Burner controls for the supervision of 1- or 2-stage gas or gas / oil burners of
small to medium capacity, operation, with or without fan in intermittent (26 pages)
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LME39… Gas burner controls Basic Documentation The LME39… and this Basic Documentation are intended for use by OEMs which integrate the burner controls in their products. Building Technologies Division CC1P7106en 08.12.2017...
Supplementary documentation Title Documentation Type of document LME… Burner control CC1Q7101 Range overview LME39… Burner control CC1N7106 Data Sheet 2/73 Building Technologies Division Basic Documentation LME39… CC1P7106en 08.12.20176...
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Preconditions for burner startup ..............26 Undervoltage ....................26 Controlled intermittent operation ..............26 Control sequence in the event of fault ............27 Resetting the burner control ................27 ...
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15.1.2.1. Display of program phases ................43 15.1.2.2. List of phase displays ..................43 15.1.3 Display of operating position ................. 44 15.1.4 Fault status messages, display of errors and info ......... 44 ...
Safety notes Warning notes To avoid injury to persons, damage to property or the environment, the following warning notes must be observed! Do not to open, interfere with or modify the unit! All activities (mounting, installation and service work, etc.) must be performed by qualified staff ...
Installation notes Always run the high voltage ignition cables separate from the unit and other cables while observing the greatest possible distance Do not mix up live and neutral conductors Install switches, fuses and earthing, in compliance with local regulations ...
Since the BC interface has no safe separation from mains voltage, the signal cable AGV50 must conform to certain specifications. Siemens has specified the signal cable AGV50 for use under the burner hood; refer to Technical data. When using other signal cables, it is not guaranteed that the required cable features will be available.
Connection BC interface OCI410 Connect the BC interface OCI410 without other extension with the USB interface at your PC, follow the example design below. ACS410 LME39... PC software OCI410 USB2.0 RJ11 7106z181e/0708 Figure 3: Connection BC interface OCI410 Connection interface OCI400... ...
Commissioning notes When commissioning the plant for the first time or when doing maintenance work, make the following safety checks: Safety check to be carried out Expected response Delivery state (factory setting): Burner startup with previously Lockout at the end of safety time ...
The electrical connections of the LME39 and the AGK11 comply with the requirements of EN 60335-2-102. EAC Conformity mark (Eurasian Conformity mark) ISO 9001:2015 ISO 14001:2015 OHSAS 18001:2007 China RoHS Hazardous substances table: http://www.siemens.com/download?A6V10883536 12/73 Building Technologies Division Basic Documentation LME39… CC1P7106en 1 Safety notes 03.02.2016...
1.9 Life cycle Burner controls has a designed lifetime* of 250,000 burner startup cycles which, under normal operating conditions in heating mode, correspond to approx. 10 years of usage (starting from the production date given on the type field). This lifetime is based on the endurance tests specified in standard EN 298. A summary of the conditions has been published by the European Control Manufacturers Association (Afecor) (www.afecor.org).
Basic unit The housing is made of impact-proof, heat-resistant and flame-retarding plastic. It LME39… is of plug-in design and engages audibly in the base Burner controls LME39... and plug-in base AGK11.6 are silver-grey (RAL7001) The housing accommodates the –...
3.2 Indication and diagnostics Multicolor indication of operational status and fault status messages via multicolor signal lamp in the lockout reset button Forwarding of operational status messages, fault status messages and full service information via - BCI communication via integrated jack RJ11 to display and operating unit AZL2... or via additional BC interface OCI410 to PC software ACS410 - UDS communication at interface diagnostic mode (UDS), with additional optical interface OCI400..., via integrated signal lamp at lockout reset button, between...
Type summary (other types on request) The product nos. given below applies to the LME39… without plug-in base and without flame detector. For ordering information on plug-in bases and other accessories, refer to Ordering. Times in seconds Article no. Type (P259) (P260) (P228)
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Note on parameterization: Use the AZL2… or ACS410 to always set the exact value of the required time (multiples of increments of 0.147 seconds, 0.294 seconds or 4.851 seconds). When parameterizing minimum or maximum times, the possibility of a ±7% tolerance must be taken into consideration. For minimum values: The value to be parameterized must be at least 7% greater.
Accessories (to be ordered separately) 5.1 Connection accessories for small burner controls AGK11.6 Article no.: BPZ:AGK11.6 Gray plug-in base for connecting the LME39 to the burner plant. Refer to Data Sheet N7201 Cable holder AGK66 Article no.: BPZ:AGK66 For plug-in base AGK11. Refer to Data Sheet N7201 Cable holder AGK65 Article no.: BPZ:AGK65...
5.3 Display and operating units Display and operating unit AZL21.00A9 Article no.: BPZ:AZL21.00A9 Detached unit, choice of mounting methods, 8-digit LCD, 5 buttons, BCI interface for LME39, degree of protection IP40. Refer to Data Sheet N7542. Display and operating unit AZL23.00A9 Article no.: BPZ:AZL23.00A9 Detached unit, choice of mounting methods, 8-digit LCD, 5 buttons, BCI interface for LME39, degree of protection IP54.
5.5 Actuators Actuator SQN3 Refer to Data Sheet N7808 Actuator SQN7 Refer to Data Sheet N7804 Actuator SQN9 Refer to Data Sheet N7806 20/73 Building Technologies Division Basic Documentation LME39… CC1P7106en 5 Accessories (to be ordered separately) 08.12.2017...
5.6 Others Valve proving system LDU11 (only LME39.100) Designed to check the tightness of shutoff valves in connection with gas burners and gas devices. In the event of inadmissible leakage, the system prevents the burner from starting up. Refer to Data Sheet N7696 RC unit ARC 4 668 9066 0 Article no.: BPZ:ARC466890660 For the supervision of ionization currents in networks with...
Technical data 6.1 General unit data Mains voltage - LME39.xxxx1 AC 120 V - LME39.xxxx2 AC 230 V Mains frequency 50...60 Hz Power consumption 12 VA External primary fuse (Si) Max. T10H250V to IEC 60127-2 Recommendation: T6.3H250V to IEC 60127-2 Mounting position Optional Input current at terminal 12...
6.2 Signal cable AGV50... display BCI Signal cable Color white Unshielded Conductor 4 x 0.141 mm² with RJ11-plug Cable length - AGV50.100 Location Under the burner hood (extra measures required for compliance with SKII EN 60730-1) 6.3 Environmental conditions Storage DIN EN 60721-3-1 Climatic conditions...
6.4 Flame supervision with ionization probe At mains voltage UN = AC 120 V ¹) UN = AC 230 V ¹) Detector voltage between ionization probe and ground AC 50...120 V AC 115...230 V (AC voltmeter Ri 10 M) Switching threshold (limit values): Switching on (flame on) (DC ammeter Ri 5 k) DC 1.5 µA...
6.5 Flame supervision with AGQ3.xA27 and flame detector QRA... Only in connection with LME39.xxxx2 (AC 230 V)! Mains voltage AC 230 V +10%/-15% 50...60 Hz 6% Mains frequency Perm. cable length from QRA... to Max. 20 m, unshielded AGQ3.xA27 (lay separate cable) Perm.
Functions 7.1 Preconditions for burner startup Burner control must be reset All contacts in the line are closed, request for heat No undervoltage Air pressure switch or CPI must be in its no-load position, or DBR2 is connected ...
7.4 Control sequence in the event of fault If lockout occurs, the outputs for the fuel valves, the burner motor and the ignition equipment immediately deactivated (<1 second). Cause Response Mains failure Safety shutdown, followed by restart on restoration of mains voltage Voltage below undervoltage threshold Safety shutdown...
7.6 Limitation of repetitions (can be parameterized) If no flame is established at the end of safety time, or if the flame is lost during operation, a maximum of 3 repetitions per controlled startup can be performed via control thermostat/pressurestat, or else lockout will be initiated. Counting of repetitions is restarted each time a controlled startup via control thermostat/pressurestat takes place.
Operation, indication, diagnostics 9.1 Operation Lockout reset button is the key operating element for resetting the burner control and for activating/deactivating the diagnostics functions. The multicolor signal lamp in the lockout reset button is the key Yellow indicating element for visual diagnostics and interface diagnostics. Green Both (lockout reset button/signal lamp) are located under the transparent cover of the lockout reset button.
9.3 Diagnostics of cause of fault After lockout, the red signal lamp is steady on. In that condition, visual diagnostics of the cause of fault according to the error code table can be activated by pressing the lockout reset button for more than 3 seconds. Pressing the lockout reset button again for at least 3 seconds activates interface diagnostics.
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Error code table Red blink code of Alarm at Possible cause signal lamp (LED) terminal 2 blinks No establishment of flame at the end of safety time - Faulty or soiled fuel valves - Faulty or soiled flame detector - Poor adjustment of burner, no fuel - Faulty ignition equipment 3 x blinks Air pressure switch faulty...
10 Inputs and outputs/internal connection diagram/program sequence of LME39.100... 10.1 Program sequence Shutdown Standby Startup Operation t10 t1 Phase number AZL2... 21 24 74 10 oP:P1 oP:P2 Operation unit parameter number 259 224 LED permanent LED flashing Terminal Function / inputs No.
10.3 Application examples Attention! The connection diagrams shown are merely examples which must be adapted in the individual case depending on the application! Control of actuators of 2-stage or 2-stage modulating burners. Controlled prepurging with high-fire air volume. For information about actuators: SQN3...
10.4 Application LME39.100... with LDU11... Before startup of burner In the case of plants without vent pipe to atmosphere 7106a10e/1011 LDU11... Atmosphäre Figure 13: Application examples with LDU11... Valve proving is started each time the system is switched on, with connection of terminal 3, after controller ON or after lockout ...
11 Inputs and outputs/internal connection diagram/program sequence of LME39.400... 11.1 Program sequence Shutdown Standby Startup Operation Phase number AZL2... 21 30 74 10 oP:P1 oP:P2 Operation unit parameter number LED permanent LED flashing Terminal Function / inputs SB / GP No.
11.2 Inputs and outputs/internal connection diagram C control RESET R / W 7106a07e/0708 Figure 15: Internal diagram 11.3 Application example Warning! The connection diagram shown is merely an example which must be adapted in the individual case depending on the application! Recommendation: ...
12 Legend I, II, III Cams actuator Prepurge time t1´ Purge time Preignition time Postignition time (P257+0.3 seconds) Interval between ignition OFF and release of fuel valve 2 Postpurge time Specified time for air pressure signal Programmed opening time for actuator Programmed closing time for actuator 2nd safety time Flame detection time...
Operation via the AZL2… 14.1 Description of the unit/display and buttons Function and operation of unit versions AZL21… and AZL23… are identical. /reset h min s Figure 20: Description of the unit/display and buttons Button Function Buttons A and F: Parameterized function - For switching to parameter setting mode P (press simultaneously)
14.2 Meaning of symbols on the display Fault status message Flame present Valve controlled Ignition controlled Fan motor controlled Oil preheater on Heat request from controllers Parameter setting mode Info mode Service mode h min s Actuator closing Actuator opening Unit of current display Figure 21: Meaning of display 14.3...
Operation 15.1 Normal display Normal display is the standard display in normal operation, representing the highest menu level. From the normal display, you can change to the info, service or parameter level. 15.1.1 Display in standby mode Unit is in standby mode. h min s 15.1.2 Display during startup/shutdown...
15.1.3 Display of operating position Display oP: P1 stands for stage 1. The display following oP is unit-specific. h min s Display oP: P2 stands for stage 2. The display following oP is unit-specific. h min s 15.1.4 Fault status messages, display of errors and info 15.1.4.1.
Menu-driven operation 16.1 Assignment of levels The various levels can be accessed via different button combinations. The parameter level can only be accessed by entering a password. Standby >1 s Change to operating mode >8 s Info level >3 s <8 s automatic Service level...
Info level 17.1 Display of info level until InFo appears. Press /reset /reset 1…3 s When releasing , you are on the info level. /reset The info level displays information about the basic unit and operation in general. Note! On the info level, you can press to display the next or the previous parameter.
17.2 Display of info values 17.2.1 Identification date The identification date described below corresponds to the creation date for the program sequence and cannot be changed by the user. On the left, parameter 102: is displayed flashing. On the right, ._._ is displayed. Example: 102: ._._ h min s Pressing the...
17.2.3 Identification of burner On the left, parameter 113: is displayed flashing. On the right, ._._ appears. Example: 113: ._._ h min s … Pressing the button (1 3 seconds) and /reset releasing it when ._._ flashes displays the burner Default setting: burnEr Id /reset h min s...
17.2.4 Number of startups resettable On the left, parameter 164: is displayed flashing. On the right, characters ._._ appear. Example: Parameter 164: ._._ h min s … Pressing the button (1 3 seconds) and /reset releasing it when ._._ flashes displays the number /reset of startups (can be reset).
17.2.5 Total number of startups On the left, parameter 166: is displayed flashing. On the right, characters ._._ appear. Example: Parameter 166: ._._ h min s … Pressing the button (1 3 seconds) and /reset releasing it when ._._ flashes displays the total number of startups.
Service level The service level is used to display information about errors including the error history. Note! When on the service level, you can press to display the next or the previous parameter. Instead of pressing , you can also press for <1 second.
18.2 Display of service values 18.2.1 Error history Refer to section Parameter with index, with or without direct display/Example of parameter 701: Error history. Note! Can be deleted for service (refer to chapter Parameter list)! Refer to chapter Error code list! 18.2.2 Mains voltage Parameter 951: appears flashing.
Siemens supplies the burner control LME39… with the factory settings according to Type summary. The OEM can change the Siemens default settings to meet its own requirements. With the LME39…, the burner control’s characteristics are determined primarily through parameterization. Every time the unit is recommissioned, the parameter settings must be checked.
19.1 Entering the password Note! The OEM password must consist of 5 characters, that for the heating engineer of 4 characters. Press button combination to display CodE. >1 s h min s When releasing the buttons, 6 bars appear the first of which flashes.
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As a confirmation of correct entry, PArA appears for a maximum of 2 seconds. h min s Note! For the entry of passwords or burner IDs, the following numerals and letters can be used: 55/73 Building Technologies Division Basic Documentation LME39… CC1P7106en 19 Parameter level 08.12.2017...
19.2 Changing the heating engineer’s password Note! For the OEM to change the heating engineer’s password, c: requires entry of the OEM password! Press button combination to display 000: Int. >1 s Pressing the button takes you to /reset parameter 041 heating engineer's password.
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Pressing the button takes you to /reset parameter 041 heating engineer's password. Continue in the parameter End of the parameter level level to the next parameter –End- group 100: 57/73 Building Technologies Division Basic Documentation LME39… CC1P7106en 19 Parameter level 08.12.2017...
19.3 Changing the OEM’s password Parameter 042: flashes. to go to level c: for password changes. Press /reset Letter c: for confirmation appears flashing. Proceed as described in section Entering the password and enter the former password. After entry of the last character, the password must be /reset confirmed by pressing /reset...
20 Operating variants of the parameters The parameters stored in the burner control LME39… can be displayed and changed on the parameter level. Press button combination to display 000: Int. , select the parameter group 100: With >1 s PArA. , select the parameter group 100: With PArA.
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Alternative 1: Discard the change! h min s Alternative 2: Adopt the value! /reset Press to return to editing mode. /reset The value set will be adopted. Note: To detect display errors, the value appears one h min s place shifted to the right. Display: Value 3.822 h min s Back to the previous...
20.2 Parameters without index, with no direct display 20.2.1 Example of parameter 224 (max. time until air pressure on) on the parameter level Press to select specified time for air pressure signal air pressure switch. Display: Parameter 224: flashes, characters ._._ do not.
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Alternative 1: Discard the change! h min s Alternative 2: Adopt the change! /reset Press to return to editing mode. /reset The value set will be adopted. Note: To detect display errors, the value is shown again, h min s but shifted one place to the right.
20.3 Parameters with index, with or without direct display 20.3.1 Example of parameter 701 (actual error) on the service level Refer to chapter Error code list! to select parameter 701. Press Display: Parameter 701. flashes, index 01: and error code 4 do not. h min s On the left, the current error 701.
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Press to go to the display mode. /reset Display: Value 000305 h min s Press to return to the index. Display: Parameter 701. does not flash, index 02: flashes, characters ._._ do not flash. h min s To the next index Back to the previous index When this display appears, you have reached the end of the index level within parameter 701..
21 Error code list Error code Clear-text Potential cause Loc: No flame at the end of safety time No establishment of flame at the end of safety time - Defective or soiled fuel valves - Defective or soiled flame detector - Poor adjustment of burner, no fuel - Defective ignition equipment Loc:...
22 Parameter list 22.1 LME39.100... Parameter Parameter Edit Value range Increment Default setting Password level Password level number Min. Max. reading from writing from level level Internal parameters Heating engineer’s password (4 characters) Edit xxxx xxxx OEM’s password (5 characters) Edit xxxxx xxxxx...
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Parameter Parameter Edit Value range Increment Default setting Password level Password level number reading from writing from level Min. Max. level Error history Current error: 01: Error code Read only Service 02: Startup counter reading 999999 Error history former 1: 01: Error code Read only Service...
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22.2 LME39.400... Parameter Parameter Edit Value range Increment Default setting Password level Password level number reading from writing from level Min. Max. level Internal parameters Heating engineer’s password (4 characters) Edit xxxx xxxx OEM’s password (5 characters) Edit xxxxx xxxxx General Identification date Read only...
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Parameter Parameter Edit Value range Increment Default setting Password level Password level number reading from writing from level Min. Max. level Error history Current error: 01: Error code Read only Service 02: Startup counter reading 999999 Error history former 1: 01: Error code Read only Service...
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Index A Flame supervision with ionization Ancillary unit AGQ3.xA27 ..25, 40 probe ..........24 Application examples ..... 34 Functions ........26 Assignment of levels ...... 45 G AZL2 ..........15 General unit data ......22 B I Basic unit ......... 14 Identification date ......
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Operation via the AZL2 ....41 S Operation, indication, diagnostics 29 Safety notes ........7 Operational status indication ..29 Service level ........51 P Signal cable AGV50 display - BCI.. 23 Parameter level ....... 53 Special functions ......42 Parameter list ........
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List of figures Figure 1: Correct wiring of neutral conductors! ............... 8 Figure 2: Connection display and operating unit AZL2 ........... 9 Figure 3: Connection BC interface OCI410 ..............10 Figure 4: Connection interface OCI400................ 10 ...
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