Kromschroder FCU 500 - Contents; Table of Contents

FCU 500, FCU 505 · Edition 02.17 2
▼
= To be continued
Protective system controls FCU 500, FCU 505 ......1
Contents ............................................2
1 Application ........................................5
1.1 Application examples ..............................8
1.1.1 ON/OFF rotary impulse control .......................8
1.1.2 Modulating burner control ..........................10
1.1.3 Safety limits (LDS) for modulating burner control ...11
1.1.4 Flame control using the temperature ...............12
1.1.5 Furnace and zone control ...........................13
2 Certification ......................................14
3 Function ..........................................15
3.1 Connection diagram ..............................15
3.1.1 FCU 500 .............................................15
3.1.2 FCU 505 .............................................16
3.1.3 Assignment of connection terminals ................17
3.2 Program sequence................................19
3.2.1 FCU 500..F0.........................................19
3.2.2 FCU 500..F1, FCU 500..F2..........................20
3.2.3 FCU 505..F1, FCU 505..F2 ...........................21
3.3 Animation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4 Temperature monitoring......................... 23
4.1 High temperature operation with safety
temperature monitor function (STM function) .......24
4.1.1 With integrated STM ................................24
4.1.2 With external STM...................................25
4.1.3 With integrated and external STM ..................25
4.2 Maximum temperature monitoring with
(flue gas) safety temperature limiter (STL/FSTL
function) ..............................................26
4.2.1 With integrated STL/FSTL..........................26
4.2.2 With external STL/FSTL ............................26
5 Air control ........................................27
5.1 Controlled air flow ................................28
5.2 Capacity control ..................................29
6 Furnace zone control .............................31
7 Valve proving system ............................ 33
7.1 Tightness control..................................34
7.1.1 Test instant...........................................35
7.1.2 One test volume between 2 gas solenoid valves ....36
7.1.3 One test volume for system tightness ...............39
7.1.4 Two test volumes for system tightness .............. 42
7.1.5 Large test volumes with reduced testing time ......46
7.2 Test period t
P
..................................... 48
7.2.1 For one test volume V
p1
between 2 gas solenoid
valves ......................................................48
7.2.2 For one test volume V
p1
for system tightness .......48
7.2.3 For two test volumes for system tightness (V
p1
+
V
p2
) ........................................................49
7.2.4 Extended valve opening time 1 t
L1
..................50
7.2.5 Measurement time t
M
...............................53
7.3 Proof of closure function ..........................57
8 BCSoft........................................... 58
9 Fieldbus communication via Ethernet . . . . . . . . . . . 59
9.1 FCU and bus module BCM ...................... 60
9.2 Configuration, planning ..........................61
9.2.1 Profinet/Device master data file (GSD) ..............61
9.2.2 Modbus TCP..........................................61
9.2.3 Modules/Registers for process data................ 62
9.2.4 Device parameters and statistics . . . . . . . . . . . . . . . . . . . 68
10 Program step/status ........................... 69
11 Fault signalling ................................. 70
12 Parameters ......................................74
12.1 Scanning the parameters........................79
12.2 Safety limits .....................................79
12.2.1 Emergency stop....................................79
12.2.2 High gas pressure protection ......................80
12.2.3 Low gas pressure protection.......................80
12.2.4 Low air pressure protection .........................81
Contents