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Analog

Ref. No. VOE21A1004952 CPN 80858814 Printed in Sweden 2008-05 Volvo, Hameln

English CST

California Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

California Proposition 65 Warning Battery posts, terminals and other related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and other reproductive harm. Wash hands after handling.

VOE21A1004952h.pdf

Index 1. 1.1 1.2 1.3

2. 2.1 2.2 2.3 2.3.1 2.3.2

3. 3.1 3.2 3.3 3.4 3.4.1 3.4.2 3.4.3

4. 4.1 4.2 4.3 4.4

5. 5.1 5.2

6. 6.1 6.2 6.3 6.4

7. 7.1 7.2

General information _____________________________________3 Rights to changes ______________________________________________ 3 Packaging and storage __________________________________________ 3 Safety measures ________________________________________________ 3

Introduction ____________________________________________6 Advantages and specials _________________________________________ 6 Components of the system _______________________________________ 7 Description of the accessories ____________________________________ 8 Adapter box for the PNP mode ___________________________________________ 8 Accessories for the stringline sensing _____________________________________ 9

Mounting ______________________________________________10 Dimensions of the device _______________________________________ 10 Mounting of the G 176 M ________________________________________ 11 Attaching the connecting cable __________________________________ 11 Attaching the system components ________________________________ 12 Attaching the sensing tube to the sensor arm______________________________ 12 Attaching the sensing ski to the sensor arm _______________________________ 12 Attaching the sensor arm to the controller ________________________________ 12

Operation, working examples and start-up __________________ 13 The control elements ___________________________________________ 13 Sensing of a stringline __________________________________________ 14 Sensing of a surface ___________________________________________ 14 Start-up ______________________________________________________ 15

Maintenance ___________________________________________16 General information ____________________________________________ 16 Periodic maintenance___________________________________________ 16

Connecting plan, specifications and troubleshooting ________17 Pin connections _______________________________________________ 17 Block diagram _________________________________________________ 17 Specifications _________________________________________________ 18 List of failures and troubleshooting _______________________________ 19

Spare parts ____________________________________________20 Illustration of the spare parts ____________________________________ 20 List of spare parts _____________________________________________ 21

Page 2

1.

General information

1.1

Rights to changes

We try to ensure that these operationg instructions are correct and up to date. In order to maintain our technical leadership, however, it might be necessary, without prior warning, to make changes to the product and to its operation which, under circumstances, do not correspond to the information given here. We accept no liability for disturbances, losses or damages caused thereby.

1.2

Packaging and storage

The product is carefully packed to ensure sufficient protection during shipment. On receipt the packaging and the contents should be inspected for possible damage. Should there be signs of damage the equipment must not be operated !!! Damaged cables and connectors are also a safety risk and must not be used !!! In the event of damage contac ABG. The equipment must be protected against humidity and dirt if it is not to be used immediately.

1.3

Safety measures

Warning: Before assembly, setting up and operating the equipment read the operating instructions carefully and fully. Should questions arise, contact your ABG supplier. Safety precautions: The safety precautions recommended here correspond to basic regulations regarding operation of electrical systems. They can be applied for all applications in conjunction with ABG equipment. Assembly: Only original ABG cables may be used. Plugs and sockets must not be removed from the cable as they are protected against humidity and removing them would destroy their protection. Ensure that the safety screw fasteners sit securely on the connectors . Further information about the assembly of the equipment, and the sensors, can be found in the data sheets attached or in these operating instructions.

Page 3

Wiring and cabling: The wiring and cabling must be correctly carried out in accordance with these instructions. All supply cables and terminals must be sized according to the current taken. Further, all connections must be made in accordance with VDE regulations or regulations of the area in which the equipment is used. Safety in the event of disturbances: This equipment has been developed and tested for industrial environments. Nevertheless, microprocessor technology requires careful installation. We would therefore like to point out the following which, if not heeded to, can lead to disturbances during the operation later: -

Pay attention to the correct polarity of the connections Do not exceed (neither too high nor too low) the specified voltage supply range Protect the equipment with a suitable supply fuse Use cables of adequate current and voltage ratings Use the shortest possible cable paths. (Avoid loops) Lay out load, control and signal cables in separate channels where possible Suppress contactor and relay coils Prerequisite for a disturbing sure mode is a good electrical connection between the machine chassis and housing chassis of the units. Connect screened leads to earth at one end only (equipment end) Do not supply other equipment directly from the supply terminals Do not use unused terminals as connections for other equipment

Maximum voltages: Do not exceed the maximum voltages. The maximum voltage between any two circuits isolated from one another, or between any isolated circuit and earth is, unless otherwise stated, limited to its highest input voltage or the supply voltage. The connecting terminals or connectors must be fitted with a suitable fuse. Fuses: The equipment is fitted with electronic fuses which protect it against wrong polarity, voltage transients and overvoltages of short duration. The voltages specified in the technical data may not be exceeded.

Page 4

Configuration: The equipment can be configured by the user. It is the responsibility of the user to reconfigure according to the operating conditions of the system. Alarm supervision In complex systems, in which a fault could endanger operating personnel or damage to the system, it is advisable, to use an independent alarm unit. An independent alarm unit provides protection and shut-down of the system in the event of an alarm. In many cases the use of an alarm from within the controller itself does not, because of its dependence on the system, offer adequate protection. Explosive areas The equipment is not designed for use in explosive areas. Fault clearance Before starting to clear faults make sure that all voltages have been disconnected. Defective equipment should be tested in an area which has been especially built for this purpose. Any attempt to remove faults from equipment that is still installed can be dangerous to personnel and to the system itself. Before removing or replacing sensors make sure that the voltage supply has been disconnected. Ask for help Ask your ABG supplier if you have questions concerning the operation and assembly of the equipment.

Failure to observe the above safety measures can cause breakdown of the equipment or of the system. Damages caused by such negligence are not covered by the manufacturer's guarantee.

Page 5

2.

Introduction

2.1

Advantages and specials

The Grade Controller G 176 M and the Slope Controller S 276 M are two fully independently working units which can be run separately but also together as a whole system for the automatic control of level, direction and cross slope. The ABG levelling system is most commonly used to control the screed position of the finisher, but also works successfully on milling machines, concrete pavers, bulldozers and other construction machines.

The reliable automatic levelling system of ABG for the control of your road construction machine.

Increasing costs for material and operating time call for precise working at an according capacity per day. The smallest fraction of a centimer during the laying of asphalt, or superfluous extension of the operating time may represent for you the limit between profit and loss. With the ABG level controller G 176 M you made the right choice. All advantages at a glance: Easy handling Safe to false polarity and voltage peaks Supply voltage 10 - 40 V DC Control modules for Grade and Slope interchangeable Optional connection for the ABG laser receiver

Page 6

2.2

Components of the system

The components of the system: G 176 M, sensor arm, sensing tube, sensing ski and 6 m connecting cable.

The G 176 MS system

Order number: 13981915

consists of the following components: 1 1 1 1 1 1

Level controller G 176 M, device Sensor arm with balancing weight Sensing tube 8" Sensing ski 6 m connecting cable 3 m connecting cable

Order number: 14258982 Order number: 13913058 Order number: 10644466 Order number: 58867623 Order number: 13925193 Order number: 13925785

Page 7

2.3

Description of the accessories

The accessories mentioned here can be ordered at ABG with their order number.

Page 8

2.3.2

Accessories for the stringline sensing

Tens.Wire W.Cross Hasp 500m = 13948336 1000m= 13948344 1500m= 13948351

Steel rod, approx. 0,80 m Order number: 13948286 The steel rod

Metal stringline holder, complete

Wire Tensioner Ordernumber: 13978192

Cross Bar Ordernumber: 54427570

Clamp Ordernumber: 56278344 Page 9

3.

Mounting

3.1

Dimensions of the device

The dimensions of the G 176 M

Page 10

3.2

Mounting of the G 176 M

The level controller G 176 M can be mounted easily and rapidly with simple tools. For this purpouse a fastening tubewithacrankhandleshouldbemountedasanextension of the control unit (actuator).

Fastening tube with crank handle

Locking screws

1. 2. 3.

Set the valve switch to the “STANDBY” position. Loosen the locking screws of the fastening tube. Insert the round centering pivot that is on top of the controller’s housing vertically into the fastening tube. Turn the controller’s housing so that the operator can see the lamps (front panel of the device against the direction of travel). Lock the controller’s centering pivot to the fastening tube with the according locking screws.

4.

5.

3.3

Attaching the connecting cable

Centering pivot

Mounting of the G 176 M

Set the valve switch to the “STANDBY” position. 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. To the machine To the controller Attaching of the

connecting cable

Page 11

3.4

Attaching the system components

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

3.4.1

Attaching the sensing tube to the sensor arm

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

Attaching of the sensing tube to the sensor arm

3.4.2

Attaching the sensing ski to the sensor arm Remove the locking pin from the pin of the sensing ski; remove the pin. Insert the fastening ring of the sensor arm into the fastener of the ski. Push the pin through the fastener of the ski and the fastening ring of the sensor arm. Lock the pin with the locking pin. Attaching of the sensing ski to the sensor arm

3.4.3

Attaching the sensor arm to the controller Turn the flat part of the shaft towards the front of the controller. Loosen the locking screw of the sensor arm. Push the sensor arm on the shaft. Lock the sensor arm with the locking screw. Locking screw

Attaching of the sensor arm to the controller

Page 12

4.

Operation, working examples and start-up

4.1

The control elements

Control lamp Valve switch Control lamp

Selector switch

Sensitivity adjustment

Description of the control elements

Page 13

4.2

Sensing of a stringline

Switch the selector on the module to the “GRADE” position. Set the valve switch to the “STANDBY” position. The sensing tube must be attached to the sensor arm. When attaching the sensor arm take care that the flat side of the shaft is oriented towards the front side of the controller and that the fastening screw of the sensor arm rests on the flat part of the shaft. Set the counterweight of the sensor arm in such a way that the sensor arm presses the sensing tube onto the reference when the controller is set to zero. The zero setting is achieved by positioning the controller by means of the crank handle until the two control lamps go out.

Direction of travel

Stringline Direction of travel Sensing of the stringline

Note: If the tension of the stringline used as reference is too low, it is possible to guide the sensing tube beneath the stringline. For this purpose, the counterweight has to be set in such a way that the sensor arm presses the sensing tube from below against the stingline when the controller is set to zero.

Sensing with the tube gliding under the stringline

4.3

Sensing of a surface

Switch the selector on the module to the “GRADE” position. Set the valve switch to the “STANDBY” position. The sensing ski must be attached to the sensor arm. When attaching the sensor arm take care that the flat side of the shaft is oriented towards the front side of the controller and that the fastening screw of the sensor arm rests on the flat part of the shaft. Set the counterweight of the sensor arm in such a way that the sensor arm presses Direction of travel the sensing ski onto the reference when the controller is set to zero. The zero setting is achieved by positioning the controller by means of the crank handle until the two control lamps go out.

Sensing of a surface

Page 14

4.4

Start-up

Turning the valve switch to the position “ON” connects the output of the controller with the according valve. The automatic system is activated.

Valve switch

Note: A clockwise rotation of the sensitivity adjustment increases the sensitivity of the controller. A counterclockwise rotation decreases the sensitivity. The valve switch

Turn the sensitivity adjuster clockwise until the hydraulic system starts to swing. When this is the case, turn the adjuster slowly counterclockwise until the hydraulic system quiets down. A minor readjustment of the device may be necessary after the first operation of the plant becausevibrations,temperaturesetc.influence the control circuit. No further adjustment should be needed if the readjustment had been done under working conditions.

Sensitivity adjustment The sensitivity

adjustment (loosen the locknut and adjust by means of a screw driver).

The variation of the working level (adjustment of the working point) has to be done by means of the crank handle.

The crank handle

Page 15

5.

Maintenance

5.1

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.

5.2

Periodic maintenance

Normal repair procedures carried out in the open consist in replacing burned-out lamps and other spare parts that have been located with the troubleshooting. 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.

Page 16

6.

Connecting plan, specifications and troubleshooting

6.1

Pin connections 7 pole device plug: for the connection to the machine Allocation: A: + supply B: Output DOWN C: - supply D: Output UP E: free F: free G: free

Plug on the level controller

6.2

7 pole device plug

Block diagram

Amplifier Transmitter Ref. Vcc

Transmitter Vcc

DOWN UP

The block diagram of the G 176 B

Page 17

6.3

Specifications

Power supply:

10-40 V DC

Operating current:

0.5 amp. approx. (without valves)

Current load:

3 amp. approx. (current limited)

Output signal:

ON/OFF with pulse width modulation (*NPN*)

Frequency:

3 Hz approx.

Operating range:

+/- 80 mm level difference measured at the sensor arm

Resolution:

0.25 mm level difference measured at the sensor arm

Sensitivity: Accuracy:

Adjustable from overswinging up to a dead range of 5 mm 0.5 mm level difference measured at the sensor arm

Working temperature range:

-10 °C to +60 °C

Storage temperature range:

-25 °C to +75 °C

Vibration:

up to 4g, 10-100 Hz

Weight:

approx. 1.9 kg

Protection type:

IP 54

The values given for accuracy and resolution are purely electrical values of the controller. Those actually reached also depend from the construction and type of the machine respectively used and of the operating conditions.

Page 18

6.4

List of failures and troubleshooting

The list of failures and troubleshooting indicates all the failures that are the most likely to occur during the operation of the system. It also describes their reasons and the actions to be done in order to eliminate them. Symptoms:

Possible reasons:

Action:

Lamps are not on. Controller does not actuate the valves

No voltage avilable for the controller

Check the wiring to the machine

Controller module faulty

Replace the module

Wiring within housing of the controller faulty

Check the wiring

Controller module faulty

Replace the module

Current cable to the controller faulty

Replace the cable

Cable damaged

Check the cable with the ohmmeter

Wiring within the housing faulty

Check the wiring

Lamps are burned-out

Replace the lamps

Controller module faulty

Replace the module

Hydraulic system works on only one side. One lamp is on (indicates the direction of the movement)

Controller module faulty

Replace the module

Sensor is faulty

Replace the sensor

Hydraulic system works but only one lampe is on

Lamps are faulty

Replace the lamp

Hydraulic system works but both lamps remain on

Controller module faulty

Replace the module

Sensitivity of the controller cannot be set

Controller module faulty

Replace the module

Zero offset of the controller

Fastening screws of the sensor bearing got loose

Reset the sensor and tighten the screws

Controller module faulty

Replace the module

Sensor is faulty

Replace the sensor

Lamps work but controller does not actuate the valves

Lamps are not on but controller actuates the valves

Any control or measurement on the controller should be executed by educated personnel only which has been specially trained for such work.

Page 19

7.

Spare parts

7.1

Illustration of the spare parts

14

1

2

4

16 5

2

8 9 10

6

11

7 12

13

Illustration of the spare parts of the G 176 M

Page 20

19

7.2

List of spare parts

Pos. Bestellnummer Pos. Order number

Bezeichnung

01 02 05b 06 07 08 09a 09b 10 11 12 13 14 16 19

Aufnahmezapfen Schalter Potentiometer 6,3mm Achse (Empf.) Sensor Pot. m. Halterung Achse Widerstandsleiste Gerätestecker 7pol Dichtung (für Gerätestecker 7pol) Riemenrad für Potentiometer Zahnriemen Lagerschale mit Lager Riemenrad für Achse Controlmodul (Standard) Dichtung für Modul Kabeldose 7 polig 90° Winkel

14232763 13913009 14232805 14232896 14232888 14232904 14232847 14232854 14232912 14232938 14232870 14232970 14232771 14232862 13969100

Description

Page 21

Centering pivot Switch Potentiometer 6,3 mm shaft (sensitivity) Sensor potentiometer with holder Shaft Resistorbord Connector 7 pole male Gasket (for connector 7 pole male) Belt wheel for potentiometer Toothed belt Bearing shell and bearing Belt wheel for axis Controlmodule (standard) Gasket for module Cable con. 7 pole female 90° angle, female

Slope-Controller S 276 M

Page 22

Index 1. 1.1 1.2 1.3

2. 2.1 2.2 2.3

3. 3.1 2.3.1

3.2 3.3

4. 4.1 4.2 4.3 4.5

5. 5.1 5.2

6. 6.1 6.2 6.3 6.4

7. 7.1 7.2

General information ___________________________________ 24 Rights to changes _____________________________________________ 24 Packaging and storage _________________________________________ 24 Safety measures ______________________________________________ 24

Introduction __________________________________________ 27 Advantages and specials _______________________________________ 27 Components of the system ______________________________________ 28 Description of the accessories ___________________________________ 29

Mounting ____________________________________________ 29 Dimensions of the device _______________________________________ 29 Adapter box for the PNP mode __________________________________________ 29

Mounting _____________________________________________________ 30 Attaching the connecting cable __________________________________ 30

Operation, working examples and start-up _______________ 31 The control elements ___________________________________________ 31 The Handset __________________________________________________ 31 Zero setting ___________________________________________________ 32 Setting of the crosse slope and start-up ___________________________ 33

Maintenance _________________________________________ 34 General information ____________________________________________ 34 Periodic maintenance __________________________________________ 34

Connecting plan, specifications and troubleshooting ______ 35 Pin connections _______________________________________________ 35 Block diagram ________________________________________________ 35 Specifications _________________________________________________ 36 List of failures and troubleshooting _______________________________ 37

Spare parts ___________________________________________ 38 Illustration of the spare parts ____________________________________ 38 List of spare parts _____________________________________________ 40

Page 23

1.

General information

1.1

Rights to changes

We try to ensure that these operationg instructions are correct and up to date. In order to maintain our technical leadership, however, it might be necessary, without prior warning, to make changes to the product and to its operation which, under circumstances, do not correspond to the information given here. We accept no liability for disturbances, losses or damages caused thereby.

1.2

Packaging and storage

The product is carefully packed to ensure sufficient protection during shipment. On receipt the packaging and the contents should be inspected for possible damage. Should there be signs of damage the equipment must not be operated !!! Damaged cables and connectors are also a safety risk and must not be used !!! In the event of damage contact ABG. The equipment must be protected against humidity and dirt if it is not to be used immediately.

1.3

Safety measures

Warning: Before assembly, setting up and operating the equipment read the operating instructions carefully and fully. Should questions arise, contact your ABG supplier. Safety precautions: The safety precautions recommended here correspond to basic regulations regarding operation of electrical systems. They can be applied for all applications in conjunction with ABG equipment. Assembly: Only original ABG cables may be used. Plugs and sockets must not be removed from the cable as they are protected against humidity and removing them would destroy their protection. Ensure that the safety screw fasteners sit securely on the connectors . Further information about the assembly of the equipment, and the sensors, can be found in the data sheets attached or in these operating instructions.

Page 24

Wiring and cabling: The wiring and cabling must be correctly carried out in accordance with these instructions. All supply cables and terminals must be sized according to the current taken. Further, all connections must be made in accordance with VDE regulations or regulations of the area in which the equipment is used. Safety in the event of disturbances: This equipment has been developed and tested for industrial environments. Nevertheless, microprocessor technology requires careful installation. We would therefore like to point out the following which, if not heeded to, can lead to disturbances during the operation later: -

Pay attention to the correct polarity of the connections Do not exceed (neither too high nor too low) the specified voltage supply range Protect the equipment with a suitable supply fuse Use cables of adequate current and voltage ratings Use the shortest possible cable paths. (Avoid loops) Lay out load, control and signal cables in separate channels where possible Suppress contactor and relay coils Prerequisite for a disturbing sure mode is a good electrical connection

-

the machine chassis and housing chassis of the units. Connect screened leads to earth at one end only (equipment end) Do not supply other equipment directly from the supply terminals Do not use unused terminals as connections for other equipment

between

Maximum voltages: Do not exceed the maximum voltages. The maximum voltage between any two circuits isolated from one another, or between any isolated circuit and earth is, unless otherwise stated, limited to its highest input voltage or the supply voltage. The connecting terminals or connectors must be fitted with a suitable fuse. Fuses: The equipment is fitted with electronic fuses which protect it against wrong polarity, voltage transients and overvoltages of short duration. The voltages specified in the technical data may not be exceeded.

Page 25

Configuration: The equipment can be configured by the user. It is the responsibility of the user to reconfigure according to the operating conditions of the system. Alarm supervision In complex systems, in which a fault could endanger operating personnel or damage to the system, it is advisable, to use an independent alarm unit. An independent alarm unit provides protection and shut-down of the system in the event of an alarm. In many cases the use of an alarm from within the controller itself does not, because of its dependence on the system, offer adequate protection. Explosive areas The equipment is not designed for use in explosive areas. Fault clearance Before starting to clear faults make sure that all voltages have been disconnected. Defective equipment should be tested in an area which has been especially built for this purpose. Any attempt to remove faults from equipment that is still installed can be dangerous to personnel and to the system itself. Before removing or replacing sensors make sure that the voltage supply has been disconnected. Ask for help Ask your ABG supplier if you have questions concerning the operation and assembly of the equipment.

Failure to observe the above safety measures can cause breakdown of the equipment or of the system. Damages caused by such negligence are not covered by the manufacturer's guarantee.

Page 26

2.

Introduction

2.1

Advantages and specials

The Slope Controller S 276 M and the Grade Controller G 176 M are two fully independently working units which can be run separately but also together as a whole system for the automatic control of level, direction and cross slope. The ABG levelling system is most commonly used to control the screed position of the paver, but also works successfully on milling machines, concrete pavers, bulldozers and other construction machines.

The reliable ABG automatic levelling system for the control of your road construction machines.

Increasing costs for material and operating time call for precise working at an according capacity per day. The smallest fraction of a centimer during the laying of asphalt, or superfluous extension of the operating time may represent for you the limit between profit and loss. With the ABG Slope Controller S 276 M you made the right choice. All advantages at a glance: Easy handling Safe to false polarity and voltage peaks Supply voltage 10 - 40 V DC Control modules for Grade and Slope interchangeable

Page 27

2.2

Components of the system

The components of the system: S 276 M with Handset and 6 m connecting cable.

The S 276 M system consists of the following components: 1

Slope Controller S 276 M, device

Order number:13941513

1

6 m connecting cable

Order number: 13941604

Page 28

2.3 Description of the accessories The accessories mentioned here can be ordered at ABG with their order number.

3.

Mounting

3.1

Dimensions of the device

The dimensions of the S 276 M

Page 29

3.2

Mounting

The slope controller S 276 M can be mounted easily and rapidly with simple tools. The slope controller must be mounted at the reference level (for pavers on the screed). The fastening plate of the S 276 M has four fastening holes. The slope controller should be mounted in such a way that easy operating of the device is possible.

Attaching of the slope controller

The mounting plate of the slope controller

3.3

Attaching the connecting cable

Set the valve switch to the “STANDBY” position. 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.

To the machine

To the controller

Attaching of the connecting cable

Page 30

4.

Operation, working examples and start-up

4.1

The control elements

LC-Display Control lamp UP key FAST key

Valve switch Control lamp Sensitivity adjustment Selector switch

RESET key DOWN key

Description of the control elements

4.2

The Handset

The Handset is used to set the required cross slope in percentage, one tenth of a percentage and one hundredth of a percentage. The Handset has a LC-Display. The cross slope can be adjusted up to 15 % to one or to the other side by means of the UP or DOWN keys. If you press the FAST key additional the speed of adjusting will increase. Pressing the RESET key and keeping it pressed shows the symbol of the UP and DOWN arrows which are flashing. After 4 seconds the arrow symbols are on. Pressing the UP or DOWN key additional changes the display value without influence to the setpoint. This way of proceeding is important for the zero setting of the controller.

Page 31

The Handset of the S 276 M

4.3

Zero setting

If the level controller is mounted, if the valve switch is positioned to “STANDBY” and if the connecting cable is attached, the controller should be adjusted to “zero”. The following procedure is recommanded for the zero setting only.

LC-Display Holding knob

UP-key FAST-key RESET-key DOWN-key

The Handset of the S 276 M

1. 2. 3. 4. 5.

Put the actuator (the screed in case of the finisher) to zero by means of an accurate water level. Switch on the power supply of the machine in order to supply voltage to the level controller. Set the sensitivity adjuster to the middle position. Cange the setpoint by the means of the UP or DOWN key until both lamps are off. Pressing the RESET key and keeping it pressed shows the symbol of the UP and DOWN arrows which are flashing. After 4 seconds the arrow symbols are on. Press know the UP or DOWN key additional and change the display value to the value 0.00.

Note: Should one of the two control lamps be on or flash after this setting, you must repeat the steps 4 and 5.

Page 32

4.5

Setting of the crosse slope and start-up

Adjust the required cross slope to the left or to the right by by the means of the UP or DOWN on the Handset. The counter indicates the cross slope ajusted. The control lamps indicate the functioning of the controller. In case of a deviation between the Setpoint and the actuel slope the lamps are switched on and indicate the direction of travel. If both lamps are out, the slope is in the required position.

If the slope controller has to be effective on the left side of the machine, seen in the direction of travel, the selector must be switched to the position “L” for left. If the slope controller has to be effective on the right side of the machine, seen in the direction of travel, the selector must be switched to the position “R” for right. The connecting cable must be attached to the corresponding side of the machine. Turning the valve switch to the position “ON”

Selector

connects the output of the controller with the according valve. The automatic system is activated. Note: A clockwise rotation of the sensitivity adjustment increases the sensitivity of the controller. A counterclockwise rotation decreases the sensitivity. Turn the sensitivity button clockwise until the

Valve switch

hydraulic system starts to swing. When this is the case, turn the adjuster slowly counterclockwise until the hydraulic system quiets down. A minor readjustment of the device may be necessary after the first operation of the plant becausevibrations,temperaturesetc.influence the control circuit. No further adjustment should be needed if the readjustment had been done under working conditions.

The sensitivity adjuster (loosen the locknut and adjust with a screw driver).

Page 33

5.

Maintenance

5.1

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.

5.2

Periodic maintenance

Normal repair procedures carried out in the open consist in replacing burned-out lamps and other spare parts that have been located with the troubleshooting. 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.

Page 34

6.

Connecting plan, specifications and troubleshooting

6.1

Pin connections 7 pole device plug: for the connection to the machine Allocation: A: + supply B: Controller output DOWN C: - supply D: Controller output UP E: free F: free G: free

Plug on the slope controller

6.2

7 pole device plug

Block diagram

Amplifier

Ref. Transmitter

Transmitter

lower raise Output

The block diagram of the S 276 M

Page 35

6.3

Specifications

Power supply:

10-40 V DC

Operating current:

0.5 amp. approx. (without valves)

Current load:

3 amp. approx. (current limited)

Output signal:

ON/OFF with pulse width modulation (*NPN)

Frequency:

3 Hz approx.

Operating range:

+/- 10 %, inclination adjustable by 0.02 %

Resolution

0.01 %

Sensitivity:

Adjustable from overswinging up to a dead range of 0.5 %

Accuracy:

0.05 % inclination

Working temperature range:

-10 °C to +60 °C

Storage temperature range:

-25 °C to +75 °C

Vibration:

up to 4g, 10-100 Hz

Weight:

approx. 2.9 kg

Protection type:

IP 54

The values given for accuracy and resolution are purely electrical values of the controller. Those actually reached also depend from the construction and type of the machine respectively used and of the operating working conditions.

Page 36

6.4

List of failures and troubleshooting

The list of failures and troubleshooting indicates all the failures that are the most likely to occur during the operation of the system. It also describes their reasons and the actions to be done in order to eliminate them. Symptoms:

Possible reasons:

Action:

Lamps are not on. Controller does not actuate the valves

No voltage avilable for the controller

Check the wiring the plant

Controller module faulty

Replace the module

Wiring within housing of the controller faulty

Check the wiring

Controller module faulty

Replace the module

Current cable to the controller faulty

Replace the cable

Cable damaged

Check the cable with the ohmmeter

Wiring within the housing faulty

Check the wiring

Lamps are burned-out

Replace the lamps

Controller module faulty

Replace the module

Hydraulic system works on only one side. One lamp is on (indicates the direction of the movement)

Controller module faulty

Replace the module

Sensor is faulty

Replace the sensor

Hydraulic system works but only one lampe is on

Lamps are faulty

Replace the lamp

Hydraulic system works but both lamps remain on

Controller module faulty

Replace the module

Sensitivity of the controller cannot be set

Controller module faulty

Replace the module

Zero offset of the controller in relation to the beam

Fastening screws of the sensor bearing got loose

Reset the sensor and tighten the screws

Controller module faulty

Replace the module

Sensor is faulty

Replace the sensor

Handset faulty

Replace the Handset

Controller module faulty

Replace the module

Lamps work but controller does not actuate the valves

Lamps are not on but controller actuates the valves

Percentageindicatedvariesbutcross slope does not change

Any control or measurement on the controller should be executed by educated personnel only which has been specially trained for such work. Page 37

7.

Spare parts

7.1

Illustration of the spare parts

2

1

9

Illustration of the spare parts of the S 276 M

Page 38

12

14

6 m connecting cable

Order number: 13941604

Illustration of the spare parts of the S 276 M

Page 39

7.2

List of spare parts

Pos. Bestellnummer Pos. Order number

Bezeichnung

01 02 09 12 14

Handset für S 276 M mit Anschlußkabel Neigungsregler Sensor - LSTA für S 276 M Controlmodul (Standard) Dichtung für Modul

56241888 14258974 13941554 14232771 14232862

Description

Page 40

Handset for S 276 M with cable Switch Sensor - LSTA for S 276 M Controlmodule (standard) Gasket for module

The warranty statement is provided within the manual kit shipped with the machine.

Ref. No. VOE21A1004952 CPN 80858814 Printed in Sweden Volvo, Hameln

English CST