KUHN MDC User manual

No 95738 B.GB - 01. 2005
OPERATOR'SMANUAL
MDC
Application rate monitoring
system
for VENTA

DEAR OWNER,
In buying a KUHN machine you have chosen wisely. Into it have gone years of thought,
researchandimprovements.Youwillfind,ashavethousandsofownersallovertheworld,that
you have the best that engineering skill and actual field testing can produce. You have
purchased a dependable machine, but only by proper care and operation can you expect to
receive the performance and long service built into it.
This manual contains all the necessary information for you to receive full efficiency from your
machine.Theperformanceyougetfromthismachineislargelydependantuponhowwellyou
readandunderstandthismanualandapplythisknowledge.PleaseDONOTASSUMETHAT
YOU KNOW HOW TO OPERATE AND MAINTAIN YOUR MACHINE before reading this
manual carefully. KEEP THIS MANUAL AVAILABLE FOR REFERENCE.
YourKUHN dealerwillinstruct youonthegeneral operationofyourmachine. Heisinterested
that you get the best performance possible and will be glad to answer any special questions
that may arise regarding the operation of the KUHN machine.
Your KUHN dealer can offer a complete line of genuine KUHN service parts.
These parts are manufactured and carefully inspected in the same factory that builds the
machine to assure high quality and accurate fitting of any necessary replacements.
When ordering service parts it is important that you indicate the type of machine concerned
and its serial number.
Forthisreasonpleasecompletethemodelidentificationplatediagrambelowwiththerequired
information. This will provide you with an easy reference for future service parts orders.
ABOUT IMPROVEMENTS
KUHN iscontinuallystriving to improveitsproducts and,therefore,reserves the righttomake
improvements or changes when it becomes practical to do so, without incurring any
obligations to make changes or additions to the equipment sold previously.

2
TABLE of CONTENTS
A Description............................................................................................................. 3
B Summary of use .................................................................................................... 4
C Detailed description of the system...................................................................... 6
C 1 Electric power supply................................................................................... 6
C 2 Design.......................................................................................................... 6
D Work and display settings ................................................................................... 8
D 1 Setting the point of reference ...................................................................... 8
D 2 Opening calibration (flow control)................................................................. 9
D 2.1 Setting the seed type........................................................................ 9
D 2.2 Setting the opening......................................................................... 10
D 2.3 Flow control ................................................................................... 10
D 3 Programming the nominal application rate (100% )................................... 11
D 4 Adjustment to the nominal application rate (100%).................................... 12
D 5 Setting the application rate adjustment level.............................................. 12
D 6 Application rate adjustment in %................................................................ 12
D 7 Setting the null flow rate ............................................................................ 13
E Connection to a « Master » terminal (GPS mode)
E 1 Description................................................................................................. 14
E 2 Work and display settings.......................................................................... 15
F System adjustment and calibration .................................................................. 16
F 1 Adjusting the opening pulses...................................................................... 16
F 2 Adjustment of the opening limit points........................................................ 17
F 3 Screen test................................................................................................. 18
F 4 Rotation sensor test ................................................................................... 18
F 5 Motor and sensor pulse test....................................................................... 18
F 6 Setting the maximum amperage................................................................. 19
F 7 Setting the maximum functioning time under maximum amperage............ 19
G Trouble shooting guide..................................................................................... 20
H Symbols ............................................................................................................. 21

3
A Description
1
23 45
6
78
MDC
CAL
REF
kg / ha
+
-100%
F
SP STEP %
9
1 –Screen
2 –« Arrow » keys
3 –« Function » key
4 –« Plus » key
5 –« Flow control » key
6 –« Movement »display
7 –« Minus » key
8 –« 100% application rate » key
9 –Standard connection socket
2 «Arrow » keys ?? Modification of the value.
3 «Function » key ?? Sets system by pressing this key when switching
on.
?? Second function of keys when pressing this key
simultaneously.
?? Store the selected function by pressing and
holding
4 «Plus » key ?? Increase in % of the application rate.
?? Setting the application rate monitoring level (dual
function key).
5 «Flow control » key ?? Setting the seed type (small or large seeds).
?? Programming the opening for carrying out a flow
control .
?? Setting the null flow rate (dual function key).
6 «Movement »display ?? LED lights when metering unit rotates.
7 «Minus » key ?? Reduction in % of the application rate.
?? Setting the point of reference (double function).
8 « 100% application rate » key ?? Adjustment to the nominal application rate
(100%)
?? Programming the application rate (dual function
key)

4
B Summary of use
IMPORTANT
When moving the metering unit by more than 30 mm, rotate metering
unit to avoid crushing seeds !
When seeding in « small seed » position, the control box must also be
set on the « small seed »position!
Action Control Screen Result
Fand REF
-
Automatically goes to next screen
after 2 seconds
and
Metering unit moves to the required
opening
F
Automatically goes to next screen
after 2 seconds
or
or
Setting an opening position
Checking the open-
ing position
(task to carry out at
work begin, in case
of seed change, at
least once per day)
3 seconds
FStoring the opening
3 seconds
CAL
SP
Automatically goes to next screen
after 2 seconds
Setting « small seeds »
or
Setting « large seeds »
3 seconds
F
Storing the choice of seed type
or
Setting the metering opening ac-
cording to chart
F
Automatically goes to next screen
after 2 seconds
or
+
STEP % orREF
-
Entering weight in kg/ha
Calibration of the
seed type
Setting the opening
(flow control)
3 seconds
FStoring the collected weight
Programming the nominal application rate /ha !

5
Action Control Screen Result
Fand kg / ha
100%
Automatically goes to next screen
after 2 seconds
Automatically goes to next screen
after 2 seconds
or
+
STEP % ou REF
-
Setting the nominal application rate
(100 %) in kg/ha
Setting the nominal
application rate /ha
(100%)
3 seconds
F
Storing the nominal application rate
Fand +
STEP %
Automatically goes to next screen
after 2 seconds
or
Adjustment of the level to
5%, 10% or 15%
Setting the applica-
tion rate monitoring
level
3 seconds
FStoring the monitoring level
+
STEP % or REF
-
The application rate is adjusted of
the displayed level (max. ?60%)
The metering unit position is dis-
played for 2 seconds
alternately
The adjusted application rate and
the adjustment level are displayed
alternately.
Adjustment of the
application rate (in
%)
kg / ha
100%
alternately
Setting the nominal application rate

6
C System description
C 1 Electric power supply
The MDC control box is supplied by a 3 pin plug
(DIN 9680, IS
O 12369) connection onto the tractor
network
Pin number Wire colour Function
15 / 30 Brown + 12 Volt
31 Blue Mass
81 -Not used
1
2
3
15/30 31
82
C 2 Design
The MDC electronic monitoring system is com
posed
of a control box (1), a wiring harness (2) be
tween
the tractor and the machine, a sensor and a driving
motor.
The MDC control box is connected either by its 9-
pin
plug (3) in the cabin to the 9-pin plug (4) of the wir-
ing harness connector or on the 9-
pin plug (5) if
moved to the machine. The ele
ctric power supply is
made through plug (6).
The control box is protected by a fuse of 15 A (7).
Recommended distance of sensor (with regards
to the notched wheel metal stud)
Sensor Distance
From motor position 0,4 –0,8 mm
1
3
2
4
5
6
7

7
VENTA MDC connection plan

8
D Work and display settings
The following settings and displays are vital (bold) or can be made in view of the work to
carry out :
1) Setting the point of reference
2) Calibration of the opening (flow control)
3) Programming the nominal seed application rate (100%)
4) Adjusting the metering unit to the nominal seed application rate
5) Programming the seed application rate adjustment level
6) Distribution adjustment of the chosen seed application rate
7) Setting the null flow rate (in case of maintenance)
D 1 Setting the point of reference
Should their be a power cut during a motor manoeuvre or due to its removal, the point of
reference must be newly calibrated.
It must be checked at work begin, when changing the seed type or at least once a day!
Press key Fand key REF
-to recalibrate the point of reference:
The screen displays the theoretical point of reference: it must be
adjusted to an identical position corresponding to the current real
opening position of the metering unit.
+
STEP % or REF
-keys enable changing the metering unit opening position (for ex. : for an
easier reading of the graduation). This manoeuvre is not compulsory !
Press key F: the screen briefly displays . Now, modify with keys +
STEP % or
REF
-to obtain the required value.
Store this value by pressing Fkey for 3 seconds until the display
flashes briefly!
1) Metering unit position (ex. : 70)
1

9
D 2 Calibration of the opening (flow control)
Press for approx. 3 seconds key CAL
SP to carry out calibration for the flow control
(selection of the seed type, choice of opening for the flow control).
IMPORTANT
For seeding with the metering unit in « small seed » position
(rapeseed, clover, rye-grass,… i.e. with metering unit reduc-
tion slide engaged), the MDC must also be set on «small
seed » position if you do not want to risk damaging the me-
tering unit during work !
D 2.1 Setting the seed type
Use keys to select the seed type:
Small seed (clover, rapeseed, grass, etc.)
Large seed (wheat, barley, peas, horse beans, etc,)
Store this value by pressing Fkey for 3 seconds until the dis-
play flashes briefly!
The type of seeds memorized is briefly displayed on the screen:
Small seed (clover, rapeseed, grass, etc.)
Large seed (wheat, barley, peas, horse beans, etc,)