To Next PageTo Next Page
Need help?Do you have a question about the Siemens LMV37.400A2 and is the answer not in the manual?
General| Brand | Siemens |
|---|---|
| Model | LMV37.400A2 |
| Category | Control Unit |
| Language | English |
Overview of the LMV37.4... unit and its intended use.
Important safety instructions and warnings for handling and operating the LMV37.4... unit.
Guidelines and requirements for the correct mechanical installation and securing of the LMV37.4... unit.
Key considerations and procedures for electrical and mechanical installation of the LMV37.4... unit.
Details on low-voltage connections (SELV, PELV, FELV) for the LMV37.4... unit.
Guidelines for connecting flame detectors, ensuring signal integrity and safety.
Essential checks and procedures for commissioning the LMV37.4... system and its components.
Important considerations for setting parameters and configuring the air-fuel ratio control system.
List of relevant standards, directives, and certifications applicable to the LMV37.4... unit.
Information on unit handling for service, including fuse replacement procedures.
Details on the designed lifetime of the LMV3... burner management system.
Guidelines for the proper disposal of the unit in accordance with environmental regulations.
Overview of the LMV37.4... burner management system and its integrated components.
Specific information for Europe regarding flame detectors and operation modes with LMV37.4...
Specific information for North America regarding flame detectors and operation modes with LMV37.4...
General operation and parameterization of the burner management system via AZL2... or PC tool.
Summary of LMV37.4... product numbers, mains voltage, parameter sets, and flame detector compatibility.
Technical specifications for the LMV37.4... basic unit, including mains voltage, frequency, and safety class.
Specifications for terminal loading of inputs, including voltage, current, and contact recommendations.
Specifications for terminal loading of outputs, including nominal voltage, current, and power factor.
Accuracy specifications for the analog output and power output (X74.3).
Maximum permissible cable lengths for various connections to the LMV37.4... unit.
Requirements for cross-sectional areas of power lines and other cables connected to the LMV37.4...
Details on the AGV50... signal cable, including color, conductor, length, and supplier.
Environmental conditions (storage, transport, operation) for climatic, mechanical, temperature, and humidity parameters.
Information and specifications for different types of flame detectors used with the LMV37.4... system.
Technical details and operational characteristics of the ionization probe flame detector.
Cautionary notes and technical data references for UV-Flame detectors.
Specifications and notes for photoresistive detectors (QRB...), including threshold values.
Information on blue-flame detectors (QRC...), including flame intensity check and voltage operation.
Detailed dimensional drawings of the LMV37.4... unit, including all key measurements.
Overview of the key inputs and outputs of the LMV37.4... basic unit and their functions.
General conditions for displaying flame on AZL2... and parameter settings for flame detector selection.
Description of error codes and parameters related to loss of flame, extraneous light, and safety times.
Explanation of how the LMV37.4... checks flame detector inputs for short-circuits during operation.
Details on the safety loop input, its function, and associated error codes.
Description of the burner flange end switch input and its role in the safety loop.
Function of the external controller input for heat requests (ON/OFF).
Description of inputs for external controllers to manage stages or open/close functions.
Function of the air pressure switch input, including caution notes for OEM.
Details on the pressure switch input for valve proving on gas operation.
Description of pressure switch inputs for minimum gas/oil pressure and start release.
Information on setting parameters for the oil pressure switch test timing.
Function of pressure switch-max and POC inputs for gas and oil systems.
Description of the reset input for resetting or manually locking the basic unit.
Function of the alarm output for indicating lockout or start prevention.
Details on the fan motor contactor output for controlling the fan power.
Description of the fan continuous purging output connection.
Function of the ignition output for connecting ignition transformers or modules.
Description of outputs for connecting gas or oil fuel valves.
Function of the safety valve output for oil shutoff or liquefied gas.
Description of the output for indicating operation, connected parallel to the fuel valve.
Overview of the burner program sequence and how parameters adapt it to applications.
List of time parameters used to match fuel train characteristics to application requirements.
Details on the valve proving function for gas valves to detect leaks and prevent opening.
Procedure and diagram for valve proving using a separate pressure switch.
Impact of valve proving via pressure switch-min-gas on the program sequence.
Description of the lockout phase, its functions, and manual reset requirement.
Details on the safety phase, an intermediate step before lockout, and its dynamic duration.
Overview of special functions that can be activated during the burner program sequence.
Methods for resetting the system or manually locking it, including options via AZL2... and terminals.
Functionality for indicating start preventions via the alarm output and distinguishing from lockouts.
List and explanation of various conditions that can lead to start prevention.
Explanation of repetition counters for errors and their impact on lockout.
Conditions and parameters for starting without prepurging, as per EN 676.
Description of the gas shortage program and its interaction with valve proving.
How to use the program stop function to simplify burner settings and commissioning.
Details on the forced intermittent operation feature, which shuts down the unit periodically.
How electronic air-fuel ratio control manages low-fire shutdown when no heat is requested.
Explanation of connecting the fan motor for continuous purging and checking air pressure switches.
Procedure for verifying flame loss detection time for burner approval (TÜV test).
Illustrations and explanations of different fuel train configurations and operating modes.
Explanation of phase numbers and their relation to process data in sequence diagrams.
Sequence diagram and explanation for gas direct ignition operating modes.
Sequence diagram and explanation for gas pilot ignition 1 operating modes.
Sequence diagram and explanation for gas pilot ignition 2 operating modes.
Sequence diagrams for light oil direct ignition in multistage modes.
Explanation of symbols, parameters, and time assignments used in the sequence diagrams.
Details on the priority input for external heat requests via a contact.
Connecting external load controllers via contacts for modulating and multistage operation.
Connecting the LMV37.4... to building automation systems via the COM X92 port.
How to set manual output control via the display unit or the PC tool.
Description of the output used for setting curves and approaching the ignition point.
Connecting external load controllers using analog inputs for controlling burner output.
How the system automatically detects and selects available power sources based on priority.
Implementing emergency operation by utilizing load controller prioritization.
Switching to manual operation when external load controllers are not in use.
General principles of electronic air-fuel ratio control, actuator connection, and output regulation.
How actuators behave outside the running position, approaching different positions based on program phase.
Information on actuator running speed and VSD ramp speed adjustment.
Parameters for setting the no-load position for actuators and VSD.
Parameters for setting prepurging positions and speeds, including gas/oil activation.
Description of the ignition position and its parameterization.
Parameters for setting postpurging positions and speeds for actuators and VSD.
Operating principles and capabilities of modulating mode, including actuator and VSD control.
How air-fuel ratio curves are defined using 10 curvepoints and their assignment.
Information on running speed, maximum positioning angles, and speed changes between curvepoints.
Process of entering the running position after ignition and following defined curves.
How burner output is adjusted between stages in the running position.
Parameters for defining new low-fire and high-fire positions to restrict the modulation range.
Procedure for setting minimum and maximum output values after defining curve settings.
Explanation of multistage operation modes (2-stage, 3-stage) for oil burners.
Defining air-fuel ratio control curves via static output points and switch-on/off points.
Information on running speed for air actuators and VSD in multistage operation.
Detailed explanation of how the system adjusts output between stages, including switch-on/off points.
Process of changing from ignition position to the running position of stage 1.
How burner output is adjusted between stages in the running position.
Parameters for restricting modulation range for stages 1, 2, or 3.
System behavior when there is no more heat request, switching to low-fire and shutting down.
Crucial notes for setting the electronic air-fuel ratio control system and parameter responsibilities.
Information on connecting and operating actuators (fuel and air) with the LMV37.4... system.
Explanation of how actuators are driven by stepper motors and monitored by an optical incremental transducer.
Specifications for angles and angular ranges of relevant actuators.
Procedure for actuator referencing after power-on and at shutdown to ensure correct position feedback.
Details on reference travel types and parameter settings for unambiguous range determination.
How to select the direction of rotation for SQM3... actuators and fixed directions for SQN1... actuators.
How actuator positions are monitored using an optical incremental transducer and error detection bands.
Procedure for changing the error detection band for actuators requiring greater tolerances.
How forced travel is used to detect errors when actuators maintain the same position for long periods.
Monitoring the connecting line for open-circuit to ensure position feedback is received.
Methods to detect actuator mixup through appropriate mounting and reference point usage.
Steps for implementing actuator mixup detection, including parameterization and mechanical stops.
How VSD or PWM fan control is accomplished via DC 0-10 V interface and safety-related speed feedback.
How to activate the VSD or PWM fan in any of the available operating modes.
Control of the VSD via a voltage interface, including release contact requirements.
Control of PWM fans using the PWM voltage interface X64.3.
Ensuring safe separation for PWM fan control inputs/outputs and necessary power supplies.
Setting ramp times for acceleration and deceleration of PWM fan control and VSD.
Methods for acquiring fan speed using proximity switches and Hall generators.
How speed is acquired using an inductive proximity switch and sensor disk.
Requirements for acquiring speed via a Hall generator for safety-related applications.
How the LMV37.4... controls fan motor speed to the setpoint and potential control range limitations.
Monitoring fan speed for safety, including corrective actions and safety shutdown initiation.
Steps for parameterizing the VSD, including setting maximum frequency and ramp times.
Procedure for standardizing fan speeds between 0-100% for consistent signal handling.
Using the control path for fan motors with pneumatic air-fuel ratio control.
Information on EMC tests and compliance for VSDs used with the LMV37.4... system.
Description of terminals for VSD module X74 and PWM fan X74/X64.
Terminal assignment for the VSD module X74.
Terminal assignment for PWM fans connected via X74 and X64.
Details on the power output feature as an alternative to VSD control.
Ensuring safe separation for power output, necessitating external power supply.
Actual values, voltages, and curvepoints for modulating operation using power output.
Actual values, voltages, and curvepoints for 2-stage operation using power output.
Actual values, voltages, and curvepoints for 3-stage operation using power output.
Connecting a fuel meter to acquire the amount of fuel burnt.
Configuration steps for fuel meters, including types and pulses per volume unit.
Information on types of fuel meters compatible with the LMV37.4... system.
Parameterizing the number of pulses per volume unit for accurate fuel measurement.
How to read and reset accumulated fuel volume readings.
Continuous calculation of current fuel throughput and factors affecting it.
Configuring fuel throughput calculation based on connected fuel meter's pulse valency.
How to read current fuel throughput values from the service menu.
Requirement for assigning a unique burner identification for backup and restore operations.
Connecting the LMV37.4... to external systems like building automation.
How communication with BAC systems is achieved via COM X92 interface and Modbus.
Configuration settings for Modbus communication, including device address, baud rate, and parity.
Functionality of the ACS410 PC software for system operation, configuration, and parameter management.
Information on how the LMV37.4... stores and displays error history.
Subdivision of errors into classes based on the severity of the switch-off response.
Details on the structure of the error history, including current error state and deletion methods.
Notification and display of errors when the unit's lifecycle threshold is exceeded.
Crucial safety notes for preventing fire, explosions, and damage when using the AZL2... display and operating unit.
Overview of the AZL2... unit's display elements and the function of each button.
Explanation of the various symbols displayed on the AZL2... unit.
How to adjust the display brightness using a specific parameter.
Description of special functions like manual lockout and manual control of output.
Procedure for manually locking the basic unit using button combinations.
How to manually control the burner output via the display unit.
Setting the timeout for automatically leaving the parameter setting level.
How to create and restore backup data sets of unit settings using the AZL2... unit.
Steps for creating a backup data set, including parameters for reading backup information.
Step-by-step guide on how to perform a backup of the unit's settings.
Step-by-step guide on how to restore a backup data set to the unit.
Description of the standard display in normal operation and navigation to other levels.
How the unit is displayed when in standby mode.
Information on displays during startup/shutdown, including program phases.
Display of program phases and controlled components during startup.
Display showing the current program phase and its remaining running time.
A comprehensive list of all phase displays and their corresponding functions.
Explanation of how operating positions like 'Ignition point' and fuel stages are displayed.
How fault status messages, errors, and general information are displayed.
Display of errors and diagnostic codes when the unit is in lockout position.
Procedure for resetting the unit after an error occurs.
How to access info or service mode from the lockout state.
Display of error codes and diagnostic codes during a safety shutdown.
Display of events that do not lead to shutdown, showing error and diagnostic codes.
Display indicating a non-programmed or improperly parameterized unit.
Display indicating an open safety loop or burner flange contact.
Explanation of accessing different operational levels via button combinations.
How to navigate between normal, info, service, and parameter levels.
Accessing information about the basic unit and general operation.
How to enter the info level and navigate between parameters.
Examples of displaying information such as identification date and number.
Procedure for displaying the identification date parameter.
Procedure for displaying the identification number parameter.
Procedure for displaying and setting the burner identification.
Procedure for displaying and resetting the number of startups.
Procedure for displaying the total number of startups.
Indication that the end of the info level has been reached.
Accessing the service level for error information, error history, and basic unit data.
Procedure for entering the service level and navigating through service parameters.
Examples of displaying service values like number of faults and flame intensity.
Displaying the number of faults that have occurred.
Reference to section on viewing error history.
Displaying the flame intensity as a percentage.
Indication that the end of the service level has been reached.
Accessing and changing parameters, which requires a password.
Step-by-step guide on how to enter passwords for heating engineer and OEM.
Procedure for entering the burner's identification, similar to password entry.
Instructions for changing the heating engineer's password.
Instructions for changing the OEM's password.
General use of the parameter level for changing settings, especially for fuel train and air-fuel ratio.
Explanation of how parameters are assigned to different operational levels.
How to access and modify parameters that do not have an index and are displayed directly.
Detailed guide on setting parameter 208 (Program stop) for basic units.
How to access and modify parameters with an index that are not displayed directly.
Step-by-step guide for setting parameter 162 (Operating hours resettable).
Accessing and modifying parameters that have an index and are displayed directly.
Guide to setting parameter 501 for non-flame positions of the fuel actuator.
Accessing and modifying parameters with an index that are not displayed directly.
Procedure for accessing error history using parameter 701.
Detailed instructions for setting and commissioning air-fuel ratio curves.
Steps for initial commissioning and setting the operating mode on parameter level 400.
Guide to setting curvepoints P0 and P9 in modulating mode for various configurations.
Instructions for setting curvepoints P0 and P9 for pneumatic modulating modes.
Procedure for setting warm parameters for pneumatic modulating modes.
Steps for setting warm parameters in modulating mode, involving curvepoint adjustments.
How to edit individual curvepoints for fuel and air actuators in warm settings.
Procedure for interpolating curvepoints, allowing automatic recalculation of intermediate points.
Guide to setting curvepoints for multistage modes like 'Lo 2-stage' and 'Lo 3-stage'.
Procedure for setting warm parameters for 'Lo 2-stage' and 'Lo 3-stage' multistage modes.
Instructions for setting cold parameters for multistage modes without flame or actuator travel.
