
Grove
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TSM DS 50-003/REV.C/031-300-190-003/04-20-07
DS50 TROUBLE SHOOTING MANUAL LEVEL 3
NOTICE
The information in this document is subject to change without notice.
PAT makes no warranty of any kind with regard to this material, including,
but not limited to the implied warranties of merchantability and fitness for
a particular purpose.
PAT shall not be liable for errors contained in this manual or for incidental
or consequential damages in connection with the furnishing, performance,
or use of this manual. This document contains proprietary information
which is protected by copyright. All rights are reserved.
No part of this document may be photocopied, reproduced or translated
to another language without the prior written consent of PAT.
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TSM DS 50-003/REV.C/031-300-190-003/04-20-07
DS50 TROUBLE SHOOTING MANUAL LEVEL 3
Table of contents
Item Content Page
1. Introduction to troubleshooting the PAT Overload Warning System DS50
1.1 System outline 6
1.2 System operation 8
1.3 Troubleshooting care 9
2.1 The hand terminal 11
2.2 The hand terminal connection 13
3.1 The start up menu 14
3.2 Displaying data and messages 15
3.3 The test program 17
3.4 The on-line mode 19
4 Adjusting calibration data 21
5 Identify the problem 22
6 Adjusting overload cut off factor 23
7 Adjusting empty hook load display 25
8 Adjusting radius display under load 27
9 Adjusting load display 29
10 Transferring EEPROM data 31
11 Error code messages 41
12 Removing test and calibration Equipment 45
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TSM DS 50-003/REV.C/031-300-190-003/04-20-07
DS50 TROUBLE SHOOTING MANUAL LEVEL 3
CAUTION !
The use of the equipment and the procedures in the following sections allow data
change of the microprocessor system DS50 and its calibration.
Therefore only trained and authorized service personnel shall proceed with the
procedures and data adjustments described in this manual. Incidental errors in the
calibration or software change may result in a fatal accident. Always verify software
change or calibration change results.
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TSM DS 50-003/REV.C/031-300-190-003/04-20-07
DS50 TROUBLE SHOOTING MANUAL LEVEL 3
NOTICE
THIS TROUBLE SCHOOTING MANUAL “DS 50 - LEVEL 3” IS DESIGNED TO
ASSIST THE SERVICE OR MAINTENANCE PERSONNEL IN ADJUSTING THE
EXISTING CALIBRATION DATA AND TRANSFERRING CALIBRATION DATA INTO
A REPLACEMENT DS 50 CENTRAL UNIT.
THIS TROUBLE SHOOTING MANUAL DOES NOT REPLACE ANY CALIBRATION
INSTRUCTION. THEREFORE IT SHOULD NOT BE USED AS A CALIBRATION
MANUAL.
IN ORDER TO PERFORM THE ADJUSTMENTS IN THIS TROUBLE SHOOTING
MANUAL YOU REQUIRE A SPECIAL TOOL SET. THE TOOL SET CONSISTS
OF A HAND TERMINAL AND A SET OF CABLES FOR COMMUNICATING WITH
THE DS50 CPU BOARD. WE ASSUME THAT REGULAR MAINTENANCE AND
SERVICE TOOLS AND A DIGITAL VOLTMETER ARE AVAILABLE ON SITE.
THIS TROUBLE SHOOTING MANUAL DS 50 - LEVEL 3- IS THE CONTINUATION
OF TROUBLE SHOOTING MANUAL DS 50 - LEVEL 1- AND -LEVEL 2- AND
ASSUMES THE KNOWLEDGE OF THE CONTENT OF THE PREVIOUS LEVELS .
WE SUGGEST THAT ONLY TRAINED MAINTENANCE AND SERVICE PERSONNEL
PROCEED WITH THE TROUBLE SHOOTING DESCRIBED IN THIS MANUAL.
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DS50 TROUBLE SHOOTING MANUAL LEVEL 3
1. INTRODUCTION TO TROUBLESHOOTING THE PAT DS 50
1.1. SYSTEM OUTLINE
The PAT Overload Warning System Model DS 50 is designed to disable the
boom down and up, hoist up and tele out crane functions when the crane
attempts to lift over its limits. These limits are specified in the load capacity
chart provided by the crane manufacturer.
When the DS 50 system detects an overload condition the following crane
functions are disabled immediately.
a. telescope out
b. boom up and boom down
c. hoist up
To remove the overload condition the operator must achieve a safe working
condition. This can be achieved by lowering the load and repositioning the
crane or decreasing the radius by telescoping in. Observe that the radius can
not be decreased by lifting the boom. The boom up function is disabled while
attempting to overload the crane.
The system design allows you to operate the crane in an emergency situation
or system failure without the DS 50 system in operation. In this situation leave
the crane electric switch in the off position and press the override button while
you operate the crane manually. The DS 50 Overload Warning System is not
operative and can not warn the operator with the electric power switch in off
position.
Warning
Bypassing the DS 50 Overload Warning system
may results in property damage, injury or death.
The DS 50 system contains a central unit with integrated length and angle
sensor. The load cell is supporting the hoist drum and used to measure the
load on hook.
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DS50 TROUBLE SHOOTING MANUAL LEVEL 3
1. INTRODUCTION TO TROUBLESHOOTING THE PAT DS 50
DS 50 SYSTEM
LENGTH CABLE
BOOM
LOAD CELL
PROXIMITY
SWITCH
BOOM LIFT
CYLINDER
HOOK BLOCK
MAST
LENGTH CABLE MOUNT
LENGTH CABLE ENTRY
HOIST DRUM
CABLE CONNECTORS
LENGTH SENSOR - UNDER COVER-
Note: The drawing shows
the model FMTV-W.
The FMTV-C has only single
line capability.
DRAWING 1.1 - SYSTEM LOCATION (FMTV-WRECKER)
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DS50 TROUBLE SHOOTING MANUAL LEVEL 3
1. INTRODUCTION TO TROUBLESHOOTING THE PAT DS 50
1.2 SYSTEM OPERATION
The Microprocessor Central Unit operates as the control center of the system.
The length cable is connected to the boom nose. During telescoping the length
cable spools off a drum which turns the length potentiometer using a gear
assembly. The length potentiometer is a variable resistor which varies linearly
with the boom length. An angle sensor is built into the central unit which senses
the boom angle. The load cell provides the signal to calculate the load on hook.
The proximity switch located on the hoist drum switches to a different calibration
factor during spooling off the hoist rope. This will allow a steady load calculation
and compensates for the difference in the lever arm. All together the signals get
processed in the central Microprocessor unit where actual and rated load are
compared. The system de-energizes a relay and disables the appropriate crane
functions when the actual load exceeds the rated load by more than 10%.
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DS50 TROUBLE SHOOTING MANUAL LEVEL 3
1. INTRODUCTION TO TROUBLESHOOTING THE PAT DS 50
1.3. Troubleshooting Care
• Keep in mind while troubleshooting high quality electronic
components to use caution and necessary care while testing and
measuring DS 50 components and circuits of the crane electric's.
• Tools and test equipment must be in good order and shall be inspected
on a regular basis.
• Follow all safety instructions according to crane manufacturer’s
handbooks and safety instructions. Obey recommended practice and
safety standards applying to the job site.
• Secure the working area prior to testing and servicing the system.
• Never remove the load cell without firm support holding the hoist drum.
• Never let the length cable snap back to the central unit. The length
sensor drum is under high tension.
Warning
DS 50 Overload Warning System service and repair work
shall be performed by trained and authorized personnel only.
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DS50 TROUBLE SHOOTING MANUAL LEVEL 3
1. INTRODUCTION TO TROUBLESHOOTING THE PAT DS 50
Crane power switch Crane electric
junction box
Outrigger extend
proximity switches-
FMTV-Cargo only.
Hook block storage position
DRAWING 1.2 - Crane storage position
Note: The drawing shows
the model FMTV-W.
The FMTV-C has only single
line capability.
Caution !
Crane is shown folded for transportation.
For lifting operations the mast has to be in full upright position
and the hook lifted out of the transportation storage.
Altri manuali per DS 50
4
Indice
Altri manuali PAT Attrezzature per l'edilizia
