Honeywell Krom Schroder BCU 580 - Contents; Table of Contents

BCU 580 · Edition 11.15l 2
▼
= To be continued
Contents
Burner control units BCU 580 .......................1
Contents ............................................2
1 Application ........................................5
1.1 Examples of application ...........................9
1.1.1 Stage-controlled main burner with alternating
pilot burner ..................................................9
1.1.2 Stage-controlled main burner with permanent
pilot burner ................................................10
1.1.3 Two-stage-controlled main burner with
permanent pilot burner.....................................11
1.1.4 Modulating-controlled burner ......................12
1.1.5 Flame control using the temperature ...............13
1.1.6 PROFINET connection using bus module BCM .... 14
1.1.7 ON/OFF rotary impulse control ..................... 15
1.1.8 Modulating burner control ...........................17
2 Certification ......................................18
3 Function ......................................... 19
3.1 Connection diagram ..............................19
3.1.1 BCU 580..F1 with ionization control in single-
electrode operation .......................................19
3.1.2 BCU 580..F2.........................................20
3.1.3 BCU 580..F3..........................................21
3.1.4 Flame control........................................22
3.2 BCU 580 program sequence .....................23
4 Air control ....................................... 25
4.1 Capacity control ..................................26
4.1.1 BCU..F1/F2..........................................26
4.1.2 BCU..F3..............................................28
5 Valve proving system ............................ 29
5.1 Tightness test.....................................29
5.1.1 Test instant ..........................................30
5.1.2 Program sequence ...................................31
5.1.3 Test period t
P
........................................33
5.1.4 Opening time t
L
.....................................33
5.1.5 Measurement time t
M
...............................33
5.2 Proof of closure function .........................36
5.2.1 Program sequence ..................................36
6 BCSoft............................................37
7 Profinet .......................................... 38
7.1 BCU and bus module BCM ........................39
7.2 GSD file for PLC configuration . . . . . . . . . . . . . . . . . . . . 41
7.2.1 Modules for cyclic data exchange ................... 42
7.2.2 Indexes for acyclic communication .................48
8 Program step/status ............................ 49
9 Fault signalling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
10 Parameters ..................................... 54
10.1 Scanning the parameters........................58
10.2 Flame control ....................................58
10.2.1 Switch-off threshold of the flame amplifier .......58
10.2.2 Flame control ......................................59
10.2.3 High temperature operation .......................60
10.3 Behaviour during start-up .......................63
10.3.1 Burner 1 start-up attempts ........................63
10.3.2 Burner 2 start-up attempts ........................64
10.3.3 Burner application .................................65
10.3.4 Safety time 1 t
SA1..............................................68
10.3.5 Flame proving period 1 t
FS1
.......................68
10.3.6 Safety time 2 t
SA2..............................................69
10.3.7 Flame proving period 2 t
FS2
.......................69
10.4 Behaviour during operation .....................70
10.4.1 Restart..............................................70
10.4.2 Minimum operating time t
B
.......................73
10.4.3 Pilot burner .........................................73
10.5 Safety limits .....................................74
10.5.1 Safety time during operation....................... 74
10.6 Air control ........................................75
10.6.1 Capacity control.................................... 75
10.6.2 Running time selection ............................84
10.6.3 Running time .......................................84
10.6.4 Low fire over-run ...................................85