Siemens LMV51.100C1 User Manual

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Building Technologies Basic Documentation LMV5... CC1P7550en
19 O2 trim control with LMV52 and PLL52 22.05.2018
19.5.2.2 O2 maximum value alarm
If the actual O2 value exceeds the O2 maximum value by > Time O2 Alarm, one of the
following reactions takes place, depending on the operating mode:
∂ In all O2 trim controller operating modes except conAutoDeac
Safety shutdown is initiated, followed by repetitions if possible, otherwise lockout.
∂ In the O2 trim controller operating modes conAutoDeac
If an error occurs, the LMV5 automatically switches the O2 Control operating mode
to auto deact
Parameter Gas: Time O2 Alarm
Oil: Time O2 Alarm
For the O2 maximum value alarm, the user can select the O2 MaxValue parameter or
the O2MaxCurve (only LMV52.4).
This is defined using the Type O2 MaxValue parameter:
∂ O2 MaxValue
The O2 MaxValue parameter is used
∂ O2MaxCurve
The O2 values at the ratio control curve that were measured when setting the O2
trim controller are used as O2 maximum alarm values.
Parameter Gas: Type O2 MaxValue (O2 MaxValue, O2MaxCurve)
Oil: Type O2 MaxValue (O2 MaxValue, O2MaxCurve)
Gas: O2 MaxValue
Oil: O2 MaxValue
19.5.3 Inactivation / deactivation of the O2 alarm
Attention!
The O2 minimum value and O2 maximum value alarms are inactivated /
deactivated in the following cases:
1. Inactivation of O2 minimum value alarm
(automatic reactivation by the LMV5 if required):
In auto deact O2 operating mode if the measuring signal is invalid (error in
measuring signal, no response from PLL52)
2. Deactivation of O2 maximum value alarm
(manual activation by the user required):
In man deact and auto deact O2 operating modes
3. Deactivation of O2 minimum value alarm
(manual activation by the user required):
In man deact O2 operating mode

Siemens LMV51.100C1 Specifications

General

Brand	Siemens
Model	LMV51.100C1
Category	Control Unit
Language	English