223
8
CO/O
2
Control
Deactivating CO control depending on the O
2
value
For a description, see chapter
NOTICE
This function is only available via CMS Remote Software.
8.10.6 Checking the Combustion-related Limit Values
NOTICE
With O
2
trim is it essential to ensure that the burner burns safely and stably at maximum cor-
rectional intervention (0 % and 100
%), taking into account all environmental influences and
in every burner firing-rate range.
To do this, transverse the correction value both to 0 % and to 100
% at different firing-rate val-
ues (for CMS Remote Software see chapter
8.10.7 Set and Optimise the CO Response Threshold on LT3-F
The basis for CO regulation is a digital signal
CO greater/less than threshold value.
This signal is formed in the LT3-F and transferred to the burner controller via the LAMTEC
SYSTEM BUS (LSB).
1. Run the burner to a firing-rate between base fire and half fire.
2. Change the electronic ratio towards less air and/or more fuel (correction values
100%)
until the CO edge is detected; if necessary, increase the correctional range again.
Alternatively, you can keep it regulated at the CO edge. You must not change the firing-
rate for this purpose (MANUAL burner firing-rate controller). On the display of the CMS,
the signal dynamics must rise continuously.
NOTICE
If this display value of CMS reaches -32 in case of air reduction (display of Item 2 = – and Item
4 = 32) and +52 or +54 ( in case of air increase (display of Item 2 = + and Item 4 = 52 or 54),
the CO regulation has detected the CO edge and the optimisation point is saved.
Repeat at another firing-rate point.
Fig. 8-14 ’Settings’ menu in the LT3-F
Can only be set in access level 2!
CO
e
trigger threshold. Switching threshold of
the CO
e
detection for LAMTEC CO/O
2
regu-
lation. Evaluation of the signal dynamics.
Settable in a range from 0 ... 100 %.
Factory setting: 40 %
< 40% trim becomes more sensitive
> 40% trim becomes less sensitive
Содержание CMS
Страница 1: ...www lamtec de Sensors and Systems for Combustion Engineering Manual Combustion Management System CMS...
Страница 2: ......
Страница 42: ...41 4 CMS Components 4 2 5 Terminal Assignment Fig 4 9 AEC TPS 230 VAC or 120 VAC terminal assignment...
Страница 131: ...130 7 Operating Control and Displays 7 1 5 5 Deleting Curves Delete firing rate curve...
Страница 142: ...141 7 Operating Control and Displays Accessing channel information AL1 Fig 7 12 GUI6xx channel information...
Страница 148: ...147 7 Operating Control and Displays Channel configuration AL1 Fig 7 18 Channel configuration...
Страница 154: ...153 7 Operating Control and Displays Accessing the CO O2 settings AL2 Fig 7 24 CO O2 settings menu...
Страница 157: ...156 7 Operating Control and Displays Fig 7 27 System CRCs menu...
Страница 162: ...161 7 Operating Control and Displays Fig 7 32 IP setting menu...
Страница 163: ...162 7 Operating Control and Displays 7 2 8 User Settings Accessing the display settings Fig 7 33 Display settings menu...
Страница 164: ...163 7 Operating Control and Displays Accessing the language settings AL1 Fig 7 34 Language settings menu...
Страница 166: ...165 7 Operating Control and Displays Fig 7 35 Installation...
Страница 167: ...166 7 Operating Control and Displays Fig 7 36 Installation...
Страница 176: ...175 7 Operating Control and Displays Fig 7 49 Loading a protected dataset into the device...
Страница 198: ...197 7 Operating Control and Displays 1 Digital inputs 2 Digital outputs 3 PLC Signals 4 Analogue measurement values...
Страница 202: ...201 7 Operating Control and Displays Replacing a Module Fig 7 81 Module replacement menu...
Страница 271: ...270 10 Maintenance 6 Close the window Connection between PC and CMS is established Indication of the con nected CMS...
Страница 272: ...271 10 Maintenance How to update the firmware in the CMS AL2 1 Open the menu Firmware update 2 Prepare firmware update...
Страница 274: ...273 10 Maintenance Activating the Debug Data 1 Start CMS Remote Software 2 Set device online 3 Show debug data...
Страница 276: ...275 10 Maintenance 3 Restart CMS to complete the update...
Страница 282: ...281 12 Appendix 12 5 EU Declaration of Conformity...
Страница 283: ...282 12 Appendix...