ZPA Pecky, a.s. MODACT MOKPED 100 Ex User manual

Type numbers 52 320 - 52 322
12/18
INSTALLATION AND OPERATING INSTRUCTIONS
Electric single-turn rotary actuators
in non-explosive version, with constant
velocity of changing-over the output part
– IP 67 protection

ZPA Pečky, a.s. is certified company in accordance with ISO 9001 as amended.

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The Installation and Operating Instructions specify basic principles for mounting, connection, adjustment, operation,
maintenance, and repairs of electric explosion-proof actuators. The fundamental prerequisite is that assembly, operation,
maintenance, and revisions are performed by skilled technicians qualified for operation and works on explosion-proof
electric devices and the works are supervised by a professionally qualified expert instructed in a demonstrable way.
1. APPLICATION
The actuators are designed for shifting valves with reversing rotary motion in circuits of remote control and
automatic control. They can also be used for other devices for which they are suitable with their characteristics and
parameters. Special cases are to be discussed with the manufacturer.
MODACT MOKPED Ex electric actuators in non-explosive version are intended for control and operation in an
environment with danger of explosion of explosive gaseous atmosphere in zone 1 and zone 2 and for areas with
flammable dust in zone 21 and zone 22 according to ČSN EN 60079-10 (332320). The actuators are designed in
compliance with the standards ČSN EN 60079-0:2013 and ČSN EN 60079-1:2008 for explosive gaseous atmosphere
and with the standard ČSN EN 60079-31:2014 for areas with flammable dust.
These are non-explosive electric appliances of the group II, category 2, in areas where occurrence of explosive
atmosphere created by gases, vapours or mist – “G“ is probable. The actuators can also be used in areas with
flammable dust according to ČSN EN 50281-1-3. The actuators are labelled with a sign of protection against explosion
and symbols of the group and category of appliance II 2GD.
The entire electric actuator is designed as explosion-proof enclosure “d” with marking according to the performed
certification as follows:
II 2GD Ex d IIC T6 Gb -25 ≤ Ta ≤ 55 °C
Ex d IIB T6 Gb -50 ≤ Ta ≤ 55 °C
Ex tb IIIC T80°C Db -50 ≤ Ta ≤ 55 °C
The electric actuator must not be subjected to heavy charging, eg. an intense flow of a dust-air mixtures in order
to prevent the occurrence of creeping electrostatic discharges.
Nomenclature
Environment with explosion danger – Environment in which an explosive atmosphere can be created.
Explosive gaseous atmosphere – A mixture of flammable substances (in the form of gases, vapours or mist)
with air under atmospheric conditions in which, after initialization, burning
spreads out to non-consumed mixture.
Explosive dust atmosphere – mixture of flammable substances in the form of gas, vapour, mist and dust
with air, under atmospheric conditions, in which, after ignition, combustion
spreads to the entire unburned mixture.
Maximum surface temperature – The highest temperature created during operation under the most unfavourable
conditions (however within approved limits) on any surface part of the electric
device, which could induce ignition of surrounding atmosphere.
Closure – All walls, doors, covers, cable bushings, shafts, rods, pull-rods, etc. which
contribute to the type of protection against explosion and/or to the level of
protection (IP) of the electric device.
CONTENS
1. Application ...........................................................................................................3
2. Operating conditions; Operating position ........................................................................5
3. Operation mode; Service life of actuators ........................................................................7
4. Technical data .......................................................................................................8
5. Actuator outfit .......................................................................................................8
6. Elektric parameters .................................................................................................9
7. Description ...........................................................................................................9
8. Adjustment of electric actuator .................................................................................. 10
9. Assembling and putting the electric actuator into operation ................................................ 31
10. Operation and maintenance of electric actuators ............................................................. 40
Tables ............................................................................................................. 42–44
Dimensions of the actuators MODACT MOKPED Ex ........................................................... 45–48
List of spare parts ..................................................................................................... 49

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Explosion-proof closure „d“ – Type of protection in which the parts capable of causing ignition of an
explosive atmosphere are installed inside the closure; in case of internal
explosion this closure should withstand pressure of the explosion and
prevent spreading of the explosion into the surrounding atmosphere.
Zone 1 – A space where probability of occurrence of an explosive atmosphere of
a mixture of flammable substances in the form of gas, vapour or mist
with the air is occasional under normal operation.
Zone 2 – A space where occurrence of an explosive gaseous atmosphere formed of
a mixture of flammable substances in the form of gas, vapour or mist with
the air is improbable under normal operation; however, if this atmosphere
is formed it will only persist for a short period of time.
Zone 21 – An area in which the explosive atmosphere is created by a cloud of whirled
flammable dust in air formed in normal operation is occasional.
Zone 22 – An area in which an explosive mixture is not likely to occur in normal operation
and if it occurs it will exist only for a short time.
Applied Standards
The following basic standards apply to explosion-proof actuators:
ČSN EN 60079-14 Regulations for electrical devices in areas with a danger of explosion of flammable gasesand
vapours.
ČSN IEC 60721 Types of environment for electrical devices.
ČSN EN 60079-0 Electrical devices for explosive gaseous atmosphere. General requirements.
ČSN EN 60079-1 Electrical devices for explosive gaseous atmosphere. Explosion-proof closure “d“.
ČSN EN 60079-10 Electrical devices for explosive gaseous atmosphere. Specification of dangerous areas.
ČSN 33 0371 Non-explosive mixtures. Classification and testing methods.
ČSN 34 3205 Operation of electric rotating machines and work with them.
ČSN EN 1127-1 Explosive atmospheres – Explosion prevention and protection.
ČSN EN 60079-31 Explosion properties. Equipment protected against dust ignition with “t“ closure.
Designation of explosion-proof properties
It consists of the following symbols:
Ex Electric device complies with the standard ČSN EN 60079-0 and related standards for various types of
protection against explosion.
d Designation of the type of protection against explosion, explosion-proof closure according to ČSN EN 60079-1.
tb Protection by enclosure “t“ – according to ČSN EN 60079-31.
IIC, IIB Designation of the group of explosion-proof electric device according to ČSN EN 60079-0.
IIIC Designation of explosion-proof electric equipment for explosive atmospheres with combustible dust, according
to standard ČSN EN 60079-0.
T6 Designation of temperature class of explosion-proof electric device of the Group II according to ČSN EN 60079-0.
T80°C Designation of explosion-proof electric equipment for explosive atmospheres with combustible dust, according
to standard ČSN EN 60079-0.
Gb Designation of explosion-proof equipment for explosive gaseous atmospheres, having a “high“ level of protection,
and not a source of ignition in normal operation or during expected malfunctions; according to ČSN EN 60079-0.
Db Designation of explosion-proof equipment for explosive dust atmospheres, having a “high“ level of protection,
and not a source of ignition in normal operation or during expected malfunctions; according to ČSN EN 60079-0.
IP 67 Identification of the degree of protection; according to ČSN EN 60079-0 and ČSN EN 60529.
Data on actuators
The actuators are fitted with the following plates:
1) Plate with data of non-explosive closures: or

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2) Rating and instrument plate contains:
– manufacture's name and address
– type designation of product (type number)
– serial number
– year of production
– rated value of tripping torgue Nm
– rated speed of shifting s/90°
– rated working stroke °
– designation of protective enclosure of actuator IP
– weight of actuator kg
– mark of conformity CE
– electrical data of power circuits (voltage and frequency, current and output of electric motor)
– electrical data of control circuit of micro-switches (voltage, current)
– position transmitter (resistance, voltage or current)
3) Warning plate
4) Plates on covers with marking of used protection against explosion
or front label No. 23354393 for design with local control switches and display.
2. OPERATING CONDITIONS, OPERATING POSITION
Operating conditions
The MODACT MOKPED Ex actuators should withstand the effect of operating conditions and external influences, Classes
AC1, AD7, AE6, AF2, AG2, AH2, AK2, AL2, AM-2-2, AN2, AP3, BA4, BC3 a BE3 according to ČSN 33 2000-5-51 ed. 3.
Temperature and humidity
The operating temperature for actuators MODACT MOKPED Ex is -25 °C to +55 °C or -50 °C to +55 °C, relative
humidity from 10% to 100% with condensation.
or
6666

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Classes of external effects – excerpt from ČSN 33 2000-5-51 ed. 3.
Class:
1) AC1 – elevation above sea level ≤ 2000 m
2) AD7 – water occurrence – shallow dipping
3) AE6 – strong dustiness
4) AF2 – occurrence of corrosive or polluting substances from atmosphere. Presence of corrosive substances is significant.
5) AG2 – medium mechanical stress by impacts – common industrial processes.
6) AH2 – medium mechanical stress by vibrations – common industrial processes.
7) AK2 – serious risk of growth of vegetation and moulds.
8) AL2 – serious danger of the occurrence of animals (insects, birds, small animals).
9) AM-2-2 – normal level of the signal voltage. No additional requirements.
10) AN2 – medium solar radiation with intensities > 500 W / m2 and ≤ 700 W / m2.
11) AP3 – medium seismic effects; acceleration > 300 Gal ≤ 600 Gal.
12) BA4 – personal abilities. Instructed people.
13) BC3 – frequent contact with the earth potential. Persons coming frequently into contat with “live“ parts or standing
on a conducting base.
14) BE3 – danger of explosion, production and storage of explosive substances.
MOKPED Ex electric actuators designed for an ambient temperature of -50 ° C to +55 ° C must be resistant to
operating conditions characterized by an ambient temperature range from -50 ° C to +55 ° C.
The actuators are designed with three-phase motors.
The aforementioned actuators will be designated with the letter F at the last place of the supplementary type num-
ber: thus 5232x.xxxxEDF.
In all denominations of explosion-proof design of electric actuators Type No. 5232x.xxxxEDF the designation
of subgroup II of explosion-proof electric device according to ČSN EN 60079-0 changes from IIC to IIB, i.e. to
Ex d IIB T6 Gb.
Corrosion protection
Actuators are standardly delivered with surface treatment corresponding to category of corrosion aggressiveness
C1, C2 and C3 according to ČSN EN ISO 12944-2.
On customer's request is possible to do surface treatment correcponding to category of corrosion aggressiveness
C4, C5-I and C5-M.
In following table is provided and overview of environment for each categories of corrosion aggressiveness accor-
ding to ČSN EN ISO 12944-2.
Corrosion
aggressiveness
level
Example of typical environment
Outdoor Indoor
C1 Heated buildings with clean atmosphere
(very low) e.g. offices, shops, schools, hotels.
C2 Atmosphere with low level of pollution. Unheated buildings, in which may occur
(low) Mostly outdoor areas. condensation, e.g. stocks, sports halls.
C3 Urban industrial atmospheres, Production areas with high humidity and low air
(middle) mild pollution of sulfur dioxide. pollution, e.g. food industry, processing
Seaside areas with middle salinity. factories, breweries.
C4 Industrial areas and seaside areas Chemical plants, swimming pools,
(high) with middle salinity. seaside shipyard.
C5-I
(very high Industrial areas with high humidity Buildings or areas with predominantly continuous
– industrial) and aggressive atmosphere. condensation and high air pollution.
C5-M
(very high Seaside areas with high salinity. Buildings or areas with predominantly
– seaside) continuous condensation and high air pollution.

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When located in open areas, we recommend you to provide a light shelter to prevent direct impact of
atmospheric conditions. The shelter should overreach the actuator’s ground plan by at least 10 cm at the level
of 20 to 30 cm.
When actuators are located in a working environment with temperatures below -10°C, with relative humidity exceeding
80%, below a shelter, or in cold areas, it is always necessary to use the thermal element that is mounted to all actuators.
The heating elements used are resistors TRA 25 5K1/J with a power output of 25W and resistance of 5 kOhm (lo-
cated in the Control area of the actuator) and TRA 15 10K/J with a power of 15 W and a resistance 10 kOhm (located
in the area of local control). They are switched by a switch for the heating resistor located on the source circuit board.
Computer program can be used to set the switching temperature in the range of -40 to +70 °C. Permanent heating can
be reliably ensured the temperature setting +70 °C. Maximum heating flow of the switch is 0.4 A / 230 V.
The present temperature range limit values for the use of the actuators (-40 ° C and +70 ° C), which can be changed
according to customer needs. Exceeding these limits close the fault contact READY and an error signal occurs.
Note: Sheltered areas are considered those where the fall of atmospheric precipitations under an angle up to 60°
is prevented.
Operating position
The actuators MODACT MOKPED Ex can operate in any operating position.
3. OPERATION MODE, SERVICE LIFE OF ACTUATORS
Operation mode
The actuators can operate at rated load torque, which is 50% of the maximum tripping torque, with S2 type load.
The operation time is in this kind of load is 10 minutes at ambient environment temperature up to +55 ° C. The actuators
can operate at rated load torque and intermittent operation with start-up with the S4 type of load according to ČSN EN
60034-1 (35 0000). The load factor is 25%, and switching frequency up to 1200 times per hour. The maximum duty
cycle is determined by the run time at a full stroke of the actuator. Maximum medium level of load torque equals to
rated torque of actuator. The highest mean value of loading torque is equal to rated torque of the actuator.
Service life of actuators
The actuator intended for shut-off valves must be able to perform at least 10,000 operating cycles (C - O - C).
The actuator intended for regulating purposes must be able to perform at least 1 million cycles with operation time (during
which the output shaft is moving) at least 250 hours. Service life in operating hours (h) depends on load and number of switching.
Not always, high frequency of switching influences positively accuracy of regulation. For attaining the longest possible faultless
period and service life, frequency of switching is recommended to be set to the lowest number of switching necessary for the
given process. Orientation data of service life derived from the set regulation parameters are shown in the following table.
Service life of actuators for 1 million starts
Service life [h] 830 1000 2000 4000
Number of starts [1/h] Max. number of starts 1200 1000 500 250
Run time N Idle time R
Cycle time
Course of working cycle
Mz starting torque ≥ 1,3 . Mv
Mstř mean value of loading torque
Mv maximum value of tripping torque

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4. TECHNICAL DATA
Basic technical parameters are given in Table 1.
Power supply
– nominal value of the AC voltage is 1 x 230 V or 3 x 400 V (according to version)
– permitted power supply voltage tolerance is -10 % to +6 % of the nominal value
– rated frequency of supply voltage is 50 Hz
– permitted power supply voltage frequency tolerance is 2% of the nominal value
Within this supply voltage range, all parameters are kept up except the starting torque which varies with the square
of the supply voltage deviation from the rated value. This dependence is directly proportional to the supply voltage
variation; no larger supply voltage and frequency fluctuations are permitted.
Protective enclosure
Protective enclosure of the MODACT MOKPED Ex actuators is IP 67 according to ČSN EN 60529 (33 0330).
Noise
Level of acoustic pressure A max. 85 dB (A)
Level of acoustic output A max. 95 dB (A)
Tripping torque
At the factory, the tripping torque has been adjusted as shown in Table 1, according to the customer’s
requirements. If no tripping torque adjustment has been specified by the customer the maximum tripping torque is
adjusted.
Self-locking
Actuator self-locking capacity is provided by mechanical electric motor brake, at actuator type no. 52 320 by
mechanic gearbox brake.
Sense of rotation
When looking at the output shaft in the direction towards the control box, the CLOSE direction of rotation is identical
with the clockwise sense.
Working stroke
The working stroke of MODACT MOKPED Ex actuator is 90° (after agreement with the manufacturer actuators can
be supplied with working stroke 60 °, 120 ° or 160 °).
Manual control
The actuators are controlled by a hand wheel directly (without a clutch) and control is possible even during
operation of the electric motor. When rotating the hand wheel in clockwise direction, the actuator’s output shaft also
rotates in clockwise direction (looking at the local position indicator). Handwheel direction of rotation is also indicated
on the label of the handwheel.
Torque-limit switches in the actuator are set and work when the actuator is under voltage.
When using the manual control, ie. actuator is controlled mechanically, the torque-limit switches doesn´t
work and the valve can be damaged.
5. ACTUATOR OUTFIT
Position indicator
The actuator can be fitted with a display as an option for DMS2 ED electronic system. Actuator with DMS2 electronic
system is equipped with two-line display.
Heating element
Actuators are equipped with a heating element to prevent water vapour condensation. As a heating element they
apply resistors TRA 25 10 K/J with an output of 25 W and resistance of 10 kΩ. They are switched by a switch for the
heating resistor located on the source circuit board. It is possible to use a computer to set the switching temperature
in the range of -40 to +70 °C. Permanent heating can reliably be ensured by the temperature setting +70 °C. Maximum
heating current of the switch is 0.4 A/230 V.

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The preset temperature range limit values of the actuators (-40 °C and +70 °C) can be changed according to
customer needs. Exceeding these limits close the fault contact READY and an error signal occurs.
Local control
Local control serves for controlling the actuator from the site of its installation. For DMS2 ED electronic system includes
two change-over switches: one with positions “Remote control – Off - Local control“, the other “Open – Stop – Close“.
The first change-over switch can be built-in as two-pole or four-pole. The change-over switches are installed in
a terminal-board box and the control elements on the lid of this terminal-board box.
If the actuator is equipped with DMS electronic system local control consists of 3 buttons – “Open“, “Stop“, “Close“
and rotary switch “Local, Remote, Off“.
6. ELECTRIC PARAMETERS
Terminal board of the actuator
Electrical equipment consists of electronics power supply circuit and motor control circuit. Connection of the dis-
tribution network is performed by means of the terminal board located on the control module. The terminal block is
designed that the total connection does not need any other terminals.
This terminal board uses screw terminals allowing to connect conductors with a maximum cross-section of
2,5 mm2.
Actuator internal wiring
The internal wiring diagrams of the MODACT MOKPED Ex actuators with terminal designation are shown in this
Mounting and operating instructions.
Each actuator is provided with its internal wiring diagram on the inner side of the actuator. The terminals are
marked on a self-adhesive label attached to a carrying strip under the terminal block.
Isolation resistance
Isolation resistance of electric control circuits against the frame and against each other is min. 20 MΩ.
Isolation resistance of the electric motor is min. 1,9 MΩ. After a dump test, isolation resistance of control circuits
is min. 2 MΩ.
Electric strength of electric circuits isolation
MOKPED Ex actuator with electronic system are tested:
circuits of anti-condensation heater 1500 V 50 Hz
circuits of electric motor 1000 V +2.Ujm 50 Hz, at least 1500 V
circuits of outgoing and control signal circuits 50 V DC
Deviations of basic parameters
Tripping torque ±15 % of max. value of range
Adjusting time +10 % till -15 % of rated value (idle run)
Protection
The actuators are fitted with one internal and one external protective terminals ensuring protection against electric
shock according to ČSN 33 2000-4-41. One protective terminal is also fitted to the electric motor. The protective terminals
are labelled with a mark according to ČSN EN 60417-1a2 (013760).
7. DESCRIPTION
The entire actuator is designed as explosion-proof closure “d“ marked Ex d IICT6 Gb or Ex d IIB T6 Gb for
explosive gaseous atmosphere and Ex tb IIIC T80°C Db IP67 for areas with flammable dust.
If the actuator is equipped with local control unit, the local control unit makes another explosion-proof closure “d“.
Both explosion-proof closures are in such case separated by a bushing.

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The motors consist of two parts:
a) Power part – is used to draw the necessary torque to the valve and is composed of a single- or three-phase
asynchronous electric motor, countershaft gear box, planet gear box with output shaft, device for manual control
with a hand wheel and floating screw.
b) Control (electronic) part onsisting of DMS2 or DMS2 ED electronic system is used to control the actuator. The individual
modules of both electronic systems and their functions are described in Chapter ELECTRONIC OUTFIT.
Operation of the position-limit is derived from rotation of the output shaft via special mechanisms. Operation of the
torque-limit switches is derived from axial displacement of the “floating worm” of the manual control unit which is scanned
and transferred to the control box.
The tripping torque can be adjusted within the range specified in the table 1. Torque switches may be blocked when
actuator needs to produce a starting torque.
Showing position of the output shaft of the actuator can be either on site using mechanical indicators or display that
can be installed in the actuator or remotely via an analog output signal and the corresponding indicator. Indicator is not
included in the delivery.
8. ADJUSTMENT OF ELECTRIC ACTUATOR
Stop screws
The stop screws are used to limit the working stroke of the electric actuator to a required value in compliance
with and positions “Closed“ or “Opened“ of the piping fittings which do not have their own stops. The stop screws are
located on the external side of the electric motor where the external protective terminal is also fitted. When viewing
the stop screws, the right stop screw is intended for the position “Closed“ and the left one for the position “Opened“.
Herewith, it is assumed that, when viewed in the direction to the local position indicator, the output shaft moves in the
clockwise sense if it rotates in the direction to “Closed“. Adjustment of the stop screws is carried out in such a way
that the stop screws are first released, the electric actuator with the piping fitting is moved to the position “Closed“ and
the particular stop screw is rotated until there is a perceptible increased resistance as the screw strikes against the
contact plate of the output shaft of the electric actuator. The stop screw is secured by proper tightening of its safety nut.
Then, the output shaft of the electric actuator is turned to the position “Opened“ and the stop screw is adjusted for the
position “Opened“ in a similar way.
If a tight closure is required in the end position of the piping fitting and, hence, cutting-out of the electric actuator
by means of the moment switches the cutting-out moment should be transferred to the piping fitting. In such case the
particular stop screw is set so that the piping fitting is properly tight when the trips of the output shaft strike against the
stop screw with cutting-out of the moment switch. Herein, the position and moment switches are connected in series.
This can only be realized in the case when a tightly closed piping fitting is not required.
Clamp rings according to DIN 6799 are use to avoid removing of stop screws. These rings are removable only from
the inside of explosion-proof closure and may in no case be removed.
ELECTRONIC OUTFIT
The actuator is controlled with the electronic system DMS2 or DMS2 ED. Both systems scan position of the output
shaft and torque of the electric actuator by contact-free magnetic sensors. Long service life is guaranteed for the
contact-free sensors that do not get mechanically worn.
The sensor of the output shaft position is absolute and does not require any backup power supply in case supply
voltage is disconnected during operation of the electric actuator. Both systems can be set and monitored by a computer
with controlling program (set parameter can be backed up on a computer) or manually without a computer (for the
electronics DMS2, parameters can be manually set and it can be checked without computer only if the system is
equipped with a display and local control). They contain diagnostic functions – error messages on the display, memory
of recent failures and number of occurrences of respective failures.
The more simple system DMS2 ED substitutes the electro-mechanical board and/or provides for controlling
the electric actuator by input analog signal as in the version Control.
The system DMS2 enables the electric actuator to be used for two-position and three-position regulation or to be
connected to the industrial bus bar Profibus.

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DMS2 ED SYSTEM
Basic outfit of the DMS2 ED electronics:
Position control unit – main part of the system DMS2 ED – includes microcomputer, position
sensor, 3 signal lamps LED, 4 push-buttons for simple setting and checking
the actuator, connectors for connecting the torque sensor, source board,
and interface RS 232 (connection of computer for setting and diagnostics).
Source unit – electronic power supply, user's terminal board (connection of power
supply and control signals), 2 torque relays, 2 position relays, 2 signal-
ling relays, 1 relay for signalling errors (READY), switch of resistance
anti- condensation heater and its thermostatic control, connectors for
connecting the control unit and analog CPT module.
Torque sensor – provides contactless torque sensing
Optional outfit of the DMS2 ED electronics:
Analog module – output of feed-back signal 4 – 20 mA, in version CONTROL input of
control signal 0/4 – 20 mA
LCD display – communication, position indicator
Local control
Reversing relays – for three-phase motors
Technical parameters of the DMS2 ED electronics:
Scanning of position contact-less, magnetic
Scanning of torque contact-less, magnetic
Working stroke see 90°
Torque blocking 0 – 20 s at reversing in limit positions
Input signal 0(4) – 20 mA, 20 – 0(4) mA with switched on regulator function
Local/Remote control, Local open/close
Output signal 7 x relay 250 V AC, 3 A (MO, MZ, PO, PZ, SO, SZ, READY)
Position signal 4 – 20 mA, max. 500 Ω, active/passive, galvanic-isolated,
2x12 character LED display
Power supply of electronic 230 V AC, 50 Hz, 4 W, over-voltage category II
Design of DMS2 ED electronics:
Replacement of electromechanical board – the provided relay contacts substitute position, torque and signalling micro-
switches; current feed-back signal 4 – 20 mA can also be brought out; the
actuator is controlled by the superior control system with signals “open“ and
“close“.
CONTROL – the electronics covers also function of the regulator; the output shaft
position is controlled by analog input signal.
Function and setting of output relays
The output relays replace end-limit micro-switches; to some extent, function of the output relays differs according to
chosen mode of electronics or it can be selected, preferably by the setting program.
Setting program – allows to select multiple authorization levels (user, service, manufacturing) and thereby change
various parameters of the electronic equipment.
Setting program – is same for communication with the electronics DMS2ED and DMS2. The users' version can
be freely downloaded. The next level of approval is given by the HW key, which must be connected to the computer.
Program is modified to leading the user by excluding the impossible variants.

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Note: In the window “Parameters” of the setting program, column “Access”, the word “NO” designates
parameters that cannot be changed by the user (change of these parameters is blocked).
For actuator with DMS2 ED electronic system in “Replacement of electro-mechanical board“ design
have two contacts function of torque switches, two contacts function of position switches and two contacts can
be used according to the customer requirements according to the list below (typically a function of signalling
switches).
In version CONTROL have two contacts function of motor relay (they control the actuator in “open“ and
“close“ position by comparison result of the output shaft of the actuator and input signal), two contacts have
function of torque switches or torque + position switches according to setting, two contacts are available to
the customer.
Relay MO, MZ, SO, SZ
In the version Control, the function of relay MO/MZ is same as that of motor relays.
Their operation is controlled by: – regulation loop (deviation of required and actual position)
– active errors
Any induced active error will change over both relays to a standstill position (coils not energized). In case of
errors, the relays with a function of torque relays (in both versions DMS2 ED and DMS2 ED Control) are also
controlled.
List of functions that can be selected for signalling contacts SO, SZ:
off torque and position O position torque O or Z
position O torque and position Z position negated
position Z opening control – local
torque O closing control – remote
torque Z movement control – off
Ready contact relays for errors signalling and non-standard states according to the following list:
off warnings + errors torque O or Z
warning errors + not remote
errors errors + warnings + not remote
MO torque open
(also changes-over to errors) motor open
MZ torque closed
(also changes-over to errors) motor closed
PO position open torque open (also changes-over to errors )
+ optional tripping in position open (parameter Tripping)
PZ position closed torque closed (also changes-over to errors )
+ optional tripping in position closed (parameter Tripping)
Relay DMS2 ED DMS2 ED Control
Parametr – Parameter
Změna – Change
Chyba – Error
Přístup – Access
Setrvačnost (0,1 %) – Inertia [0.1 %]
Setr. Doběh (0,1 s) – Inertial run-out [0.1 s]
Necitlivost (%) – Insensitivity [%]
NE – NO

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Note:
Error – a condition that affects the electronics, actuator reacts according to “Response to failure and SAFE
signal“ (SAFE – external signal, which can impose error condition to the actuator. May use, for instance, when
the actuator must be set as an error because the error occurred in another device).
Warning – condition, which is only indicated, will not affect the electronics.
Can be set what condition will be evaluated as a Warning and what as an Error.
Procedure of setting parameters by means of push-buttons
For simple programming of required operating parameters, the control unit is fitted with four push-buttons:
MENU, P, O, C and three signal lamps.
- - - System without feeding
- - lit on Everything OK – working regime (remote, local or switched off control)
- blinking lit on Error or warning – working regime (remote, local or switched off control)
lit on - lit on Enter or exit of Setting of parameters by means of push-buttons
or Setting of parameters by means of PC
blinking - lit on
blinking blinking lit on Setting of parameters by means of push-buttons
blinking lit on lit on
Zápis poloha zavřeno, otevřeno a autokalibrace
– The actuator is set to position Closed and position Closed is stored by long pressing of push-button C – until the
LED1 turns on (without entering the Menu).
– The actuator is set to position Open and position Open is stored by long pressing of push-button O – until the LED1
turns on.
– The calibration routine is started by means of push-button P (in remote control) that, in the three-position regulation,
will measure actual inertial masses of the system and store them into the memory of the control unit.
This function is designed for 3P regulation only and serves to measure the inertial mass.
– In case the actuator stroke is to be increased and the switching off is set to “from position“, the actuator will
switch off during shifting in position 0 or 100 %. To further change the position, press C or O, and, while keeping it
depressed, the actuator can be further shifted.
Overview of MENU
BROWSING THROUGH MENU
– The setting mode is entered by pressing and keeping depressed push-button MENU for at least 2 s; LED1 is then lit on.
– Shortly press MENU to select the basic MENU – menu M1 to M8 (LED1 signalizes the menu number); by short pressing
of P, O, C they are entered (LED2 signalizes particular parameter).
– Shortly press P to select required value of the parameter. In case the parameter can be set to several values, they are
changed by short pressing of P (number of blinking of LED2 indicates its value). Keep pressing of P to record the
chosen parameter; the record is confirmed by lighting on of LED2.
– Shortly press MENU to gradually set the required menu and parameters.
– After setting all required parameters, exit the setting menu by pressing and keeping depressed push-button MENU for at
least 2 s. The setting menu will also be left in case that no push-button is pressed within 1 minute.
COM POWER TORK
AIN
LED1 LED2 LED3
MENU POC
Push-buttons and signal lamps LED on control unit DMS2.ED.S and DMS2.ED.S90
Colours of diodes:
LED1 – yellow (menu number)
LED2 – red (parameter value)
LED3 – green
Yellow Red Green State

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MENU 1 – Setting of tripping torques
– After entering the menu by means of push-button C or O, select required torque.
– Shortly press P to select the set value of the parameter 50 – 100 % (5 – 10 blinking of LED2) and keep pressing
push-button P to store the parameter to memory.
MENU 2 – Setting function of signalling relays
– Basic setting of the signalling relays is SZ 1 % and SO 99 % of stroke.
– In case different setting is required, it can be changed after shifting the actuator to required position by means of
push-button C or O.
– Using push-button P, perform basic setting SZ 1 % and SO 99 % of stroke.
MENU 3 – Setting of blocking of torque in end-limit positions
– Shortly press P to select the set value of blocking time 0 – 20 s (0 – 20 blinking of LED2) and keep pressing push-
-button P to store the parameter to memory.
– Keep pressing push-button C to store actual position for blocking torque on the side Closed to memory.
– Keep pressing push-button O to store actual position for blocking torque on the side Open to memory.
MENU 4 – Setting transducer characteristics
– Shortly press P to select the value 4 – 20 mA – 1x blinking of LED2 or 20 – 4 mA – 2x blinking of LED2, and keep
pressing push-button P to store the parameter to memory.
Other menus only serve for board setting in version Control
MENU 5 – Setting control signal in 3P regulation
– Shortly press P to select value 4 – 20 mA - 1x blinking of LED2,
or 20 – 4 mA - 2x blinking of LED2,
or 0 – 20 mA - 3x blinking of LED2,
or 20 – 0 mA - 4x blinking of LED2
and keep pressing push-button P to store the parameter to memory.
MENU 6 – Setting insensitivity in three-position regulation
– Shortly press P to select value 1 – 10 % (1 – 10x blinking of LED2) and keep pressing push-button P to store
the parameter to memory.
MENU 7 – Response in case of losing control signal in three-position regulation
– Shortly press P to select value OPEN - 1x blinking of LED2,
or CLOSSE - 2x blinking of LED2,
or STOP - 3x blinking of LED2
and keep pressing push-button P to store the parameter to memory.
Main window of setting program Selection of electronics

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MENU 8 – Way of switching off in end-limit positions in 3P regulation
– Shortly press P to select value TORQUE - 1x blinking of LED2,
or TORQUE+PO - 2x blinking of LED2,
or TORQUE+PZ - 3x blinking of LED2,
or TORQUE+PO+PZ - 4x blinking of LED2
and keep pressing push-button P to store the parameter to memory.
PROCEDURE OF SETTING PARAMETERS BY PROGRAM DMS2
– Before starting the actuator, it is necessary to set some parameters of the system by means of program DMS2 on PC.
– For safety reasons, the system is delivered in the state of induced error of Calibration when the functions are limited in
order to reduce the risk of damaging the actuator by wrong wiring. In controlling the actuator from program DMS2, its run is
stopped when any torque is induced.
Working torque
– Check and, if necessary, set the value of working torque 50 – 100 % in program DMS2.
End-limit positions – working stroke
Position Z
– Shift to position Closed either manually or by means of menu Motor in program DMS2.
– The actuator can only be controlled by means of the program if no torque is induced. The torque should be left manually.
– Press push-button Z to confirm consent with the record.
Position O
– Shift to position Open either manually or by means of menu Motor in program DMS2.
– The actuator can only be controlled by means of the program if no torque is induced. The torque should be left manually.
– Press push-button O to confirm consent with the record.
Autocalibration (CONTROL only)
– The autocalibration can only be started by means of the program if no torque is induced. The torque should be left
manually.
– The autocalibration is started by push-button Start in program DMS2.
– Wait until the autocalibration is completed; information on its course is signalized next to push-button Start.
Other parameters
Check and, if necessary, change other parameters:
Control signal 4 – 20 mA, 20 – 4 mA, 0 – 20 mA, 20 – 0 mA
Insensitivity 1 – 10 %
Function in case of error open, close, stop, to position
Time of torque blocking in end-limit positions 0 – 20 s (default 5s from producer)
Position of torque blocking in end-limit positions 1 – 10 %
Output of position signal 4 – 20 mA, 20 – 4 mA
Function READY combined error
Note: Signal READY is brought out as contact of the relay on the terminal board. If the state ERROR or WARNING is
not detected (setting can be made of what is to be evaluated as error or warning), the contact is closed; in case of error,
warning, or if feeding of electronics is interrupted, the contact is opened. The state of the relay READY is indicated by the
LED diode on the source board.
AUTODIAGNOSTICS
DMS2 ED performs continuously its diagnostics and, if a problem is detected, it reports warning or error. The
warning or error is signalized by LED of the display and, possibly, by relay Ready. The warning has no effect on
operation of the system, the error stops the actuator.
Assigning or switching off of warnings and errors is set in window “Warning and error” of the setting program
(it is opened by clicking one of parameters Warning 1 – 4 or Error 1 – 4 in window “Parameters”).

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List of warnings and errors
No. Name Warning1 Error1 Description
1 SAFE * X Input SAFE activated (external error, irrelevant in DMS2 ED)
2 Control signal X Value of control signal ≤ 3 mA (it applies to ranges 4 – 20 / 20 – 4 mA)
4 Torque X Induced torque beyond end-limit positions or disconnected torque sensor
6 Heat protection X Input heat protection activated
7 Sense of rotation X Reverse sense of rotation (for CONTROL only)
8 EEPROM X Wrong control sum of parameters in EEPROM
9 RAM X Wrong control sum of parameters in RAM
10 Parameters X Wrong parameters in EEPROM
11 Setting modes X Setting mode from push-buttons or PC
12 Torque sensor X Disconnected or defective torque sensor
13 Sensor 1 X Error of sensor of position 1 (lowest stage)
14 Sensor 2 X Error of sensor of position 2
15 Sensor 3 X Error of sensor of position 3
16 Sensor 4 X Error of sensor of position 4 (highest stage)
17 Calibration X Autocalibration not carried out
18 Torque setting X Wrong setting of torques (parameters Torque O/Z/50/100%)
19 Stroke X Wrong setting of stroke (parameters Position O/Z)
20 Rotation error X The actuator does not rotate
21 High temperature X Permitted max. temperature exceeded (parameter Temperature max.)
22 Low temperature X Permitted max. temperature exceeded (parameter Temperature min.)
23 LCD internal * X Display of LCD internal does not communicate or not added
in parameter CAN of configuration
24 LCD external * X Display of LCD external does not communicate or not added
in parameter CAN of configuration
25 Fieldbus * X Module of industrial bus does not communicate or not added in
parameter CAN of configuration
26 CAN * X Error of bus CAN (short circuit, interruption, only sensor communicates)
27 Fieldbus activity* X Connection to industrial bus not active
28 Phase * X Inverse order of phases or some phase missing
29 Relay of service X Service life of relay MO/MZ at CONTROL exceeded
life (parameter Relay of service life)
30 Reset X Non-standard Reset of unit induced (watchdog etc.)
31 ROM X Wrong control sum of program in ROM
32 CAN version * X Sensor, LCD display or module Fieldbus have incompatible versions
of firmware
33 Wrong command * X Commands Open and Close entered at the same time
34 Wrong inertia – – Wrong inertia measured by autocalibration (for autocalibration only)
35 Wrong run-down – – Wrong run-down measured by autocalibration (for autocalibration only)
41 Wrong position X Servo-drive is in position 25 % behind working stroke
1) Assignment can vary depending on the version of firmware of the sensor control unit.
* Applies to DMS2 only.
Memory of number of induced errors
– For all ascertained warnings and errors, DMS2 uses counters of occurrence of these warnings and errors during
operation of the system.
– Values of the counters are stored to the EEPROM memory and are preserved even in case of the power supply fall-out.
– Reading of the counters is possible by means of the program for PC
– Clearing of the counters is possible by means of the program for PC with the level of authorization “SERVICE”.

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– In version DMS2ED with display is shown number of the current error in the display.
– Errors / warnings EEPROM, RAM, ROM, Reset are internal electronics errors
– for EEPROM warning restore parameters from a backup, unless you have not saved the last state as a backup, if so
check and reset of some parameters is necessary.
Restoring parameters from backup – can be done from PC or by using buttons on the sensor:
– turn off power of electronics
– press and hold O + C buttons
– turn the power on (all LED lit)
– wait for blink of yellow and red LED, by this writing of back up parameters is signalled
– RAM error is in operation corrected automatically by reloading parameters from EEPROM to RAM
– ROM error signals overwrite of program memory, this sensor must be replaced
Terminal board of the actuator with DMS2 ED electronics
If the actuator is of the single-phase version the power supply is connected only to terminals PE, N, U. The
terminals V, W remain non-connected. If the actuator is of the version “Replacement of electric-mechanical board”
with three-phase electric motor without power relays, the electric motor is connected to a separate terminal board
(not shown here).

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Example of wiring diagram of electronics DMS2 ED in version Substitution of electro-mechanical board
with single-phase electric motor
Torque
sensor
Position
sensor
Local control
Source board
Remote allowed
In version without local control, the jumper from terminal U is connected to terminal 2
Supply mains
Analog
module
Active output
Passive output
Remote
“Open”
Remote
“Close”
Note: Here, contacts of relay MO, MZ, SO, SZ are shown with power supply switched off; with power supply switched off contacts PO, PZ are shifted to the position drawn in dashed line.
E0010
“R” “ L” “O” “C”

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Example of wiring diagram of electronics DMS2 ED in version Substitution of electro-mechanical board
with three-phase electric motor
Note: For three-phase actuator,
the version. “Substitution of electro-mechanical board without block of power relays” is also available; electric motor is connected to separate terminal board.
Torque
sensor
Position
sensor
Local control
Source board
Remote allowed
In version without local control the jumper from terminal U is connected to terminal 2
Power relays board
Analog
module
Active output
Passive output
Remote
“Open”
Remote
“Close”
3x400 V
Note: Here, contacts of relay MO, MZ, SO, SZ are shown with power supply switched off; with power supply switched off contacts PO, PZ are shifted to the position drawn in dashed line.
E0011
“R” “ L” “O” “C”

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Example of connection of DMS2ED electronics with phase tripping monitoring module dual local control switch
Local control
E0102
“R” “ L” “O“ „C“ “R“ “L“
Analog
module
Source board
Phase
monitoring
board
Snímač polohy
Torque
sensor
In the version without local control the jumper from terminal U is connected to terminal 2
Remotely permitted
Remote
„Open“
Remote
„Close“
Power relay board