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P. 7 / 12 

 

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

 

vor00161

 

 

 

 
 

Before starting the power supply 230V AC (optional 115V AC) and release signal input via process safety chain has to be 
connected directly to the CBF(F)-B1 control box according to supplied electrical drawings. Input of safety chain is charged 
by load of ignition transformer an the connected gas valves. The load for air valves and for the CBF(F)-B1 control box is 
charged from terminal X2.1.  
 
For burners in FLOX mode a CBFF-B1 control box has to be used. Additionally the fail save inputs for the switching signals 
for Flame and FLOX mode from the fail save FLOX temperature monitoring system has to be connected to the CBFF-B1 
control  box.  To  disengage  FLOX  mode  an  active  signal  level  (230V  AC  L1-level  optional  115V  AC)  at  the  FLOX  input  is 
necessary and the furnace temperature must be surely above 850°C. 
In  this  case  the  input  fur  Flame  mode must be disabled. On the other hand when the temperature falls below 850°C the 
FLOX input has to be disabled and the Flame input has to be enabled. The switching must be done 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 site. The unit is pre-wired and tested 
for functionality prior to delivery.  An electrical schematic is located on the inside of the box lid.  Each box is marked with an 
individual serial number, located on the side of the box.  
On the lid two push-buttons, ON/OFF and Reset/Info, are mounted below the 2 digit display.  These buttons are also used 
for manual burner control.  A fault schedule for failure code interpretation is inserted into a pouch on the lid as well. 
Activation and feed-back is according to data transmission handling (p. 4/5) from master to control boxes 
 
 
 
 

Before start-up of FLOX burner, the connectors and signals of FLOX mode and Flame mode have to be checked ex-
actly and the settings have to be tested for correct functionality with c l o s e d  gas supply – in case of wrong connec-
tion:

 

explosion hazard

 

 

 

Fig. 5: Connection diagram CBF-B1 with Profibus

 

 

Hardware connection CBF(F)-B1 :

 

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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