674 Electric tie-rod servomotor to 35 Nm ZEPAROT 1


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Servomotors are revolving, single-revolution, with constant control speed. The motor and the self-locking gear mechanism are stored in a box from steel sheet. Various connecting parts and couplings required for the connection with the controlled equipment are attached to this box and the output shaft. Wires are brought in through sealing outlets.
The control can be ensured either with a three-point connection or a position control, signal 0 to 1V, 0 to 10 V, 0 to 20 mA and 4 to 20 mA. It transfers the input analogue signal to the corresponding position of the servomotor. The position is sensed by the resistance transmitter. If the controlled equipment is stopped forcefully during the revolving movement, the drive is disconnected and failure signalling is activated. This period can be adjusted. It can be completed with a sensor for checking maximum temperature of the motor, which trips it and activates signalling after the maximum pre-set value has been exceeded. The inlet signal can be changed with interconnected pieces, limit positions can be adjusted by means of push-buttons or by means of a computer. It can also be used for adjusting the upper and the lower insensitivity zones, changing the course of movement of the servomotor with respect to the inlet signal (e.g. linear, quadratic, logarithmic or user-defined in 100
points), type of operation of the actuators in case of exceeding the adjusted range by 5 % (open, close, without response, movement to the end position in the direction of the signal).
In addition to position switches and manual control, they can be equipped with:
- Two signalling switches, adjustable within the whole range of the working stroke;
- Resistance position transmitter 100 (one or two);
- Converter with signal 4 to 20 mA for two-wire connection to measuring loop (power supply directly from measured signal);
- Fuse that will ensure, in case of a forced stop of the controlled equipment during the revolving movement, disconnecting the drive and signalling failure for the period exceeding the pre-set time. The initial status is switching the control signal on or off and the period for switching off is calculated from the initial status (it applies to the three-point control).

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  • Pražská 470
  • 50939  Nová Paka
  • Czech republic
  • Telephone: +420 493 761 394
  • Fax: +420 493 721 194
  • E-mail: david.franek@zpanp.cz