Siemens LAE10 User manual

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
7781
Flame Safeguards LAE10
LFE10
Flame safeguards for burners with intermittent operation

The LAE10 is used for the supervision and indication of oil flames

The LFE10 is used for the supervision and indication of gas and oil flames

Supplementary Data Sheets for flame detectors, refer to N7712 and N7713

For control units LEC1 for continuous operation, refer to Data Sheet N7761
The LAE10 / LFE10 and this Data Sheet are intended for use by OEMs which
integrate the flame safeguards in their products!
Use
Flame safeguards for oil burners and oil units with or without a fan in
accordance with DIN EN 60730-2-5:2005 and DIN EN 230:2005
Flame safeguards for gas burners and gas-fired appliances with or without a fan in
accordance with DIN EN 60730-2-5:2005 and DIN EN 298:2004

Note!Donot use for new designs.
LAE10 For the supervision of oil flames
Flame supervision with silicon photocell detector RAR9
LFE10 For supervision of gas flames and luminous or blue-burning oil flames
Flame supervision with flame detector QRA or ionization probe
CC1N7781en
01.08.2016
Building Technologies Division

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Use (cont´d)
General Both types of flame safeguards are used primarily in conjunction with LEC1 control
units on the following applications:
Dual-supervision of burners / supervision of the main flame or of the ignition and
main flame by 2 identical or different types of detectors

Supervision of forced draft oil / gas burners / supervision of the flame
with different types of detectors, depending on the operating mode
Multiflame supervision / plants with several burners whose flames must be
supervised individually by one or several detectors, whose startup and
supervision, however, should or must be carried out centrally and simultaneously
by only 1 burner control

The flame safeguards can also be used in connection with other types of burner
controls provided the given combination and selected connection circuit do not
impair the burner control’s safety functions

The flame safeguards are also used as flame indication units in combustion
plant with manual startup
Warning notes
The avoid injury to persons, damage to property or the environment,
the following warning notes must be observed!
It is not permitted to open, interfere with or modify the units!
All activities (mounting, installation and service work, etc.) must be performed by
qualified staff. If this is not observed, there is a risk of loss of safety functions or
a risk of electric shock

For safety reasons –self-test of flame supervision circuit, etc. –at least one
controlled shutdown is required every 24 hours. If this is not observed, there is
arisk of loss of safety functions

Before making any wiring changes in the connection area, completely isolate the
plant from mains supply (all-polar disconnection). Ensure that the plant cannot be
inadvertently switched on again and that it is indeed dead. If not observed, there is
a risk of electric shock hazard

Ensure protection against electric shock hazard by providing adequate
protection for the flame safeguard´s connection terminals. If this is not observed,
there is a risk of electric shock
Each time work has been carried out (mounting, installation, service work, etc.),
check to ensure that wiring is in an orderly state. If this is not observed, there is
arisk of loss of safety functions or a risk of electric shock

Fall or shock can adversely affect the safety functions. Such units must not be put
into operation, even if they do not exhibit any damage
The ionization probe does not offer protection against electrical shock hazard.
The mains-operated ionization probe must be protected against accidental
contact. If this is not observed, there is a risk of electric shock

An ignited UV tube is a source of UV radiation! In case of flame supervision by
means of flame detectors, the detectors must be placed such that there is no
direct visual contact between them. If this is not observed, there is a risk of
loss of safety functions
Engineering notes
Ensure that the drop out delay time of relay «d»does not exceed 50 ms (also refer to
«Connection examples», 7781a02).
2/15
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01.08.2016

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
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Mounting notes
The relevant national safety regulations must be complied with

The flame safeguards can be mounted in any position directly on the burner, in
control panels, or on the front of a panel
There are 2 types of plug-in bases available, designed for cable entry from the
front, the side or below. 2 earth terminals provide looping facilities for the earth
connections of other burner plant components such as ignition transformers (the
flame safeguards themselves are double-insulated!)
Installation notes
Always run the high-voltage ignition cables separately while observing the greatest
possible distances to the unit and to other cables
Do not mix up live and neutral conductors
Electrical connection of the detectors
It is important to achieve practically disturbance- and loss-free signal transmission:
Never run the detector cable together with other cables

–Line capacitance reduces the magnitude of the flame signal

–Use a separate cable

Ionization probe does not provide protection against electrical shock hazard

Locate the ignition electrode and ionization probe such that the ignition spark
cannot arc over to the ionization probe (risk of electrical overloads)
Observe the maximum permissible lengths and shielding of the detector cables
(refer to «Technical data»)
Locate and adjust the detector such that only the flame to be supervised will
be detected
Protect the UV cell adequately against UV sources emitted by halogen lamps,
welding equipments, special lamps, ignition sparks, high energy x-rays and
gamma rays
3/15
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Standards and certificates
Only in combination
with the flame detector
Applied directives:
Directive for gas appliances
Directive for gas-fired appliances (only LFE10)
Directive for pressure devices
Electromagnetic compatibility EMC (immunity) *)
2006/95/EC
2009/142/EC
97/23/EC
2004/108/EC
*) The compliance with EMC emission requirements must be checked after the flame safeguard is
installed in equipment
Compliance with the regulations of the applied directives is verified by the adherence to
the following standards / regulations:
Automatic burner control systems for oil burners DIN EN 230
Only LFE10: DIN EN
Automatic burner control systems for burners and appliances 298:2004
burning gaseous or liquid fuels
Automatic electrical controls for household and similar use DIN EN 60730-
Part 2-5: Particular requirements for automatic electrical burner 2-5
control systems
The relevant valid edition of the standards can be found in the declaration
of conformity!
EAC Conformity mark (Eurasian Conformity mark)
ISO 9001:2008
ISO 14001:2004
OHSAS 18001:2007
China RoHS
Hazardous substances table:
http://www.siemens.com/download?A6V10883536
With
LEC1…
LAE10
●
●
●
●
---
●
---
LFE10
●
●
●
---
●
●
●
Life cycle
Flame safeguards 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 230 / EN
298. A summary of the conditions has been published by the European Control
Manufacturers Association (Afecor) (www.afecor.org).
The designed lifetime is based on use of the flame safeguards according to the
manufacturer’s Data Sheet. After reaching the designed lifetime in terms of the number
of burner startup cycles, or the respective time of usage, the flame safeguards is to be
replaced by authorized personnel.
* The designed lifetime is not the warranty time specified in the Terms of Delivery
4/15
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Disposal notes
The flame safeguards contain electrical and electronic components and must not be
disposed of together with household waste.
Local and currently valid legislation must be observed.
Mechanical design
Special features LAE10
Special features LFE10
Flame
supervision
The flame safeguards are of plug-in design and consist of power supply section, flame
signal amplifier, flame relay, an auxiliary relay for controlling the flame detector or the
flame simulation test, and a flame indication lamp located in the unit cover behind a
viewing window.
The electrical circuit is intrinsically safe in connection with LEC1 control unit –is tested
in respect of proper functioning each time the burner is started up. The plug-in bases –
like the housing –are made of impact-proof and heat-resistant plastic. For illustrations
of the plug-in bases and other notes, refer to «Dimensions».
Automatic light simulation test by increasing the sensitivity of the amplifier during the
burner off and the purging times of the LEC1 control unit control.
Automatic testing of the flame detector by increasing the operating voltage of the UV
tube during the burner off and the purging times of the LEC1 control unit.
Flame detector
Data Sheet
QRA2, QRA10
N7712
QRA4
N7711
RAR9
N7713
Ionization probe
Flame supervision by making use of the electrical conductivity of the flame in
conjunction with the rectifying effect is only possible with gas and blue-flame burners.
Since the flame signal amplifier responds only to the DC component of the flame signal
(ionization current), a short-circuit between flame detector and functional earth cannot
simulate a flame signal.
Type summary
When ordering, please give complete type reference.
Flame safeguard is delivered without plug-in base; order these separately (refer to
«Accessories»).
Flame safeguard
For the supervision of oil flames with silicon photocell detectors RAR9...
Article no.
Type
AC 220…240 V
BPZ:LAE10
LAE10
AC 110 V
BPZ:LAE10-110V
LAE10-110V
For the supervision of gas / oil flames with flame detector QRA or ionization probe
Article no.
Type
AC 220…240 V
BPZ:LFE10
LAE10
AC 110 V
BPZ:LFE10-110V
LAE10-110V
5/15
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
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Accessories (must be ordered separately)
Flame detector
Plug-in base Low plug-in base (refer to «Dimensions»)
AGK410413450 Article no.: BPZ:AGK410413450
10-pole screw terminals
5 cable entries
High plug-in base (refer to «Dimensions»)
AGK410490250 Article no.: BPZ:AGK410490250
10-pole screw terminals
With removable front
6 cable entries, 4 of which with Pg11 thread
6/15
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01.08.2016
UV flame detector QRA2
Refer to Data Sheet N7712
UV flame detector QRA10...
Refer to Data Sheet N7712
UV flame detector QRA4...
Refer to Data Sheet N7711
Ionization probe
Supplied by thirds
Silicon photocell detectors RAR9
Refer to Data Sheet N7713

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Technical data
General unit data
Mains voltage
AC 220 V –15 %...AC 240 V +10 %
AC 100 V –15 %...AC 110 V +10 %
Mains frequency
50...60 Hz ±6 %
Prefuse (external)
Max. 10 A (slow)
Power consumption
4.5 VA
Perm. contact rating
Max. 2 A
Degree of protection
IP40, with appropriate cable entry
Mounting position
Optional
Cross sectional areas that can be
connected to AGK4
Terminal 1...10
Min. 0,75 mm²
Max. 1,5 mm²
Auxiliary terminals N, PE, 11 and 12
Solid wire or stranded wire with ferrule
Min. 0,75 mm²
Max. 1,5 mm²
Solid wire or stranded wire with ferrule (when
connecting 2 solid wires or stranded wires per
terminal, same cross-sectional areas must be
used)
Weight
LAE10
LFE10
Without plug-in base
Approx. 305 g
Approx. 395 g
With normal plug-in base
Approx. 380 g
Approx. 470 g
With high plug-in base
Approx. 415 g
Approx. 505 g
LAE10
LFE10
Flame supervision with...
...RAR9
...Ionization probe
...QRA
Required detector current
- At AC 100 V / AC 220 V
Min. 8 µA
Min. 8 µA
Min. 150 µA
- At AC 110 V / AC 240 V
Min. 8 µA
Min. 9 µA
Min. 200 µA
Possible detector current
- At AC 100...110 V / AC 220...240 V
Max. 38 µA
Max. 100 µA
Max. 650 µA
Perm. length of connecting cables
20 m ²)
20 m ¹)
20 m ¹)
¹) In case of greater distances, use low-capacitance cable (total max. 2 nF)
Example: Single-core RG62
²) Run detector cables separately, at least 5 cm away from other cables
7/15
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Technical data (cont´d)
Environmental
Storage
DIN EN 60721-3-1
conditions
Climatic conditions
Class 1K3
Mechanical conditions
Class 1M2
Temperature range
-20...+60 °C
Humidity
<95 % r.h.
Transport
DIN EN 60721-3-2
Climatic conditions
Class 2K2
Mechanical conditions
Class 2M2
Temperature range
-20...+60 °C
Humidity
<95 % r.h.
Operation
DIN EN 60721-3-3
Climatic conditions
Class 3K5
Mechanical conditions
Class 3M2
Temperature range
-20...+60 °C
Humidity
<95 % r.h.
Installation altitude
Max. 2,000 m above sea level
Caution!
Condensation, formation of ice and ingress of water are not permitted!
If this is not observed, there is a risk of loss of safety functions and a risk
of electric shock.
Measuring circuits
Ionization probe
QRA
RAR9
A
LFE10
A
LFE10
LAE10
ION
M- + 810
-
+910
M-+9
10
-
M
-
+ C
+
QRA... +
7781a07/0908
Legend
A
Illumination of flame
C
Electrolytic capacitor 100 µF, DC 10 V
ION
Ionization probe
M Microammeter
QRA... Flame detector
Caution!
Ignition may affect the ionization current!
Remedy: Exchange the connections on the primary side of the
ignition transformer.
8/15
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Function
Basic mode of operation of the flame safeguards in connection with the LEC1 control
unit:
When used with the LEC1, the flame safeguard feeds the flame signal into the burner
control’s control program the same way as if the flame safeguard was a component of
the burner control (same as with an oil or gas burner control) . In the event of non-
ignition, loss of flame during burner operation or faulty flame signal during burner off or
purging times, the burner will always be shut down and the burner control will initiate
lockout. The switching functions needed to feed the flame signal into the burner
control’s control circuit are provided by flame relay «FR» of the flame safeguard and
the 2 auxiliary relays «HR1»and «HR2»of the LEC1 control unit. The LEC1 control
unit also delivers the sequence control for the flame simulation test in connection with
the LAE10 flame safeguard, and the flame detector test with the LFE10. The test is
controlled via the connecting line between terminal 15 of the burner control and
terminal 6 of the respective flame safeguard.
Both tests
start about 7 seconds after a controlled shutdown

are continued during burner off times

Are continued during the ensuing prepurge time

end 3 seconds before start of the safety time
Following flame signals during this test time lead to lockout with interlocking of the
LEC1 control unit:
Extraneous light

Ageing flame detectors

Other defects of the flame supervision equipment
In the flame safeguard, the switching functions required are performed by
auxiliary relay «HR3».
Since in the case of flame supervision with an ionization probe, it is not necessary to
carry out a test, the connecting line between terminal 15 of the burner control and
terminal 6 of the flame safeguard is not required here.
Information!
Instead, terminal 6 must be connected to the live wire.
Example: By making a connection to terminal 1, 5 or 7.
Any flame signal –be it a normal flame signal during operation or a faulty signal –is
indicated by the indication lamp at housing of flame safeguard.
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Mode of operation of the flame safeguards when used for dual-supervision (detailed connection diagram, e.g.
for oil burners)
LEC1
1
2
6
5
7
13 14
15
3
4
1
6
8
RAR9...
FR
+
9
10
7
5
L1
2
LAE10
3
4
1
6
8
RAR9...
FR
+
9
10
Z
OV1
OV2
L1
7
5
2
LAE10
With this type of supervision, 1flame is supervised by 2
independently operating flame safeguards, aimed at
reducing the possibility of loss of flame during operation
in case of a simultaneous failure of both flame
safeguards to an «improbable coincidence».
With dual-supervision, the control contacts of the flame
relays of both flame safeguards are connected in series
so that loss of the flame signal of either of the flame
safeguards is sufficient to cause lockout of the
burner. A faulty flame signal by only 1of the 2 flame
safeguards during burner off times or purging times also
leads to lockout.
P(R) N(Mp)
7781a01/0908
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Mode of operation of the flame safeguards when used for the supervision of 2 manually controlled burners
With this type of supervision, too, the burner can be
started only if the flame detector or flame simulation test
has been successful. This means that neither of the 2
flame safeguards may detect a flame signal during burner
off times. When the burner is started up, the detector test
will automatically be interrupted.
When pressing button «I», relay «d»is energized via
circuit path 4-5 of the flame relays, which is still closed,
thus switching on the ignition of both burners.
At the same time, fuel is released.
The duration of the start pulse given by pressing button
«I»should be limited by a time relay –in the sense of a
safety time.
If the flame is established on both burners - indicated by
the signal lamps at housing of flame safeguards –relay
«d»is now maintained in its energized condition via
circuit path 3-7 of the 2 flame relays.
When releasing button «I», ignition will be switched off,
thus completing the startup sequence.
If the event of loss of flame on 1of the burners, the
respective flame relay is deenergized, thereby
neutralizing the holding circuit for relay «d». This means
that the fuel valves of both burners will immediately be
shut.
The burners are switched off manually be pressing button
«0», or –automatically –by the control / limit thermostat
or pressurestat / pressure switch in the phase wire
connection.
In case of flame supervision with ionization probes,
terminal 6 of the flame safeguards must be connected
directly to the phase wire since no detector test is
required here.
Example: During connection with terminal 1!
Note!
Ensure that the drop out delay time of relay «d»does not exceed 50 ms (also refer to«Connection
examples», 7781a02).
Caution!
An ignited UV tube is a source of UV radiation! In case of flame supervision by
means of flame detectors, the detectors must be placed such that there is no
direct visual contact between them. If this is not observed, there is a risk of loss
of safety functions
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Mode of operation of the flame safeguards with multi-flame supervision (detailed connection diagram, e.g. for
gas burners)
LEC1
1
2
6 5
7
13 14
15
4
1
6
3
8
FR
ION
9
+
0
I
Z
L1
10
QRA...
BS
7
5
2 LFE10
GV1 GV2
4
1
6
3
8
FR
ION
9
+
0
I
Z
L1
10
QRA...
BS
7
5
2 LFE10
GV1 GV2
4
1
6
3
8
FR
ION
9
+
0
I
Z
L1
10
QRA...
BS
7
5
2
LFE10
GV1 GV2
P(R) N(Mp)
7781a03/0903
Like with dual-supervision, the control contacts
of the flame relays of all flame safeguards
must be connected in series when using multi-
flame supervision.
A burner causes all other burners to go
to lockout if:
the flame is not established during the
safety time
or
the flame is lost during operation.
Correctly operating burners can be restarted
only –after the burner control has been reset
–when the faulty burner has been shut down.
In that case, the operating switch must not only
bridge the control contacts of the respective
flame safeguards, thus closing the control
chain again, but must also break the phase
wire connection to the ignition transformer and
the fuel valves.
Likewise, after rectification of the fault, the
burner can only be restarted in connection with
the other burners, that is, only after all burners
have previously been shut down.
Caution!
Terminal 10 must be connected to
earth also when using the flame
detector QRA!
Legend
BS
Operating switch OFF / ON per burner
ION
Ionization probe for ionization supervision
FR
Flame relay
GV1 / GV2
Gas valve for 1st and 2nd stage
L1
Built-in signal lamp indication of flame
QRA...
Flame detector
Z
Ignition transformer
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Basic circuit diagrams
LFE10 with flame detector QRA
P(R)
H
15 LEC1
7
5
1
6
FR
HR3
8
QRA...
hr3
9
+
10
L1
3
4
2
7781a05/0199
N(Mp)
13 14 LEC1
Caution!
Terminal 10 must be connected to earth!
LFE10 with ionization supervision
P(R)
H
7
5
1
6
FR
HR3
8
ION
hr3
9
10
L1
3
4
2
N(Mp)
7781a06/0903
13 14 LEC1
LAE10 with silicon photocell detector RAR9...
P(R)
H
15 LEC1
7
5
1
6
FR
HR3
8
RAR9...
hr3
9
+
3
L1
10
4
2
7781a04/0908
N(Mp)
13 14 LEC1
Legend
FR Flame relay
HMain switch
HR3 Auxiliary relay for UV detector or flame
simulation test
ION Ionization probe for ionization
supervision
L1 Built-in signal lamp
Indication of flame

QRA...Flame detector

RAR9... Silicon photocell detector
13/15
Building Technologies Division CC1N7781en
01.08.2016

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Dimensions
Dimensions in mm
Base versions
Low plug-in base,
Design features:
AGK 4 104 1345 0
10-pole (screw terminals), with additional earth terminals. Cable entry either through
the bottom of the base (2 knockout holes), the front, from the right or left side (total of 5
cable entries).
13
1
2
3
4
5
6
7
8
9 10
4,6
31
1
2
3
4
5
6
7
8
9 10
4
13
16
31
22
22
16,2
25
25
30
30
42,5
42,5
90
4
7781m02/1198
14/15
Building Technologies Division CC1N7781en
01.08.2016

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Dimensions (cont´d)
Dimensions in mm
Base versions
High plug-in base, Design features:
AGK 4 104 9025 0 With removable front (shaded area in the drawing).
10-pole (screw terminals), and:
2 auxiliary terminals with markings 11 and 12

2 neutral terminals, wired to terminal 2 (neutral input)

2 earth terminals, with earthing lug for the burner
For cable entry:
2 cable entries in the bottom of the base

4 threaded knockout holes for cable glands Pg11, 1 on the right, 1 on the left,
and in the removable front
1
2
3
4
5
6
7
8
9
10
4,5
31,5
4
N
11
12
13
16
23,5
34
16 10,5
22
22
4,5
25
25
30
30
45
45
13
110
4
7781m01/1198
15/15
Building Technologies Division
CC1N7781en
01.08.2016