Siemens LMV5 Series Basic Documentation page 251

Siemens Building Technologies
HVAC Products
18.4 O2 trim control
18.4.1 Operating modes of O
The O trim controller or O
2
operating modes by setting a parameter.
Parameter:
O
2
conAutoDeac / auto deact)
Both the O
man deact
system operates along the parameterized ratio curves.
The ratio curves must always be adjusted such that there are
sufficient amounts of excess O
environmental conditions!
Only the O
O2-guard
have reached its operating temperature. If not, startup will be
prevented. If the O
connection with O
safety shutdown will take place, followed by a repetition if possible,
otherwise lockout.
Both the O
O2-control
startup, the O2 sensor must have reached its operating temperature.
If not, startup will be prevented. If the O
error occurs in connection with O
the O
2
repetition if possible, otherwise lockout.
Both the O2 trim controller and the O2 monitor are active (option
conAutoDeac
«automatic deactivation»). Startup takes place before the O2 sensor
has reached its operating temperature. O
activated only when the operating temperature has been reached and
the sensor test has been successfully completed. If the O
responds, or if an error occurs in connection with O
the O
2
controller and the O
The system operates along the parameterized ratio curves and this
parameter will be set to auto deact. The AZL5... indicates automatic
deactivation. The error code is maintained until O
manually deactivated or activated.
O trim control has automatically been deactivated and the system
2
auto deact
operates along the parameterized ratio curves (do not select this
system parameter). To deactivate the O
use parameter setting «man deact».
Also refer to subsection 18.4.4, Heating up the O2 sensor after «PowerOn».
Basic Documentation LMV51...
18 Addendum 4: LMV52... with O2 trim control and O2 module
trim controller / O
2
monitor can be deactivated or activated in various
2
Ctrl/Guard (man deact / O
trim controller and O
2
monitor is active. Prior to startup, the O2 sensor must
2
monitor responds, or if an error occurs in
2
measurement, the O
2
trim controller and the O
2
sensor, safety shutdown will take place, followed by a
module, the O sensor or the sensor test, both the O
2
monitor will automatically be deactivated.
2
monitor
2
-guard / O -control /
2 2
monitor are deactivated. The
2
, irrespective of
2 available
module or the O
2
monitor are active. Prior to
2
monitor responds, or if an
2
measurement, the O
2 2
trim control in operation is
2
measurement,
2
trim control is
2
trim controller / O
2
sensor,
2
module or
monitor
2
trim
2
monitor,
2
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CC1P7550en
01.10.2003