Hirschmann PAT

HIRSCHMANN
Contents
maestro General Information 1
LMI System Safety Instructions 2
Installation Instructions 3
Start-up Procedure 4
Procedures 5
Troubleshooting
Moisture 6
Error Codes 7
Spare Part Numbers 8
Version History 9
End User Installation

Manual
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© 2007 Hirschmann, Chambersburg, PA 04/27/07 2
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CONTENTS
1 GENERAL INFORMATION ............................................................ 5

2 SAFETY INSTRUCTIONS .............................................................. 5
2.1 Tools required ................................................................................. 6
2.2 What is new or changed?................................................................ 6
2.3 What remains same? ...................................................................... 6
3 Installation Instructions................................................................ 7
3.1 Central processing unit.................................................................... 7
3.2 Console ........................................................................................... 8
3.3 Pressure transducers ...................................................................... 9
3.4 Maestro system wiring (0006 Central Unit) ................................... 11
3.5 Maestro system wiring (0011 Central Unit) ................................... 12
3.5.1 Sensor installation ......................................................................... 13
3.5.2 Relay installation (maestro central unit 0006) ............................... 14
3.6 Data acceptance or using data EPROM from previous system.... 15
3.7 Data EPROM extraction from previous system ............................ 15
3.8 Cable Reel LWG208/0001 Manual Adjustment Procedure .......... 16
3.9 Automatic sensor adjustment via the console............................... 17
4 Start-up procedure ...................................................................... 20
4.1 Checking the data display ............................................................. 20
4.2 Final tests ...................................................................................... 20
4.2.1 LMI system test procedure ............................................................ 21
5 Procedures................................................................................... 22
5.1 Main Board Replacement Procedure ............................................ 22
5.2 Cable Reel Length Cable Replacement Procedure ...................... 23
6 Troubleshooting moisture.......................................................... 24
6.1 Water Ingress ................................................................................ 24
6.2 Condensation ................................................................................ 25
7 Error Codes.................................................................................. 26
8 Spare part numbers .................................................................... 31
8.1 maestro Console ........................................................................... 31
8.2 Pressure Transducer (DAVS300/3401) ........................................ 31
8.3 Maestro Central Unit ..................................................................... 32
9 Version History ............................................................................ 33

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HIRSCHMANN maestro - Installation Information
1 GENERAL INFORMATION
This manual describes the procedure for installation of the HIRSCHMANN maestro system as a
replacement for older PAT systems.
Well-grounded knowledge regarding the method of functioning of load moment indicators as well
as knowledge of the start-up procedure and adjustment of such systems are required. In some
cases knowledge of the operation and use of burning devices for EPROM’s is also required.
Please always comply with the safety instructions!
If you have any questions, please contact your authorized regional dealer.
2 SAFETY INSTRUCTIONS
The following safety instructions must always be observed and complied with.
CAUTION
To prevent material damage and serious or even fatal injuries to staff, the correct ad-
justment of the LMI has to be ensured before starting operation of the equipment.
The LMI can only function correctly after the conversion, if the following points have
been complied with:
- the correct installation and wiring of all hardware components

- the transfer of the data contents of the old system
- the checking and if necessary adjusting of the zero points of the sensor technology
- the checking of the data display
- a functionality test of the entire system and in conclusion a load test
It is imperative that the operational and safety instructions as well as the load charts
provided by the crane manufacturer, particularly for specific operating conditions and
load limits, are always referred to.
CAUTION
This system can be equipped with a bypass function, which bypasses the switching-off
of the control lever function by the LMI or the A2B switch (-es) system. The bypass
control switches must only be activated in emergencies and by authorised staff. Fail-
ure to comply with this instruction can result in material damage and serious or even
fatal injuries to staff.
The information in this document is subject to change without notice. Hirschmann 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. Hirschmann shall
not be liable for errors contained herein 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 reserved. No part of
this document may be photocopied, reproduced, or translated into another language without the prior written consent of Hirschmann.

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2.1 Tools required
 Installation tools for mechanical and micro-electric work as:

o Multimeter, Tools for Wiring – Crimping tool, knife, cutter etc.
o Screw Drivers, Wrenches, Welder, Digital level
2.2 What is new or changed?
 Central Unit has changed to the Maestro Central Unit.

 The maestro console in now used in place of the DS 100, DS 200, DS 350 KD/LC, DS 350
G,E,GW consoles.
 Pressure Transducers, KMD Loadcells, SKM Lineriders will need to be modified or replaced
by CURRENT Output type sensors (4-20 mA).
 You can either use the same Cannon Plug Cables with adaptor available or use new 5 pin
cable for Pressure / Load Sensors.
 Any additional Length / Angle Sensor will be changed to Current Type (4-20 mA)
 Data Eproms will need to changed if not already a 27C256.
 Elimination of the Lightbar option.
2.3 What remains same?
 Main Cable Reel will remain with Voltage Outputs.

 A-2-B Switch remains same.
 Most Cables will remain same, except for: Load Sensors, 7 cond. cables from cable reel to
C/U, and Console cable.
 All Digital Inputs & outputs cables remain same.
 Data Eprom from DS 350 G,E & GW and some DS 150 & DS 350 KD/LC’s will remain the
same. If the Data Eprom is 27C256, you can use it as it is.

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3 Installation Instructions
The following instructions are to simplify the conversion of the old LMI system to the HIRSCH-
MANN maestro LMI.
3.1 Central processing unit
Before uninstalling the current central unit, be sure to note the locations of each wire be-
fore disconnecting them from the terminal strips. (A wiring diagram of the previously in-
stalled system will be useful.) It is necessary to note all Digital Inputs and their respective loca-
tions before disconnecting them from the original central unit to ensure proper reinstallation.
Ex. DI 1: Outriggers, area definition DI 2: Rubber, area definition DI 3: No load/ Power pin fly
Carefully remove the Data EPROM from the original central unit. This EPROM will be reinstalled
into the new data EPROM module at a later point. Please contact your authorized regional
dealer with any installation questions.
Install the maestro central processing unit in such a way that the old electrical wiring can be
retained as far as possible. This can be done to install the Maestro C/U at same place as of Old
C/U. However, since, Maestro C/U is smaller in Size than most of the previous PAT C/U’s, it
would be advisable to install it inside the crane cabin behind the operator’s seat. If installing the
C/U inside the Crane Cabin, ensure that the existing cables are long enough to reach inside the
Cabin after re-routing. Instead of welding the mounting squares of the C/U, you may also use
Flat Bars with holes at each end, enabling the use of the existing holes.
Note that you may be required to modify the Strain reliefs in the C/U depending on the amount
and size of wires being used. If an extra hole is needed you can remove the breather from the
side of the C/U and utilize this hole, always leave a drip loop in the cables for external mounted
C/U’s.

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3.2 Console
Install the maestro console with proper positioning within the field of vision and operating area
of the crane operator.
There is a standard length of cable (with multi-pin connector) supplied with the Maestro console.
Ensure there is an adequate length of cable between the console and the central unit.
The console has a mount that allows the

console to be swiveled into any direction and
to be mounted in a variety of locations and on
nearly any surface. Choose a location that is
in line of site of the sensor and within reach of
the operator. Securely attach the two RAM
mount bases onto a solid surface for the left
and right side operation. The console cable
may not fit through goose neck/conduit as
existing wiring; therefore, run the console
cable to the outside of the conduit and insure
there no interference.

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3.3 Pressure transducers
CAUTION
Prior to replacing hydraulic connections of Pressure Transducers, these must be de-

pressurised!
The boom should, first of all, be completely put down and the derrick / lift cylinder de-
pressurised after that.
The pressure transducers of the old system can only continue to be used (in case of GC sys-
tems), if these have a signal output of 4…20 mA. A three-pole cable matcher from three-pole
Canon to M12x1 is available for the electrical connection.
In the case of the older systems pressure transducers with voltage output are, however, nor-
mally in use, which should be replaced with the new pressure transducers of the DAVS
300/3401 SA type with the same pressure range. In this case it is advisable to also replace the
feeder cables at the same time with new cables with pre-assembled connection plugs, which are
included in the scope of supplies of the maestro conversion kit.
Pressure Transducer (DAVS300 / 3401)

Part Number 031-300-060-452 (4.20mA, 300 bar, M12, 9/16-18)
There are no spare parts associated with the pressure transducer; the following parts are use to
make a hydraulic connection to a 9/16-18 JIC fitting.
000-209-140-016 Pressure Transducer Cutting Ring Seal
031-300-050-689 Pressure Transducer Adapter, 9/16-18 UNF-2B, M16 X 1.5
You will need hydraulic adaptors to suit the new pressure transducers. The details are shown on
the next page:

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3.4 Maestro system wiring - 0006 Central Unit

(prior to May, 2006)

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3.5 Maestro system wiring (0011 Central Unit)

(May, 2006 – current)
VX3
VX1 VX2 VX4
XK2
XK3

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3.5.1 Sensor installation

Reconnect all sensors through the provided locations: Length / Angle Sensor, A-2-B Signal from
Cable Reel, Console, Pressure Transducers and Digital inputs and outputs of the crane electrics
(Power source and Lock-out to Crane). Ref. 3.4 maestro wiring diagram.
MAIN BOARD
024-050-300-046
KEYSWITCH, 024-350-100-661
SPARE KEY, 050844

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3.5.2 Relay installation (maestro central unit 0006)

(Ref. 3.4 maestro system wiring)
1. Connect the wires to the relay as described and shown below:

 Yellow wire to relay terminal #85
 Black wire to relay terminal #86
 White wire to relay terminal #30
 Orange wire to relay terminal #87
2. Mount the relay to the plastic adhesive holder as shown:
3. The load/A2B lock wire (wire #3 in power cable) will be crimped into the empty ¼” female
crimp terminal that is in terminal 1.
Crimp lockout wire in ¼”

female crimp terminal 1

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3.6 Data acceptance or using data EPROM from previous system
A distinctive feature of the Hirschmann maestro system is the possibility of data acceptance
from a multitude of older PAT systems (see list in chapter 2.1) to convert the data, instructions
are provided below for the acceptance with various PAT systems. This means, you can insert
Old Data Eprom from Old System without any changes in the software. However, the accep-
tance of these Data Eproms is limited to the Types / System Codes given in Chapter 2.1.
If any uncertainty or doubt exists as to whether the data can be accepted in your particular case,
please contact Hirschmann or an authorised and trained regional dealer to have the conversion
capability checked.
3.7 Data EPROM extraction from previous system
1. Remove cover, from central unit.

CAUTION: Before handling the EPROM, discharge any static electricity from your body by
touching a grounded point. The EPROM could be damaged by static electricity.
2. Remove the old DATA EPROM, from the main

board. Be careful to pull the EPROM out,
without bending the legs. Refer to drawing
at right.
NOTE: The notch on the EPROM and
in the socket determines the correct
orientation of the EPROM.
Refer to the drawing below for correct
EPROM locations.
3. Carefully align the new EPROM legs with the

socket and push the EPROM into the EPROM module. Be
careful not to bend any of the legs.
Data EPROM location

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3.8 Cable Reel LWG208/0001 Manual Adjustment Procedure

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3.9 Automatic sensor adjustment via the console
Input Display (examples) Comments

Conditions:
 To start, ensure the boom is completely
down, retracted, depressurised, and en-
gine power turned off.
 Remove Jumper from J1 and place
on Br 1 of data EPROM module.
 Turn on crane power.
 A valid operational mode must be se-
lected. No error message present.
 While power is on, relocate the bridge
from position Br 1 to Br 3 of the data
EPROM module to start the sensor ad-
justment function.
After closing the bridge B3 two additional

values for pressure at the cylinder and rod
will appear in the middle of the display.
PRESS
To highlight the first adjustment value.
Adjustment of pressure at the cylinder
Display for pressure at the cylinder flashes.

By means of brief, simultaneous pressing
the and keys the value for pres-

sure at the cylinder is set at “zero”.
Press to highlight the next adjustment

value.

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Adjustment of pressure at the rod
Display for pressure at the rod flashes.
By means of brief, simultaneous pressing
the and keys the value for pres-

sure at the rod is set at “zero”.

value.
Adjustment of the main boom length
(shortest length)
The boom must be completely retracted
with length potentiometer adjusted counter-
clockwise to a soft stop! (.5V on term. 14)
Do not try to adjust the length, this is
pre-set in the software and is the actual
boom length. If you have the original cali-
bration sheet, this value should match the
length displayed. If in doubt contact the
authorized dealer.
The minimum boom length value is pre-set
in the original crane software, ONLY a con-
firmation of this length is required. To
confirm this value, simultaneously press the
and keys to reconfirm the mini-

mum boom length stored in the DATA-
EPROM.
CAUTION: Do not attempt to arrow
up/down to change this indication!

value.

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Adjustment of the main boom length
(greatest length)
The boom must be completely extended!
Display for length of main boom and the
prewarning light flash.
Do not try to adjust the length, this is
pre-set in the software and is the actual
boom length. If you have the original cali-
bration sheet this should match the length
displayed. If in doubt contact the authorized
dealer.
The maximum boom length value is pre-set
in the original crane software, ONLY a con-
firmation of this length is required. To
confirm this value, simultaneously press the
and keys to reconfirm the

maximum boom length stored in the DATA-
EPROM.
CAUTION: Do not attempt to arrow
up/down to change this indication!

value.
Adjustment of the main boom angle
Display for angle of main boom flashes.

Measure the boom angle to the horizontal
with an angle spirit level and input this value
by pressing key or .

value.

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Adjustment of force measurement*
*in the case of systems with load recording
via a force measurement this additional
adjustment stage is also displayed.
Display for force measurement flashes.
By means of brief, simultaneous pressing of
the and keys the value for the

force measurement is set at “zero”.

value.
End the process with a final pressing of the
key.
After that the adjustment process is con-

cluded. The calibration values are stored.
Remove the bridge Br 3 and reinstall in
Br 1. (Bridge must be moved to Br 1 before
crane power is turned off, to avoid an error)
4 Start-up procedure
The start-up procedure of the new system is normally shortened a great deal in terms of time
due to the transfer of the contents from the central processor memory and the automatic sensor
adjustment. It is nevertheless necessary to check the contents of the data displays.
4.1 Checking the data display
Check the geometric data, which are shown on the display, by measuring for accuracy. If devia-
tions arise, these can only be taken in hand by the inputting of correction values in the
EEPROM. (Ref. 5.5 LMI test procedure)
If necessary, you can use Hand Terminal to correct any data as usual for old PAT systems.
4.2 Final tests
When all of the settings have been made, it is still necessary for the system to be checked and
load testing completed in accordance with the manufacturer’s specifications.
(Ref. 4.2.1 LMI Test Procedure)

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4.2.1 LMI system test procedure
WARNING
Do not operate the crane out side the permissible operating range for the
type of crane / capacity chart being tested.
1) Most crane manufacturer calibrate the cranes with the jib removed it is recommended that this is done to
carry out the following test. How ever on some cranes this might not be the case, if in doubt contact the
manufacturer.
2) For calibration verification a test load is to be employed for each of the following configuration;
NOTE: For safety reasons first measure the allowable radius for the load being used have a spotter to
ensure the system stops the functions at or before this point.
3) Maximum Boom Length and Middle Radius (select a load that will lock out the functions about the middle of
the load chart in the long boom length step)
4) The following test should be recorded signed and dated. A copy of this test sheet should be available at all
times.
5) Test load to be applied by suspending known weights accurate to +/-1%. Weights of all additional equipment
such as blocks, slings, sensors, etc., are included in the test load. The total load is to be known to an accu-
racy of +/-1%.
With extended boom and the load suspended, move the load smoothly from the short radius to overload lock out,
measure and record radius, calculate cut off % see section 6. Ensure the appropriate functions are disabled.
6) Computations:
For each radius measured in the above tests refer to the applicable load rating chart and determine the rated
load. At radii intermediate to those on the load chart, rated load shall be determined by linear interpolation
unless otherwise specified by the crane manufacturer.
The system accuracy is to be determined from the following formula:
TEST LOAD x 100 = % OF RATED LOAD

RATED LOAD at cut off radius/angle
7) The actual load which activates the overload lock out is not less than 90% of the rated load nor more than
100% of the rated load for the corresponding actual load radius or boom angle.
Note: This is a general standard and variations may exist, if in doubt contact the crane manufacturer.
CALIBRATION TEST
CRANE S/N:_____________
Op/ Parts of Main / B Main / B Jib / Ext Jib Actual Indicated Actual Indicated Cutoff
Mode Line Length Angle Length Offset Load Load Radius Radius %

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HIRSCHMANN maestro - Procedures
5 Procedures
5.1 Main Board Replacement Procedure
Refer to section 8.2, central unit parts list for board location.
1. Turn system power off.
2. Remove the central unit lid.
NOTE: Take care not to damage the boards with the screwdriver, when removing and inserting
screws.
NOTE: Use care when lifting the CPU module board and analog input module from the main
board, due to the fact that these boards have pins on the bottom side, which insert into
the main board.
3. Disconnect the wiring by unplugging terminal blocks, ensure all blocks and wires are marked
to simplify installation. If disconnecting wires from terminal blocks refer to the system wiring
diagram in this manual or in the central unit lid for wiring connections.
4. Remove the EPROM module board by taking out the 2 small Philips screws holding it in
place.
5. Remove the system EPROM.
6. Remove the main board by taking out the 4 Philips screws holding it in place.
7. Take notice of the orientation of the main board in the central unit. Remove main board and
place in the packing material that the replacement main board came in.
8. Carefully insert the new main board in place.
9. Insert the 4 Philips mounting screws.
10. Insert system EPROM.
11. Insert EPROM module board by lining up the pins into the sockets X14 and the 2 screw
holes.
12. Insert the 2 small Philips screws and washers.
13. Connect the X1 terminal blocks/wires to the main board. Refer to the system wiring diagram
in this manual or in the central unit lid for wiring connections.
14. Turn power on and test system.
15. Inspect the gasket for nicks, cuts, or damages before installing and tightening the cover.

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5.2 Cable Reel Length Cable Replacement Procedure
Replace length cable using the following procedure:

Refer to system electrical wiring diagram and cable reel - parts list
1. Cut old cable at cable drum.

2. Disconnect damaged length cable from junction box at the boom nose.
3. Open cable reel cover and disconnect wiring from terminal block. Pull 7 conductor cable out
of strain relief. Note: Mark wires to make connection simpler after cable installation.
4. Remove cable reel from mounting brackets.
5. Remove damaged length cable, which is mounted to the slip rings in the cable reel, from slip
ring terminal.
6. On the backside of the cable reel, open the strain relief attached to the axle in the center of
the drum. Pull existing length cable out of the cable reel.
7. Pull new length cable through the hole, pipe and strain relief and push it through the axle of
the reeling drum. Tighten new strain relief to ensure sealing.
8. Reconnect the length cable to the slip ring.
9. Remount cable reel to the boom.
10. Turn reeling drum clockwise to spool the new cable neatly onto the drum.
11. Set pre-load on cable reel by turning the drum counter-clockwise 5 to 8 turns.
12. Run the new length cable through the cable guides and wrap the length cable around the
boom tip anchor pin (4 or 5 wraps) and secure with tie wraps. Leave enough length cable to
connect into the boom tip junction box.
13. Connect the length cable into the boom tip junction box.
14. Reset length potentiometer in length angle transducer (screw is located in center of white
gear); with boom fully retracted, turn potentiometer carefully counter-clockwise until it stops.
Recheck length and angle display. Refer to Cable Reel LWG308/0001 Adjustment Proce-
dure.

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6 Troubleshooting moisture
The maestro contains electronic components in various locations, such as central unit, sensors,
junction boxes etc. These internal components cannot be designed to withstand exposure to
moisture over a longer period of time. For this reason, the housings of the components are water
protected according to IP 65. If you find water or moisture inside any of the housings, the source
for the water ingress has to be detected and corrected to ensure proper operation.
There are two major possibilities for the occurrence of excessive moisture inside an enclosure:
1) Water ingress
2) Condensation
This outline gives instructions for detecting the cause for excessive moisture by using simple
troubleshooting methods and how to prevent the moisture ingress from happening again.
6.1 Water Ingress
There are 6 possibilities for water to enter an enclosure:
1) Spray Cleaning
2) Missing / Loose Screws
3) Bent Lid
4) Defective Gasket
5) Loose Strain Relieves
6) Water Entry Through External Cabling
It is possible to find out the source of water ingress by going through the following steps and
ruling out one possibility after the other until the cause is identified:
1) Spray Cleaning
The enclosures used for the maestro system are water protected to IP 65. This means pro-
tection against the environment, such as rain. However, through the use of spray cleaner at
short distances, it is possible to force water through the gasket or strain relieves. For this rea-
son, avoid spraying any components from short distances with spray cleaners. Convey this
fact to any member of a maintenance crew.
2) Missing / Loose Screws

All screws have to be present and to be equally tight to ensure water protection of the enclo-
sure. If there are screws missing, replace them. If no screw is missing, check the tightness. If
any were loose, then open all screws and then re-tighten them equally.
3) Bent Lid
An enclosure will only seal correctly if the lid is not bent. To check this, loosen all screws of
the lid, take the lid off the box and visually inspect it for deflection. If the lid is bent or dam-
aged, it needs to be replaced. Try to determine what has caused the lid to be bent and elimi-
nate the reason for that. Order a new lid through your Hirschmann representative.

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4) Defective Gasket
The gasket underneath the lid seals the unit. The gasket needs to be in good condition in or-
der to seal correctly. If the gasket is torn, brittle or severely bent, it needs to be replaced. Or-
der a new gasket through your Hirschmann representative.
5) Loose Strain Relieves

The strain relieves allow cabling to enter the box without allowing water to enter it. The strain
relieves have to be correctly tightened in order to do this. Check the tightness by taking the
external cable into one hand and carefully trying to turn it. If the internal wires turn with the
outer cable, the strain relief is loose. Get a new grommet (insert) through your Hirschmann
representative and replace the existing one with the new one. Tighten the strain relief cor-
rectly. Note: Whenever a strain relief is opened, i.e. to replace a cable, a new grommet needs
to be used. Never re-use any grommet or the strain relief will not seal properly!
6) Water Entry through External Cabling

Even with a tight strain relief, water may still enter the box through the inside of the cable. In
this case, you have to find out why and where water enters the cable. Look for damages to
the cable itself and inspect the opposite side of the cable. In example, if the cable comes from
a connector that is full of water, the water will run through the inside of the cable and fill up the
central unit, too.
6.2 Condensation
In a climate with high humidity and rapidly changing temperatures, condensation can happen
inside any enclosure, usually the larger the volume of the box, the more likely. In this case, water
drops build up on the inner components when humid air is trapped inside the box. With conden-
sation, water tightness is not a problem – the box is sealed just fine, which is what prevents the
trapped air from exiting the box. There are two ways to deal with condensation:
1. If the volume is very small, a desiccant bag might be able to soak up the air’s humidity.
2. If the effect is more severe, the only way to get rid of this effect is then to give the box the
ability to breath without sacrificing its water tightness. Contact your Hirschmann repre-
sentative for breathing elements to than can be added to the box and will help to reduce
the effects of humid climates.

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Error Codes
7 Error Codes
Error Code Error Cause Remedy

Overload  cutoff due to overload  reduce load moment
prewarning
A2B switch  the A2B switch is activated  lower the hook block
E01 Fallen below radius range  fallen below the minimum  luff up the boom to a radius
or angle range exceeded radius or gone past the or angle specified in the load
maximum angle specified in chart
the respective load chart
due to luffing up the boom
too far
E02 Radius range exceeded or  gone past the maximum  luff down the boom to a ra-
fallen below angle range radius or fallen below the dius or angle specified in the
minimum angle specified in load chart
the respective load chart
due to luffing up the boom
too far
E04 Operating mode not ac-  A non existing operating  Set the correct operating
knowledged or non permit- mode has been selected mode for the operating state
ted slewing zone in question
 The boom is in a non-  Slew the boom to a permit-

permitted slewing zone ted area.
E05 Forbidden length range of  Boom has been extended  Retract or extend boom to
the main boom too far or not enough, e.g. if the correct length.
operation is only admitted
up to a certain boom length
or for load charts of jibs with
the boom having to be ex-
tended to a certain length.
 The length sensor adjust-  Retract the boom. Check the
ment was modified, e.g. prestress of the cable reel
rope slid off the length sen- (the rope has to be under
sor reel. traction). Open the length
sensor and carefully turn the
length pot counterclockwise
to the detent by use of a
screwdriver.
 Clutch between length sen-  Completely replace the
sor pot and drive is defective clutch with the drive wheel
and adjust length sensor pot
 Failure of the +5V-supply for  Check +5V-voltage. If there
the analog part of the LMI- is no voltage or break down
analog board. at a charge of 50 ohm ap-
proximately, exchange LMI
 Length potentiometer de- board.
fective.  Replace length potentiome-
ter.

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Error Codes
E07 Faulty acknowledgment by  Overload relay defective  Replace LMI board

the overload relay of the
LMI board.  LMI board defective
Relay should be energized

but 2nd contact is indicated
off, or the 2nd contact is
indicated on while the relay
should be deenergized.
E08 No acknowledgement of  cf. error E07  cf. error E07
the anti-two-block switch
relay.
E11 Fallen below limit for the  .Length sensor pot defec-  Replace length sensor po-
measuring channel "Length tive. tentiometer.
main boom".
 Replace LMI board.
 Electronic board in the
measuring channel defec-
tive.
E12 Fallen below the lower limit  Cable between the central  Check cable as well as
value in the measuring unit and pressure transduc- plugs, replace, if need be.
channel "pressure piston ers defective or water inside
side" the plugs
 Pressure transducer is de-  Replace pressure trans-

fective. ducer
 Electronic component in the  Replace LMI main board or
measuring channel is defec- processor board.
tive.
E13 Fallen below lower limit  refer to E12  refer to E12
value in the measuring
channel "pressure rod side"
channel "pressure piston
side Cyl. 2"
E15 Fallen below lower limit  Angle sensor defective.  Replace angle sensor.
value for the measuring
channel "angle main  Electronic part in the meas-  Replace LMI board.
boom". uring channel defective.
channel "pressure rod side
Cyl. 2"
E19 Reference and/or supply  The supply voltage is falsi-  Check the voltages on the
voltage defective fied by one of the sensors LMI main board (AGND =
(DAV, LWG) MP0). Check sensors, plugs
and cable, replace, if need
be.
 Electronic component is  Replace LMI board
defective

031-300-190-196_L.doc
Error Codes
 A/D converter of CPU  Replace LMI board

80C537 defective.
E21 Upper limit value for meas-  Length sensor pot defective.  Replace length sensor po-
uring channel "length main tentiometer.
boom" exceeded.
 Electronic part in the meas-  Replace LMI board.
uring channel defective.
E22 Upper limit value in meas-  refer to E12  refer to E12
uring channel "pressure
piston side" has been ex-
ceeded
uring channel "pressure rod
side" has been exceeded.
uring channel "pressure
piston side Cyl. 2" has been
exceeded
uring channel "angle main
boom" exceeded
uring channel "pressure rod
side Cyl. 2" has been ex-
ceeded.
E29 Reference and/or supply  refer to E19  refer to E19
voltage defective
E31 Error in the system pro-  The system program PROM  Replace system program
gram is defective. PROM (PROM No. 0)
E37 Error in the logic program  The system program PROM  Replace system program
course is defective. PROM (PROM No. 0)
 Computer module 80C537  Replace computer module

defective. 80C537.
 LMI board defective  Replace LMI board

E38 System program and data  The system program in the  Replace the system pro-
EPROM do not match. LMI does not match to the gram PROM or the data
programming in the data EPROM (PROM No. 1)
EPROM
E41 Error in the internal  Computer component  Replace computer compo-
write/read memory (RAM) 80C537 defective nent 80C537.
of the computer component
80C537  CPU module defective  Replace CPU module.
 LMI board defective.  Replace LMI board with

CPU module.
E42 Error in the external  Write/read memory (CMOS  Replace LMI board
write/read memory, 1st part RAM) or LMI board defec-
(RAM) tive.

031-300-190-196_L.doc
Error Codes
E43 Error in the external  refer to E42  refer to E42

write/read memory, 2nd
part (RAM)
E48 Cyclic RAM test: error in  Computer component  Replace computer compo-
the internal write/read 80C537 defective nent 80C537.
memory (RAM) of the com-
puter component 80C537  LMI board defective.  Replace LMI board
E51 Error in the crane data  No valid data in the crane  Load crane data EEPROM
EPROM or EEPROM. data EEPROM. containing valid data.
 Memory module wrongly  Bridge memory module acc.

bridged. to memory type
 Crane data EPROM defec-  Replace crane data EPROM

tive
E56 Error in crane data  Memory module wrongly  Bridge memory module acc.
EEPROM. bridged. to memory type
 Crane data EEPROM defec-  Replace crane data

tive EEPROM
E57 Error in serial crane data  Serial crane data EEPROM  Write data on the serial
EEPROM. does not contain valid data. crane data EEPROM (by
means of test program or
on-line function), then restart
the LMI
 Memory module defective  Replace memory module.
E58 Error in the serial analog  No valid data in the serial  Write data on the serial ana-
data EEPROM. analog data EEPROM. log data EEPROM by
means of the test program,
then, restart the LMI
 LMI main board defective.  Replace LMI main board.
E78 Short circuit in the A2B  Short circuit in the A2B  Replace A2B switch
switch circuit switch
 Short circuit in the cable to  Replace cable to the A2B

the A2B switch switch
E91 No data transmission form  24 V supply of the console is  Check 24 V at terminal X1 of
the console to the central interrupted the console electronics
unit
 Interruption or accidental  Check the connection con-
ground in the line between sole electronics - central
console electronics and cen- unit. In case of an accidental
tral unit ground, the transmitter
module of the console elec-
tronics might be damaged.
Therefore, replaces the con-
sole electronics.
 Transmitter/receiver module  Exchange console electron-
is defective ics or LMI main board resp.

031-300-190-196_L.doc
Error Codes
E92 Error in the data transmis-  Loose connection in the line  Check the connection be-
sion from console to central between console electronics tween console electronics
unit and central unit and central unit
 Transmitter/receiver module  Exchange console electron-
is defective ics or LMI main board resp.
E93 Error in the data transmis-  refer to E92  refer to E92
sion from the central unit to
the console
E94 No data transmission from  Interruption or accidental  Check line to the console (in
the central unit to the con- ground in the line central case of accidental ground,
sole unit - console replace console electronics,
too).
 5 V supply of the computer  Check connection to the
in the central unit is missing power unit
 5 V supply is too low  Exchange the LMI main
board
 Transmitter/receiver module  Replace console electronics
is defective or LMI main board
 Computer module is defec-  Replace processor board.
tive
 Electro-magnetic interfer-  Eliminate the source of inter-
ences (e.g. when switching ferences by inverse diodes
contactors or valves) or varistors.
E95 Error in the console  The console EPROM is  Replace the console
EPROM defective. EPROM
E96 Error in the internal RAM of  The CPU of the console is  Replace the CPU of the
the console. defective. console
 The console main board is  Replace the console main

defective. board.

031-300-190-196_L.doc
Version History
8 Spare part numbers

8.1 maestro Console
Part Number 050-160-060-008
(Refer to system wiring diagram for console wiring connections to central unit)
7
6
1
1
4,5
3
2
* WITHOUT ILLUSTRATION
8.2 Pressure Transducer (DAVS300/3401)

Part Number 031-300-060-452 (4.20mA, 300 bar, M12, 9/16-18)
There are no spare parts associated with the pressure transducer; the following parts are use to
make a hydraulic connection to a 9/16-18 JIC fitting.
000-209-140-016 Pressure Transducer Cutting Ring Seal
031-300-050-689 Pressure Transducer Adapter, 9/16-18 UNF-2B, M16 X 1.5
(Ref. 3.3 Pressure Transducer Installation)

031-300-190-196_L.doc
Version History
8.3 Maestro Central Unit

Part Number 024-160-060-011
(Refer to system wiring diagram for wiring)
NO. PART NO. QTY DESCRIPTION

1 024-000-050-339 1 HOUSING
2 024-050-300-046 1 MAIN BOARD, LMI
3 024-050-300-021 1 DATA EPROM MODULE, JUMPER W/O PROMs
4 024-000-100-281 1 KEYSWITCH, KIT
5 024-000-100-095 1 PRESSURE COMPENSATION ELEMENT, (PG11)
*6 024-000-100-285 1 CUT-OFF RELAY, KIT, 12V
°6.1 024-000-100-282 1 CUT-OFF RELAY, 12V
°6.2 024-000-100-286 1 CUT-OFF REALY, 24V (ALT. STOWED INSIDE CU)
7 000-313-301-002 1 FUSE, 10A
*8 050844 1 KEY, CENTRAL UNIT
* item without illustration ° comprised in lead item

031-300-190-196_L.doc
Version History
9 Version History
Version Date Modifications Name

Vers. A 21.02.2005 Original issue in German Konopka
System program G53T V 2.0 (22.02.2005)
Vers. B 18.03.2005 Corrections and supplements Konopka
Vers. C 13.06.2005 Corrections for Service Engineers K. K. Baghel
Vers. D 12.07.2005 End Users Installation Manual (ECN 05-073) S. Bowman
Vers. E 08.08.2005 Revision to Eprom Installation (ECN 05-148) S. Bowman
Vers. F 08.22.2005 Incorporate suggestions from training (ECN 05-153) S. Bowman
Vers. G 09.19.2005 Attention to preset length, Sales Dept. S. Bowman
Vers. H 11.09.2005 Elimination of “OK” button (ECN 05-204) M. Johnson
Vers. J 10.16.2006 Implementation of 0011 Central Unit (ECN 06-181) S. Considine
Vers. K 04.27.2007 Jumper relocation before calibration (ECN 07-059) S. Considine
Vers. L 07.19.2011 Changed wiring diagram to black and white, changed K. Gase
table outline from turquoise to black

031-300-190-196_L.doc

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HIRSCHMANN

maestro General Information 1

LMI System Safety Instructions 2

Spare Part Numbers 8

End User Installation

1 GENERAL INFORMATION ............................................................ 5

© 2007 Hirschmann, Chambersburg, PA 04/27/07 3

- the correct installation and wiring of all hardware components

© 2007 Hirschmann, Chambersburg, PA 04/27/07 5

2.1 Tools required

 Installation tools for mechanical and micro-electric work as:

2.2 What is new or changed?

 Central Unit has changed to the Maestro Central Unit.

2.3 What remains same?

 Main Cable Reel will remain with Voltage Outputs.

© 2007 Hirschmann, Chambersburg, PA 04/27/07 6

3.1 Central processing unit

© 2007 Hirschmann, Chambersburg, PA 04/27/07 7

The console has a mount that allows the

© 2007 Hirschmann, Chambersburg, PA 04/27/07 8

3.3 Pressure transducers

Prior to replacing hydraulic connections of Pressure Transducers, these must be de-

Pressure Transducer (DAVS300 / 3401)

© 2007 Hirschmann, Chambersburg, PA 04/27/07 9

© 2007 Hirschmann, Chambersburg, PA 04/27/07 10

3.4 Maestro system wiring - 0006 Central Unit

© 2007 Hirschmann, Chambersburg, PA 04/27/07 11

3.5 Maestro system wiring (0011 Central Unit)

VX1 VX2 VX4

© 2007 Hirschmann, Chambersburg, PA 04/27/07 12

3.5.1 Sensor installation

© 2007 Hirschmann, Chambersburg, PA 04/27/07 13

3.5.2 Relay installation (maestro central unit 0006)

1. Connect the wires to the relay as described and shown below:

2. Mount the relay to the plastic adhesive holder as shown:

Crimp lockout wire in ¼”

© 2007 Hirschmann, Chambersburg, PA 04/27/07 14

3.6 Data acceptance or using data EPROM from previous system

3.7 Data EPROM extraction from previous system

1. Remove cover, from central unit.

2. Remove the old DATA EPROM, from the main

3. Carefully align the new EPROM legs with the

Data EPROM location

© 2007 Hirschmann, Chambersburg, PA 04/27/07 15

3.8 Cable Reel LWG208/0001 Manual Adjustment Procedure

© 2007 Hirschmann, Chambersburg, PA 04/27/07 16

3.9 Automatic sensor adjustment via the console

Input Display (examples) Comments

After closing the bridge B3 two additional

Adjustment of pressure at the cylinder

Display for pressure at the cylinder flashes.

the and keys the value for pres-

Press to highlight the next adjustment

© 2007 Hirschmann, Chambersburg, PA 04/27/07 17

Display for pressure at the rod flashes.

By means of brief, simultaneous pressing

the and keys the value for pres-

Press to highlight the next adjustment

and keys to reconfirm the mini-