krom schroeder BCU 570 Operating Instructions Manual Download Page 9 | Manualshive

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A

L1

V1

V2

V3

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BCU 570

3,15AT

5AT

45

65

46

66

47

48

68

53

54

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56

57

58

49

50

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52

90°

➔

0°

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90°

67

13

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3

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5

7

38

37

IC 40

PE

19 18

16 15 14

12 11 10

8 7

5 4

2 1

A

AC

D

DC

M

mA

L

N

22 21 20

R..

GB-9

D

GB

F

NL

I

E

IC 40 connected to BCU 570..F

▷

Parameter 40 = 2.

▷

Set IC 40 to operating mode 27, see operating
instructions Actuators IC 20, IC 40, IC 40S.

3.15AT

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Summary of Contents for BCU 570

Page 1: ...ectrical interventions may only be carried out by qualified electricians Conversion spare parts All technical changes are prohibited Only use OEM spare parts Changes to edition 02 15 The following chapters have been changed Installation Connection diagram Commissioning Assistance in the event of malfunction Certification Contents Operating instructions D GB GB 1 03251317 Translation from the Germa...

Page 2: ...l unit 570 Series 570 Q W Mains voltage 120 V AC 50 60 Hz 230 V AC 50 60 Hz C0 C1 No valve proving system With valve proving system F1 F2 Modulating capacity control three point step IC 20 and IC 40 RBW interface or frequency converter U0 Ionization or UV control in case of operation with gas K0 K1 K2 Connection terminals none screw terminals spring force terminals Part designations 3 5 2 6 8 1 7 ...

Page 3: ...vertically end clamps are required e g Clipfix 35 by Phoenix Contact to prevent the BCU from slipping Install in a clean environment e g a control cabinet with an enclosure IP 54 whereby no condensation is permitted 1 Replacing the power module parameter chip card 1 Disconnect the system from the electrical power supply 2 3 Disengage the BCU from the DIN rail 4 5 6 Remove the old parameter chip ca...

Page 4: ...al motor protection or coupling contactor if required The limiters in the safety interlock linking of all the relevant safety control and switching equipment for the use of the application for example safety temperature limiter must isolate terminal 46 from the voltage supply If the safety interlock is in terrupted the display shows a blinking 50 as a warning signal and all of the BCU s control ou...

Page 5: ...6 66 47 48 68 53 54 55 56 57 58 49 50 51 52 ϑ N 0 6 x I N p u 2 PZL PZH 90 0 0 90 PZL PZ PDZ M 67 13 14 15 17 18 11 12 9 3 1 2 5 7 P69 P72 P70 P71 P73 38 37 V4 I Z Air min Air STM STL Gas min Gas max Connection diagram BCU 570 Legend see page 21 Legend ...

Page 6: ...er 04 0 3 15AT 5AT V1 V2 V3 65 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 PZL PZH 90 0 0 90 PZL PDZ M 67 13 14 15 17 18 11 12 9 5 7 P69 P72 0 P71 P73 38 37 V4 Z UV control UVS 1 5 6 10 Parameter 01 5 µA Parameter 04 1 60 F3 V1 V2 V3 66 68 53 54 49 50 51 52 67 13 14 15 17 18 11 10 12 7 P69 P72 P71 P73 38 37 9 F2 T2AH F1 T3 15AH FS FS P HT 9 12 UVS 1 2 3 7 6 5 Z UVC 1 Parameter 04 2 9 7 6 5 Z UVC ...

Page 7: ...0 M IC 20 PE S1 S2 90 0 0 90 BCU 570 3 15AT 5AT 65 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 90 0 0 90 67 13 14 15 17 18 11 12 9 5 7 38 37 S1 Min Max GB 7 D GB IC 20 connected to BCU 570 F1 Parameter 40 1 Continuous control via three point step controller 3 15AT ...

Page 8: ...tly connected to the control actuator V1 V2 V3 BCU 570 3 15AT 5AT 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 90 0 0 90 67 13 14 15 17 18 11 12 9 5 7 38 37 20 19 18 3 2 1 6 7 4 8 12 11 S3 S4 S10 OUT 0 90 0 90 90 0 IC 20 E S1 S2 5 17 IN OK R R PE A D A D R 1 2 3 4 5 6 ON µC 13 15 16 M PE L1 N S1 Min Max mA 3 15AT ...

Page 9: ... 52 90 0 0 90 67 13 14 15 17 18 11 12 9 5 7 38 37 IC 40 PE 19 18 16 15 14 12 11 10 8 7 5 4 2 1 A AC D DC M mA L N 22 21 20 R GB 9 D GB IC 40 connected to BCU 570 F1 Parameter 40 2 Set IC 40 to operating mode 27 see operating instructions Actuators IC 20 IC 40 IC 40S 3 15AT ...

Page 10: ... 0 90 L1 RBW COM HI LO AUTO V1 V2 V3 BCU 570 3 15AT 5AT 65 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 67 13 14 15 17 18 11 12 9 5 7 38 37 Continuous control via PLC N M F 0 90 L1 mA A D OUT RBW COM HI LO AUTO V1 V2 V3 BCU 570 3 15AT 5AT 65 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 67 13 14 15 17 18 11 12 9 5 7 38 37 PLC 3 15AT ...

Page 11: ...onnected to BCU 570 F2 Parameter 40 4 mA PDZ PZL M L1 DI 3 DI 2 DI 1 P 0 100 COM HI LO AUTO V1 V2 V3 BCU 570 3 15AT 5AT 45 65 46 66 47 48 68 53 54 55 56 57 58 49 50 51 52 67 13 14 15 17 18 11 12 9 5 7 38 37 PLC Target actual FC 3 15AT ...

Page 12: ...y indicates 00 If the display blinks fault reset the BCU by pressing the Reset Information button 3 Apply the start up signal to terminal 1 The display indicates A The air control valve moves to the position for minimum capacity The display indicates H0 The switch on delay time parameter P63 is active The display indicates 01 The fan run up time parameter P30 is active The display indicates A The ...

Page 13: ... been remedied remove the unit and return it to the manufacturer for inspection Faults Cause Remedy The 7 segment display does not light up Mains voltage is not applied Check the wiring apply mains voltage see type label 0 1 The display blinks and indicates 01 The BCU has detected an incorrect flame signal without the burner having been ignited extrane ous signal Direct the UV sensor exactly at th...

Page 14: ...s air ratio incorrect Flame not contacting burner ground as the result of excessively high gas or air pressure Burner or BCU not adequately grounded Short circuit or discontinuity on the flame signal cable Soiled UV sensor Remedy fault 1 0 The display blinks and indicates 10 Actuation of the remote reset input is faulty Too many remote resets More than 5 resets have been conducted within the last ...

Page 15: ...the BCU Reset the parameters to their original values using the BCSoft software Establish the cause of the fault to avoid repeat faults Ensure that the cables have been installed prop erly see page 4 Cable selection If the measures described above do not help remove the unit and return it to the manufacturer for inspection 3 2 The display blinks and indicates 32 Supply voltage too low or too high ...

Page 16: ...by remote reset Check voltage supply to terminal 3 Apply voltage to terminal 3 only for reset approx 1 second 5 3 The display blinks and indicates 53 The time between two starts is less than the min time timing cycle Comply with the min timing cycle tzmin tzmin s tVZ 0 6 tSA1 9 Example Pre ignition time tVZ 2 s Safety time 1 tSA1 3 s tzmin 2 0 6 3 9 12 8 s 8 0 9 4 9 9 9 5 9 6 9 8 8 9 8 8 8 6 8 7 8...

Page 17: ...l wiring of the air pressure switch Check voltage supply to terminal 48 Check the air pressure switch setpoint 2 3 8 4 6 5 7 9 The display blinks and indicates 2 3 4 5 6 7 8 or 9 The input signal for the air pressure switch has dropped out during start up operation at pro gram step X 02 to 09 Failure of the air supply at program step X Check the air supply Check the air pressure switch setpoint 2 ...

Page 18: ...acting H pursuant to ICE 60127 2 5 First reconnect the power module then recon nect the connection terminals and restart the system BCU see also page 12 Commis sioning 1 2 7 3 5 4 6 8 9 The display blinks and indicates 0 1 2 3 4 5 6 7 8 or 9 The signal for monitoring the min gas pressure terminal 49 has dropped out at program step X 00 to 09 Check the wiring Check the gas pressure A The display bl...

Page 19: ...alve is open Check that the proof of closure switch and valve function perfectly replace defective valves Reading off the flame signal fault messages and the parameters During operation display 08 information about the flame signal intensity the last 10 fault mes sages and the parameter values can be read off by repeatedly pressing the Reset Informa tion button Display Information F1 Flame signal ...

Page 20: ...time in Manual mode 0 Unlimited 1 5 minutes Pa ram eter Name Values 69 Function of terminal 51 0 Off 8 AND with emergency stop trm 46 9 AND with air min trm 47 10 AND with air flow monitoring trm 48 11 AND with gas max trm 50 12 AND with gas min trm 49 13 Max capacity position feedback IC 40 RBW 70 Function of terminal 65 0 Off 8 AND with emergency stop trm 46 9 AND with air min trm 47 10 AND with...

Page 21: ... parameters for BCU 570 C1 Pa ram eter Name Values 51 Valve proving system 0 Off 1 Tightness test before start up 2 Tightness test after shut down 3 Tightness test before start up and after shut down 4 Proof of closure function 52 Relief valve 2 V2 3 V3 4 V4 56 Measurement time Vp1 3 Time in seconds 5 25 in 5 s steps 30 3600 in 10 s steps 59 Valve opening time 1 tL1 2 25 Time in seconds Legend Rea...

Page 22: ...re cross section rigid max 2 5 mm wire cross section AWG kcmil min 24 wire cross section AWG kcmil max 12 Spring force terminals nominal cross section 2 x 1 5 mm wire cross section min 0 2 mm wire cross section AWG min 24 wire cross section AWG max 16 wire cross section max 1 5 mm rated current 10 A 8 A UL to be observed in case of daisy chain Environment Storage temperature 20 to 60 C 4 to 140 F ...

Page 23: ...de the OCU can be used to proceed through the sequence of operating steps OK Type Languages Order No OCU 500 1 D GB F NL E I 84327030 OCU 500 2 GB DK S N TR P 84327031 OCU 500 3 GB USA E P BR F 84327032 OCU 500 4 GB RUS PL H RO CZ 84327033 Certification Declaration of conformity We the manufacturer hereby declare that the product BCU 570 complies with the requirements of the listed Directives and ...

Page 24: ...SO 13849 1 Table 4 the BCU can be used up to PL e FM approved Factory Mutual FM Research Class 7610 Combustion Safeguards and Flame Sensing Systems Suitable for applications pursuant to NFPA 86 ANSI CSA approved Canadian Standards Association ANSI Z21 20 and CSA 22 2 UL listed Underwriters Laboratories UL 372 Standard for Limit Controls Eurasian Customs Union The product BCU 570 meets the technica...

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