AUMA SQEx 05.2 User manual

Part-turn actuators
SQEx 05.2 –SQEx 14.2
SQREx 05.2 –SQREx 14.2
with actuator controls
AUMA MATIC AMExC 01.1
Assembly, operation, commissioningOperation instructions

Read operation instructions first.
●Observe safety instructions.
●These operation instructions are part of the product.
●Retain operation instructions during product life.
●Pass on instructions to any subsequent user or owner of the product.
Purpose of the document:
This document contains information for installation, commissioning, operation and maintenance staff.It is intended
to support device installation and commissioning.
Reference documents:
Reference documents can be downloaded from the Internet (www.auma.com) or ordered directly from AUMA
(refer to <Addresses>).
Table of contents Page
51. Safety instructions................................................................................................................. 51.1. Basic information on safety 51.2. Range of application 61.3. Warnings and notes 71.4. References and symbols
82. Identification........................................................................................................................... 82.1. Name plate 102.2. Short description
113. Transport, storage and packaging........................................................................................ 113.1. Transport 113.2. Storage 113.3. Packaging
124. Assembly................................................................................................................................ 124.1. Mounting position 124.2. Handwheel fitting 124.3. Actuator: mount to valve 144.4. Mounting positions of local controls 154.4.1. Mounting positions: modify
165. Electrical connection............................................................................................................. 165.1. Basic information 175.2. Connecting via Ex plug/socket connector with screw-type terminals (KP, KPH) 175.2.1. Terminal compartment: open 185.2.2. Cable connection 195.2.3. Terminal compartment: close 205.3. Connecting via Ex plug/socket connector with terminal blocks (KES) 205.3.1. Terminal compartment: open 215.3.2. Cable connection 225.3.3. Terminal compartment: close 225.4. Accessories for electrical connection 225.4.1. Controls mounted to wall bracket 235.4.2. Parking frame 245.4.3. Protection cover
2
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Table of contents AMExC 01.1

245.4.4. Earth connection, external
256. Operation................................................................................................................................ 256.1. Manual operation 256.1.1. Manual operation: engage 256.1.2. Manual operation: disengage 256.2. Motor operation 256.2.1. Local operation 266.2.2. Actuator operation from remote
287. Indications.............................................................................................................................. 287.1. Indication lights 287.2. Mechanical position indicator/running indication
308. Signals..................................................................................................................................... 308.1. Feedback signals via output contacts (binary) 308.2. Feedback signals (analogue)
319. Commissioning (basic settings)........................................................................................... 319.1. Heat-up time for low temperature version 319.2. End stops in part-turn actuator 329.2.1. End stop CLOSED: set 339.2.2. End stop OPEN: set 339.3. Switch compartment: open 349.4. Torque switching: set 359.5. Limit switching: set 359.5.1. End position CLOSED (black section): set 359.5.2. End position OPEN (white section): set 369.6. Intermediate positions: set 369.6.1. Running direction CLOSE (black section): set 379.6.2. Running direction OPEN (white section): set 379.7. Test run 379.7.1. Direction of rotation: check 389.7.2. Limit switching: check 389.7.3. PTC tripping device (option): test 389.8. Potentiometer setting 399.9. Electronic position transmitter RWG: set 409.10. Mechanical position indicator: set 409.11. Switch compartment: close
4210. Commissioning –controls settings..................................................................................... 4210.1. Controls: open 4210.2. Type of seating: set 4310.3. Push-to-run operation or self-retaining: set 4410.4. Running indication (blinker transmitter): activate/deactivate 4410.5. Torque fault in collective fault signal: activate/deactivate 4510.6. Positioner 4510.6.1. Input ranges (signal type) for setpoint and actual value 4610.6.2. Behaviour on loss of signal (actuator reaction) 4710.6.3. Adjustment in end positions 4910.6.4. Sensitivity setting 5010.7. EMERGENCY command (EMERGENCY - OPEN/EMERGENCY - CLOSE) 5010.8. Controls: close
3
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Table of contents

5211. Corrective action.................................................................................................................... 5211.1. Faults during commissioning 5211.2. Fuses 5211.2.1. Fuses within the actuator controls 5311.2.2. Motor protection (thermal monitoring)
5512. Servicing and maintenance................................................................................................... 5512.1. Preventive measures for servicing and safe operation 5512.2. Disconnection from the mains 5612.3. Maintenance 5712.4. Disposal and recycling
5813. Technical data......................................................................................................................... 5813.1. Features and functions of actuator 6013.2. Features and functions of actuator controls 6113.3. Service conditions 6213.4. Further information
6314. Spare parts............................................................................................................................. 6314.1. Part-turn actuator SQEx 05.2 –SQEx 14.2/SQREx 05.2 –SQREx 14.2 with Ex plug/socket
connector and screw-type terminals (KP, KPH) 6514.2. Actuator controls AUMA MATIC AMExC 01.1 via Ex plug/socket connector with screw-type
terminals (KP, KPH) 6714.3. Actuator controls AUMA MATIC AMExC 01.1 via Ex plug/socket connector with terminal
blocks (KES)
6915. Certificates.............................................................................................................................. 6915.1. Declaration of Incorporation and EC Declaration of Conformity 7015.2. ATEX certificate
76Index........................................................................................................................................
78Addresses...............................................................................................................................
4
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Table of contents AMExC 01.1

1. Safety instructions
1.1. Basic information on safety
Standards/directives AUMA products are designed and manufactured in compliance with recognised
standards and directives.This is certified in a Declaration of Incorporation and an
EC Declaration of Conformity.
The end user or the contractor must ensure that all legal requirements, directives,
guidelines, national regulations and recommendations with respect to assembly,
electrical connection, commissioning and operation are met at the place of installation.
Theyinclude among others standards and directivessuch as IEC/EN 60079“Electrical
apparatus for explosive atmospheres" –
●Part 14: Electrical installations in hazardous areas (other than mines).
●Part 17: Inspection and maintenance of electrical installations in hazardous
areas (other than mines).
Safetyinstructions/warn-
ings All personnel working with this device must be familiar with the safety and warning
instructions in this manual and observe the instructions given. Safety instructions
and warning signs on the device must be observed to avoid personal injury or property
damage.
Qualification of staff Assembly, electrical connection, commissioning, operation, and maintenance must
be carried out exclusively by suitably qualified personnel having been authorised by
the end user or contractor of the plant only.
Prior to working on this product, the staff must have thoroughly read and understood
these instructions and, furthermore, know and observe officially recognised rules
regarding occupational health and safety.
Work performed in potentially explosive atmospheres is subject to special regulations
which have to be observed.The end user or contractor of the plant are responsible
for respect and control of these regulations, standards, and laws.
Commissioning Prior to commissioning, it is important to check that all settings meet the requirements
of the application. Incorrect settings might present a danger to the application, e.g.
cause damage to the valve or the installation.The manufacturer will not be held
liable for any consequential damage.Such risk lies entirely with the user.
Operation Prerequisites for safe and smooth operation:
●Correct transport, proper storage, mounting and installation, as well as careful
commissioning.
●Only operate the device if it is in perfect condition while observing these instruc-
tions.
●Immediately report any faults and damage and allow for corrective measures.
●Observe recognised rules for occupational health and safety.
●Observe the national regulations.
●During operation,thehousing warmsupand surfacetemperatures>60°C may
occur.To prevent possible burns, we recommend checking the surface temper-
ature using an appropriate thermometer and wearing protective gloves, if re-
quired, prior to working on the device.
Protective measures The end user or the contractor are responsible for implementing required protective
measures on site, such as enclosures, barriers, or personal protective equipment
for the staff.
Maintenance To ensure safe device operation, the maintenance instructions included in this manual
must be observed.
Any device modification requires prior consent of the manufacturer.
1.2. Range of application
AUMA part-turn actuators are designed for the operation of industrial valves, e.g.
butterfly valves and ball valves.
5
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Safety instructions

The devices described below are approved for use in the potentially explosive
atmospheres of zones 1, 2, 21, and 22.
If temperatures >40 °C are to be expected at the valve mounting flange or the valve
stem (e.g.due to hot media), please consult AUMA.Temperatures > 40 °C are not
considered with regards to the non-electrical explosion protection.
Other applications require explicit (written) confirmation by the manufacturer.
The following applications are not permitted, e.g.:
●Industrial trucks according to EN ISO 3691
●Lifting appliances according to EN 14502
●Passenger lifts according to DIN 15306 and 15309
●Service lifts according to EN 81-1/A1
●Escalators
●Continuous duty
●Buried service
●Continuous submersion (observe enclosure protection)
●Potentially explosive areas of zones 0 and 20
●Potentially explosive areas of group I (mining)
●Radiation exposed areas in nuclear power plants
No liability can be assumed for inappropriate or unintended use.
Observance of these operation instructions is considered as part of the device's
designated use.
Information These operation instructions are only valid for the "clockwise closing" standard
version, i.e. driven shaft turns clockwise to close the valve.
1.3. Warnings and notes
The following warnings draw special attention to safety-relevant procedures in these
operation instructions, each marked by the appropriate signal word (DANGER,
WARNING, CAUTION, NOTICE).
Indicates an imminently hazardous situation with a high level of risk. Failure
to observe this warning could result in death or serious injury.
Indicates a potentially hazardous situation with a medium level of risk.Failure
to observe this warning could result in death or serious injury.
Indicates a potentially hazardous situation with a low level of risk. Failure to
observe this warning may result in minor or moderate injury. May also be used
with property damage.
Potentially hazardous situation. Failure to observe this warning may result in
property damage. Is not used for personal injury.
Arrangement and typographic structure of the warnings
Type of hazard and respective source!
Potential consequence(s) in case of non-observance (option)
→Measures to avoid the danger
→Further measure(s)
6
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Safety instructions AMExC 01.1

Safety alert symbol warns of a potential personal injury hazard.
The signal word (here: DANGER) indicates the level of hazard.
1.4. References and symbols
The following references and symbols are used in these instructions:
Information The term Information preceding the text indicates important notes and information.
Symbol for CLOSED (valve closed)
Symbol for OPEN (valve open)
Important information before the next step.This symbol indicates what is required
for the next step or what has to be prepared or observed.
< > Reference to other sections
Terms in brackets shown above refer to other sections of the document which provide
further information on this topic.These terms are either listed in the index, a heading
or in the table of contents and may quickly be found.
7
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Safety instructions

2. Identification
2.1. Name plate
Each device component (actuator, controls, motor) is equipped with a name plate.
Figure 1: Arrangement of name plates
[1] Actuator name plate
[2] Controls name plate
[3] Motor name plate
[4] Additional plate, e.g. KKS plate (Power Plant Classification System)
[5] Explosion protection approval plate
Description of actuator name plate
Figure 2: Actuator name plate (example)
[1] Name of manufacturer
[2] Address of manufacturer
[3] Type designation (see explanation below)
[4] Commission number (see explanation below)
[5] Actuator serial number (see explanation below)
[6] Operating time in [s] for a part-turn movement of 90°
[7] Torque range in direction CLOSE
[8] Torque range in direction OPEN
[9] Lubricant type –[10] enclosure protection
[11] Permissible ambient temperature
[12] Can be assigned as an option upon customer request
[13] Can be assigned as an option upon customer request
8
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Identification AMExC 01.1

Type designation Figure 3:Type designation (example)
1. Type and size of actuator
2. Flange size
3. Ex marking
Type and size
These instructions apply to the following devices types and sizes:
Part-turn actuators for open-close duty: SQEx 05.2, 07.2, 10.2, 12.2, 14.2
Part-turn actuators for modulating duty: SQREx 05.2, 07.2, 10.2, 12.2, 14.2
Ex marking
Table 1: Marking for explosion protection (with example)
1b3a-/
1st position: Not used
–
2nd position: Motor type
SDX or VDX:: 3-phase AC motora
3rd position: Protection type of electrical connection
Terminal compartment Ex eincreased safety:
Types: KP, KPH or KES
3
Terminal compartment Ex dflameproof enclosure:
Type: KES-Exd
4
4th position: Protection type of position transmitter
Without intrinsically safe electric circuita Electric circuit Ex iIntrinsic safety:
Type: RWG 5020.2Ex
b
5th position: Protection type Ex fieldbus
No Ex fieldbus1 Ex nL non sparking
Type: FNICO
2
Ex ic non sparking
Type: FISCO
3
Commission number An order-relevant commission number (order number) is assigned to each device.
This commission number can be used to directly download the wiring diagram (in
German and English language), inspection records and further information regarding
the device from the Internet:http://www.auma.com.For some details, the customer
number might be required.
Actuator serial number Table 2: Description of serial number (with example)
N S 123451205
1st + 2nd position: Assembly in week
In our example:Week 0505
3rd + 4th position:Year of manufacture
In our example:Year of manufacture: 201212
All other positions Internal works number for unambiguous product identificationN S 12345
9
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Identification

Description of controls name plate
Figure 4: Controls name plate
[1] Type designation
[2] Commission number
[3] Wiring diagram
[4] Control
Type designation AMExC 01.1 = actuator controls AUMA MATIC
Control 24V DC = Control via parallel interface at 24 V DC control voltage.
115V AC = Control via parallel interface at 115 V AC control voltage.
0/4 –20 mA = Control via parallel interface via analogue input 0/4 –20 mA.
Description of approval plate in explosion-proof version
Figure 5: Approval plates in explosion-proof version (examples)
[1] Ex symbol. CE mark, number of test authority
[2] Ex certificate (number)
Classification:
[3] Electrical gas explosion protection
[4] Electrical dust explosion protection
[5] Non-electrical explosion protection
[6] Threads for line bushings at electrical connection
[7] Not used
2.2. Short description
Part-turn actuator Definition in compliance with EN ISO 5211:
A part-turn actuator is an actuator which transmits a torque to the valve for less than
one full revolution.It need not be capable of withstanding thrust.
AUMA part-turn actuators are driven by an electric motor. A handwheel is provided
for manual operation.Switching off in end positions may be either by limit or torque
seating. Controls are required to operate or process the actuator signals.
Actuator controls The AUMA MATIC actuator controls are used to operate AUMA actuators and are
supplied ready for use.The controls can be mounted directly to the actuator but also
separately on a wall bracket.The functions of the AUMA MATIC controls include
standard valve control in OPEN - CLOSE duty, position indications and different
signals right through to position control.
Local controls Operation (via push buttons), setting and indication can be performed directly at the
controls (contents of these instructions).
10
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Identification AMExC 01.1

3. Transport, storage and packaging
3.1. Transport
For transport to place of installation, use sturdy packaging.
Hovering load!
Risk of death or serious injury.
→Do NOT stand below hovering load.
→Attach ropes or hooks for the purpose of lifting by hoist only to housing and NOT
to handwheel.
→Actuators mounted on valves: Attach ropes or hooks for the purpose of lifting
by hoist to valve and NOT to actuator.
→Actuatorsmountedto gearboxes:Attachropesor hooks forthe purposeoflifting
by hoist only to the gearbox using eyebolts and NOT to the actuator.
→Actuators mounted to controls: Attach ropes or hooks for the purpose of lifting
by hoist only to the actuator and NOT to the controls.
3.2. Storage
Danger of corrosion due to inappropriate storage!
→Store in a well-ventilated, dry room.
→Protect against floor dampness by storage on a shelf or on a wooden pallet.
→Cover to protect against dust and dirt.
→Apply suitable corrosion protection agent to uncoated surfaces.
Long-term storage If the device must be stored for a long period (more than 6 months) the following
points must be observed in addition:
1. Prior to storage:
Protect uncoated surfaces, in particular the output drive parts and mounting
surface, with long-term corrosion protection agent.
2. At an interval of approx. 6 months:
Check for corrosion.If first signs of corrosion show, apply new corrosion protec-
tion.
3.3. Packaging
Our products are protected by special packaging for transport when leaving the
factory.The packaging consists of environmentally friendly materials which can easily
be separated and recycled.We use the following packaging materials: wood,
cardboard, paper, and PE foil.For the disposal of the packaging material, we
recommend recycling and collection centres.
11
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Transport, storage and packaging

4. Assembly
4.1. Mounting position
AUMA actuators and actuator controls can be operated without restriction in any
mounting position.
4.2. Handwheel fitting
Information For transport purposes, handwheels from a diameter of 400 mm are supplied separ-
ately.
Figure 6: Handwheel
[1] Spacer
[2] Input shaft
[3] Handwheel
[4] Circlip
1. If required, fit spacer [1] onto input shaft [2].
2. Slip handwheel [3] onto input shaft.
3. Secure handwheel [3] using the circlip [4] supplied.
4.3. Actuator: mount to valve
Danger of corrosion due to damage to paint finish and condensation!
→Touch up damage to paint finish after work on the device.
→After mounting, connect the device immediately to electrical mains to ensure
that heater minimises condensation.
The actuator is mounted to the valve using a coupling.
12
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Assembly AMExC 01.1

Figure 7: Coupling fitting dimensions
[1] Coupling
[2] Valve shaft
[3] Grub screw
[4] Screw
Table 3: Coupling fitting dimensions
Z max [mm]Y max [mm]X max [mm]Type, size - output mounting flange 4023SQEx/SQREx 05.2-F05 4023SQEx/SQREx 05.2-F07 4023SQEx/SQREx 07.2-F07 6623SQEx/SQREx 07.2-F10 5054SQEx/SQREx 10.2-F10 8254SQEx/SQREx 10.2-F12 62105SQEx/SQREx 12.2-F12 102105SQEx/SQREx 12.2-F14 77108SQEx/SQREx 14.2-F14 127108SQEx/SQREx 14.2-F16
1. Use handwheel to run actuator to mechanical end stop.
Information: Assemble valve and actuator in the same end position.
- For butterfly valves: Recommended mounting position is end position
CLOSED.
- For ball valves: Recommended mounting position is end position OPEN.
2. Thoroughly degrease mounting faces of the output mounting flanges.
3. Apply a small quantity of grease to the valve shaft [2].
4. Place coupling [1] onto valve shaft [2] and secure against axial slipping by using
a grub screw, a circlip or a screw.Thereby, ensure that dimensions X,Y or Z
are observed (refer to figure and table <Coupling fitting dimensions>).
5. Apply non-acidic grease at splines of coupling.
6. Fit actuator.
Information: Ensure that the spigot (if provided) fits uniformly in the recess
and that the flanges are in complete contact.
7. If flange bores do not match thread:
7.1 Slightly rotate handwheel until bores line up.
7.2 If required, shift actuator position by one tooth on the coupling.
13
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Assembly

8. Fasten actuator with screws [4].
Information: We recommend applying liquid thread sealing material to the
screws to avoid contact corrosion.
→Fasten screws [4] crosswise with a torque according to table.
Table 4:Tightening torques for screws
Tightening torqueTA[Nm]Screws
Threads Strength class 8.8
11M6 25M8 51M10 87M12 211M16
4.4. Mounting positions of local controls
The mounting position of the local controls is selected according to the order.If, after
mounting the actuator to the valve or the gearbox on site, the local controls are in
an unfavourable position, the mounting position can be changed at a later date.Four
mounting positions are possible.
Figure 8: Mounting positions A and B
Figure 9: Mounting positions C and D
14
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Assembly AMExC 01.1

4.4.1. Mounting positions: modify
Flameproof enclosure, danger of explosion!
Risk of death or serious injury.
→Before opening, ensure that there is no explosive gas and no voltage.
→Handle cover and housing parts with care.
→Joint surfaces must not be damaged or soiled in any way.
→Do not jam cover during fitting.
1. Loosen screws and remove the local controls.
2. Loosen 3 screws of the board, turn board to the new position and fasten the
screws.
3. Check whether O-ring is in good condition, correctly insert O-ring.
4. Turn local controls into new position and re-place.
Cable damage due to twisting or pinching!
Risk of functional failures.
→Turn local controls by a maximum of 180°.
→Carefully assemble local controls to avoid pinching the cables.
5. Fasten screws evenly crosswise.
15
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Assembly

5. Electrical connection
5.1. Basic information
Danger due to incorrect electrical connection
Failure to observe this warning can result in death, serious injury, or property damage.
→The electrical connection must be carried out exclusively by suitably qualified
personnel.
→Prior to connection, observe basic information contained in this chapter.
→After connection but prior to applying the voltage, observe the <Commissioning>
and <Test run> chapters.
Wiring diagram/terminal
plan The pertaining wiring diagram/terminal plan (in German and English language) is
attached to the device in a weather-proof bag, together with these operation
instructions.It can alsobeobtainedfromAUMA(statecommissionno., referto name
plate) or downloaded directly from the Internet (www.auma.com).
Protection on site For short-circuit protection and for disconnecting the actuator from the mains, fuses
and disconnect switches have to be provided by the customer.
The current values for respective sizing is derived from the current consumption of
themotor(refertoelectrical data sheet) plus the current consumption ofthecontrols.
Table 5: Current consumption controls
Max. current consumptionMains voltage 575 mA100 to 120 V AC (±10 %) 275 mA208 to 240 V AC (±10 %) 160 mA380 to 500 V AC (±10 %) 500 mA24 V DC (+20 %/–15 %) and AC motor
Table 6: Maximum permissible protection
Max. protectionRated powerSwitchgear 16 A (gL/gG)up to 1.5 kWReversing contactor A1 16 A (g/R) I²t<1,500A²sup to 1.5 kWThyristor B1
If controls are mounted separately from actuator (controls on wall bracket):Consider
length and cross section of connecting cable when defining the protection required.
Power supply for the
controls (electronics) If the controls (electronics) are supplied externally with 24 V DC, the power supply
is smoothed via an internal 1,000 µF capacitor).When selecting a power supply,
care must be taken to consider the capacitor inrush current upon powering the unit
up.
Safety standards All externally connected devices shall comply with the relevant safety standards.
Cable installation in ac-
cordance with EMC Signal and bus cables are susceptible to interference.
Motor cables are interference sources.
●Lay cables being susceptible to interference or sources of interference at the
highest possible distance from each other.
●The interference immunity of signal and bus cables increases if the cables are
laid close to the earth potential.
●If possible, avoid laying long cables and make sure that they are installed in
areas being subject to low interference.
●Avoid long parallel paths with cables being either susceptible to interference or
interference sources.
●For the connection of remote position transmitters, screened cables must be
used.
16
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Electrical connection AMExC 01.1

Type of current, mains
voltage and mains fre-
quency
Type of current, mains voltage and mains frequency must match the data on the
motor name plate.
Figure 10: Motor name plate (example)
[1] Type of current
[2] Mains voltage
[3] Mains frequency (for 3-ph and 1-ph AC motors)
Connecting cables ●For device insulation, appropriate (voltage-proof) cables must be used.Specify
cables for the highest occurring rated voltage.
●Use connecting cables with a minimum temperature range of +80 °C.
●For connecting cables exposed to UV radiation (outdoor installation), use UV
resistant cables.
5.2. Connecting via Ex plug/socket connector with screw-type terminals (KP, KPH)
5.2.1. Terminal compartment: open
Figure 11: Ex plug/socket connector KPH, KP
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Terminal compartment
[5] Terminal board
Hazardous voltage!
Risk of electric shock.
→Disconnect device from the mains before opening.
1. Loosen screws [2] and remove cover [1].
➥Terminal compartment [4] is designed for explosion protection Ex e (increased
safety).The flameproof compartment (type of protection Ex d) remains hereby
closed.
17
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Electrical connection

2. Insert cable glands with Ex e approval and of size suitable for connection cables.
➥The enclosure protection IP…stated on the name plate is only ensured if suit-
able cable glands are used. Example: Name plate shows enclosure protection
IP68.
3. Seal cable entries which are not used with approved plugs suitable for the re-
quired protection type.
4. Insert the wires into the cable glands.
5.2.2. Cable connection
Table 7: Cross sections and tightening torques
Tightening torquesCross sectionsType 2 Nm(1.5)1) 2.5 –6 mm²
(flexible or solid)
Power terminals (U1, V1, W1)
PE connection 1 Nm0.75 –1.5 mm²
(flexible or solid)
Control contacts (1 to 50)
with small clamp washers1)
Danger of corrosion: Damage due to condensation!
→After mounting, commission the device immediately to ensure that heater min-
imises condensation.
1. Remove cable sheathing in a length of 120 –140 mm.
2. Strip wires.
→Controls max. 8 mm, motor 12 mm
3. For flexible cables:Use end sleeves according to DIN 46228.
4. Connect cables according to order-related wiring diagram.
Information: Two wires for each connection permitted.
→When using motor cables with a cross section of 1.5 mm²:Use small clamp
washers for connection to terminals U1, V1, W1 and PE (the small clamp
washers are provided in the electrical connection cover).
18
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Electrical connection AMExC 01.1

In case of a fault: Hazardous voltage while protective earth conductor is NOT
connected!
Risk of electric shock.
→Connect all protective earth conductors.
→Connect PE connection to external protective earth conductor of connecting
cables.
→Start running the device only after having connected the protective earth con-
ductor.
5. Tighten protective earth firmly to PE connection
Figure 12: PE connection
[1] PE connection, control cable
[2] PE connection, motor cable
Information Some actuators are equipped with an additional motor heater.The motor heater
minimises condensation in the motor.
5.2.3. Terminal compartment: close
Figure 13: Ex plug/socket connector KPH, KP
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Terminal compartment
[5] Terminal board
1. Clean sealing faces of cover [1] and housing.
2. Check whether O-ring [3] is in good condition, replace if damaged.
3. Apply a thin film of non-acidic grease (e.g.petroleum jelly) to the O-ring and
insert it correctly.
4. Fit cover [1] and fasten screws [2] evenly crosswise.
19
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
AMExC 01.1 Electrical connection

5. Fasten cable glands with the specified torque to ensure the required enclosure
protection.
5.3. Connecting via Ex plug/socket connector with terminal blocks (KES)
5.3.1. Terminal compartment: open
Figure 14: Ex plug/socket connector: left KES, right KES flameproof
[1] Cover
[2] Screws for cover
[3] O-ring
[4] Terminal compartment:Type of protection Ex e
[5] Terminal compartment:Type of protection Ex d
[6] Frame
Hazardous voltage!
Risk of electric shock.
→Disconnect device from the mains before opening.
1. Loosen screws [2] and remove cover [1].
➥Terminal compartments [4] and [5] are designed either in type of protection Ex
e (increased safety) or in type of protection Ex d (flameproof enclosure).Hereby,
the flameproof interior compartment of the actuator (Ex d) remains closed.
2. Insert cable glands with Ex e approval and suitable for connection cables.
➥The enclosure protection IP…stated on the name plate is only ensured if suit-
able cable glands are used. Example: Name plate shows enclosure protection
IP68.
3. Seal cable entries unused cable entries with approved plugs suitable for the
required protection type.
4. Remove cable sheathing and insert the wires into the cable glands.
5. Fasten cable glands with the specified torque to ensure required enclosure
protection.
20
SQEx 05.2 –SQEx 14.2 / SQREx 05.2 –SQREx 14.2
Electrical connection AMExC 01.1