Operation & Maintenance Manual

MOBA
MECHANICAL GRADE & SLOPE
CONTROL SYSTEM
G 176 Plus - Grade Control
S 276 Plus - Slope Control
Parameter Settings
Manual Part No. 499992526011
(Form No. 24580)
 G 176 plus
Operating instructions
-english-
The text and graphics of this manual have been elaborated with the greatest possible care. However, we may not be held
liable for possible errors and failure effects.
Should you wish to make suggestions regarding the arrangement of this manual or point out possible errors, please
contact your local dealer. We will gladly take up any of your ingenious ideas and suggestions.

Some company and label names are subject to label-, patent- or trade-mark protection.

All rights reserved. This document must not be duplicated or transferred for any purpose whatsoever without MOBA’s
written consent, irrespective of the way or the means which are used.

Order-no.: 10-02-00536
Date: 12.2005

MOBA
Mobile Automation AG
Kapellenstr. 15
D-65555 Limburg
Internet: www.moba.de
 3
Index

1. General information .................................................................... 4

1.1 Introduction........................................................................... 4
1.2 Packaging and storage.......................................................... 5
1.3 Precautionary measures ....................................................... 6
2. Product description .................................................................... 9
3. System summary ...................................................................... 10
4. Mounting of the G 176 plus....................................................... 11
4.1 Attaching the connecting cable .......................................... 12
4.2 Valve interruption function ................................................. 13
4.3 Attaching the system components ..................................... 14
4.4 Methods of sensing ............................................................. 15
5. Operating and working examples ............................................. 16
5.1 Description of the G 176 plus ............................................. 16
5.2 The control elements .......................................................... 16
5.3 LED display ......................................................................... 17
5.4 Push button unit.................................................................. 18
5.5 Sensitivity settings ............................................................. 19
5.5.1 Sensitivity table ............................................................ 20
5.6 Working with the G 176 plus ............................................... 21
5.6.1 String line sensing ....................................................... 21
5.6.2 Ground sensing ............................................................ 22
6. Module functions ...................................................................... 23
7. Maintenance.............................................................................. 24
7.1 General information ............................................................ 24
7.2 Periodic maintenance.......................................................... 24
7.3 Cleaning of device............................................................... 24
8. Technical data .......................................................................... 25
9. Declaration of conformance ..................................................... 26
 4
1. General information

1.1 Introduction

This manual contains important information concerning the installation, initiation and
operation of the G 176 plus, as well as advice for maintenance and trouble shooting.
Furthermore, you will find a detailed description of all operating elements and their
functions.
A description of all interfaces and their configuration is enclosed for the purpose of
connection and trouble shooting.

Pictograms and symbols:

The following pictograms and symbols are used in this manual:

Residual risks and sources of danger in the event of improper handling

which place the life and limb of operating personnel at risk are marked by
a warning triangle with an exclamation mark. This also applies to potential
damage to equipment.

Notes which need to be observed are indicated by a hand symbol.

Particularly important notes are printed in bold type.

• Lists are marked by a black dot.

¾ Operating steps to be performed by operating personnel are indicated by an

arrow head.
 5
Subject to change (without notice):

We have taken trouble to keep the information in these operating instructions

correct and up to date. To maintain our technical leadership it may be necessary,
without notice, to make changes to the product or its operation which, in certain
circumstances, do not correspond to these instructions. In this case your MOBA
supplier can supply up to date operating instructions. We accept no liability for
disturbances, breakdowns or damages caused thereby.

1.2 Packaging and storage

In order to ensure adequate protection during transport, the products have been
carefully packed.
On receipt the goods and the packaging should be checked for damage.

In case of damage the equipment must not be operated!

Damaged cables or connectors are also a risk to safety and, likewise,
must not be used!

In this case, please contact your MOBA supplier.

If the equipment is not to be used directly after it is unpacked it must be

protected from dampness and dirt.
 6
1.3 Precautionary measures

Before mounting, servicing and operating the equipment please read

the operating instructions carefully and completely. If questions
arise, please contact your MOBA supplier.

Safety measures:
The safety measures recommended here correspond basically to the guidelines for
installation und commissioning of electrical systems. They can be used for all
applications in conjunction with MOBA equipment.

Mounting:
When mounting the equipment only original MOBA-cables may be used. The
connectors may not be disconnected from the cables because they are protected
against dampness; opening them will destroy the protection. Make sure that the
securing screws of all the connectors are tightened. Further mounting information
for the equipment and sensors can be taken from the enclosed data sheets or the
installation instructions.

Wiring:
The wiring must be carried out correctly and corresponding information given in
these instructions. All supply leads and connecting terminals must be sized for the
corresponding current. Further, all connections must be made in accordance with
valid VDE regulations or with valid national regulations.

Safety against disturbances:

This equipment has been designed for industrial use and has been tested
correspondingly. Nevertheless, microprocessor technology puts certain demands on
the installation. We would therefore like to point out the following things about an
installation that, if not taken into account, can lead later to disturbances during
operation:
 7
• Make sure that the polarity of the connections is correct;
• Supply voltages may not exceed, or fall short of, the given ranges;
• Protect the equipment with a suitable supply fuse;
• Use cables suitable for the currents and voltages;
• Make the cabling paths as short as possible (avoid loops);
• Separate control cables from power cables as far as possible;
• Suppress contactor and relays coils;
• The requirement for a disturbance-free operation is a good electrical connection
between the machine and the case/chassis of the separate components;
• Connect screened cables to earth at one end only (the equipment end);
• Do not supply other equipment directly from the supply terminals of this
equipment;
• Do not use unused terminals as connection points for other equipment;
• Remove all system components resp. disconnect their power supply before
welding;

Maximum Voltages:
Do not exceed the maximum allowed voltages. If not otherwise noted, the maximum
voltage between any two isolated circuits, or between one circuit and earth is limited
to the highest value of the corresponding input voltage or the corresponding supply
voltage. The connecting terminals or plug must be equipped with a fuse.

Fuses:
The equipment is fitted with electronic fuses for protection against crossed
connections, voltage spikes and short term over-voltages. The supply voltages given
in the technical data may not be exceeded.

Configuration:
The equipment can be configured by the user. When reconfiguring, the user is
obliged to do this only in accordance with the circumstances of the complete
system.
 8
Alarm device:
In complex systems, in which a malfunction could lead to danger to the operating
personnel or to the system, it is wise to employ an independent alarm device to
supervise the process. An independent device offers protection by announcing an
alarm and switching off the system. In many cases the use of an alarm in the
controller does not, because it is not independent of the control system, provide
adequate protection.

Areas endangered by explosion:

The equipment is not for use in areas endangered by explosion.

Clearance of faults:
Before starting to clear faults make sure that every voltage supply to the equipment
has been removed. Faulty equipment should be examined in an area suitably fitted
out for test purposes. Every attempt to correct a fault in equipment that is still
installed can be dangerous for personnel and for the system.

Ask for help:

For questions about the operation or about mounting please contact your MOBA
supplier.

If the above precautionary measures are not observed, this can lead to a
failure of the equipment, of the machine or even injury to personnel. Damage
or injury, which is traceable to non-observance of the precautionary measures
described above, is excluded from the manufacturer's guarantee.
 9
2. Product description

The G 176 plus controller is used for the automatic

levelling of a tool. The controller is designed for mobile
application and particularly for the use in rough
environment. Most of the time the unit is used for the
levelling on asphalt pavers therefore an asphalt paver is
used for explaining the main functions in this manual. The
G 176 plus is also designed for milling machines, concrete
pavers and other construction equipment.

The unit is mounted on the

machine and follows a reference
using a special sensing tool. A
change in height between the
machine and reference will
cause a rotation of the sensing
axis. The sensor determines the
angle of rotation and the change
in height is calculated. Proportional to this value the
controller adjusts the valves to correct the height.

You can add a Slope sensor S 276 plus to the levelling

system, if required.
 10
3. System summary

Component Description Article-No. Remark

Grade controller G 176 plus 04-15-00300

G 176 plus System

Grade controller with connecting cable-6m, 05-15-00300
sensing-arm, sensing-ski and sensing-tube

Case - Grade/Slope
for 2 Grade- and 1 Grade controller with 04-06-00030
equipment

Connection box NPN/PNP

to connect two NPN controller to an PNP 04-03-00081 with Vögele connector
machine

Sensing-arm 04-05-00070
incl. Counterweight

04-05-00080 8" ~ 20 cm
Sensing-tube
04-05-00090 16" ~ 40 cm

Sensing-ski 04-05-00100
incl. Bolt and cotter pin

10pol/7pol 90°
Coil cable, 04-02-00012
Controller/machine 6 m
 11
4. Mounting of the G 176 plus

The level controller G 176 plus can be mounted easily

and rapidly with simple tools. For this purpose a
fastening tube with a crank handle should be
Fastening tube with
mounted as an extension of the control unit (on the crank handle
asphalt paver at the tow arm close to the auger or at
the milling machine on the protection housing of the Locking screws

drum)
1. Push ON push button to set STANDBY.
mount boss
2. Loosen the locking screws of the fastening tube.
3. Insert the round mount boss that is on top of the
ON
STANDBY

controller's housing vertically into the fastening 10

+
9
8
7
L SLOPE R 6
5

tube.
4
3
2
1
-
SONIC GRADE SENSITIVITY
LASER

4. Turn the controller's housing so that the operator

can see the lamps (front panel of the device Mounting of the G 176 Plus
against the direction of travel).
5. Lock the controller's mount boss to the fastening
tube with the according locking screws.
 12
4.1 Attaching the connecting cable

Push the ON push button to set STANDBY. Connect the 7 pole socket of the
connecting cable to the 7 pole plug of the controller. Connect the 10 pole socket of
the connecting cable to the 10 pole device plug of the machine. About 70% of all
pavers are equipped with a 10 pole machine connector. Therefore here we only
handle this "standard connection". More connection types by request.

To the machine To the Controller

Attaching of the connecting cable

After supply voltage interruption all value and parameter settings are
saved anymore.
 13
4.2 Valve interruption function

In case of working safety the controller contains the special function “Input valve
interruption”. Therefore pin F of the 7 pin connector (Pin J at 10 pin cable connector)
provides a port which monitors the applied voltage. To use this function an extra switch has
to be installed at a meaningful place on the machine, the control stand for example.

“Input valve interruption” is active if + VCC or – VCC is applied. Immediately no outputs are
activated and the LED “ON push button” is flashing.

F
+ F
-

“Input valve interruption” is inactive if there is no specified electric potential applied that
means the switch is open. The controller works in the usual way described in this manual.

F
+ F
-
 14
4.3 Attaching the system components

The system has two different sensors for sensing the reference. The sensing tube is
used for sensing the string line. The sensing ski is used for sensing the ground.

Attaching the sensing tube to the sensor arm

1. Unscrew the nut at the end of the sensing tube.
2. Insert the end of the sensing tube into the fastening ring of the
sensor arm.
3. Lock the sensing tube with the nut.

Attaching the sensing ski to the sensor arm

1. Remove the locking pin from the pin of the sensing ski;
Remove the pin.
2. Insert the fastening ring of the sensor arm into the fastener of the ski.
3. Push the pin through the fastener of the ski and the fastening ring of the sensor
arm.
4. Lock the pin with the locking pin.

Attaching the sensor arm to the G 176 plus

1. Turn the flat part of the shaft towards the front of the
controller.
1. Loosen the locking screw of the sensor arm.
2. Push the sensor arm on the shaft.
3. Lock the sensor arm with the locking screw.
 15
4.4 Methods of sensing

Sensing of a string line (with sensing tube)

Set the counterweight of the sensor arm in such a way that the sensor arm presses
the sensing tube onto the reference. If the tension of the string line used a reference
is too low, it is possible to guide the sensing tube beneath the string line with light
pressure.

Sensing of a surface (with sensing ski)

Set the counterweight of the sensor arm in such way that the sensor arm presses
the sensing ski onto the reference.

ON
STANDBY

10

+
9
8
7
L SLOPE R 6
5
4
3
2
1
-
SONIC GRADE SENSITIVITY
LASER

String line

Ground
 16
5. Operating and working examples

5.1 Description of the G 176 plus

The controller has the capability to work with all kinds of construction machinery.
Two LED displays and 5 push buttons are ensuring the ease of operation. The main
working principal of the controller is the levelling process of a working tool (e.g.
screed on a paver) in accordance with a defined reference. The controller is
continuously sensing the reference. In case of a deviation between the reference
and working tool the controller will start automatically steering the valves until the
deviation is eliminated. Depending on the size of the deviation the controller is using
variable output signals. Short output signals for small deviations, longer signals for
bigger deviations. The result is a fast working speed with high accuracy.

5.2 The control elements

ON LED display
ON push button STANDBY

10

LED scala
+
9
8

L SLOPE R
7
6
+ push button
5
4
3
2
1
- - push button
SONIC GRADE SENSITIVITY
LASER

Left selection push button

Right selection push button

 17
5.3 LED display

The LEDs are used to display the valve output actions.

Outputs
LED- display Deviation
(If activated)

Output UP
Big control deviation
is constantly on
Arrow constanly on

Medium to small control Output UP is pulsing

deviation with variable pulse with
Arrow flashes

No control deviation No outout activated

Center on

Output DOWN is pulsing

Medium to small control
deviation with variable pulse
with
Arrow flashes

Output Down
Big control deviation
is constantly on
Arrow constanly on

If control window function is activated:

Only in automatic mode.

Out of control window No output activated

All LEDs flashing

 18
5.4 Push button unit

For the operation of the G 176 plus five push buttons are available. They facilitate
simple operation.

ON push button
LED ON = automatic mode
This button is used to
ON LED OFF = manual mode
STANDBY change between ON
LED flashing = external valve Interruption
(automatic) and
STANDBY (manual)

+ push button
+ Increase sensitivity.

- push button
- Decrease sensitivity.

left/ right selection control push button

At standard G 176 plus without function.
LED “Grade” is on.
 19

5.5 Sensitivity settings

The LED scale shows the current chosen sensitivity.

The adjustment fort he sensitivity is reaching from 1 (low

sensitivity) to 10 (high sensitivity). Sensitivity is a setting
value which combines the governor settings of "death band"
and "pulsing range".
In case of non smooth operation while the controller is in
automatic mode you may have to change the setting value for
the sensitivity. If the controller is working too slow you have
to increase the sensitivity, if it's working too fast you have to
decrease the value.

+ -

Press + or – push button The LED show the

to change the sensitivity. sensitivity which is
saved now.
 20
5.5.1 Sensitivity table

The following table provides relations between sensitivity and dead band and pulse
range.

Sensitivity Deadband Pulse range

01 +/- 4,00 mm 18,0 mm
02 +/- 3,40 mm 16,0 mm
03 +/- 3,00 mm 14,0 mm
04 +/- 2,40 mm 12,0 mm
05 +/- 2,00 mm 10,0 mm
06 +/- 1,40 mm 8,0 mm
07 +/- 1.00 mm 6,0 mm
08 +/- 0.8 mm 5,0 mm
09 +/- 0,6 mm 4,0 mm
10 +/- 0,4 mm 3,0 mm

The denoted values in this table can deviate from device to device marginally.
 21
5.6 Working with the G 176 plus

5.6.1 String line sensing

1 2 3 4
ON
STANDBY

10

+
9
8
7
L SLOPE R 6
5
4
3
2
1
-
SONIC GRADE SENSITIVITY

FWD
LASER

ON
STANDBY
Seil
FWD

ON
STANDBY

10
9

L SLOPE R
8
7
6
5
+
-
4
3
2
1
SONIC GRADE SENSITIVI TY
LASE R

Press the "ON push For zero setting, bring After the height of the The sensing tube must
button" to switch over the tool into working controller with the exert a slight pressure
to manual mode. The position. adjustment leveller onto the string line.
function LED is off. until the working set The pressure can be
point is reached. The adjusted with the
LED display confirms counterweight.
the zero setting with
illuminated LEDs
centred in the LED
cross.

5 6 7 8

ON
ON STANDBY
STANDBY

ON
STANDBY

10

+
9
8
7
L SLOPE R 6
5
4
3
2
1
-
SO NIC GRADE SENSI TIVI TY
LASER

Press the "ON push The controller keeps Use the adjustment You can switch back
button" to switch over the tool at the adjusted leveller for altering to manual mode
to automatic mode. value. the set point in anytime with the "ON
The function LED is automatic mode. push button". The
on. The valve outputs ATTENTION! Each automatic control of
are active. adjustment changes the valves will then be
the weight force of switched off. The
the sensing tube. function LED is off.
 22
5.6.2 Ground sensing

1 2 3 4

FWD
ON
STANDBY
Referenzfläche

ON
STANDBY

10
9

L SLOPE R
8
7
6
5
+
-
4
3
2
1
SONIC GRADE SENSITIVI TY
LASE R

Press the "ON push For zero setting, bring After the height of the The sensing ski has to

button" to switch over the tool into working controller with the exert a slight pressure

to manual mode. The position. adjustment leveller onto the ground. The

function LED is off. until the working set pressure can be

point is reached. The adjusted with the
LED display confirms counterweight.
the zero setting with
illuminated LEDs
centred in the LED
cross.

5 6 7 8

ON ON
STANDBY STANDBY

ON
STAN DBY

10
9

L SLOPE R
8
7
6
5
+
SON IC
4
3
2
1
-
GRADE SENSITIVI TY
LASER

Press the "ON push The controller keeps Use the adjustment You can switch back
button" to switch over the tool at the adjusted leveller for altering to manual mode
to automatic mode. value. the set point in anytime with the "ON
The function LED is automatic mode. push button". The
on. The valve outputs ATTENTION! Each automatic control of
are active. adjustment changes the valves will then be
the weight force of switched off. The
the sensing ski. function LED is off.
 23
6. Module functions

1 2

5 sec. 5 sec.
To choose the "Grade" or the
"Slope" mode after changing a
module, proceed the following
description. Change to "Grade" mode. Change to "Slope" mode.
Hold right selection push Hold left selection push
button 5 sec. until the button 5 sec. until the
LED is on. LED is on.
 24
7. Maintenance

7.1 General information

The controller is designed for high working safety so that the maintenance needs a minimum
of procedures only. The electronic components are mounted in a solid case in order to avoid
any mechanical damage.

7.2 Periodic maintenance

The power supply cables should also be checked regularly in order to detect any damage
and dirt.

Note:
Keep the thread of the plug-connections and of the cable connectors free of any dirt, grease,
asphalt or concrete in order to avoid a bad contact. Remove any asphalt or concrete
sticking to the sensor arm by means of an appropriate agent and oil the bearing afterwards.

7.3 Cleaning of device

Switch off the digital controller

¾ apply a normal washing-up detergent to a soft, lintfree piece of cloth

¾ clean appliance surfaces without pressure
¾ remove the detergent from the appliances with a clean piece of cloth
 25
8. Technical data

Abmessungen (Dimensions):

ON
STANDBY

10

+
9
8
7
L SLOPE R 6
5
4
3
2
1
-
SONIC GRADE SENSITIVITY
LASER

Technische Daten (Technical data): Pinbelegung (Pin connection):

Betriebsspannung (voltage range): 7pol. Gerätestecker; Schraubverbindung
11 ... 30 V (DC) (7pin connector; screwed connection)
A =
+ Betriebsspannung (supply voltage)
Stromaufnahme (current consumption):
B =
Ausgang “Senken” (output “lower”)
< 60 mA ohne Ventile (without valves)
C =
- Betriebsspannung (supply voltage)
D =
Ausgang “Heben” (output „raise“)
Erfassungsbereich (measuring range):
E =
n.c.
+/- 70 mm; gemessen am Tastarm (measured at
F =
Eingang „extern Hand“ (input „valve
sensing arm)
interruption“)
G = n.c.
Erreichbare Genauigkeit (obtainable accuracy):
+/- 0,5 mm; am Tastarm (at sensing arm)

Ausgänge, wählbar (outputs, selectable):

ON/OFF; NPN o. PNP, Imax = 3 Amp.
Freq. = 3 Hz., MinPuls = 10ms ....190ms,
Servo, Imax. = 3 Amp.

Arbeitstemperaturbereich (ambient temperature range):

-20 ... +80 °C

Lagertemperaturbereich (storage temperature range):

-25 ... +80 °C

Schutzart (enclosure protection):

IP 54
Bemerkung (Remark):

Gewicht (weight): Zubehör:

ca. 1,9 kg Tastarm (sensing arm): 04-05-00070
Tastrohr (sensing tube):04-05-00080
Tastski (sensing ski): 04-05-00100
 26
9. Declaration of conformance
 S 276 plus
Operating instructions
-english-
The text and graphics of this manual have been elaborated with the greatest possible care. However, we may not be held
liable for possible errors and failure effects.
Should you wish to make suggestions regarding the arrangement of this manual or point out possible errors, please
contact your local dealer. We will gladly take up any of your ingenious ideas and suggestions.

Some company and label names are subject to label-, patent- or trade-mark protection.

All rights reserved. This document must not be duplicated or transferred for any purpose whatsoever without MOBA’s
written consent, irrespective of the way or the means which are used.

Order-no.: 10-02-00581
Date: 12.2005

MOBA
Mobile Automation AG
Kapellenstr. 15
D-65555 Limburg
Internet: www.moba.de
 3
Index

1. General information .................................................................... 4

1.1 Introduction........................................................................... 4
1.2 Packaging and storage.......................................................... 5
1.3 Precautionary measures ....................................................... 6
2. Product description .................................................................... 9
3. System summary ...................................................................... 10
4. Mounting of the S 276 plus ....................................................... 11
4.1 Attaching the connecting cable .......................................... 12
4.2 Valve interruption function ................................................. 13
5. Operating and working examples ............................................. 14
5.1 Description of the S 276 plus .............................................. 14
5.2 The control elements of the S 276 plus .............................. 14
5.2.1 LED display................................................................... 15
5.2.2 Push button unit ........................................................... 16
5.2.3 LED scale ...................................................................... 17
5.2.4 Sensitivity table ............................................................ 18
5.3 The Control Elements of the Handset ................................. 19
5.3.1 LC-Display .................................................................... 20
5.3.2 Push buttons ................................................................ 21
5.4 Working with the S 276 plus ............................................... 22
5.4.1 Sensitivity settings ....................................................... 22
5.4.2 Setting up the set point ................................................ 22
5.4.3 Working with the S 276 plus ......................................... 24
6. Module functions ...................................................................... 25
7. Maintenance.............................................................................. 26
7.1 General information ............................................................ 26
7.2 Periodic maintenance.......................................................... 26
7.3 How to clean the appliance ................................................. 26
7.4 Trouble shooting ................................................................. 27
8. Technical data .......................................................................... 28
9. Declaration of conformance ..................................................... 29
 4
1. General information

1.1 Introduction

This manual contains important information concerning the installation, initiation and
operation of the G 176 plus, as well as advice for maintenance and trouble shooting.
Furthermore, you will find a detailed description of all operating elements and their
functions.
A description of all interfaces and their configuration is enclosed for the purpose of
connection and trouble shooting.

Pictograms and symbols:

The following pictograms and symbols are used in this manual:

Residual risks and sources of danger in the event of improper handling

which place the life and limb of operating personnel at risk are marked by
a warning triangle with an exclamation mark. This also applies to potential
damage to equipment.

Notes which need to be observed are indicated by a hand symbol.

Particularly important notes are printed in bold type.

• Lists are marked by a black dot.

¾ Operating steps to be performed by operating personnel are indicated by an

arrow head.
 5
Subject to change (without notice):

We have taken trouble to keep the information in these operating instructions

correct and up to date. To maintain our technical leadership it may be necessary,
without notice, to make changes to the product or its operation which, in certain
circumstances, do not correspond to these instructions. In this case your MOBA
supplier can supply up to date operating instructions. We accept no liability for
disturbances, breakdowns or damages caused thereby.

1.2 Packaging and storage

In order to ensure adequate protection during transport, the products have been
carefully packed.
On receipt the goods and the packaging should be checked for damage.

In case of damage the equipment must not be operated!

Damaged cables or connectors are also a risk to safety and, likewise,
must not be used!

In this case, please contact your MOBA supplier.

If the equipment is not to be used directly after it is unpacked it must be

protected from dampness and dirt.
 6
1.3 Precautionary measures

Before mounting, servicing and operating the equipment please read

the operating instructions carefully and completely. If questions
arise, please contact your MOBA supplier.

Safety measures:
The safety measures recommended here correspond basically to the guidelines for
installation und commissioning of electrical systems. They can be used for all
applications in conjunction with MOBA equipment.

Mounting:
When mounting the equipment only original MOBA-cables may be used. The
connectors may not be disconnected from the cables because they are protected
against dampness; opening them will destroy the protection. Make sure that the
securing screws of all the connectors are tightened. Further mounting information
for the equipment and sensors can be taken from the enclosed data sheets or the
installation instructions.

Wiring:
The wiring must be carried out correctly and corresponding information given in
these instructions. All supply leads and connecting terminals must be sized for the
corresponding current. Further, all connections must be made in accordance with
valid VDE regulations or with valid national regulations.

Safety against disturbances:

This equipment has been designed for industrial use and has been tested
correspondingly. Nevertheless, microprocessor technology puts certain demands on
the installation. We would therefore like to point out the following things about an
installation that, if not taken into account, can lead later to disturbances during
operation:
 7
• Make sure that the polarity of the connections is correct;
• Supply voltages may not exceed, or fall short of, the given ranges;
• Protect the equipment with a suitable supply fuse;
• Use cables suitable for the currents and voltages;
• Make the cabling paths as short as possible (avoid loops);
• Separate control cables from power cables as far as possible;
• Suppress contactor and relays coils;
• The requirement for a disturbance-free operation is a good electrical connection
between the machine and the case/chassis of the separate components;
• Connect screened cables to earth at one end only (the equipment end);
• Do not supply other equipment directly from the supply terminals of this
equipment;
• Do not use unused terminals as connection points for other equipment;
• Remove all system components resp. disconnect their power supply before
welding;

Maximum Voltages:
Do not exceed the maximum allowed voltages. If not otherwise noted the maximum
voltage between any two isolated circuits, or between one circuit and earth, is
limited to the highest value of the corresponding input voltage or the corresponding
supply voltage. The connecting terminals or plug must be equipped with a fuse.

Fuses:
The equipment is fitted with electronic fuses for protection against crossed
connections, voltage spikes and short term over-voltages. The supply voltages given
in the technical data may not be exceeded.

Configuration:
The equipment can be configured by the user. When reconfiguring, the user is
obliged to do this only in accordance with the circumstances of the complete
system.
 8
Alarm device:
In complex systems, in which a malfunction could lead to danger to the operating
personnel or to the system, it is wise to employ an independent alarm device to
supervise the process. An independent device offers protection by announcing an
alarm and switching off the system. In many cases the use of an alarm in the
controller does not, because it is not independent of the control system, provide
adequate protection.

Areas endangered by explosion:

The equipment is not for use in areas endangered by explosion.

Clearance of faults:
Before starting to clear faults make sure that every voltage supply to the equipment
has been removed. Faulty equipment should be examined in an area suitably fitted
out for test purposes. Every attempt to correct a fault in equipment that is still
installed can be dangerous for personnel and for the system.

Ask for help:

For questions about the operation or about mounting please contact your MOBA
supplier.

If the above precautionary measures are not observed, this can lead to a
failure of the equipment, of the machine or even injury to personnel. Damage
or injury, which is traceable to non-observance of the precautionary measures
described above, is excluded from the manufacturer's guarantee.
 9
2. Product description

The S 276 plus controller is used for the

automatic levelling of a tool. The controller
is designed for mobile application and
particularly for the use in rough
environment.
Most of the time the unit is used for the
levelling on asphalt pavers therefore an
asphalt paver is used for explaining the
main functions in this manual. The S 276 plus is also designed for milling machines,
concrete pavers and other construction equipment.

The cross-slope controller has to be mounted at a part of the machine that carries
out all slope changes in the same way as the tool does. After the set point is set the
S 276 plus detects any cross-slope changes and determines the offset. The
Controller steers the connected valves proportionally until the difference is
corrected.

You can add a Grade sensor G 176 plus to the levelling system, if
required.
 10
3. System summary

Component Description Article-No. Remark

Slope controller S 276 plus 04-15-10300

S 276 plus system 05-15-10300

Slope controller with connecting cable-6m

S 276 plus Basic unit 04-15-10250

Digital Handset 04-15-11010

for S 276

Case - Grade/Slope
for 2 Grade- and 1Grade controller with 04-06-00030
equipment

Connection box NPN/PNP with Vögele

to connect two NPN controller to an PNP 04-03-00081 connector
machine

10pol/7pol 90°
Coil cable 04-02-00012
Controller/machine 6 m
 11
4. Mounting of the S 276 plus

The cross-slope Controller has to be mounted at a part of the machine that carries
out all slope changes in the same way as the tool does. In case of the paver, we
recommend the cross linkage between the tow arms respectively the screed.
The connectors must be freely accessible, so that the interconnecting cable can be
easily plugged in. For mounting purposes, four fixing holes are in the mounting plate
of the controller. To decrease the loading stress, shock absorbers should be
installed between the fixing plate and the chassis. The shock absorbers should be
hard enough to avoid natural oscillation.
For best results check with a digital, highly precise water level during mounting.
Please observe the direction of mounting. Mounting plates of S 276 plus and S 276
M are identical.
FWD

ON
ST AND BY

10
9

L SL OP E R
8
7
6
5
+
-
4
3
2
1
SO NI C
G RA DE SE NS ITI VI TY
LA SER
 12
4.1 Attaching the connecting cable

Push the "ON push button" to set STANDBY. Connect the 7 pole socket of the
connecting cable to the 7 pole plug of the controller. Connect the 10 pole socket of
the connecting cable to the 10 pole device plug of the machine on the side that shall
be controlled. About 70% of all pavers are equipped with a 10 pole machine
connector. Therefore only this "standard connection" is described. Further
connection types upon request.

To the maschine To the controller ON

STANDBY

10

+
9
8
7
L SLOPE R 6
5

-
4
3
2
1
SONIC GRADE SENSITIVITY
LASER

Attaching of the connecting cable

After supply voltage interruption all value and parameter settings are
saved anymore.
 13
4.2 Valve interruption function

In case of working safety the controller contains the special function “Input valve
interruption”. Therefore pin F of the 7 pin connector (Pin J at 10 pin cable connector)
provides a port which monitors the applied voltage. To use this function an extra switch has
to be installed at a meaningful place on the machine, the control stand for example.

“Input valve interruption” is active if + VCC or – VCC is applied. Immediately no outputs are
activated and the LED “ON push button” is flashing.

F
+ F
-

“Input valve interruption” is inactive if there is no specified electric potential applied that
means the switch is open. The controller works in the usual way described in this manual.

F
+ F
-
 14
5. Operating and working examples

5.1 Description of the S 276 plus

The controller has the capability to work with all kind of construction machinery.
Two LED displays and five push buttons are ensuring the ease of operation.
The handset with its 3½- digit liquid crystal display and four push buttons ease
working with the S 276 plus.
The main working principal of the controller is the levelling process of a working tool
(e.g. screed on a paver) in accordance with a defined reference. In case of a
deviation between the reference and working tool the controller will start
automatically steering the valves until the deviation is eliminated. Depending on the
size of the deviation the controller is using variable output signals. Short output
signals for small deviations, longer signals for bigger deviations. The result is a fast
working speed with high accuracy.

5.2 The control elements of the S 276 plus

ON
STANDBY LED display
ON push button
10

+
9
LED scale 8 + push button
7
L SLOPE R 6
5

left selection push button

right selection push button
4
3
2
1
- - push button
SONIC GRADE SENSITIVITY
LASER
 15
5.2.1 LED display

The LEDs are used to display the valve output actions.

LED- display Deviation Outputs

Output UP
Big control deviation
is constantly on
Arrow constanly on

Medium to small control Output UP is pulsing

deviation with variable pulse with
Arrow flashes

No control deviation No outout activated

Center on

Output DOWN is pulsing

Medium to small control
deviation with variable pulse
with
Arrow flashes

Output Down
Big control deviation
is constantly on
Arrow constanly on
 16
5.2.2 Push button unit

For the operation of the S 276 plus five push buttons are available. They facilitate
simple operation.

ON push button
LED ON = automatic mode
This button is used to
ON LED OFF = manual mode
STANDBY change between ON
LED flashing = external valve Interruption
(automatic) and
STANDBY (manual)

+ push button
+ Increase sensitivity.

- push button
- Decrease sensitivity.

left/ right selection

Left push button = Control of left side.
(Connected to the left side of the machine).

Right push button = Control of the right side.

(Connected to the right side of the machine).
LED “Grade” is on.
 17
5.2.3 LED scale

The LED scale shows the currently chosen sensitivity.

The adjustment for the sensitivity is reaching from 1 (low

sensitivity) to 10 (high sensitivity). Sensitivity is a setting
value which combines the control parameters of "death band"
and "pulse range".
In case of non smooth operation while the controller is in
automatic mode you may have to change the setting value for
the sensitivity. If the controller is working too slow you have
to increase the sensitivity, if it's working too fast you have to
decrease the value.

+ -

Press + or – push button The LED show the

to change the sensitivity. sensitivity which is
saved now.
 18
5.2.4 Sensitivity table

The following table provides relations between sensitivity and dead band and pulse
range.

Sensitivity Deadband (%) Pulserange (%)

01 0.40 +/- 1.60
02 0.30 +/- 1.40
03 0.20 +/- 1.20
04 0.14 +/- 1.00
05 0.10 +/- 0.80
06 0.06 +/- 0.60
07 0.04 +/- 0.50
08 0.02 +/- 0.40
09 0.02 +/- 0.30
10 0.00 +/- 0.20

The denoted values in this table can deviate from device to device marginally.
 19
5.3 The Control Elements of the Handset

LC- display

UP push button Fast push button

DOWN push button Reset push button

 20
5.3.1 LC-Display

The 3½- digit liquid crystal display is, because of its integrated illumination well
readable. The display symbols have the following significance:

Slope to the right (bar dropping down to the right).

Slope to the left (bar dropping down to the left).

Zero point (Slope to the right/left constantly on).

UP/Down arrow constantly on during zero setting.

 21
5.3.2 Push buttons

For the operation of the Handset four push buttons are available. They ensure
simple operation

UP/DOWN push button

Setting of cross-slope or displayed values.

Fast push button

Increase the speed of the adjustment procedure in combination
with the UP/DOWN button

Reset push button

Adjust displayed values without changing the set point in addition
with "UP/DOWN push button".
 22
5.4 Working with the S 276 plus

5.4.1 Sensitivity settings

Increase the sensitivity while the machine is running and control in Automatic Mode.
When Hydraulics starts swinging, decrease sensitivity until the swinging stops.
When being used for the first time, readjustment might be necessary, as vibrating,
temperatures etc. have an impact on the control loop. After this readjustment,
usually no further setting procedure has to be performed.

5.4.2 Setting up the set point

The first time setting up the set point has to be done during the
implementation of the S 276 plus. With this procedure, the indicated value
of the digital controller will be adjusted to the actual cross-slope of the tool
to be controlled.

In the following example, we will describe how to set the numerical value of an
adjusted slope set point to the measured value of the working result while working in
automatic mode.
 23
Procedure: Adjustment of set point while working in automatic mode

1 2 3 4
2,30

ON
STANDBY

The system is in au- Measure the working Hold "Reset push Hold "Reset push
tomatic mode (func- result with a digital, button" till "UP/DOWN button" and press
tion lamp "ON" is on). highly precise level. arrows" are on "UP/DOWN push but-
In this example the Let's assume that the constantly. tons" to set the set
control works with a actualy measured point to 2.30. After
set point of 2,45 %. value is only 2,30%. that release "Reset
push button".

If necessary repeat step 2 to 4 until the adjusted set point and the produced cross-
slope are identical.

For best working results the measured value has to be checked and
necessary readjusted in periodical intervals.

Generally the procedure for setting up the measured value has to be

repeated if the S 276 plus was exchanged, the mounting position
changed or any mechanical changes were made at the tool or its
fastening (e.g. mechanical adjustment of the screed's angle of attack
at the paver).
 24
5.4.3 Working with the S 276 plus

It is assumed that the controller was mounted, the cables were connected and the
setting of the measured value was done.

Procedure: Controlling with the S 276 plus controller

1 2 3 4
ON
ST AND BY

10
9

L SL OP E R 68
57
4
+
3
2
1
SO NI C
G RA DE SE NS ITIVI TY
LA SER

ON 2,50%
STANDBY
ON
STANDBY

Press the "ON push Proceed the tool (start Use Handset to adjust Press the "ON push
button" to switch over position manual) into the set point (2,50 %). button" to switch over
to manual mode. The working position. In ideal case the to automatic mode.
function LED is off. LEDs centred in the The function LED
LED cross. "ON" is on. The
controller keeps the
(here: 2,50 %,
right Slope) tool at the adjusted
value.

6 6a 6b 7

2,50%
+

Measure the working After desired value is If desired value is To adjust the value
result with a digital, reached, the usual not reached it can be displayed on the
high precise level. work can be resumed. changed stepwise handset to the cross
with UP/DOWN slope, use the R-
buttons. button and the
UP/DOWN buttons.
 25

ON
Sensitivity setting
STANDBY
If the control in automatic mode is too sluggish or unstable
At any time you can the sensitivity setting should be changed accordingly. The
switch back to the
procedure is described in section 6.4.1 of these operating
STANDBY mode. The
instructions.
automatic drive of the
valves will then be
switched off.

6. Module functions

1 2

5 sec. 5 sec.
To choose the "Grade" or the
"Slope" mode after changing a
module, proceed the following
description. Change to "Grade" mode. Change to "Slope" mode.
Hold right selection push Hold left selection push
button 5 sec. until the button 5 sec. until the
LED is on. LED is on.
 26
7. Maintenance

7.1 General information

The level controller has been designed for high working safety so that the maintenance
needs a minimum of procedures only. The electronic components are mounted in a solid
case in order to avoid any mechanical damage.

7.2 Periodic maintenance

The power supply cables should also be checked regularly in order to detect any damage
and dirt.

Note:

Keep the thread of the plug-connections and of the cable connectors free of any dirt, grease,
asphalt or concrete in order to avoid a bad contact. Remove any asphalt or concrete
sticking to the sensor arm by means of an appropriate agent and oil the bearing afterwards.

7.3 How to clean the appliance

Switch off the digital controller

¾ apply a normal washing-up detergent to a soft, lintfree piece of cloth

¾ clean appliance surfaces without pressure
¾ remove the detergent from the appliances with a clean piece of cloth
 27
7.4 Trouble shooting

In spite of extensive protective circuits it is not completely impossible that the func-
tions of the Handset can be affected by the appearance of external disturbances
(spikes of the generator, induction voltage etc.). However a Hardware-reset can
often eliminate malfunctions. If there is a malfunction act like this:

1. Disconnect the power supply of the Slope Controller.

2. Press the UP- and DOWN-key of the Handset simultaneous and hold them
pressed while restoring the power supply.

By this simple process the Handset will be initialized anew. If the malfunctions have
not been eliminated yet please repeat the procedure once more.
 28
8. Technical data

Abmessungen (Dimensions):
150 70
118
100

ON

120
STANDBY

100
79
10
137

+
9
8
7
L SLOPE R 6
5
4
3
2
1
- 8,5

SONIC GRADE SENSITIVITY

LASER
225
250
10

Technische Daten (Technical data): Pinbelegung (Pin connection):

Betriebsspannung (voltage range): 7pol. Gerätestecker; Schraubverbindung

11 ... 30 V (DC) (7pin connector; screwed connection)
A =
+ Betriebsspannung (supply voltage)
Stromaufnahme (current consumption): B =
Ausgang “Senken” (output “lower”)
< 100 mA ohne Ventile (without valves) C =
- Betriebsspannung (supply voltage)
D =
Ausgang “Heben” (output „raise“)
Erfassungsbereich (measuring range): E =
n.c.
+/- 10 % F =
Eingang „extern Hand“ (input „valve
interruption“).
Ausgänge, wählbar (outputs, selectable): G = n.c.
ON/OFF; NPN o. PNP, Imax = 3 Amp.
Freq. = 3 Hz., MinPuls = 10ms ....190ms,
Servo, Imax. = 3 Amp.
FA
C A
E G B
Arbeitstemperaturbereich (ambient temperature range): B
D C
-20 ... +70 °C

Lagertemperaturbereich (storage temperature

range):
-25 ... +80 °C 3pol. Gerätestecker; Schraubverbindung
(3-pin plug; screwed connection)
Schutzart (enclosure protection):
A = +8V
IP 54
B = Sollwert (setpoint)
C = Gnd
Gewicht (weight):
ca. 2,9 kg

Bemerkung (Remark):
Module für Höhen- und Neigungsregelung
untereinander austauschbar;
(control modules for grade and slope controlling
interchangeable);
 29
9. Declaration of conformance
G 176 plus/S 276 plus/G176 Sonic plus
Parameter settings
-english-
The text and graphics of this manual have been elaborated with the greatest possible care. However, we may not be held
liable for possible errors and failure effects.
Should you wish to make suggestions regarding the arrangement of this manual or point out possible errors, please
contact your local dealer. We will gladly take up any of your ingenious ideas and suggestions.

Some company and label names are subject to label-, patent- or trade-mark protection.

All rights reserved. This document must not be duplicated or transferred for any purpose whatsoever without MOBA’s
written consent, irrespective of the way or the means which are used.

Order-no.: 10-02-00539
Date: 12.2005

MOBA
Mobile Automation AG
Kapellenstr. 15
D-65555 Limburg
Internet: www.moba.de
 3
Index

1. General information .................................................................... 4

2. Call up of the operator menu ...................................................... 5
3. Operator menu ............................................................................ 6
3.1 Hydraulic mode ..................................................................... 7
3.2 MIN pulse............................................................................... 8
3.3 Control window ..................................................................... 9
3.4 Default settings ................................................................... 11
4. Short description ...................................................................... 12
4.1 Structure diagram ............................................................... 12
4.2 Description of parameters .................................................. 13
 4
1. General information

All parameters have been factory preset to default values at MOBA. With these
defaults a sufficient operation of the most usual types of machines is ensured.
Nevertheless it is recommended to optimize each system by adjusting its
parameters depending on the specific conditions of the machine.

The parameter settings can be done in manual mode as well as in automatic mode.
So the user has got the possibility to optimize his system while working.
 5
2. Call up of the operator menu

The operator menu can be called up from the working mode. That means, it is not
relevant if the controller is in manual mode or automatic mode. If the call up is done
out of the automatic mode the automatic valve steering from the controller is
switched off during this time.

Invocation of the operator menu

Press both "selection push buttons"

simultaneously (2 sec) until their
LEDs are on.

Then within 3 sec. press the

1
following key combination (one
after the other).
2
1) left selection push button
2) right selection push button
Both LEDs start flashing.

The operator menu can be left any

time by pressing the "ON" push
button. If no key is pressed the
controller automatically switches
ON
STANDBY back to the working menu after max.
60 seconds. Maximally one LED is
on.
 6
3. Operator menu

Operator menu

Hydraulic mode

The first section of the operator

menu is the "Hydraulic mode".
MIN pulse Press the "left/right selection
push button" to switch through
the parameters.

Control window

By pressing the "+/-" push

button" parameter values can be
+ changed or function modes
switched over. The setting you
- selected is shown by the LED
scale.
 7
3.1 Hydraulic mode

The controller has the capability to work with all kind of construction machinery.
The user has the opportunity to adapt the outputs to the machine conditions.

To visualize this section of the

HYDRAULIC MODE operating menu "UP/DOWN Arrow" in
the LED display are simultaneously on.

Press "+/- push button" to set the

"function mode".

+ 1. ON/OFF, NPN, 3 Hz (Default)

2. ON/OFF, PNP 3 Hz
3. ON/OFF, SPS 3 Hz

- The chosen "function mode"

displayed by a assigned LED in the LED
is

NPN PNP SPS

scale.
 8
3.2 MIN pulse

Minimum pulse defines the smallest time gap and therefore minimum velocity of the
cylinders.

To visualize this section of the

operating menu the "UP Arrow" and
the "DOWN Arrow" in the LED
MIN PULSE display is flashing alternately. At the
same time occurs an alternating
steering of the controller outputs with
the set pulse ranges.

Press the "+/- push button" set the

"MIN pulse".
1) 10 ms
2) 20 ms
3) 30 ms
4) 40 ms (Default)
.
.
.

+ 10ms 20ms 40ms

10) 100 ms
11) 110 ms ...
.

- .
.
19) 190 ms
The set "MIN pulse" is visualized by
a LED combination in the LED scale.
Above 100 ms, indicated by 10, the
values are displayed as a
100ms 110ms 190ms
combination of two LEDs limited to
190 ms.
 9
3.3 Control window

This section is for the G 176 plus and the G 176 Sonic plus only.
There are different matters for rapid changes of the controller's measuring value.
Reasons are inadvertence of the operators as well as technical mistakes (e.g. torn
string line). To avoid these unwanted measuring mistakes with its extreme control
actions the set point can be bordered with a so called control window.

If a control deviation appears that is bigger than a set range this control deviation
will be recognised as a fault and the valve steering will be switched off.
10

To visualize this section of the

CONTROL WINDOW operating menu the LED center

in the LED display is flashing.

Press "+/- push button" to

switch between default setting
inactive (no LED in the LED
+ scale on) and active (LED "6" in
LED scale is on, that means the
- set point is bordered with a
fixed control window about
Control window Control window
aktive, inaktive 6 cm = +/- 3 cm )
+/- 3cm

If your controller has a control

window and the value out of its
range in operating mode all
LEDs of the LED display are
flashing. The valve outputs will
be switched off. While working
outside of the
control window in the control window again the
valve outputs will be switched
on.
 11
3.4 Default settings

This default settings are factory preset values at the house of MOBA.

Disconnect the controller from

DEFAULT SETTINGS connecting cable to set back
default settings.

+ ON
STANDBY

10
Press "+/- push buttons"
9
simultaneously and hold them.
L SLOPE R
8
7
6
5
+
-
4
3
2
1
SONIC GRADE SENSITIVITY
LASER

Connect the Controller to the

connector cable to supply the
controller with operating voltage
Now unhand the "+/- push
button". All settings are set to
default. The Controller is ready to
operate.
12
4. Short description

4.1 Structure diagram

Operator menu

K T 60 sec

Parameter menu
Key combination: K

1.) Buttons: simultaneously

until

2.) Buttons: one after one

until Hydraulic mode
NPN
(PNP ,NPN, SPS)

MIN pulse
40 ms
(10 ms ...190 ms)

Control window
inactive
(inactive, active)
 13
4.2 Description of parameters

Parameter Default Range Description

Hydraulic mode ON/OFF NPN, 3Hz ON/OFF, NPN, 3 Hz The G 176 plus maybe used on
ON/OFF, PNP 3 Hz different machines. The user has
ON/OFF, SPS 3 Hz the opportunity adapt control
valued to these different machines

MIN pulse 40 ms 10 ms The min pulse defines the shortest

20 ms time and smallest velocity of the
30 ms cylinders
40 ms
.
.
.
100 ms
110 ms ....
.
.
.
190 ms

Control window inactive active I offset is bigger than control

inactive window a failure is assumed and
the valves are switched off. For the
G 176 plus only.

Default settings This default settings are factory

preset values at the house of
MOBA.