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Profibus DP – CBF-B1/CBFF-B1 Burner Control Box 

 

vor00161

 

 

 
 

 

 

   

 

 

PROPERTIES 

APPLICATION RANGE

 

WS  CBF-/CBFF  burner  control  boxes  with  Profibus  DP 
combine essential control components such as flame relay, 
ignition transformer, manual and auto operation, as well as 
status  display  in  a  compact  metal  housing.  Mounted  near 
individual burners they are designed for continuous as well 
as intermittent operation. 
Two models are available:  
 

(CBF-B1*)

   (Control  Box  Flame-Profibus)  for  Rekumat

®

-

burners in flame mode only 

(CBFF-B1*)

   (Control  Box  FLOX-Flame-Profibus)  for  Re-

kumat

®

-burners in flame mode,  FLOX

®

 mode 

or FLOX

®

-Flame mode 

 
The control boxes include extensive diagnostic capabilities 
for  ease  of  start-up,  maintenance  and  trouble  shooting.  
The built in two-digit display can visualize program status, 
flame  signal  strength  and  device  parameter  settings.    In 
manual mode it is possible to start burners step-by-step.   
A  PC  or  laptop  computer  can  be  connected  to  individual 
control  boxes  via  an  optical  interface  cable.  WSSoft  en-
ables user access to device parameters as well as detailed 
diagnostic and data logging functions. WSSoft and the in-
terface cable are optional features.    
Substantial  savings  in  engineering-,  installation-  and 
commissioning  costs  can  be  achieved  when  utilizing 
Profibus capabilities.  A two wire bus system communicates 
all burner related control signals and status information be-
tween a central process control unit (e.g. SPS) and decen-
tralized CBF/CBFF control boxes. 
Power supply and safety relevant signals such as interlocks 
and FLOX/flame release signals can be hardwired directly 
to the control boxes (see Fig. 1).  
Individual  control  boxes  are  connected  to  the  bus  system 
via a separate plug connector, which has two terminals for 
incoming and outgoing bus wires.  Control boxes at the end 
of a bus system may be terminated by means of an easily 
accessible switch, enabling a termination resistor.

 

 

*) – B1  with Profibus DP       ®  registered trademark of WS GmbH

  Standard-Hardware  with  integrated  flame  relay  and  cus-

tomizable  Software  in  a  cast  aluminum  housing 
(200x200x110mm). Protection rating IP54. 

  Connection terminal for power supply 230V 50/60 Hz (op-

tional 115V AC). 

  Works with grounded or ground free grid. 

  Release signal input 230V AC (optional 115V AC) via proc-

ess safety interlock (load for ignition transformer and con-
nected solenoid valves are present). 

  Ignition transformer optional inside control box or external 

mount. 

  Dynamic  self  supervision  with  adjustable  sensitivity  of 

flame relay strength and flame relay safety times. 

 Flame supervision via flame rod (1 or 2 electrodes) or UV 

probe 

  Intermittent or constant operation (only with ionisation) 

  Configurable failure response (e.g. reset, multiple reset, 

  air purge after reset) 

  Air volume supervision via delta-p switch. 

  Configurable control parameters (Min. On and Off times, 

  air valve lag time) 

  Configurable air valve control with air valve closure in case 

of fault 

  Cooling  air  utilizing  combustion  air  valve  or  optional  addi-

tional cooling air valve via Profibus cooling signal. 

  Profibus  DP  interface  incl.  Connector  and  configurable 

Profibus address switches includes GSD file. 

  Profibus DP control (remote reset, heat demand signal, air 

purge, cooling). 

  Profibus DP burner status outputs. 

  Program  status,  ionization  current  and  fault  displayed 

(LED) 

  Manual operation for burner tuning and diagnosis 

  Manual  reset  button  on  control  unit  housing  (Reset-/Info 

button) 

  Access to burner fault information, diagnostics and statisti-

cal information (cont. tally of faults, operating hours, burner 
on  times,  ignition  attempts  etc.)

 

for  service  and  mainte-

nance via optical interface cable and WSSoft. 

  POC function (proof of closure) for main valve switch (pa-

rameterizeable) 

 

Additional features of CBFF-B1-control box:

 

 

  Failsafe inputs for activation of FLOX/Flame mode with in-

tegrated gas valve switching FLOX/Flame. 

  FLOX gas valve can be connected. 

  Input  for  supervision of air purge and combustion air flow 

in FLOX mode via delta-p switch. 

 
 
 
 

Decentralized  Burner  Control  Box  in  a  compact 
metal housing for WS-REKUMAT

-Burners in flame 

mode (CBF-B1) and FLOX

-Flame mode (CBFF-B1) 

with Profibus DP 

Picture 1 

 

 WS CBF-/CBFF burner control box 

Содержание CBF-B1

Страница 1: ...th integrated flame relay and cus tomizable Software in a cast aluminum housing 200x200x110mm Protection rating IP54 Connection terminal for power supply 230V 50 60 Hz op tional 115V AC Works with grounded or ground free grid Release signal input 230V AC optional 115V AC via proc ess safety interlock load for ignition transformer and con nected solenoid valves are present Ignition transformer opti...

Страница 2: ...signal strength In order to reduce electromagnetic interference it is required to use shielded wire e g Lapp Unitronic order 2170 220T or Siemens order 6XV1830 OEH10 Shield must be diligently fastened to ground terminals of connected devices and po tential equalization between multiple devices may be required To further reduce risk of interference keep bus wires separate from other wiring Data wir...

Страница 3: ...s with red and green wires it has been established that green wire be connected to A and red wire be connected to B Incoming wires connect to 1A 1B outgoing wires connect to 2A 2B Wire shield must be sufficiently connected to ground terminal refer to applicable guides of the manufacturer of the Profibus con nectors Fig 3 Control box dimensions CBF F B1 Supplier ident 0x05DB ASIC Type SPC3 SYNC FRE...

Страница 4: ...ctor switches within the Profibus control box Picture 2 Picture 2 Profibus address selectors Following tables showing data transmission between master and slave CBF B1 CBFF B1 Tab 2 Output byte Master CBF F Bit Output byte AB0 0 Remote reset 1 Start heat demand 2 Cooling 3 Air purge 4 5 6 7 Tab 3 Input bytes CBF F Master Bit EB0 EB1 EB2 EB3 0 Operation burner Manual mode Status byte 1 Fault burner...

Страница 5: ... box Limitation is implemented to prevent continuous resetting in case of a bus failure Local reset will re enable remote reset During operation the 7 segment display will show the current program status Flame signal strength and other parameters will be displayed by repeatedly pressing the Reset Info button Should a fault occur the CBF CBFF will terminate operation and display a flashing fault co...

Страница 6: ...s valve and after the safety period the switch must have left the shut position proof of closure POC acc NFPA 86 3 Air purge after reset The larger parameter 13 20 is relevant if burner starts with the heat demand signal In normal mode the time for air purge from field 20 is active The burner will start up when command heat is set in mode air purge xx sec and afterwards it will heat for the minimu...

Страница 7: ...within 1 sec otherwise a fault signal FF blinking will be caused The supplied connector for Profibus bus cables included has to be installed according to electrical drawing p 3 Profibus version reduces wiring as only power supply and safety interlocks 230V must be run to the box in addition to the bus ca ble Control cables for the burner components are pre installed and only require hook up on sit...

Страница 8: ... load current per input approx 3 mA Max switching cycles 1 000 000 Ambient temperature 20 to 60 C dew formation not permitted Protection rating IP 54 according EC 529 Weight approx 5 kg Profibus connection via Variosub Profibus 9 pin connector Sub D female male counter connector avai lable as option Housing made of cast aluminum with removable flange plate max 2 cable grips M20x1 5mm for power sup...

Страница 9: ...ted for qualified personnel under continuous monitoring of faulting burner Gas and air adjustment must be according to values provided on test certificates In case of a fault burner control unit will close gas valves and display will flash a fault code After several unsuccessful reset attempts the combustion chamber must be purged with air to remove any combustible mixtures CBF control boxes can o...

Страница 10: ...e fluctuations ex haust restricted or closed up distance recuperator to inner tube incorrect dis tance cross in radiant tube missing igni tion and supervision cables run in same conduit with other cables defective gas lance nozzle defective or plugged gas lance defective combustion chamber air flow correct UV probe defective quartz glass broken or covered with soot combustion chamber back pressure...

Страница 11: ...Flame control signals short circuit may cause this Check respond time 1 sec check voltage after fault repair system must be reset Attention FLOX Flame control signals are safety relevant be very careful while repairing risk of explosion 51 flashing Faulty fuse F1 short circuit in valve or ignition circuit safety interlock in terrupted Check ignition transformer and solenoid valves exchange fuse 3 ...

Страница 12: ... device error send to vendor for evaluation Power switch turned off Control functions not available when box is not turned on press 0 1 button to power box up Pb flashing Profibus data transmission disturbed CBF cannot communicate with bus master Bus wires broken interrupted bus wires switched in connectors A and B termi nals switched insufficient shielding in correct system termination activate t...

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