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ZPA Pecky, a.s. MODACT MTN Mounting Instructions

Electric linear (pull-rod) actuators
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Elect ric L in ear (Pu ll-ro d )
actu ato rs
Type num b ers 52 442, 52 443
4/19

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Summary of Contents for ZPA Pecky, a.s. MODACT MTN

  • Page 1 Elect ric L in ear (Pu ll-ro d ) actu ato rs Type num b ers 52 442, 52 443 4/19...
  • Page 2 ZPA Pečky, a.s. is certified company in accordance with ISO 9001 as amended.

  • Page 3: Table Of Contents

    Surrounding temperature Operating temperature for MODACT MTN actuators is from -25 °C to +70 °C or from -40 °C to +60 °C, for MODACT MTP actuators from -25 °C to +60 °C.

  • Page 4: Operating Mode, Service Life Of Actuators

    – seaside) Operating position The actuators MODACT MTN, MTP, type no. 52 442, 52 443 can be used in any operating position. 3. OPERATION MODE, SERVICE LIFE OF ACTUATORS Operation mode According to ČSN EN 60 034-1, actuators can be operated in S2 load category (the course of load is shown in the picture).

  • Page 5: Technical Data

    The rated supply voltage of the actuators is 3 x 230 / 400 V, 50 Hz with permissible line voltage fluctuations between +10 % and -15 % and frequency shift within ±2 %. Protective enclosure Protection of the actuators MODACT MTN (MODACT MTN Control) – IP 55 MODACT MTP (MODACT MTP Control) – IP 67 Noise Acoustic pressure level A max.

  • Page 6: Actuator Outfit

    Position transmitters The MODACT MTN, MTP electric actuators can be supplied without position transmitter can be fitted with position transmitter: a) Resistance transmitter 1 x 100 Ω.
  • Page 7 Type DCPT3 active current transmitter. Power supply to the current loop is not a part of the actuator. Maximum loading resistance of the loop is 500 Ω. For variants MODACT MTN, MTP Control with the regulator ZP2.RE5, it is used as a position sensor.

  • Page 8: Electric Parameters

    Connector According to the customer's requirements the MODACT MTN, MTP actuators can be fitted with the connector to provide for connection of control circuits. This connector uses screw terminals allowing conductors with a maximum cross-section 4 mm to be connected.

  • Page 9: Description

    Deviations of basic parameters Tripping thrust ±12 % of the maximum value of the range Adjusting speed -10 % of the maximum value of the range +15 % of the rated value (in no-load operation) Setting of signalling switches ±2.5 % of the maximum value of the range (for the ranges, refer to the Mounting instructions).
  • Page 10 The electric motor has its own terminal board 14 with a cable leadthrough. The position of the output shaft can be read on a position indicator mounted on the pull-rod. The individual operating functions of the actuator, e.g., torque-limit switching,position-limit switching, auxiliary signalling, remote position indication (potentiometer position transmitter), are provided by mechanical groups (units), which are accommodated on the control board enclosed in the control box (Figs 2 and 2a).
  • Page 11 Caution! The microswitches used in the individual units do not allow two voltages of different values or phases to be applied to contacts of the same microswitch. Thus, they can be used as a switch, cut-out or change-over switch for a singlecircuit only. For control of the actuator at the site of installation, deblocking device consisting of deblocking switch and local control switch can be fitted, if required.
  • Page 12 the minimum and maximum torques. In this way, the amount of tripping torque (in Nm) per scale division is obtained, making it possible to determine by interpolation the scale division with which the slot in the segment 27 or 28 should tally.
  • Page 13 Output shaft Gearbox Cams Table for setting the working stroke of the gearbox of the signalling unit Actuator Type No. Gear - Adjustment range of working stroke change step 52 442 52 443 10 - 12,5 mm 12,5 - 52,5 mm 20 - 66 mm III.
  • Page 14 d) Rotate the tripping rod 58 at an angle of 90°. As a result, the rod should shift out again. If this is not the case, turn the screw 56 or 59 by a small amount. e) Readjust the valve to the OPEN position by the required number of revolutions, making use of the actuator. f) Depress the tripping rod 58 again in the vertical direction and position it at an angle of 90°...
  • Page 15 Wheel on transmitter - gears (version with resistance position transmitter) For set up of suitable gear level we will adjust resistive transmitter according to this procedure: Due to graded gear ratio of signalling unit the runner of potentiometer does not move always in full range of resistance path, but only in some parts. During setting of signalling unit to end positions "open"...
  • Page 16 Current position transmitter CPT 1Az – setting Before starting setting the current transmitter it is necessary to set the end-limit positions (torque or position switches) of the actuator and connect them into the tripping circuit of the electric motor. In case of an external source of feeding voltage, verification must be carried out that it does not exceed the maximum value 30 V DC (limit value when CPT 1Az is still not damaged).
  • Page 17 In case the correction of the current 20 mA was considerable repeat adjustment for 4 mA and 20 mA once again. Disconnect the milli-ammeter. The screw secured by a drop of varnish situated nearer to the centre must not be turned. Retighten the countershafts fixing the transmitter shim plates and secure with a drop of varnish against loosening.

  • Page 18: Packing And Storing

    5. Record of standard parameters On switching-on the power supply, keep the push-buttons “4” and “20” depressed and release them after a double blink of LED. ATTENTION! With this record, the transmitter calibration is also overwritten and, therefore, it must be repeated!! Parameter setting Position “4 mA”...

  • Page 19: Attachment To A Valve

    10. ATTACHMENT TO A VALVE Place the actuator on the valve so that its output pull-rod can be connected to the output pull-rod of the valve. Attach the actuator to the valve and check the attachment by rotating the handwheel. Remove the terminal box cover and wire the actuator, according to the internal and external circuit layouts.

  • Page 20: Failures And Their Removal

    Note: The Ciatim 221 lubricant is designed for the friction points of rubber bushings against metal surfaces, roller brake, the hub of an outer cogged wheel of a planetary-gear differential of actuators 52 442 (for locations of friction between the shaft and other surfaces). Moreover, the rectilinear mechanism 11 (Fig.

  • Page 21: Tables - Basic Parameters

    4 ) Design without thrust locking after reversation have at end position capital letter M (for example 52 442.6211NM). 5 ) The MODACT MTN, MTP Control actuators with ZP2.RE5 regulator - the digit “5” is put on the 11th place.
  • Page 22 Table 2 – Connecting dimensions – specification of the 7th place of Type No. 52 442.xxxxx Design Design Character on 7th place Character on 7th place spacing of columns A (160 mm) spacing of columns B (150 mm) Aa1I Ba1I Aa1II Ba1II Aa1III...
  • Page 26 Dimensional sketch of linear transmission unit for MODACT MTN, MTP 40 electric actuators, Type No. 52 443.x2xxx – design with flange – non standard (other dimensions and designs of actuators are according to fig. 14, 15, 16) M20x1,5 A – A 4x ø13...

  • Page 27: Wiring Diagrams Of Actuators Mtn, Mtp

    Wiring diagrams of MODACT MTN, MTP electric actuators Legend: SQ1 (MO) – OPEN torque-limit switch CPT 1Az – Analog adjustable current position transmitter SQ2 (MZ) – CLOSE torque-limit switch DCPT3 – Digitally adjustable current position transmitter SQ3 (PO) – OPEN position-limit switch DCPZ –...
  • Page 28 – se svorkovnicí 3-phase motor Open Close Outlet Control voltage position Wiring diagram of MODACT MTN, MTP Control electric actuators – with contactors Zapojení elektrických servomotorů MODACT MON, MOP Control – se stykači – with terminal board – se svorkovnicí P3-0947...
  • Page 29 Wiring diagram of MODACT MTN, MTP Control electric actuators – with contactors and BMO Zapojení elektrických servomotorů MODACT MON, MOP Control – se stykači a BMO – with terminal board P3M-0948 – se svorkovnicí 3-ph motor CPT 1Az Outlet position Zapojení...
  • Page 30 Wiring diagram of MODACT MTN, MTP Control electric actuators – with contactors, ZP2.RE5 regulator and BMO Zapojení elektrických servomotorů MODACT MON, MOP Control – se stykači, regulátorem ZP2.RE5 a BMO Zapojení elektrických servomotorů MODACT MONJ – se svorkovnicí P3M-0950 – with terminal board –...
  • Page 31 Wiring diagram of MODACT MTN, MTP Control electric actuators Zapojení elektrických servomotorů MODACT MON, MOP Control - se stykači – with contactors Zapojení elektrických servomotorů MODACT MON, MOP Control - se stykači – s konektorem – with connector – s konektorem...
  • Page 32 Wiring diagram of MODACT MTN, MTP Control electric actuators Zapojení elektrických servomotorů MODACT MON, MOP Control - se stykači a regulátorem ZP2.RE5 Zapojení elektrických servomotorů MODACT MON, MOP Control - se stykači a regulátorem ZP2.RE5 – with contactors and ZP2.RE5 regulator –...

  • Page 33: Spare Parts List

    List of spare parts of MODACT MTN, MTP actuators (for 5 years of operation) Drawing or ČSN Designation Application Standard No. 52442 Sealing ring 125x3 PN 02 9281.2 Packing between power gear box and flange with gears Sealing ring 130x3 PN 02 9281.2...
  • Page 34 NOTES...
  • Page 35 MODACT MPS, MPSP, MPSED, MPSPED Electric rotary single turn lever actuators with a constant output speed MODACT MTN, MTP, MTNED, MTPED Electric linear thrust actuators with a constant output speed Deliveries of assembled actuator + valve (or MASTERGEAR gearbox) combinations...
  • Page 36 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 mtp52 44252 443

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