Lamtec ETAMATIC, Manual, Page: 44 / 136

43
6 O2-Control
6.10.2 Calling up O
2
Controller Text Messages
Switch display to O
2
trim
6.11 Commissioning
6.11.1 Setting the Correction Range and the Correction Mode
The correction value (control signal) transmitted to the electronic compound is 0…100% with
a resolution of 0.1%.

0% corresponds to maximum excess air, 100% to minimum excess air. Factory setting is a
neutral value of +60% to -40%. This means that the control range in the direction of excess
air is 60% and in the direction of air deficiency it is 40%. The main focus of this base setting
is that contamination of the burner and the boiler during the operational period would result in
an increase in the installation's flow resistance. Thus a larger control range in direction excess
air could be an advantage.
If another correction mode is selected via parameter 437, the base setting also changes at the
same time:
Calling up the base setting (only when burner stationary):
6.11.2 Available Correction Modes
Correction type 1 is used when correction is applied to a linear control element, e.g. to the fre-
quency converter’s setpoint for adjusting the combustion air blower’s speed. The correction is
directly added to or subtracted from the setpoint.

Correction mode: Effect to the setpoint axis
press key 1 "RESET"
press key 15
press key 11 "ENTER" to call up the text messages
press key 11 "ENTER" again

back
In Correction Mode Base Settings
+ 50% .... - 50% 50,0 %
- 50 % .... + 50 % 50,0 %
+ 60 % .... - 40 % 60,0%
- 60 % .... + 40 % 60,0%
0 % ....- 100 % 0,0%
- 100 % ..... 0 % 100,0%