Equipment/ functions - Process Valve Solutions

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8 Equipment/ functions Adjustable swing angle During manual operation the swing angle is limited via the internal end stops. If the customer requirements have not been mentioned in the order, the actuator is supplied with a swing angle of 90° The swing angle may be subsequently adjusted within a range of 80° – 110°. The operating time is extended or reduced accordingly. Seating Depending on the design of the valve to be operated, end position switching either limit seating, i.e. by measuring the valve travel completed, or torque seating, i.e. after reaching a defined torque. For this purpose, the Limit seating Speed Other swing angle ranges (option) On request the part-turn actuators may be supplied with different swing angle ranges. The following swing angle ranges are available: ■ 30° – 40° ■ 40° – 55° ■ 55° – 80° ■ 80° – 110° (standard) ■ 110° – 160° ■ 160° – 230° ■ 230° – 320° The actuator runs at nominal output speed up to the set tripping point P. Due to the high reduction ratio and the consequently low output speeds (3.75 rpm at the shortest operating time 4 s for 90°) the overrun may be ignored. actuator is equipped with two independent measuring systems, i.e. limit switching and torque switching. The type of seating has to be taken in P Torque seating Set tripping torque Travel Travel OPEN CLOSED OPEN CLOSED Torque account both when setting the actuator and in the actuator control. However, the processing of signals for the two types of seating differs. After starting from the end position OPEN, the actuator runs in direction CLOSE. In end position CLOSED the torque increases within the valve seat until the actuator is automatically switched off after reaching the set value.
Adjustable torques Minimum and maximum tripping torques for part-turn actuators for open-close duty Equipment/ functions Size SG 05.1 SG 07.1 SG 10.1 SG 12.1 min. [Nm] 100 120 250 500 max. [Nm] 150 300 600 1 200 Torques for part/turn actuators for modulating duty Size SGR 05.1 SGR 07.1 SGR 10.1 SGR 12.1 min. tripping torque [Nm] 100 120 250 500 max. tripping torque [Nm] 150 300 600 1 200 Torque for modulating [Nm] 50 100 200 400 Overload protection against torque peaks The torque switching, used for torque seating in the end position (see page 8), serves as overload protection for the entire travel, even in the case of limit seating. If excessive torque builds up at the obturator in an intermediate position, e.g. due to a trapped object, the torque switching trips after reaching the set tripping torque. After the controls have processed the torque switch signal accordingly, the motor will be switched off. As a result, valve and actuator are protected from damage. If the limit switch signals are processed accordingly in the controls, you can distinguish between a normal torque switch tripping at the end Torque OPEN Set tripping torque Travel positions and tripping in an intermediate position (fault) caused by over-torque. CLOSED 9
Page 1 and 2: ISO 9001 ISO 14001 Certificate Regi
Page 3 and 4: AUMA part-turn actuators are employ
Page 5 and 6: ●Standard ■Option Equipment / f
Page 7: Modulating duty Input signal from p
Page 11 and 12: Magnetic limit and torque transmitt
Page 13 and 14: Running indication (option) As an o
Page 15 and 16: Motor 9 An especially high starting
Page 17 and 18: Motor protection In order to protec
Page 19 and 20: Special connections For special cus
Page 21 and 22: Integral controls (option) with AUM
Page 23 and 24: Advantages of integral controls (op
Page 25 and 26: Explosion protection Lifetime Part-
Page 27 and 28: A Absolute encoder 11 Actor 4 Actua

Equipment/ functions - Process Valve Solutions

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