Burner control.                        

Flynn burner safety device - IBA 421/F:       
The IBA 421/F is a microprocessor based flame detector device, which uses the ionization principle to detect flame. The IBA has two outputs, one for the gasvalve of the burner, and one for an electronic igniter. It also has a pushbutton input for manual on/off/reset control, and two LED indicators (red and green) to indicate the burner status.

Three Iba's and a Iba control panel front.

Remote control
The IBA can be remote controlled by a Zone Capacity Controller (TBA 411). The IBA can communicate with such a host device with a serial communication bus. The IBA can accept on/off/reset commands from this host device and status information is sent back to this
host device. Manual control with the pushbutton is still possible if the IBA is connected to a host.

Iba control panel front.

SRC.                                         

The SRC-501 is a remote control for multi burner systems. Via the SRC-501 up to 10 standard burner safety devices (Burner robots) can be switched on/off by a serial link. Any type of burner safety device like Brahma, Honeywell, Pactrol or Kromschröder, etc. is supported by the SRC-501. The serial link is a multi-drop type so up to 250 SRC's can be connected on one communication bus. Applied with Flynn advanced oven control systems, series 400 and 500, it will show its maximum performance.

Zone control.                           

The TBA 411 is a Zone Energy Controller for multi-burner belt ovens.
Basically it controls temperature by modulating the gas pressure for the burners. If the set temperature can not be reached by modulating the gas pressure, because the gas pressure reaches its operating limits, it will adjust the number of burners lit, in order to get the gas pressure back in its operating range. This so called "Burner Management" prevents the situation where the number of burners lit does not meet the required heat output, and the modulated pressure is stuck at its minimum or maximum. The TBA is suitable for all types of temperature sensors, like PT-100, Thermocouple, Infrared, RTD-wire, etc.
The TBA 411 communicates through the SRC 501 with all the burners in its zone by a 3 wire communication bus. Another communication bus provides the link to the Central Control Panel (CCP). In the normal operating mode the TBA 411 controls the burners in its zone, and the Central Control Panel controls all TBA 411's on the oven.

Tba control panel front.

Tba computer and Tba control panel front.

Central Oven control.             

The CCP 441 (Central Control Panel) is designed for multi burner tunnel ovens using the SRC 501 Switching Remote Control and Flynn TBA 411 zone temperature controllers. The CCP is the operator interface of the burner and temperature control system. Together with the BakeView program the operator has a full overview of the actual burner statuses, actual zone temperatures and actual bake time. This
relieves the operator from the following tasks:

In order to switch on or off the burners at the right time, the CCP has three internal burner profiles stored in memory:

The CCP is used to modify burner profiles, set zone temperature set-points and set a bake time set-point. A set of burner profiles, temperature set-points and bake time set-point is called a recipe. The CCP is capable of storing up to 50 recipes.

IOX-start sequencer.               

The IOX 471 (I/O eXtender) is designed to extend the facilities to control a tunnel oven from a central desk. Although it can be used as a separate start-up sequencer the greatest advantage can be obtained when used in combination with the Flynn CCP 441. The IOX is capable starting up 7 channels in an user defined sequence. 4 Functions are determined the other 3 are auxiliary channels to be specified by the customer. The IOX is designed for the automatic start-up sequence of a direct gas fired tunnel oven. The automatic start-up works as follows. Push the automatic key and remain it pushed while pushing the start key. Now the display shows Strt (= Start). Now you can release the buttons. The start sequence is programmable. Of course the GAS SYSTEM never starts if the OVEN BELT is not running, the EXHAUST reports are failing (purche time completion) or at a failing leakage test:

After the EXHAUST output is activated it takes some time till the gas system is activated. This has to do with gas leakage tests and/or purche time. If the IOX activates an output the green LED above that output button starts blinking. If the report comes to the IOX that the switching on procedure succeeded the LED lits steady and the IOX will switch on the next channel.
If the startup sequence is completed the main display switches off.

BakeView.                                

BakeView is an innovative PC-control system for tunnel ovens. Compatible with any tunnel oven, BakeView completes Flynn's oven control range which encompasses burner-management, gap-handling and averaging (zone)temperature measurement through RTD-wire (2-20 meter).
With the development of the BakeView data-recording and data-control software program, Flynn has satisfied the bakery industry's demand for a PC-oven-control system. BakeView is a Real-time Oven Management System based on the Supervisory Control and Data Acquisition (SCADA) principle. Running under Microsoft Windows, BakeView visualizes all relevant production data online and enables
users to control the various parameters by "mouse-control".
BakeView monitors and controls the following production data online:

All above mentioned parameters are stored by BakeView in its trending program HistoryView, this information can be recalled at any time and printed out in daily reports graphical and statistical.
The program is self-adjustable for tunnel ovens with 1-10 zones.

You can download a demonstration copy here:                                 

System structure.                    

For the system structure, which has been explained in the above information, take a look at the picture.