Siemens SQM40 Series User manual

CC1N7817en
24.02.2015
Building Technologies Division
7817
A
ctuator SQM40.../SQM41...
Actuators for air and gas
dampers
SQM40...
SQM41...
Electromotoric actuator up to 18 Nm torque
Clockwise and counterclockwise variants
Running times from 5 up to 65 seconds
Different shaft ends available
Electronic version with analog control input
Internal position indication
Drive shaft can be disengaged
Variants with UL and CSA approval, as well as GL marine approval
The SQM40.../SQM41… and this Data Sheet are intended for use by OEMs which
integrate the actuators in their products!
Use
The SQM40.../SQM41... actuators are suited for driving oil pressure controller, butterfly
valves, dampers or for use on other applications that require rotary motion.
Areas of application are oil and gas burners of medium to higher capacity as well as
thermal process plants.
The actuators are used primarily for load-dependent control of the flow of gas, oil and
combustion air:
In connection with 3-position or modulating controllers (e.g. 4...20 mA), and/or ...
... directly by burner controls

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Supplementary documentation
Product type Type of documentation Documentation number
SQM45... / SQM48... Data Sheet N7814
SQM10... / SQM20... Data Sheet N7812
ASZ... Data Sheet N7921
ASZ22.3x Mounting Instruction 4 319 9604 0 (M7921)
Warning notes
To avoid injury to persons, damage to property or the environment, the following
warning notes must be observed!
Only qualified personnel may open, interfere with or modify the actuators!
Read the documentation on the actuators carefully and fully. If not observed,
dangerous situations might occur
The user must ensure that the actuators meet the requirements of the relevant
application standards
Safety-related applications are only available with Siemens burner controls!
All product-related activities (mounting, settings and maintenance) must be
performed by qualified and authorized personnel
Caution!
Risk of electric shock hazard – to disconnect the actuator from power, it may be
necessary to open more than one switch. Before performing maintenance work,
the actuator must be disconnected from power
The electrical connection between the conduit fittings is not made automatically.
It must be established on installation site
The connecting plate is made of plastic and does not provide earthing of the
conduit fittings. Earthing must be ensured by adequate washers and wire links
All cam switch settings must satisfy the requirements of the relevant application
standards
To provide protection against electric shock hazard, the connecting terminals must
have adequate touch protection. Make certain that non-insulated connections or
wires cannot be touched
Each time work has been carried out (mounting, installation, service work, etc.),
check to ensure that wiring is in an orderly state
Fall or shock can adversely affect the safety functions. Such actuators must not be
put into operation even if they do not exhibit any damage
Static charges must be avoided since they can damage the actuator’s electronic
components when touched.
Recommendation: Use ESD equipment
Notes on use in North America
Use of flexible conduit including adequate accessories is mandatory
Use of copper wiring is mandatory
All circuits of class 2 must use cables type CL3, CL3R, CL3P or comparable types,
OR
All circuits are wired according to class 1 (electrical light or power circuits)

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Mounting notes
Ensure that the relevant national safety regulations and notes on standards are
complied with
In geographical areas where DIN regulations apply, the mounting and installation
requirements of VDE must be satisfied, especially DIN/VDE 0100, 0550 and
DIN/VDE 0722
Make certain that the actuator is not exposed to direct solar radiation
Required tightening torques for the fixing screws of the
- housing cover: 3.5 Nm
- connecting cover: 2 Nm
Note!
Ensure correct direction of rotation!
SQM40… (left, CCW) SQM41… (right, CW)
0°
135°
0°
135°
90°
90°
Installation notes
Ensure that the electrical wiring is in compliance with national and local safety
regulation
Make certain that strain relief of the connected cables conforms to the relevant
standards (e.g. as per DIN EN 60730 and DIN EN 60335)
Ensure that spliced wires cannot get into contact with neighboring terminals. Use
adequate ferrules
Unused terminals of the SQM40.../SQM41... must be covered by dummy plugs
When making the wiring, the AC 120 V or AC 230 V section must be separated from
other voltage sections, thus ensuring protection against electric shock hazard
The connection between the actuator drive shaft and the relevant controlling element
must be form-fitted
Only plastic versions of cable glands may be used

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Electrical connection
The actuators must always be powered via a prefuse of max. 6.3 AT
(as per DIN EN 6012- 2/5)
For the protective earth connection, the housing of all variants has a marked PE
connecting terminal. A tightening torque of 1.2 Nm must be observed for fitting the
screw
The supplied RAST3.5 connectors or RAST5 connectors must be used with screw
terminals for electrical connections. A tightening torque of 0.25 Nm must be
observed for fitting the screw
Note!
The connection of fuel valves is only permitted on fused output terminals, see chapter
Connection diagrams. For this purpose, specific unit variants are available fitted with
a unit-internal, non-replaceable fuse. The unit-internal fuse is used to protect each
switching contact from welding in the event of external short-circuit. In addition,
please note that the maximum current load for the fused output terminals is reduced,
see chapter Connection diagrams.
Marking of the SQM40... / SQM41... connection areas:
X1
SELV / PELV
X2
Mains voltage range
SQM4x.x1xxxx
SQM4x.x2xxxx
SQM4x.x4xxxx
SQM4x.x5xxxx:
X1, X2, X3
Mains voltage range
7817z09e/0315
SQM4x.x3xxx
x
SQM4x.x6xxxx
SQM4x.x7xxxx
SQM4x.x8xxxx:
Note
SELV or PELV depends on the safety class of the connected components. In the
case of PELV, the relevant component is connected to protective earth.

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Cam settings
The mechanical setting facility for the cams is physically separated from the connection
terminals. When the actuator is disconnected from power, the switches can be adjusted
via a scale. The cams can be changed via adjusting screws. The scale indicates the
angles of the switching points.
Standards and certificates
Conformity to EEC directives
- Electromagnetic compatibility EMC (immunity)
- Low-voltage directive
2004/108/EC
2006/95/EC
ISO 9001:2008
ISO 14001:2004
OHSAS 18001:2007
For use in US/Canada where the power supply lines require a connection facility for
flexible conduit, the actuator's product no. includes type suffix «R» (see following
example). These products are UL-listed.
For types marked with R
Example: SQM40.264R10
For types marked with 36 or 38
Examples: SQM4x.36xA2x, SQM4x.38xA2x
For marine applications, environmental category A.
Lifetime
The actuator has a designed lifetime* of 250,000 start cycles
(close open close) under load with the rated torque in the entire rotation angle
range, which under normal operating conditions in heating mode corresponds to approx.
10 years of usage (starting from the date of manufacture on the device type plate). 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).
The designed lifetime is based on use of the actuator according to the manufacturer’s
Data Sheet. After reaching the designed lifetime in terms of the number of startup cycles,
or the respective time of usage time, the actuator is to be replaced by authorized
personnel.
* The designed lifetime is not the warranty time specified in the Terms of Delivery.
Disposal notes
The unit contains electrical and electronic components and must not be disposed of
together with domestic waste.
Local and currently valid legislation must be observed.

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Mechanical design
Lower housing part made of die-cast aluminum
Housing cover made of impact-proof and heat-resistant plastic
Synchronous motor
Shaft can be manually disengaged from the motor by operating the coupling
(coupling pin (K1))
Automatic reengagement
Disengagement of drive shaft / motor by pressing coupling pin «K1»
Coupling pin "K1"
Earth terminal „PE“
Earth terminal (PE) with screw fitting
Non-reactive gear
With adjustable cams
Scales beside the cams indicate the angle of the switching point
Internally
– Scale 0...135° at the end of the cam assembly
– Scale range to direction of rotation with arrow marking for SQM41 or with marking
in slot die for SQM40
RAST3.5 screw terminals are factory supplied, depending on the PCB variant
RAST5 screw terminals are factory supplied, depending on the PCB variant
Optional: Insulation displacement connectors
Cable entry by means of 2 openings in the connector cover supplied.
The cable glands are not included in the scope of delivery
Large openings in the housing allow easy cable installation
Maintenance-free gearwheels and bearings.
Different shaft versions available, shafts are supplied assembled
Drive shaft is not replaceable
Mounting holes on the lower side of the housing (shaft side), such as actuators
SQM45... / SQM48... using M5 screws, or alternatively as actuators SQM10... / SQM20...
front mounting using M5 self-tapping screws (see chapter Dimensions).
Housing
Drive motor
Coupling
Earthing connection
Cam shaft drive
A
djustment of
switching points
Position indicator
Electrical
connections
Gear train
Drive shaft
A
ctuator fixing

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Type summary (other types on request)
Product no.
Direction of
rotation
Torque ¹) / running time ¹) for 90°
PCB
Shaft no.
Regional
version
Operating
voltage
Potentio-
meter
Countercloc kwise Clockwise Electronic no. Switch no. 3-position 2-position No. of switches No. of relay EU US / Canada AC120V AC230V Double 90° Double 135°
SQM40.025A21 *) 2.5Nm/5s 2 4 5 
SQM40.065A23 *) 2.5Nm/5s 6 6 5 
SQM40.115R11 5Nm/15s 1 3 5 **) 
SQM40.115R13 5Nm/15s 1 3 5 **) 
SQM40.141A21 5Nm/15s 4 3 1  
SQM40.144R11 5Nm/15s 4 3 4 
SQM40.145A21 5Nm/15s 4 3 5 
SQM40.145R11 5Nm/15s 4 3 5 
SQM40.155R11 5Nm/15s 5 4 5 **) 
SQM40.155R13 5Nm/15s 5 4 5 **) 
SQM40.161A20 5Nm/15s 6 6 1 
SQM40.164R11 5Nm/15s 6 6 4 
SQM40.165A20 5Nm/15s 6 6 5 
SQM40.165A21 5Nm/15s 6 6 5  
SQM40.165R11 5Nm/15s 6 6 5 
SQM40.171A20 5Nm/15s 7 5 1 1 
SQM40.174R10 5Nm/15s 7 5 1 4 
SQM40.175A21 5Nm/15s 7 5 1 5 
SQM40.185R11 5Nm/15s 8 6 5 **) 
SQM40.215R11 10Nm/30s 1 3 5 **) 
SQM40.215R13 10Nm/30s 1 3 5 **) 
SQM40.235A20 10Nm/30s 3 4 3 5 
SQM40.241A11 10Nm/30s 4 3 1 
SQM40.241A21 10Nm/30s 4 3 1 
SQM40.241R11 10Nm/30s 4 3 1 
SQM40.244A21 10Nm/30s 4 3 4  
SQM40.244R11 10Nm/30s 4 3 4 
SQM40.245A11 10Nm/30s 4 3 5 
SQM40.245A21 10Nm/30s 4 3 5 
SQM40.245R11 10Nm/30s 4 3 5 
SQM40.247A21 10Nm/30s 4 3 7 
SQM40.255A21 10Nm/30s 5 4 5 
SQM40.255R11 10Nm/30s 5 4 5 **) 
SQM40.255R13 10Nm/30s 5 4 5 **) 
SQM40.261A11 10Nm/30s 6 6 1 
*) On request
**) CSA approval in process

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Type summary (other types on request) (cont’d)
Product no.
Direction
of rotation
Torque ¹) / running time ¹) for 90°
PCB
Shaft no.
Regional
version
Operating
voltage
Potentio-
meter
Countercloc kwise Clockwise Electronic no. Switch no. 3-position 2-position No. of switches No. of relay EU US / Canada AC120V AC230V Double 90° Double 135°
SQM40.261A20 10Nm/30s 6 6 1 
SQM40.261A21 10Nm/30s 6 6 1 
SQM40.261R11 10Nm/30s 6 6 1 
SQM40.264A21 10Nm/30s 6 6 4 
SQM40.264R11 10Nm/30s 6 6 4 
SQM40.265A11 10Nm/30s 6 6 5 
SQM40.265A20 10Nm/30s 6 6 5 
SQM40.265A21 10Nm/30s 6 6 5 
SQM40.265R11 10Nm/30s 6 6 5 
SQM40.267A20 10Nm/30s 6 6 7 
SQM40.271A20 10Nm/30s 7 5 1 1 
SQM40.271R10 10Nm/30s 7 5 1 1 
SQM40.274R10 10Nm/30s 7 5 1 4 
SQM40.275A20 10Nm/30s 7 5 1 5 
SQM40.275A21 10Nm/30s 7 5 1 5 
SQM40.275R10 10Nm/30s 7 5 1 5 **) 
SQM40.281A20 10Nm/30s 8 6 1 
SQM40.285R11 10Nm/30s 8 6 5 **) 
SQM40.317A23 18Nm/65s 1 3 7 
SQM40.317R11 18Nm/65s 1 3 7 **) 
SQM40.317R13 18Nm/65s 1 3 7 **) 
SQM40.357R11 18Nm/65s 5 4 7 **) 
SQM40.357R13 18Nm/65s 5 4 7 **) 
SQM40.387A20 18Nm/65s 8 6 7 
SQM40.387A23 18Nm/65s 8 6 7 
SQM40.387R11 18Nm/65s 8 6 7 **) 
**) CSA approval in process

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Type summary (cont´d) (other types on request) (cont’d)
Product no.
Direction
of rotation
Torque ¹) / running time ¹) for 90°
PCB
Shaft no.
Regional
version
Operating
voltage
Potentio-
meter
Countercloc kwise Clockwise Electronic no. Switch no. 3-position 2-position No. of switches No. of relay EU US / Canada AC120V AC230V Double 90° Double 135°
SQM41.141A21 5Nm/15s 4 3 1 
SQM41.144R11 5Nm/15s 4 3 4 
SQM41.145A21 5Nm/15s 4 3 5 
SQM41.145R11 5Nm/15s 4 3 5 
SQM41.161A20 5Nm/15s 6 6 1 
SQM41.164R11 5Nm/15s 6 6 4 
SQM41.165R11 5Nm/15s 6 6 5 
SQM41.174R10 5Nm/15s 7 5 1 4 
SQM41.185R11 5Nm/15s 8 6 5 **) 
SQM41.241A11 10Nm/30s 4 3 1 
SQM41.241A21 10Nm/30s 4 3 1 
SQM41.241R11 10Nm/30s 4 3 1 
SQM41.244A21 10Nm/30s 4 3 4 
SQM41.244R11 10Nm/30s 4 3 4 
SQM41.245A11 10Nm/30s 4 3 5 
SQM41.245A21 10Nm/30s 4 3 5 
SQM41.245R11 10Nm/30s 4 3 5 
SQM41.254R11 10Nm/30s 5 4 4 **) 
SQM41.261A11 10Nm/30s 6 6 1 
SQM41.261A21 10Nm/30s 6 6 1 
SQM41.261R11 10Nm/30s 6 6 1 
SQM41.264A21 10Nm/30s 6 6 4 
SQM41.264R11 10Nm/30s 6 6 4 **) 
SQM41.265R11 10Nm/30s 6 6 5 
SQM41.267A21 10Nm/30s 6 6 7 
SQM41.271R10 10Nm/30s 7 5 1 1 
SQM41.274R10 10Nm/30s 7 5 1 4 
SQM41.275A21 10Nm/30s 7 5 1 5 
SQM41.275R10 10Nm/30s 7 5 1 5 **) 
SQM41.285R11 10Nm/30s 8 6 5 **) 
SQM41.357A23 18Nm/65s 5 4 7 
SQM41.357R11 18Nm/65s 5 4 7 **) 
SQM41.367A21 18Nm/65s 6 6 7 
SQM41.387R11 18Nm/65s 8 6 7 **) 
**) CSA approval in process
1) Specifications apply to ambient temperatures of 23 °C and a mains voltage of AC 120 V or
AC 230 V and a mains frequency of 50 Hz. With a mains frequency of 60 Hz, the running times are
approx. 17% shorter. Torques lower by the same rate.

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Type summary (cont´d) (other types on request) (cont’d)
Note
Not all types of actuators are available ex stock. Additional versions are available on
request.
Type of drive shaft Max.
torque
Shaft
no.
10 mm, woodruff key as per DIN 6888 10 Nm 1
9.5 mm, square shaft 15 Nm 4
10 mm D type shaft, compatible with SQM45... 10 Nm 5
14 mm with parallel key as per DIN 6885, compatible with SQM48... 20 Nm 7
Drive shafts:

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Accessories
Mounting plate ASK33.1
For mounting the SQM40... / SQM41... onto the VKP... proportional controlling
element
See Mounting Instruction 74 319 0843 0 (M7646)
Mounting kit ASK33.4
For fitting SQM40... / SQM41... to the butterfly valve VKF41.xxC
See Mounting Instruction 74 319 0916 0 (M7813 / 7814)
Front cover (on request)
For making the connections for the power supply lines
- For 1/2" NPT protective sleeve
A
GA45.11
- For metric cable gland
A
GA45.1
2

Note!
Front covers AGA45.11 and AGA45.12 are only to be used as replacements.
The corresponding AGA45... version is factory-prefitted onto the SQM40... /
SQM41...
Connector sets (on request)
With screw terminals for replacement:
- For SQM4x.x1xxxx AGA45.1
- For SQM4x.x4xxxx AGA45.4
- For SQM4x.x2xxxx, SQM4x.x5xxxx AGA45.5
- For SQM4x.x3xxxx, SQM4x.x6xxxx, SQM4x.x7xxxx, SQM4x.x8xxxx AGA45.6
Potentiometers (on request)
For retrofitting
- For SQM40... / SQM41...: Double potentiometer 2*1000 , 90° ASZ22.32
- For SQM40...: Double potentiometer 2*1000 , 135° ASZ22.35
- For SQM41...: Double potentiometer 2*1000 , 135° ASZ22.34
Refer to Data Sheet N7921.

Note!
ASZ22... potentiometers are only intended for the retrofitting onto SQM40... /
SQM41... types with the end number 0 (SQM4x.xxxx0).
For all SQM40... / SQM41... types with the end number 1 (SQM4x.xxxx1) or 3
(SQM4x.xxxx3), the potentiometers are already factory installed.
A
ccessories must be ordered as separate items:

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Technical Data
Operating voltage
- SQM4x.xxxA1…
- SQM4x.xxxA2…
- SQM4x.xxxR1…
AC 120 V -15%/+10%
AC 230 V -15%/+10%
AC 120 V -15%/+10%
Operating frequency 50…60 Hz ±6%
Drive motor Synchronous motor
Power consumption 10 VA
Operating angle Between 0° and max. 90° or between 0°
and max. 135°, depending on the type
Mounting position Optional
Degree of protection IP66
Nema 4
(only for types with UL / CSA certification:
In process)
Safety class I
External overload fuse Max. 6.3 AT (slow) to DIN EN 60127-2/5
Internal overload fuse 2 AT (slow), depending on the type, non-
exchangeable
Cable entry 2 x M16 without thread or
2 x ½” NPT thread, depending on the type
Wire cross-sectional area of the
connecting wires, including earth terminal
(PE)
0.5...2.5 mm²
Direction of rotation Facing the shaft end (mounting surface):
SQM40... Counterclockwise (CCW)
SQM41... Clockwise (CW)
Torque 2.5 Nm / 5 Nm / 10 Nm / 18 Nm,
depending on type 1)
Torque tolerance -25%
Each valid at the tolerance limits of
temperature and operating voltage
Holding torque 50%
Of the torque for types with 5 Nm, 10 Nm,
and 18 Nm torque
36%
Of the torque for types with 2.5 Nm torque
Running time 5 s, 15 s, 30 s and 65 s, depending on
type 1)
Running time tolerance +10%
Pause time at change in direction of
rotation, zero-current state
>100 ms
End and auxiliary switches
Type
Switching voltage
Switching capacity
To DIN 41636
AC 24...250 V
See specifications in chapter Connection
diagrams
Number of end switches 2
Number of auxiliary switches Max. 4, depending on type
Drive shaft Supplied as standard, non-exchangeable
Weight Approx. 2 kg
Temperature of the mounting surface Max. 60 °C
1) Specifications apply to ambient temperatures of 23 °C and a mains voltage of AC 120 V or
AC 230 V and a mains frequency of 50 Hz. With a mains frequency of 60 Hz, the running times are
approx. 17% shorter. The torques lower by the same rate
General unit data

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Technical Data (cont´d)
Lifetime 250,000 start cycles (close open 
close) under load with the rated torque in
the entire rotation angle range.
2,000,000 control cycles under load with
75% of rated torque in rotation angle
range of 10°
General
Linearity <5% of the control range
Control range 0...90° or 0...135°, depending on type
Voltage setpoint DC 2...10 V
X1-1 (U-IN), X1-2 (GND)
- Umin DC 2 V
- Umax DC 10 V
Input impedance ≥5 k
Current setpoint DC 4...20 mA
X1-3 (I-IN), X1-2 (GND)
- Imin DC 4 mA
- Imax DC 20 mA
Input impedance ≤500 
Impedance setpoint 0...135 
X1-4, X1-5, X1-6 (GND)
- RNominal 135 ±5%
Cross-sectional area of the power supply lines
SQM4x.x1xxxx / SQM4x.x4xxxx /
SQM4x.x5xxxx, (X2), (PE)
SQM4x.x6xxxx / SQM4x.x7xxxx /
SQM4x.x8xxxx, (X1)/(X2)/(X3), (PE)
Class 1, min. AWG 16
Suited for 105 °C
Max. 2.5 mm² or AWG 14
SQM4x.x1xxxx / SQM4x.x2xxxx
SQM4x.x4xxxx / SQM4x.x5xxxx (X1)
Class 2, min. AWG 22
Suited for 105 °C
Max. 1 mm² or AWG 18
Storage DIN EN 60721-3-1
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 2K3
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 3M4
Temperature range -20...60 °C
-15...+60 °C for 18 Nm design
Humidity <95% r.h.
Notice!
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.
A
nalog inputs
For use in North
A
merica
Environmental conditions

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Technical Data (cont´d)
Resistance 2*1000 double potentiometer with
separated resistance tracks
Operating voltage DC 10 V
Permissible hysteresis 0.3% of 90° or of 135°, depending on type
Total resistance tolerance ±20%
Effective angular rotation 90° or 135°, depending on type
Terminal strip Triple-pole
For cross-sectional areas of 0.5...1 mm²
Wiper current rating Max. 100 µA
Transfer resistance of wiper contact Max. Rü 100 
Linearity (referred to Rges = 1000 ) 1%
Smoothness (alpha = 10°) / microlinearity <0.5%
Life cycle Approx. 2 million positioning cycles
Temperature coefficient 0.4 /K
abc
Potentiometer drawn in start position (as
supplied).
Terminal markings:
a = high end of potentiometer
b = potentiometer wiper
c = low end of potentiometer
Apply operating voltage only on terminals «a» and «c». Conductive plastic
potentiometers can be destroyed if operating voltage is applied incorrectly between «a 
b» or «b c».
The polarity of the potentiometer end pickups «a c» must be observed in order to
achieve the correct signal direction to the potentiometer wiper «b».
If the potentiometer specified for 90° is operated outside of the effective range of angular
rotation of 90°, no valid signal will be present at the wiper contact (interrupted circuit).
This can happen if the switch position of the switching cam Ifor high-fire is configured for
over 90°.
The 90° version ASZ22.32 can be used for both directions of rotation, SQM40...
(counterclockwise) and SQM41... (clockwise).
The 135° versions ASZ22.34 and ASZ22.35 are each intended for a particular direction
of rotation.
The direction of rotation of the potentiometer must correspond with the direction of
rotation of the actuator as follows:
ASZ22.34 can only be used with SQM41... (clockwise)
ASZ22.35 can only be used with SQM40... (counterclockwise)
Conductive plastic
potentiometer
Conductive plastic
potentiometer
connection diagram

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Connection diagrams and connection terminals
Electronic version
xxxx
X2
V
5
M
VI
I
214612 3
X
1
47
4-20mA
GND
2-10V
53
0-135 ?
1
7817d13/1013
Mains voltage terminals Dimensioning
X1-1 2...10 V Input max. DC 10 V
to X1-5
X1-2 4...20 mA Input max. 20 mA
to X1-5
X1-3 0...135 1 Input
X1-4 0...135 2 Input
X1-5 0...135 3 (GND) Input
X2-1 Open (I) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-2 Move to low-fire (V) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-3 Low-fire position reached
(V)
Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-4 Close / ignition (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Controller release Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-6 Neutral Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-7 Open position reached (I) Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
Mains voltage terminals Dimensioning
X2-1 Open (I) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-2 Move to low-fire (V) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-3 Low-fire position reached
(V)
Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-4 Close / ignition (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Controller release Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-6 Neutral Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-7 Open position reached (I) Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
* Only the control lines to the burner controls or to the control unit may be
connected at the marked terminals.
It is not permitted to connect additional external loads, such as signal
lamps.
See SQM4x.x4xxxx in this chapter.
SQM4x.x1xxxx
Range adjustment

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Connection diagrams and connection terminals (cont’d)
Electronic version, only for types with 5 seconds running time
xxxx
X2
V
9
M
VI
I
278
X1
11
4-20mA
GND
26
5
7817d21/0415
IV
453
2
Low-voltage terminals Dimensioning
X1-1 4...20 mA Input max. 20 mA
to X1-2
X1-2 GND Input ---
Mains voltage terminals Dimensioning
X2-1 Open position reached (I) Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-2 Open, high-fire (I) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-3 Auxiliary switch AUX (IV)
NO contact
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-4 Auxiliary switch AUX (IV) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Auxiliary switch AUX (IV)
NC opener
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-6 Low-fire position / ignition
load position reached (V /
VI)
Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-7 Close / ignition (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9*
X2-8 Neutral Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-9 Controller release Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
* Only the control lines to the burner controls or to the control unit may be
connected at the marked terminals.
It is not permitted to connect additional external loads, such as signal
lamps.
See SQM4x.x4xxxx in this chapter.
SQM4x.x2xxxx
Range adjustment

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Connection diagrams and connection terminals (cont’d)
2-position version with 2 end switches and 2 auxiliary switches, 3 relays
X
3X2 X1
12 3
IIIII
I
456
V
I
M
b1
a1
K-A K-C
a2
b2
K-B
41 523
R
32 1
c1
3
xxxx
7817d14/1013
Mains voltage terminals Dimensioning
X1-1 Free --- ---
X1-2 Controller, open Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X1-3 Controller release Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X1-4 Auxiliary switch AUX (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 **
X1-5 Neutral Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X1-6 Auxiliary switch AUX (VI)
NC opener
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9 **
X2-1 Fan supply voltage Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-2 Mains voltage, close Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-3 Low-fire controller Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-4 Fan motor Output AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Free --- ---
X3-1 Auxiliary switch AUX (VI)
NO contact
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9 **
X3-2 Open (I) / close (II),
changeover relay K-C
Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X3-3 Operation, changeover
relay K-B
Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
Notice!
** When connecting a fuel valve:
Max. 0.3 A, cosφ>0.8 inductive.
See SQM4x.x4xxxx in this chapter.
SQM4x.x3xxxx
Range adjustment

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Connection diagrams and connection terminals (cont’d)
Electronic version
xxxx
X2
V
5
M
VI
I
23146123
X1
654
4-20mA
0-135 ?
2-10V GND GND
4
7817d18/1013
Low-voltage terminals Dimensioning
X1-1 2...10 V Input max. DC 10 V
to X1-2
X1-2 GND Input
X1-3 4...20 mA Input Max. 20 mA to X1-2
X1-4 0...135 1 Input
X1-5 0...135 2 Input
X1-6 0...135 3 (GND) Input
Mains voltage terminals Dimensioning
X2-1 Opening (I) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-2 Move to low-fire (V) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-3 Position reached Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-4 Closing/ignition (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Controller release Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-6 Neutral Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
* Only the control lines to the burner controls or to the control unit may be
connected at the marked terminals.
It is not permitted to connect additional external loads, such as signal
lamps.
Adjust the range of the analog signal to match the switch positions (min. and max.
position):
1. Set cam I to the required high-fire position (e.g. 85°; position is indicated on the scale
next to the cam).
2. Set cam V to the required low-fire position (e.g. 20°).
3. Preset the signal at the analog input according to the required high-fire position
(e.g. 20 mA).
4. Turn the potentiometer for maximum angular rotation
a) clockwise, if the actuator has not yet reached its maximum angular rotation, or
b) counterclockwise until the actuator starts
5. Preset the signal at the analog input according to the low-fire position (e.g. 4 mA).
6. Turn the potentiometer for minimum angular rotation
a) counterclockwise, if the actuator has not yet reached its minimum angular
rotation, or
b) clockwise until the actuator starts
Modulation always takes place between high- and low-fire.
Also, it is possible to define a closed position or a separate ignition position by setting
cam VI (independent of cam V, e.g. for defining a position higher than the low-fire
position).
SQM4x.x4xxxx
Range adjustment

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Connection diagrams and connection terminals (cont’d)
Max. potentiometer (high-fire)
7817z08e/0315
Max.
Min.
90° / 135°
0°
Min. potentiometer (low-fire)
Note!
When starting up, the direction of rotation of the potentiometer setting must be
observed:
7817z10/0713
Max.
Min.
90° / 135°
0°
Note
The working range of the potentiometer setting, shown as an example for the current
input 4...20 mA.
Setpoint (I/mA)
20
18
16
14
12
10
8
6
4
2
0
min.
0°
max.
90° / 135°
(V) (I)
10 20 30 40 50 60 70 80 90
Positioning angle (°)
7817d04e/0315
30 60 90 120 135

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Connection diagrams and connection terminals (cont’d)
Electronic version
xxxx
X2
V
9
M
VI
I
278
X1
11
4-20mA
GND
26
5
7817d21/0415
IV
453
2
Low-voltage terminals Dimensioning
X1-1 4...20 mA Input max. 20 mA
to X1-2
X1-2 GND Input ---
Mains voltage terminals Dimensioning
X2-1 Open position reached (I) Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-2 Open / high-fire (I) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-3 Auxiliary switch AUX (IV)
NO contact
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-4 Auxiliary switch AUX (IV) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-5 Auxiliary switch AUX (IV) /
NC opener
Output AC 120 V / AC 230 V
max. 1 A, cos>0.9
X2-6 Low-fire position / ignition
load position reached (V,
VI)
Output AC 120 V / AC 230 V
max. 10 mA, cos>0.9
X2-7 Close / ignition (VI) Input AC 120 V / AC 230 V
max. 1 A, cos>0.9 *
X2-8 Neutral Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
X2-9 Controller release Input AC 120 V / AC 230 V
max. 60 mA / 30 mA
* Only the control lines to the burner controls or to the control unit may be
connected at the marked terminals.
It is not permitted to connect additional external loads, such as signal
lamps.
See SQM4x.x4xxxx in this chapter.
SQM4x.x5xxxx
Range adjustment