Flintec FAA-27 Manuale utente

Analog Amplifier

FAA-27

Technical Manual

Flintec GmbH

Bemannsbruch 9

74909 Meckesheim

GERMANY

www.flintec.com

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 1 of 21

Table of Contents

1. Safety Instructions...........................................................................2

2. Declaration Of Conformity ...............................................................3

3. Front View, Features And Specifications.........................................4

4. Installation And Commissioning.......................................................7

4.1 Mechanical Installation..................................................................8

4.2 Load Cell Connection....................................................................8

4.3 Analogue Output Connection........................................................8

4.4 Changing The Analogue Output....................................................9

4.5 Serial Port Connection................................................................10

4.6 Commissioning ...........................................................................10

5. Adjustments...................................................................................11

5.1 Adjustment With Rotary Switches ...............................................11

5.2 Fast Adjustment To Nominal Output Range................................13

5.3 eCal Electronic Adjustment Via xFace Software .........................13

5.4 Adjustment (eCal) With PLC .......................................................14

5.5 Testing the Scale Performance...................................................16

6. Setpoints .......................................................................................17

6.1 Setpoint Connection....................................................................17

6.2 Setpoint Adjustment...................................................................17

6.3 Adjustment To The Load On The Scale......................................17

6.4 Adjustment By Measuring The Analog Output.............................17

7. Operation.......................................................................................18

8. Programming With xFace Software Over RS232...........................19

8.1 Installation Of xFace Software ....................................................19

8.2 Connection To The xFace Software............................................19

9. Trouble Shooting...........................................................................21

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 2 of 21

RIGHTS AND LIABILITIES

1. Safety Instructions

CAUTION READ this manual BEFORE operating or servicing this equipment.

FOLLOW these instructions carefully. SAVE this manual for future reference. DO NOT allow

untrained personnel to operate, clean, inspect, maintain, service, or tamper with this

equipment. ALWAYS DISCONNECT this equipment from the power source before cleaning

or performing maintenance. CALL FLINTEC ENGINEERING for parts, information, and

service.

WARNING ONLY PERMIT QUALIFIED PERSONNEL TO SERVICE THIS

EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS, TESTS AND ADJUSTMENTS

THAT MUST BE MADE WITH POWER ON. FAILING TO OBSERVE THESE

PRECAUTIONS CAN RESULT IN BODILY HARM.

WARNING FOR CONTINUED PROTECTION AGAINST SHOCK HAZARD CONNECT

TO PROPERLY GROUNDED OUTLET ONLY. DO NOT REMOVE THE GROUND PRONG.

WARNING DISCONNECT ALL POWER TO THIS UNIT BEFORE REMOVING THE

FUSE OR SERVICING.

WARNING BEFORE CONNECTING/DISCONNECTING ANY INTERNAL

ELECTRONIC COMPONENTS OR INTERCONNECTING WIRING BETWEEN

ELECTRONIC EQUIPMENT ALWAYS REMOVE POWER AND WAIT AT LEAST THIRTY

(30) SECONDS BEFORE ANY CONNECTIONS OR DISCONNECTIONS ARE MADE.

FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN DAMAGE TO OR

DESTRUCTION OF THE EQUIPMENT OR BODILY HARM.

CAUTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC

SENSITIVE DEVICES.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any

means, mechanical, photocopying, recording, or otherwise, without the prior written permission of Flintec

GmbH.

No patent liability is assumed with respect to the use of the information contained herein. While every

precaution has been taken in the preparation of this book, FLINTEC assumes no responsibility for errors or

omissions. Neither is any liability assumed for damages resulting from the use of the information contained

herein.

The information herein is believed to be both accurate and reliable. FLINTEC, however, would be obliged to be

informed if any errors occur. FLINTEC cannot accept any liability for direct or indirect damages resulting from

the use of this manual.

FLINTEC reserves the right to revise this manual and alter its content without notification at any time.

Neither FLINTEC nor its affiliates shall be liable to the purchaser of this product or third parties for damages,

losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse, or abuse of

this product or unauthorized modifications, repairs, or alterations to this product, or failure to strictly comply with

FLINTEC operating and maintenance instructions.

FLINTEC shall not be liable against any damages or problems arising from the use of any options or any

consumable products other than those designated as Original FLINTEC Products.

NOTICE: The contents of this manual are subject to change without notice.

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 3 of 21

2. Declaration of Conformity

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 4 of 21

3. Front View, Features and Specifications

Microcontroller based analog load cell transmitter FT-27 has very high accuracy and

long term stability with its high tech design. Its high performance electronic calibration

via RS232C serial port without any test weight and fast calibration without measuring

output signal give big advantage to the users for calibration scales.

This high tech instrument gives the system designers a lot of advantages to increase

the system reliability and to reduce the installation and service times. Besides the

traditional analog output adjustment with any test weight, the electronic calibration

eCal and fast calibration with 20% max. test load reduces the calibration time.

All analog outputs of instruments are matched in the production to perform calibration

at PLC and for changing the instrument without recalibration in service.

There are 8 positioned rotary switches and annunciator LEDs in front of the

instrument. The front view and pin descriptions of FT-27 is shown below.

Name

Definition

LOAD CELL CONNECTION

- Ex

- Excitation

+ Ex

+ Excitation

- Si

- Signal

+ Si

+ Signal

ANALOGUE OUTPUT

Current output

Voltage output

GND

Shield and Protective ground

SERIAL CONNECTION

TxD ( RS232C )

RxD ( RS232C )

Ground ( RS232C )

SETPOINT CONNECTION

Digital Output 1

Digital Output 2

Com

Digital Outputs Common

POWER SUPPLY

24V

+24VDC

0VDC

FAA-27

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 5 of 21

Meanings of the positions of rotary switches;

Programming (Prog)

switch

Voltage output type run

(refer to page 9)

Current output type run

(refer to page 9)

Setpoint 1 adjustment

(refer to page 17)

Setpoint 2 adjustment

(refer to page 17)

Zero adjustment

(refer to page 11)

Gain adjustment with test weight

(refer to page 11)

Fast zero adjustment

(refer to page 13)

Fast gain adjustment with 20% test

weight of Maximum scale capacity

(refer to page 13)

Adjustment (Adj)

switch

Operation mode (Run)

Special Functions in “Fast Adjustment, “Setpoint

Adjustment”

LEDs

Annunciator LEDs ( Run, Output type, Error ).

Refer to chapter 9

Features

Minimized zero and span drifts due to its microcontroller technology and high

accuracy, very low temperature drift, 24 bits ADC and 16 bits DAC converters.

Long time stability and low temperature drifts eliminate the frequent

readjustment period.

Very easy and user friendly digital adjustment via rotary switches located on

the front of the instrument.

Programmable digital adaptive anti-vibration filters to minimize environmental

vibrations.

eCal- electronic calibration without weights and digital filter adjustment via

RS232C port and xFace PC software.

Fast calibration feature to reduce the adjustment time and to minimize

adjustment error.

Calibration at PLC does not require readjustment after changing instrument

because of matching in the production.

2 pcs free relay contact output for alarm or controlling valves, gate etc.

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 6 of 21

TECHNICAL SPECIFICATIONS

Analogue input range

0 mV to 20 mV

Min. input range

< 1 mV

Linearity

< % 0.01

Temperature drift

< 0.007 % FSR / ºC

Converters

24 bit Delta-Sigma ratiometric ADC with integral analog and

digital filters

16 bit very low drift DAC

Internal resolutions

16 000 000 counts ADC

External resolution

Analogue output changes up to 65000 steps

Calibration

With rotary switches in the front with any test load.

Fast calibration with 20% max.

Electronic calibration via PC.

Preadjusted instrument for calibration at PLC

Digital Filter

Programmable 3 step adjustable digital adaptive filter.

Analogue outputs

Current output for 0-20 mA and 4-20 mA or

voltage output for 0 –5 V and 0-10 V.

Max. cable length

300 meter

Max. load resistance

(current output)

500 Ω

Set point

2 pcs free programmable setpoints.

Digital Output

2 relay contacts for setpoints, 230 VAC or 30 VDC, 1 A.

Load cell excitation

5 VDC

Number of Load Cells

Up to 4 units of 350 or 12 units of 1100 (min. 85 )

Power supply

12 to 28 VDC 0.2 A

Operation Temperature

Between -10°C and +45°C at 85% RH max, non-condensing

EMC Immunity

Class E2

Enclosure

Polyamide, for DIN-rail mount, IP20

Dimensions

Front Width:22,5 mm, Front Length: 99 mm , Height:114,5mm

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 7 of 21

4. Installation and Commissioning

Recommendations

Warning:Please care the following warnings for designing the control cabinet which

will increase your system reliability.

The control cabinet should be designed so that instrument can operate safely.

The panel should be placed in clean area, if possible not getting direct sun light, with

a temperature between -10 ºC and +40 ºC, humidity not exceeding 85% non-

condensing. All external cables should be installed safely to avoid mechanical

damages.

FAA-27 instruments are very low level signal measuring instruments. To avoid

electrical noise, FAA-27 should be separated from the equipments that produce

electrical noise. Preferable use metal cabinet against radio frequency interference

and the cabinet shall be connected to ground against the electromagnetic

disturbances. Load cell cable and analog output cable trays must be separated from

others, if possible. If there are noise-generating equipments such as heavy load

switches, motor control equipments, inductive loads etc., please be careful against

the EMC interference in the cabinet. Connect parallel reverse diodes to the DC

inductive loads like relays, solenoids etc. to minimize voltage peaks on the DC power

lines.

All load cell and analogue output cables coming to the control cabinet shall be

shielded.

Warning: Control cabinet design and proper installation increases reliability and

performance of the instrument. Please do not forget that the instrument must be

powered off before inserting or removing any peripheral connector.

Follow the installation and commissioning steps described below carefully to prevent

unwanted results after installation.

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 8 of 21

4.1 Mechanical Installation

The place where you will use/install your instrument should be clean, not getting

direct sunlight if possible, with a temperature between -10ºC and +40ºC, 85%

maximum relative humidity non-condensing. Install the instrument on the DIN rail in

the cabinet.

The instrument mechanical drawing

4.2 Load Cell Connection

The load cell wiring should be made carefully before energizing to avoid damages of

the instrument and load cells. The input resistance of the load cells that you want to

connect should be more than 85 Ω.

Pin Name

Load Cell Cable

+Ex

+ Excitation

-Ex

-Excitation

+Si

+ Signal

-Si

-Signal

Shield

4.3 Analogue Output Connection

Only one of the analog output types can be used at the same time and has to be

selected in the setup type. Install the analog output measuring instrument for

adjustment, if need be.

FAA-27, Technical Manual, Rev. 1.1, June 2014

Page 9 of 21

Pin Name

Definition

Current Output

Voltage Output

GND

Shield

Current output connection

Voltage output connection

4.4 Changing the Analogue Output

FAA-27 sets its analog output according to the table below at power on. Turn the

programming switch and connect TxD and RxD pins as indicated in the table below

before power on the instrument to set analog output type and its signal level.

Analogue

Output Range

Prog. Switch Position

TxD & RxD pins

V / I LED

4 - 20 mA

Open circuited

0 - 20 mA

Short circuited

Off

0 - 10 VDC

Open circuited

Flash

0 - 5 VDC

Short circuited

Blinking

Indice

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