Flintec FAA-28 Bedienungsanleitung

FAA-28

Analog Amplifier

Technical Manual

Flintec GmbH

Bemannsbruch 9

74909 Meckesheim

GERMANY

www.flintec.com

FAA-28, Technical Manual, Rev.1.1.0 February 2022

Page 1 of 21

Table of Contents

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

2. Front View, Features and Specifications....................................................... 3

3. Installation and Commissioning..................................................................... 6

3.1 Mechanical Installation .......................................................................................... 7

3.2 Load Cell Connection............................................................................................. 7

3.3 Analogue Output Connection................................................................................ 8

3.4 Changing the Analogue Output............................................................................. 9

3.5 Serial Port Connection........................................................................................... 9

3.6 Commissioning....................................................................................................... 9

4. Adjustments................................................................................................... 10

4.1 Adjustment with Rotary Switches........................................................................10

4.2 Fast Adjustment to Nominal Output Range.........................................................12

4.3 eCal Electronic Adjustment Via xFace Software.................................................12

4.4 Adjustment (eCal) With PLC.................................................................................13

4.5 Testing the Scale Performance ............................................................................15

5. Setpoints ........................................................................................................ 16

5.1 Setpoint Connection..............................................................................................16

5.2 Setpoint Adjustment..............................................................................................16

5.3 Adjustment to the Load on the Scale...................................................................16

5.4 Adjustment by Measuring the Analog Output.....................................................16

6. Operation Mode ............................................................................................. 17

7. Programming With xFace Software Over RS232 ........................................ 18

7.1 Installation of xFace Software ..............................................................................18

7.2 xFace Software......................................................................................................18

8. Trouble Shooting........................................................................................... 20

FAA-28, Technical Manual, Rev.1.1.0 February 2022

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-28, Technical Manual, Rev.1.1.0 February 2022

Page 3 of 21

2. Front View, Features and Specifications

High speed analog load cell transmitter FT-28 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 reduces commissioning and service times.

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 the 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 FAA-28 is shown below.

Pin Name

Definition

LOAD CELL CONNECTION

+ Ex

+ Excitation

- Ex

- Excitation

+Se

+Sense

-Se

-Sense

+ Si

+ Signal

- Si

- Signal

Shield and Protective ground

ANALOGUE OUTPUT

Current output

Voltage output

GND

SERIAL CONNECTION

TxD ( RS232C )

RxD ( RS232C )

Ground ( RS232C )

Zeroing input (0V)

Zeroing input (+24V)

SETPOINT CONNECTION

Digital Output 1

Digital Output 2

Com

Digital Outputs Common

POWER SUPPLY

24V

+24VDC

0VDC

FAA-28

FAA-28, Technical Manual, Rev.1.1.0 February 2022

Page 4 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.

•1 zeroing input and 2 free relay contact outputs for alarm or controlling valves,

gate etc.

FAA-28, Technical Manual, Rev.1.1.0 February 2022

Page 5 of 21

TECHNICAL SPECIFICATIONS

Analogue input range

-18 mV … +18 mV

Min. input range

< 0.8 mV

Linearity

< % 0.01

Temperature drift

< 0.005 % FSR / ºC

Converters

24 bit Delta-Sigma ratiometric ADC with integral analog and

digital filters, high EMC immunity

16 bit very low drift DAC

Internal resolutions

16 000 000 counts ADC

External resolution

Analogue output changes up to 60000 steps

Output update rate

Up to 800 conversions per second

Calibration

With rotary switches in the front with test load.

Fast calibration with 20% of max. weighing range

Electronic calibration via PC.

Preadjusted instrument for calibration at PLC

Digital Filter

Programmable 9 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

(voltage output)

500 Ω

Set point

2 free programmable setpoints.

Digital Output

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

Digital Input

1 opto-isolated input for zeroing, 12 … 28 VDC, 10mA

Load cell excitation

5 VDC

Number of coad cells

Up to 8 units of 350 or 18 units of 1100 (min. 43 )

Load cell connection

4- or 6- wire technique

Power supply

12 … 28 VDC, 0.2 A

Operation Temperature

-15°C …+55°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-28, Technical Manual, Rev.1.1.0 February 2022

Page 6 of 21

3. 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 -15 ºC and +55 ºC, humidity not exceeding 85% non-

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

damages.

FAA-28 instruments are very low level signal measuring instruments. To avoid

electrical noise, FAA-28 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-28, Technical Manual, Rev.1.1.0 February 2022

Page 7 of 21

3.1 Mechanical Installation

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

direct sunlight if possible, with a temperature between -15ºC and +55ºC, 85%

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

the cabinet.

The instrument mechanical drawing

3.2 Load Cell Connection

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

the instrument and load cells. In 4-wire installations the sense and excitation pins

with the same polarity should be short circuited at the connector side. If you have

junction box, use 6 wire cable between FAA28 and the junction box, and short circuit

these pins at junction box for better performance. The input resistance of the load

cells that you want to connect should be more than 43 Ω.

Pin Name

6 Wire Load Cell

Connection

4 Wire Load Cell

Connection

+Ex

+ Excitation

+Se

+ Sense

Short circuit to + Excitation

-Ex

-Excitation

Short circuit to - Excitation

-Se

-Sense

- Excitation

+Si

+ Signal

-Si

-Signal

- Signal

Shield

FAA-28, Technical Manual, Rev.1.1.0 February 2022

Page 8 of 21

3.3 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, e.g. multimeter.

Pin Name

Definition

Current Output

Voltage Output

GND

Shield

Current output connection

Voltage output connection

FAA-28, Technical Manual, Rev.1.1.0 February 2022

Page 9 of 21

3.4 Changing the Analogue Output

FAA-28 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

You can also set the analog output type after power on as;

•Turn the programming switch to the analog output type (to V or I position)

•Connect or disconnect TxD and RxD pins according the table above to set the

output range

•Turn the adjustment switch to the position. After 2 seconds turn in back to

the “0“- position (if the instrument is powered on before)

The analogue output type can be followed by the V/I LED on front of the instrument

after running it (refer to table above ) .

After set up the analog output of the instrument according to the table above go to

the next step.

3.5 Serial Port Connection

3.6 Commissioning

Double check the following issues before energizing the instrument.

•Check Mechanical installation, grounding, load cell connection and power

supply connection

•Check the analogue output set up described in chapter 4.4

•The analogue output cabling should be done for the same analogue output

type

•The adjustment (Adj) rotary switch shall be at “0“ - position

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