Flintec FAA-27 Manuel d'utilisateur télécharger pdf (Page 19)

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

Page 18 of 21

7. Operation

There are 3 LEDs and 2 rotary switches on the front panel of FAA-27. The rotary

switches are being used for adjustment as described in chapter 4.4 and the LEDs

have different meanings in operation and setup type as indicated below.

Analogue

Output Range

Prog. Switch

position

Adj. Switch

position

TxD & RxD

pins

V / I LED

(after power

on)

4 - 20mA

Open circuited

0 - 20mA

Short circuited

Off

0 - 10VDC

Open circuited

Flash

0 - 5VDC

Short circuited

Blinking

The status of the LEDs in the operation type is given in the table below. Refer to

chapter 9 in case of the Err LED turns on.

The analogue output signal also gives information about the status of the system and

the weighing process to inform PLC as:

Condition

4-20mA

output

0-20mA

output

0 – 10V

output

0 – 5V

output

Operation

Programming

The weight is over the range

( Over signal to PLC )

24mA

11V

5,5V

The weight is under the range

(Under signal to PLC )

0mA

-4.0V

“Error” signal to PLC

0mA

“ADC is out of operating range” error to

PLC

24mA

11V

5,5V

1 2 ... 14 15 16 17 18 19 20 21 22

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Flintec FAA-27 Manuel d'utilisateur Page 19

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