Siemens LMV 5 Series, Технические инструкции, Страница: 320 / 374

Technical Instructions LMV Series
Document No. LV5-1000
Section 10 Page 12 SCC Inc.
LMV52 Software Update: Version 0450 to 0480 (continued)
8. A parasitic effect in the QRI2 flame scanner during the reset phase leads to a short signal
pulse. Thus, flame evaluation during the reset is now delayed so the signal is ignored.
LMV52 Software Update: Version 0480 to 0510
The following updates were made with LMV52 software version 0510:
1. A new option for flame supervision via an external, safety-related flame safeguard.
2. Continuous pilot is available for fuel trains using a pilot. If activated, the pilot valve remains
open through phase 62.
3. A new calculation process is available for O
2
pre-control. The Type ofAirChange parameter
was enhanced to include the “ LambdaFact1” setting option.
4. When setting the O
2
setpoint curve, the minimum intervals accepted by the LMV52 have
been reduced as follows:
•
Interval between O
2
ratio control curve and O
2
setpoint curve: from 1% to 0.1%
•
Interval between O
2
setpoint curve and O
2
alarm curve: from 0.5% to 0.1%
5. In O
2
operating mode “ conAutoDeac ”, when the O
2
falls below the O
2
alarm value, the LMV5
initially operates along the ratio control curves. O
2
trim control is only deactivated
automatically once the NumMinUntilDeact repetition counter has elapsed . The minimum O
2
alarm remains active even once O
2
trim control has been deactivated.
6. Omission of the waiting time following interruptions to the power supply if the QGO20 cell
temperature is greater than 1274 °F [690 °C] on startup.
7. O
2
trim control behavior can be altered using the
O2TrimBehavior
parameter.
8. Limitations of the O
2
controller manipulated variable are now available via new parameters
O2MinManVariable and O2MaxManVariable .
9. Activation / deactivation of O
2
trim control via an external contact can be configured at input
X5-03.3 using parameter Config X5-03 .
10. The status of the O
2
controller can be displayed via data point State O2 Ctrl .
11. The O
2
maximum value alarm has been revised. It can now be the O
2
ratio control curve or
a set value. This is programmed via parameters Type O2 MaxValue and O2 MaxValue .
12. A new service timer for the O
2
sensor is now available. This can be adjusted via parameter
O2SensServTim and reset via parameter O2SensServTimRes .
13. In order to calculate the combustion efficiency, the supply air temperature sensor can now
be connected to input X60 as well as to input X87 on the PLL52 which was already available.
HOME