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ZPA Pecky, a.s. MODACT MO EE Series Mounting And Operating Instructions

Electric rotary multi-turn actuators, explosion-proof design
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Electric rotary multi-tur n actuators
Explosion-proof design
Type numb er s 52 120 - 5 1 12 5
10/18

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Summary of Contents for ZPA Pecky, a.s. MODACT MO EE Series

  • Page 1 Electric rotary multi-tur n actuators Explosion-proof design Type numb er s 52 120 - 5 1 12 5 10/18...
  • Page 2 ZPA Pečky, a.s. is certified company in accordance with ISO 90001 as amended.

  • Page 3: Table Of Contents

    CONTENS 1. Application ........................2.
  • Page 4 – as modification for use in mines in group I, category M2 with marking Ex db eb I Mb – as modification for use in spark-safe control circuits in mines group I, category M2 with marking Ex db ib I Mb Designation of explosion-proof properties It consists of the following symbols: Electric device complies with the standard ČSN EN 60 079-0 and related standards for various types of protection...
  • Page 5 ČSN EN 60079-14 Regulations for electrical devices in areas with a danger of explosion of flammable gases and vapours. ČSN IEC 60721 Types of environment for electrical devices. ČSN 33 0371 Non-explosive mixtures. Classification and testing methods. ČSN 34 3205 Operation of electric rotating machines and work with them.

  • Page 6: Operating Conditions; Operating Position

    Electric actuators MODACT MO EEx of mining version marked I M2 Elektrické servomotory MODACT MO EEx v důlním provedení s označením I M2 In an order, the customer shall state that the actuator is intended for using in spark-safe control circuits and, if possible, Zákazník musí...

  • Page 7: Operation Mode; Service Life Of Actuators

    13) AP3 – medium seismic effects. Acceleration from 300 to 600 Gal 14) BA4 – staff capability. Instructed persons. 15) BC3 – frequent contact of persons with earth potential. Persons often touch foreign conductive parts or stand on conductive base. 16) BE3N2 –...

  • Page 8: Technical Data

    Starting torque ≥ 1.3 x M v M stř Average load torque Maximum tripping torque Idling time R Operating time N Cycle period Course of operating cycle Service life 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.

  • Page 9: Actuator Outfit

    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 ranges of working stroke are given in Table No. 1 or No. 2. Rising spindle In the design variants with connecting dimensions, Shapes A and C, the actuators can be adapted for mounting to the valve with a rising spindle that projects over the upper end of the actuator output shaft in the end position...

  • Page 10: Elektrical Parameters

    Technical parameters of CPT 1Az: Scanning of position capacity Working stroke adjustable 0° – 40° to 0° – 120° Non-linearity ≤ 1 % Non-linearity, including gears ≤ 2.5 % (for a maximum stroke of 120°) Hysteresis, including gears ≤ 5 % (for a maximum stroke of 120°) (The non-linearity and hysteresis are related to a signal value of 20 mA).
  • Page 11 Electric strength of electric circuits isolation Circuit of resistance transmitter 500 V, 50 Hz Circuit of current transmitter 50 V DC Circuits of microswitches and anti-condensation heater 1 500 V, 50 Hz Electric motor Un = 3 x 230/400 V 1 800 V, 50 Hz Deviations of basic parameters Tripping torque...

  • Page 12: Description

    Location of components The switchboard is installed in the switchboard box with protective enclosure IP 67. Other components are installed in the control box of the actuator in the version of firm closure “d”. The boxes are separated by certified bushing D41V21 x 0.75 (thickness of insulation of bushing conductors is 0.5 –...
  • Page 13 designation Ex db IIC T4 Gb. The terminal box in the secured design “e” has designation Ex eb II T4 Gb. The control elements are accessible after removing the cover 6 of this box. Access to the terminal box is possible after removing the cover 8. The cable inlets are protected by certified cable bushings.
  • Page 14 The torque control shaft transmits motion of the floating worm from the power gearing to CLOSE (MZ) or OPEN (MO) micro-switches by means of segments 28 or 29 and levers 36 or 37. The tripping torque can be set by moving round the segments with respect to the tripping levers.
  • Page 15 Diagram of micro-switches Legend: 38 – CLOSE direction cams 39 – OPEN direction cams 40 – Screws for CLOSE direction cams 41 – Screws for OPEN direction cams 42 – OPEN direction lever 43 – CLOSE direction lever 44 – Micro-switch (lower) for direction OPEN 45 –...
  • Page 16 Diagram of micro-switches Legend: 48 – Decadic transmission gearing 49 – CLOSE regulating screw 50 – CLOSE tripping cam 51 – Tripping rod 52 – OPEN regulating screw 53 – OPEN tripping cam 54 – OPEN position-limit micro-switch 55 – Driving gear 56 –...
  • Page 17 Adjustment of working stroke of the signaling unit Output Gearbox Cams Legend: shaft K1 – Gear K2 – Driving gear K3 – Sliding gear 57 – Lock screw of sliding gear 58 – Cam shaft 59 – Pinion with friction clutch Fig.
  • Page 18 Operating diagram of position-limit and signalling switches Open Closed Numbers of terminals on terminal board 15-16 14-15 18-19 17-18 Open Closed 21-22 20-21 24-25 23-24 Contact closed Contact open Fig. 8 – Operating diagram of position-limit and signalling switches In this position, check the wheel and, if necessary, adjust the height of the double wheel with the washers on the transmitter shaft wheel drive.
  • Page 19 A milli-ammeter, preferentially a digital one with accuracy at least 0.5 %, is temporarily connected in series with the transmitter. The output shaft is moved to the position CLOSE. The signal value should decrease. If this is not the case, the output shaft should be rotated in the CLOSE direction until the signal starts decreasing and the output shaft reaches the CLOSE position.

  • Page 20: Packing And Storing

    The adjustment is made by means of the adjusting wheel K3 in the signaling unit gearbox according to the previous point b). It is also necessary to insert the required wheel, which is attached to the transmitter shaft. Wheel with smaller diameter is marked A, the larger wheel is marked B.

  • Page 21: Adjustment Of Electric Actuator With Valve

    Insulation resistance Before putting into operation or starting an actuator that has not been used for a longer period of time, it is necessary to check whether insulation conditions have not been deteriorated and whether this cannot cause any risk of damaging to the winding or an electric shock.

  • Page 22: Operation And Maintenance

    5) Move the output shaft round by a required number of turn and adjust the OPEN position-limit switch PO according to Point 7c and the potentiometer according to Point 7e. Adjustment of the position-limit and signalling switches, and the position transmitter should be checked repeatedly. 6) Bring the output shaft into the position where the signalling switch SO should change over.

  • Page 23: Failures And Their Removal

    Actuators with oil charge Check the level of oil at least yearly and refill, if required. Oil change should be made after 500 operating hours of the actuator, but not later than after 2 years of operation. The level of oil should be as high as the filling hole. For the actuator, Grade PP 80 motor-car gearbox oil or an equivalent oil with the same properties (viscosity class 80 W, according to SAE/J306a) should be used.

  • Page 24: Tables

    Table 1 – MODACT MO EEx – supply voltage 3 x 400 / 230 V, 50 Hz – basic technical parameters and designs (electric actuators with AVM motors) Basic outfit: 1 electric motor type AVM 2 torque-limit switches (OPEN and CLOSE) 1 anti-condensation heater 2 position-limit switches (OPEN and CLOSE) Working...

  • Page 25: Tables

    Table 3 – Specification of type number Place in the type number Type number 6 th place of type number Connecting dimensions Shape A Shape B Connecting dimensions according ISO and DIN Shape C Shape D Shape E Connection M Connection A Connecting dimensions according OST (Russia) Connection Б...
  • Page 27 Dimensional sketch of MODACT MO EEx electric actuator Dimensions of cable entries 1 pc. M25 x 1,5; ø 10 – 16 mm of electric motors are shown 1 pc. M25 x 1,5; ø 14 – 18 mm in Table 1 pc. M20 x 1,5; ø 7 – 12 mm Cable entries of electric motors used in multi-revolution actuators MODACT MO EEx Type of electric motor Axial height of motor...
  • Page 28 Holes for additional attachment of MODACT MO EEx electric actuator Type number Dimension 52 120 52 121, 2 52 123, 4 52 125 M 10 M 12 M 16 M 20 Note: The holes intended for additional attachment of MODACT electric actuators only serve for supporting the actuator weight and may not be subjected to load with any additional force.
  • Page 29 Adapters to MODACT MO EEx electric actuators Shape A Shape B1 according to ČSN EN ISO 5210 (13 3090) according to ČSN EN ISO 5210 (13 3090) ø d5 ø d6 ø d2 ø d3 ø d5 ø d2 ø d1 ø...
  • Page 30 Technical parameters of explosion-proof MODACT MO EEx actuators in connection with linear thrust device MO EEx actuators MO EEx actuators + linear thrust device Type number Použitý elektromotor Moment (Nm) Thrust (kN) Linear Working justing Speed thrust stroke Comple- Power Iz/I Tripping speed...
  • Page 31 Specific embodiments of the linear thrust device is a combination of letters and numbers in the following order: Device height Order of Dimension of Code of device connection dimension Dimension Note designation Endpoint 1 Endpoint 2 parameter designation code Spacing of 160 mm columns 150 mm...

  • Page 32: Diagram Of Electric Wiring

    Internal wiring diagrams of MODACT MO EEx electric actuators Legend: – Position transmitter - resistance 1x100 Ω BQ1 (V1) SQ5 (PZ) – CLOSE position-limit switch CPT 1Az – Current position transmitter SQ4 (SO) – OPEN signalling switch SQ1 (MO) – OPEN torque-limit switch SQ6 (SZ) –...
  • Page 33 Internal wiring diagrams of MODACT MO EEx electric actuators version without signaling change-over switches with two doubled position change-over switches. The doubled position change-over switches (PO1, PO2, and PZ1, PZ2) always switch at the same time – Design with resistance position transmitter MEGATRON 1 x 100 Ω or without transmitter Electric motor Control box External protective terminal...
  • Page 34 Internal wiring diagram of MODACT MO EEx electric actuators of mining version I M2 Electric outfit and wiring according to wiring diagram P-0767 is certified for using actuators in spar-safe control circuits. The signalling switches, anti-condensation heater, and resistance transmitter are optional accessories. Control box Bushing Switchboard box...

  • Page 39: List Of Spare Parts

    LIST OF SPARE PARTS (for five year operation) Type Name Drawing or Application standard no. 52 120 Sealing ring 125x3 PN 029281.2 Packing between power gear 2327311049 box and flange with gears Sealing ring 170x3 PN 029281.2 Packing of terminal box cover 2327311054 Sealing ring 130x3 PN 029281.2...
  • Page 40 Packing 224642240 Packing between electric motor and flange with gears Micro-switch D 433-B8LD available Open and Close position-limit switches 2337441098 from ZPA Pečky a.s. Open and Close signalling switches Sealing ring 160x3 PN 029281.2 Packing between power gear box 2327311048 and flange with gears Sealing ring 170x3 2327311054...
  • Page 41 Micro-switch D 433-B8LD available Open and Close position-limit switches 2337441098 from ZPA Pečky a.s. Open and Close signalling switches Packing 224591530 Packing between electric motor and flange with gears Sealing ring 200x3 PN 029281.2 Packing between power gear box 2327311044 and control box Sealing ring 170x3 PN 029281.2...
  • Page 42 NOTES...
  • Page 43 Development, production and services of electric actuators and switchboards. Top-quality sheet-metal processing (TRUMPF equipment), powder paint shop. SURVEY OF PRODUCED ACTUATORS KP MINI, KP MIDI Electric rotary (90°) actuators (up to 30 Nm) MODACT MOK, MOKED, MOKP Ex, MOKPED Ex Electric rotary (90°) actuators for ball valves and flaps MODACT MOKA Electric rotary (90°) actuators for nuclear power stations...
  • Page 44 ZPA Pečky, a.s. tel.: +420 321 785 141-9 tř. 5. května 166 fax: +420 321 785 165 289 11 PEČKY, Czech Republic +420 321 785 167 www.zpa-pecky.cz e-mail: zpa@zpa-pecky.cz...

This manual is also suitable for:

Modact mo ee 52 120Modact mo ee 52 121Modact mo ee 52 123Modact mo ee 52 124Modact mo ee 52 125Modact mo ee 52 122

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