SCHIEBEL ACTUSMART CM Series User manual

Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08

CONTENTS
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
Contents
Contents 2
Hazard Warnings 4
Operating Instructions for Actuators Type CM 5
1 Introduction/Notes........................................................... 5
2 General................................................................... 6
2.1 Overview.............................................................. 6
2.2 Serialnumberandtypelabel ............................................... 6
2.3 Operatingmode......................................................... 7
2.4 Protectionclass......................................................... 8
2.5 Mountingposition ....................................................... 8
2.6 Directionofrotation...................................................... 8
2.7 Protectiondevices....................................................... 9
2.7.1 Torque........................................................... 9
2.7.2 Motortemperature.................................................. 9
2.7.3 Inputfuse,thermalfuse .............................................. 9
2.8 Ambienttemperature..................................................... 9
2.9 Deliveryconditionoftheactuators ...........................................10
2.10 Informationnotice(tag) ................................................... 10
3 Packaging,transportandstorage...............................................11
3.1 General...............................................................11
3.2 Storage............................................................... 11
3.3 Long-termstorage.......................................................11
4 Installationinstructions ...................................................... 12
4.1 Mechanicalconnection....................................................12
4.2 Mountingpostionoftheoperatingunit......................................... 13
4.3 Electricalconnection .....................................................15
4.3.1 Powersupplyconnection ............................................. 15
5 Commisioning..............................................................16
5.1 General...............................................................16
5.2 Manualoperation........................................................ 16
5.3 Mechanical default settings, preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 UserLevelandPermissions................................................ 17
5.5 Endlimitsetting......................................................... 17
5.5.1 EndlimitOPEN.................................................... 17
5.5.2 EndlimitCLOSE ................................................... 20
5.6 Finalworks............................................................20
6 Maintenance...............................................................20
7 BatteryReplacement.........................................................22
8 Fuses ....................................................................22
9 Spareparts................................................................23
10 Lubricant recommendation, lubricant requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
10.1 Mainbody:-25to+60°C .................................................. 23
10.2 Mainbody:-40to+60°C .................................................. 23
10.3 Output type A and spindle drives (linear actuators) -40 to +60°C. . . . . . . . . . . . . . . . . . . . . . 23
10.4 Basiclubricantserviceinterval.............................................. 24
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 CONTENTS
11Training...................................................................24
12 Original Declaration of Incorporation of Partly Completed Machinery . . . . . . . . . . . . . . . . . . . 25
13DeclarationofConformity..................................................... 26
14DeclarationofConformity..................................................... 27
15Technicaldata..............................................................29
15.1 Binaryoutputs.......................................................... 29
15.2 Binaryinputs........................................................... 29
15.3 Analoginputs .......................................................... 31
15.4 Analogoutput ..........................................................32
15.5 Auxiliaryvoltageinputandoutput............................................ 32
15.6 Connections ........................................................... 33
15.6.1 Connections for non explosion-proof version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
15.6.2 Connections for explosion-proof version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
16ModeofoperationCM........................................................ 34
16.1 Miscellaneous..........................................................35
17TechnicaldataCM03......................................................... 35
17.1 StandardversionCM03................................................... 35
17.2 24VDCversionCM03....................................................35
17.3 400VversionCM03...................................................... 35
18TechnicaldataCM06......................................................... 36
18.1 StandardversionCM06................................................... 36
18.2 400VversionCM06......................................................36
19TechnicaldataCM12......................................................... 36
19.1 StandardversionCM12................................................... 36
20Characteristiccurves ........................................................ 37
20.1 Characteristiccurves-CM03............................................... 37
20.2 Characteristiccurves-CM06............................................... 38
20.3 Characteristiccurves-CM12............................................... 39
Spare parts ACTUSMART (ex)(r)CM03.V1.2 40
Spare parts ACTUSMART (ex)(r)CM06.V1.2 42
Spare parts ACTUSMART (ex)(r)CM12.V1.2 44
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
SEC-ENGLISH-Gefahrenhinweise-V1.00-20210701
Hazard Warnings
Hazard warnings in this manual indicate potential harm to the user or the product. For the person interacting
with the product, the level of risk includes consequences ranging from slight, up to lethal injuries. As for the
product, disobeying the warnings may cause damage to the equipment and/or void the warranty. Therefore,
said warnings are made apparent to instruct and warn the user, which precautions have to be made prior to
performing any actions described in this manual. The user must read and be familiar with the manual, before
performing any tasks as described in this manual.
Hazard warnings in this manual are presented in these three forms:
WARNING: These warning notices refer to personal safety.
Failure to obey these notices could result in personal injury
or death.
CAUTION: General precautions must be made. Failure to obey
these notices could result in personal injury and/or equipment
damage.
NOTE: Directs the user’s attention to essential information.
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
SEC-OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
Operating Instructions for Actuators Type CM
1 Introduction/Notes
NOTE: This IOM applies to ACTUSMART CM series actuators with a firmware version of 1600 or newer.
These operating instructions apply to SCHIEBEL actuators of the ACTUSMART CM series.
The scope of application covers the operation of industrial valves, e.g., globe valves, gate valves, butterfly
valves and ball valves. For other applications please consult with the factory.
The manufacturer shall not be liable for incorrect use and possible damage arising thereof. The risk shall be
borne solely by the user.
NOTE: Using the unit as intended also entails the observance of these operating instructions!
WARNING: When operating electrical equipment, certain
parts inevitably carry hazardous voltage levels. Work on
the electrical system or equipment must be carried out
only in accordance with electrical regulations by a qualified
electrician himself or by specially instructed personnel under
the control and supervision of a qualified electrician.
CAUTION: Maintenance instructions must be observed as other-
wise the safe operation of the actuator cannot be guaranteed.
WARNING: Failure to follow the warning information may
result in serious bodily injury or property damage. Qualified
personnel must be thoroughly familiar with all warnings
contained in this operating manual.
CAUTION: Proper transport, storage, installation, assembly and
careful commissioning are essential for proper and safe operation.
WARNING: When working in potentially explosive areas,
observe the European Standards EN 60079-14 ”Electrical
Installations in Hazardous Areas” and EN 60079-17 ”Inspec-
tion and Maintenance of Electrical Installations in Hazardous
Areas”.
WARNING: Maintenance work on open actuators may only be
conducted if these are de-energized. Reconnection during
maintenance is strictly prohibited.
5

2 General
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
2 General
The actuator of the ACTUSMART CM series is a compact rotary actuator with integrated controller for valve
operation. The integral multi-turn sensor allows setting the travel up to 1081) revolutions without opening the
housing.
2.1 Overview
3412
Figure 1: 1. . . Handwheel, 2. . . Control unit (operating unit), 3. . . Connection compartment 4. . . Gear compo-
nent
2.2 Serial number and type label
Each actuator of the ACTUSMART CM series carries a serial number. The serial number is a 10-digit number
that begins with the year and that can be read from the type label (see Figure 2) of the actuator (the type label
is located next to the handwheel – see Figure 3).
Using this serial number, SCHIEBEL can uniquely identify the actuator (type, size, design, options, technical
data and test report).
Figure 2: Type label
1
Figure 3: 1. . . Type label
Actuators which are suitable for operation in explosive atmosphere (see EU Directive 2014/34/EU and
EN 60079-0 Standard) are separately designated by a special type label (EEx, TÜV Standard, Figure 4).
1)Optional: Up to 1600 revs.
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 2 General
Figure 4: Type label of the actuator for operation in explosive atmosphere
Figure 5: Typenschlüssel der Antriebsserie (ex)CM
2.3 Operating mode
ACTUSMART CM actuators are suitable for open-loop control (S2 operating mode – on/off duty), closed-
loop control (S4 operating mode – modulating duty) and continuous mode (S9 operating mode) according to
EN 60034-1, and for operating modes class A, B, C according to DIN EN 22153.
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2 General
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
2.4 Protection class
ACTUSMART CM actuators by default meet IP 67 (EN 50629) protection.
CAUTION: The protection class specified on the type label is
only effective when the cable glands also provide the required
protection class, the cover of the connection compartment is
carefully screwed closed, and the mounting position (see section
2.5, page 8) is observed.
We recommend metallic screwed cable glands with a metrical thread. Furthermore, cable inlets that are not
needed must be closed with screw plugs.
CAUTION: On explosion-proof actuators, cable glands with
protection class EEx e acc. EN 60079-7 must be used. After
removing covers for assembly purposes or adjustment work,
take special care upon reassembly so that seals are not damaged
and remain properly fastened. Improper assembly may lead to
water ingress and to failures of the actuator.
CAUTION: The cover of the control unit – the operating unit (see
Figure 1, page 6) – must not be opened!
NOTE: Allow a certain sag in the connector cables before reaching the screwed cable glands so that water can
drip off from the connector cables without running to the screwed cable glands. This way, forces acting on the
screwed cable glands are also reduced (see section 2.5).
2.5 Mounting position
Generally, the installation position is irrelevant. However, based on practical experience, it is advisable to
consider the following for outdoors use or in splash zones:
• Mount actuators with cable inlet facing downwards.
• Ensure that sufficient cable slack is available.
2.6 Direction of rotation
Unless specifically ordered otherwise, the standard direction is (see Figure 6 and Figure 7):
•right turning (clockwise) = CLOSING
•left turning (counter-clockwise) = OPENING
Clockwise rotation of the actuator is given when the output shaft turns counter clockwise when looking at the
output shaft.
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 2 General
Figure 6: clockwise = close Figure 7: counter-clockwise = close
NOTE: All specifications in this operating manual refer to the standard direction of rotation.
2.7 Protection devices
2.7.1 Torque
ACTUSMART actuators provide electronic torque monitoring.
The switch-off torque can be modified in the controller menu for each direction separately. By default, switch-off
torque is set to the ordered value. If no torque was specified with the order, the actuator is supplied from the
factory with the maximum configurable torque.
For more information, see Operating Instructions for ACTUSMART Control Units.
2.7.2 Motor temperature
All ACTUSMART CM actuators are normally equipped with motor winding temperature sensors, which protect
the motor against excessive winding temperature.
The display will show the corresponding error upon exceeding the permissible motor temperature (see Oper-
ating Instructions for ACTUSMART Control Units).
2.7.3 Input fuse, thermal fuse
The frequency inverter has an input fuse and, in the case of explosion-proof versions, also a thermal fuse. If
one of these fuses trips, there is a serious fault. The frequency converter is permanently disconnected from
the supply and must be replaced or the fuse must be replaced.
Depending on the actuator type, the following input fuses are used:
Antriebsart Versorgungsspannung Nennstrom
(ex)CM12 1x110...240VAC 10AT
exCM12 3x380...480VAC 10AT
(ex)CM25 1x110...240VAC 10AT
exCM25 3x380...480VAC 10AT
NOTE: Ceramic tube, 5mm x 20mm time-delay fuses acc. to IEC 60127-2 shall be used for replacement.
2.8 Ambient temperature
Unless otherwise specified upon ordering, the following operating temperatures apply:
• On/off duty (open-loop control) -25 to +60°C
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2 General
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
• Modulating duty (closed-loop control) -25 to +60°C
• explosion-proof version -20 to +40°C (acc. EN 60079-0)
• explosion-proof version with extended temperature range -40 to +70°C
• exCm12 Falisafe verion with extended temperature range: -40 to 60°C
CAUTION: The maximum operating temperature can also depend
on further order-specific components. Please refer to the technical
data sheets to confirm the as-delivered product specifications.
2.9 Delivery condition of the actuators
For each actuator, an inspection report is generated upon final inspection. In particular, this comprises a full
visual inspection, calibration of the torque measurement in connection with an extensive run examination and
a functional test of the micro controllers.
These inspections are conducted and documented according to the quality system and can be made available
if necessary.
The basic setting of the end position must be performed after assembly on the actuator.
CAUTION: Commissioning instructions (see section 5, page 16)
must be strictly observed!
During assembly of the supplied valves at the factory, end postions are set and documented by attaching a
label (see Figure 8). During commissioning at the plant, these settings must be verified.
Figure 8: Label
2.10 Information notice (tag)
Each actuator is provided with a bilingual tag containing key information, which is attached to the handwheel
after final inspection. This tag also shows the internal commission registration number (see Figure 9, page
11).
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 3 Packaging, transport and storage
Figure 9: Tag
3 Packaging, transport and storage
Depending on the order, actuators may be delivered packed or unpacked. Special packaging requirements
must be specified when ordering. Please use extreme care when removing or repackaging equipment.
CAUTION: Use soft straps to hoist the equipment; do not attach
straps to the handwheel. If the actuator is mounted on a valve,
attach the hoist to the valve and not to the actuator.
3.1 General
The connection compartment of ACTUSMART CM actuators contains 5 g of factory supplied silica gel.
NOTE: Please remove the silica gel before commissioning the actuator (see section 5, page 16).
3.2 Storage
NOTE: Please observe the following measures to avoid damage during the storage of actuators:
• Store actuators in well-ventilated, dry premises.
• Protect against floor dampness by storing actuators on wooden grating, pallets, mesh boxes or shelves.
• Protect the actuators against dust and dirt with plastic foil.
• Actuators must be protected against mechanical damage.
• The storage temperature must be between -20°C and +40°C.
It is not necessary to open the controller of the actuator for servicing batteries or similar operations.
3.3 Long-term storage
NOTE: If you intend to store the actuator for more than 6 months, additionally follow the instructions below:
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4 Installation instructions
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
• The silica gel in the connection compartment must be replaced after 6 months of storage (from date of
delivery from SCHIEBEL’s factory in Vienna).
• After replacing the silica gel, brush the connection cover seal with glycerine. Then, carefully close the
connection compartment again.
• Coat screw heads and bare spots with neutral grease or long-term corrosion protection.
• Amend damaged paintwork arising from transport, improper storage, or mechanical influences.
WARNING: For explosion-proof actuators, it is not allowed
to extensively overpaint the actuator. According to the stan-
dard, in order to avoid electrostatical charge, the maximum
thickness of the varnish is limited to 200 µm.
• Every 6 months, all measures and precautions for long-term storage must be checked for effectiveness,
and corrosion protection and silica gel must be renewed.
NOTE: Failure to follow the instructions above may lead to condensation which can damage the actuator.
4 Installation instructions
Figure 10: 1. . . mounting flange, 2. . . bore pattern G0/F10, 3. . . centring ring, 4. . . bore pattern F07, 5. . . shaft
connection, 6. . . ground connection
Installation work of any kind on the actuator may only be performed by qualified personnel.
4.1 Mechanical connection
see Figure 10, page 12
Check whether the valve flange, actuator flange and valve shaft correspond to the shaft connector of the
actuator. For output type "Am" (threaded bushing with bore), check whether the thread of the valve matches
the thread of the actuator.
In general, proceed as follows:
12

Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 4 Installation instructions
• Clean the bare parts of the actuator uncoated with corrosion protection.
• Thoroughly clean the screw mounting surfaces of the valve.
• In the actuator, appropriately lubricate the output shaft and the valve of the driven shaft.
• In the "Am" version, ensure that the valve bushing is amply lubricated.
• Attach the actuator to the valve or gearbox.
• Tighten fastening screws (torque according to table below).
• By means of the handwheel, check the ease of movement of the actuator-valve connection.
Thread Tightening [Nm] for screws with strength class
8.8 A2-70 / A4-70
M6 11 8
M8 25 18
M10 51 36
M12 87 61
M16 214 150
M20 431 294
M30 1489 564
NOTE: For output type A (unbored threaded bushing), you must sufficiently lubricate both needle bearings in
the output form after processing and cleaning the spindle nut.
For this purpose, use the optional SCHIEBEL grease lubricant or a grease lubricant according to our rec-
ommendation (see section 10.3, page 23).
4.2 Mounting postion of the operating unit
The mounting postion of the operating unit can be rotated in 90° steps.
CAUTION: During installation, the position of the control unit in
relation to direct sunlight must be observed. It is recommended to
protect the unit from direct sunlight (roof, installation position) to
avoid possible malfunctions.
-90°
+90°
+180°
Figure 11
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4 Installation instructions
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
• Disconnect the actuator and control system from the power supply.
• To prevent damage to the electronic components, both the control system and the person have to be
earthed!
• Unscrew the bolts for the interface surface and carefully remove the service cover.
• Turn service cover to new position and put back on.
–Ensure correct position of the O-ring.
–Turn service cover by max. of 180°.
–Put service cover on carefully so that no cables get wedged in.
• Screw the bolts shut evenly in a crosswise sequence. IMPORTANT: max. torque 5 Nm
14

Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 4 Installation instructions
4.3 Electrical connection
WARNING: Electrical connections may only be carried out
by qualified personnel. Please observe all relevant national
security requirements, guidelines, and regulations.
Please check the steps below upon connecting the actuator.
• The equipment should be de-energized before working on electrical connections.
• Confirm the absence of electrostatic discharges during the connection.
• Connect the ground screw first.
• The line and short circuit protection must be done on the system side.
• The ability to unlock the actuator for maintenance purposes must be provided.
• For the dimensioning, the rated current is to be used (see Technical Data).
• Check whether the power supply (voltage, frequency) is consistent with the connection data (see type
label – Figure 2, page 6)
• The connection of electrical wiring must follow the circuit diagram. This can be found in the appendix of
the documentation. The circuit diagram can be ordered from SCHIEBEL by specifying the serial number.
NOTE: When using options, such as a Profibus connection, the relevant guidelines must be followed.
4.3.1 Power supply connection
ACTUSMART CM actuators feature an integrated motor controller, i.e. only a connection to the power supply
is required.
In non explosion-proof actuators, the wiring uses a connector independent from control signals (see Figure
12, page 15).
18
2
3
76
5
4
Figure 12: 1. . . Metric screw M32x1,5, 2. . . M40x1,5, 3. . . M25x1,5, 4. . . Plug insert Han6E (for power sup-
ply), 5. . . Plug insert Han24E (for control cables), 6. . . Connector for options, 7. . . Connector plate,
8. . . Connecting housing
The connection on explosion-proof actuators or, on special request also on non explosion-proof actuators)
will be made via terminals (see Figure 13).
15

5 Commisioning
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
Figure 13: Terminal box: 1. . . Metric screw M40x1,5, 2. . . 2 pcs. M20x1,5, 3. . . Terminals for the control
signals, 4. . . Terminals for the power supply, 5. . . Terminal for ground connection, 6. . . Outside ground
connection
CAUTION: If, during outdoor installation, commissioning is not
carried out immediately after electrical connection, the power
supply must be connected at a minimum to achieve a heating
effect. In this case, the silica gel may remain in the connection
compartment until commissioning. See section 3.3, page 11.
5 Commisioning
Before commissioning, ensure that the actuator is correctly assembled and electrically connected (see section
4, page 12).
NOTE: Remove silica gel from the connection compartment.
5.1 General
CAUTION: During commissioning and after every disassembly of
the actuator, the electric end positions (see section 5.5, page 17)
must be reset.
5.2 Manual operation
The use of a differential gearbox in the handwheel assembly makes mechanical switching unnecessary during
manual operation.
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 5 Commisioning
CAUTION: Manual operation with mechanical or electromechan-
ical equipment (such as: lever, drilling machine, etc.) is NOT
ALLOWED, as this may damage the product.
5.3 Mechanical default settings, preparation
The use of multi-turn sensors makes mechanical settings unnecessary.
CAUTION: Before the motorised operation of the valve, it is
essential to check and eventually adjust torque settings.
5.4 User Level and Permissions
In order to edit and/or show certain parameters, a user level with the necessary permissions has to be set as
current user level. The current user level may be set temporarily in the "U User Level" menu item. It is also
possible to set the default user level, which will be set as the current user level until set otherwise ("U User
Level" or default user level). Please refer to the Operating Instructions for ACTUSMART Control Units for more
information about the user levels.
5.5 End limit setting
A detailed description of the operation of the ACTUSMART CM controller can be found in the Operating In-
structions for ACTUSMART Control Units.
NOTE: Please make sure, that the current user level has the permission to edit the end limits.
5.5.1 End limit OPEN
Set the selector switch and control switch to the center position.
Figure 14: 1. . . Selector switch (red), 2. . . Control switch (black)
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5 Commisioning
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
Scroll through the menu with the control switch. Move the control switch towards the first menu item "P 1.1
End limit – Open".
Figure 15
Figure 16
Afterwards, flip up the selector switch slightly and let it snap back to its neutral position .
Figure 17
⇒
Figure 18
⇒
Figure 19
This changes the bottom line of the display from "EDIT?" to "SAVE?"
Figure 20 Figure 21
Then, push down the selector switch until it snaps into place. In doing so, the bottom right now on the display
will show "TEACHIN"
CAUTION: Once the display shows "TEACHIN", use the operating
switch (black switch) to start the motorised operation of the
actuator. In this mode, no travel-dependent switch off occurs in
the end position.
CAUTION: Please note that, during motor operation, only torque
monitoring remains active, as travel adjustment will happen
subsequently. Therefore, please check beforehand whether the
maximum torque has been already parameterised.
Absolute and relative values on the display will change continuously along with position changes.
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Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08 5 Commisioning
Figure 22
Figure 23
Manually move the actuator with the handwheel (see section 2.1, page 6, or section 2.6, page 8) or by motor
via the operating switch (black switch) to the end position OPEN of the valve.
• Absolute value: Absolute value of the position feedback
• Relative value: The value to the other end postion
1
Figure 24: 1. . . Absolute value
When the desired end position OPEN of the valve is reached, move the selector switch back to the middle
position. Thus, the line "TEACHIN" disappears.
Figure 25
Figure 26
In order to confirm the end position (save), slightly flip up the selector switch towards and let it snap back to
its neutral position.
19

6 Maintenance
Operating Instructions for Actuators Type CM
OM-ENGLISH-CM-Grundantrieb-V1.00-2023.08.08
Figure 27
⇒
Figure 28
⇒
Figure 29
This changes the bottom line of the display for "SAVE?" to "EDIT?" and the end position is stored.
Figure 30 Figure 31
5.5.2 End limit CLOSE
Use menu item "P 1.2 End limit - End limit CLOSE" as for End limit OPEN
5.6 Final works
Following commissioning, check for proper sealing the covers to be closed and cable inlets (see section 2.4,
page 8). Check actuator for paint damage (by transport or installation) and repair if necessary.
6 Maintenance
WARNING: Maintenance work on open actuators may only be
conducted if these are de-energized. Reconnection during
maintenance is strictly prohibited. Work on the electrical
system or equipment must be carried out only in accordance
with electrical regulations by a qualified electrician himself
or by specially instructed personnel under the control and
supervision of a qualified electrician.
WARNING: For explosion-proof actuators, it is necessary
to wait a certain time after switching off before opening the
cover; see explosion protection sticker (Picture 32).
Following times are specified for the actuators.
• CM12: 15 min
20