Seg System A2 H15 Guida alla configurazione

S44-H15E

INSTRUCTION

SYSTEM A2

BELTWEIGHER MODEL H15

General information

Mechanical installation

Electrical installation

Commissioning and operation

Technical information

18-08-16 S44-H15E 1-1

S-E-G SYSTEM A2-H15 INSTRUCTION

Table of contents

1. GENERAL 1-2

1.1 System description 1-2

1.2 Belt scale parts 1-2

1.3 Delivery & storage 1-3

2. MECHANICAL INSTALLATION 2-1

2.1 Mechanical installation 2-1

3. ELECTRICAL INSTALLATION 3-1

3.1 General 3-1

3.2 Terminal connections 3-1

3.2.1 Optional 90 - 230Vac/24Vdc module 3-2

3.3 Loadcell connection 3-3

3.4 Power up 3-5

3.5 Serial communication and printout 3-6

4. COMMISSIONING and start-up 4-1

4.1 General description 4-1

4.2 Checklist prior to start-up 4-2

4.3 START-UP procedure 4-3

5. DAILY OPERATION 5-1

5.1 Front Panel 5-1

5.2 Error indications 5-2

5.3 Printout 5-3

6. TECHNICAL INFORMATION 6-1

6.1 Menu system overview: 6-1

6.2 Parameter explanations 6-2

6.3 Controller Specifications 6-7

7. MAINTENANCE 7-1

7.1 Housing maintenance 7-1

8. CE Compliance and Harmonized Standards 8-1

8.1 WEEE Compliance 8-1

8.2 RoHS Compliance 8-1

8.3 CE Compliance 8-1

8.4 EC Declaration of Conformity 8-2

This instruction contains all necessary information to perform a successfull installation, connection and start-up

procedure of the instrumentation.

In order to fully understand the procedures and actions involved, we would like you to spend some time reading

this instruction carefully before installation and operation of this product.

If you should have any further questions, please contact your local S-E-G representative.

The contents of this manual is believed to be correct at the time of printing, the manufacturer reserves the right to

change the contents without notice if so required.

NOTE! This manual is valid for firmware version: June 29 2015. (Indicated in display at power up)

1. GENERAL

1.1 System description

The belt scale controller model H15 is equipped with all the basic belt scale controller functions such as: Flow

indication, Totalising, Status indications etc.

The H15 model designates all parameters basic default values during the start-up procedure.

This means that the controller will be ready to use immediately after a performed start-up procedure, without

putting in hours of endless programming and recording of parameter changes.

1.2 Belt scale parts

The belt scale's main components comprise devices for sensing the load of the material deposited on the belt,

measuring of belt travel, belt position sensor and the controller instrumentation.

Load measurement

This is performed with one or several weighing units installed in the conveyor.

The weighing unit built-in loadcell emits electrical signals proportional to the weight of material

per unit of belt length.

Weighing units are available for different capacities, belt widths and troughing angles.

The weighing unit supplied with each belt scale system is described in separate instructions.

Measuring of belt travel

This movement is measured with a single pulse sensor or a complete tachometer unit. The tachometer must be

brought to rotate at a rate which is proportional to the belt speed. The tachometer and its installation are

described in separate instructions. If an additional belt revolution sensor is connected, automatic belt

profiling compensation is possible. Influences of uneven belts and belt splices can then be almost completely

eliminated, resulting in a much higher totalising accuracy compared to standard belt scale controllers.

Instrumentation

The controller contains software program for processing of all measurement data from the weighing unit and the

tachometer. The controller is equipped with the following features/functions:

- Serial port RS485 with Modbus RTU, ASCII protocol for connection to a printer, PLC, PC etc..

- Built -in active 4-20mA output, galvanically isolated representing indicated flowrate.

- 2 output relays which can be designated different functions; totaliser pulse, flow level, etc.

The resulting processed data such as: Flowrate (t/h), Totalised amount of material, Beltspeed, etc.

Is accessed trough the built in LCD display unit, or remotely via serial communication.

Serial communication is useful for retrieving data intended for administrative purposes or process control. Data

can be transmitted/received in a number of different ways, such as: RS485 or via different optional fieldbus

converters like: Ethernet, TCP/IP, Profibus,etc.

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S-E-G SYSTEM A2-H15 INSTRUCTION

1.3 Delivery & storage

Measures have been taken to protect the System A2 during shipment by ensuring that all parts which may be

damaged are properly secured. Inspect the equipment on delivery and report any shortages or physical damage

to your SEG representative. If storage is necessary, it should be in a dry and heated building with temperature

between5-50

oC.

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S-E-G SYSTEM A2-H15 INSTRUCTION

2. MECHANICAL INSTALLATION

2.1 Mechanical installation

When choosing a location for installing the controller, care should be given to avoid an unsuitable environment

even though the enclosure front panel conforms to NEMA 4 (IEC Class IP 65) requirements.

For outdoor installations, protection from weather elements must be provided. The controller is available in water

proof enclosures for this purpose.

The installation place should be situated in a shady area that is never exposed to direct sunlight or rain.

If the mounting surface is damp or wet, spacers (approximately 12 mm thick) should be placed between the

mounting plate and the mounting surface. For dimensions, refer to figure 2.1.

18-08-16 S44-H15E 2-1

S-E-G SYSTEM A2-H15 INSTRUCTION

Panel mount, type -P

weight: 0,5kg

Field enclosure type -W

weight: 3,0kg

Field enclosure type -V

weight: 2,5kg

150

190

222

162

170

4xØ6

258

190

222

270

278

4xØ6

159

105

6xØ3,5

45 45

72 72

136

CUTOUT:

Figure 2.1 Dimensions

3. ELECTRICAL INSTALLATION

3.1 General

The Controller meet requirements for Í-marking according to EN 55022 (1998) + A1 + A2 and EN 61000-4-3

(2006). In order to ensure maximum EMC-protection and CE-compatibility, it is required that the cable installation

instructions are strictly adhered to.

3.2 Terminal connections

The procedure which must be observed in connecting electrical cables to SEG's weighing systems is described

below.

The weighing system utilizes different cable types.

- Power cable for main voltage to the scale controler.

- Signal cable for connection of load cells.

- Control cables for output relays.

- Signal cable 0/4-20mA output to auxiliary equipment (PLC, PC, printer, remote indicator etc.).

- Signal cable for serial communication RS485 to auxiliary equipment (PLC, PC, Indicator etc.).

Signal cables must be laid with great care to ensure faultless operation of the weighing system. Signal cables may

not be laid near any kind of high power cable. Thus, they may not be laid in a common conduit or a common cable

trough. Signal cables parallel to power cables must be separated by at least 2 m when distance exceeds a few

metres. Shielded cables must be used for all installations, and care must be taken to ensure that the shield is

properly connected inside the cable glands, so that the shield gets proper contact with the controller enclosure.

Signal cable splicing should be avoided. Junction and connection boxes must not permit the entry of any

moisture. Cable clamps must be used for all cables.

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S-E-G SYSTEM A2-H15 INSTRUCTION

Fig.3.1, Terminal locations

Terminal no. Description

1,01,2,3,4,04 Load cell signal input 0-45mVdc, max 140mA/85 Ohms. Ref. to section 3.3 - 3.4.

5(-), 6(+) Speed/pulse sensor input; S-E-G type F, Relay dry contact or NPN proximity switch.

V+, V-, Ground Power supply 24Vdc (13-30Vdc). Optional 90-230Vac/24Vdc module (PW-24) available.

31, 32, 33 1 RS485 serial port. 31(Gnd), 32(TRx-), 33(TRx+) Ref. to section 3.5.

41,42 1 Digital input for belt position sensor. Contact closure or Proximity switch (NPN or PNP).

51(+),52(-) Analog output 4-20mA (Flowrate), max 350 Ohms.

21,22,23,24 2 Relay ouputs, closing contacts (NO) 24Vdc/1A.

21,22: Totaliser pulse. 23,24: Selectable; Belt running, Flow level, Speed level or Load level.

3.2.1 Optional 90 - 230Vac/24Vdc module

An optional power module (PW-24) for 90-230Vac input with 24Vdc output, is available that fits inside all wall

mounting enclosure versions.

With the module installed, connection to a 115/230Vac mains power line is possible.

The module is being shipped as a separate item, and installation and connection is shown below.

The power module is attached to the enclosed bracket with 2 pcs M3x4 screws. The electrical connection is

preferably done before installation of the unit into the enclosure, for easier access of the screw terminals.The 2

securing M3 lock nuts may be turned 1/2 a turn on the threded pins before attaching the unit, as the holes are cut

out as "keyholes" to simplify attachment.

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S-E-G SYSTEM A2-H15 INSTRUCTION

3.3 Loadcell connection

A standardized connection technique, using 6-conductor cables, is employed for load cells. Two of these

conductors are for feeding the cells, two for load signal and two for sensing the line resistance. Due to this

connection method, cable lengths up to 500 m are possible (provided the distance to parallel high power cables is

at least 2 m when cable lengths exceed a "few" metres.)

Compensation conductors begin at the load cell's fixed cable which has 4 conductors, 2 of which are branched

with jumpers. The fixed load cell cable has no compensation conductors of its own but is factory calibrated to

match the load cell and must not be shortened unless absolutely necessary.

Connection of load cell cables to the control console depend on the number of load cells plus the distance

between load cells and the control console. SEG's junction and connection box are used for splicing and

interconnection.

Belt scales generally incorporate a pulse generator for detecting belt speed. The signal from the generator is

transmitted by an extra pair of conductors in the same cable used for the load cell signal.

When connecting load cells of other brands than SEG, check that they are compatible with a 12Vdc

supply voltage, and that the max current load does not exceed 140mA (~85 Ohms).

NOTE: Screens for load cell cables are connected to ground only when connected directly to the

controller. In the case where connection boxes are used, special terminals in the connection boxes are

used for the cable shields.

Connection to the controller is made at the terminal board SPS202, Refer to fig. 3.1

Terminal connections:

Term. Function SEG Load cell cable

1: Feed + Yellow

01: Sense + -

2: Load signal + Red

3: Load signal - Green

04: Sense - -

4: Feed - Blue

¤Signal ground. Connect to separate signal ground only, if available.

For Intrinsically safe (Eex) installations: Connect protective ground from zenerbarriers.

Refer to drawing overleaf.

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S-E-G SYSTEM A2-H15 INSTRUCTION

18-08-16 S44-H15E 3-4

S-E-G SYSTEM A2-H15 INSTRUCTION

3.4 Power up

The control console is designed to operate from a power source that will not apply more than 13-30 Volts DC

between the supply terminals V+ and V- (Negative ground only).

A protective ground connection by way of the grounding terminal is essential for safe operation as well as a good

clean power supply.

Note! A load of 85 - 1000 Ohms between terminals 1-4 is required for the controller to power up, e.g. the load cell

must be connected for the controller to operate correctly.

The controller memory has a lithium back-up battery (CR2450) which must be engaged after power-up to

ensure correct memorisation. As soon as power has been applied to the controller, the battery may be engaged

by pulling the plastic tab on the rear side of the controller.

If the tab has accidentally been pulled before power-up, just connect the controller to 24vdc for power-up and then

disconnect again. This will allow the internal CPU to perform a controlled shutdown, minimizing battery drain.

Note that if the controller will be stored for a long period of time before taken into operation, it will be better not to

engage the battery. Parameter settings can be permanently stored to a flash memory anyway from inside the

menusystem, for future restore without the need for battery to be activated.

The battery will keep the memory with time and date activated for approx. 1 year without power supply.

Regarding battery exchange - contact your local S-E-G representative for information.

18-08-16 S44-H15E 3-5

S-E-G SYSTEM A2-H15 INSTRUCTION

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