Part-turn actuators, Modular allrounders

SQR

Part-turn actuators of the SQR .2 type range are designed for modulating duty (class C) S4 - 25 %.

Actuators of the SQR .2 type range can be combined with various controls: From simple OPEN-CLOSE controls to the micro-controlled version with logging of operating data or fieldbus interface.

Torque range

50 Nm to 2500 Nm

For modulating duty

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Design features

Limit and torque sensing
3-phase and 1-phase AC motors
Handwheel for manual operation
Mechanical position indicator

Service conditions

Wide temperature range
Highest enclosure protection
High quality corrosion protection

Options

Intermediate position switches
Switches in tandem version
Position transmitter
Magnetic limit and torque transmitter
Functional safety: Up to SIL 2 possible for selected configurations

Interfaces

Electrical connection via AUMA plug/socket connector (terminals as an option)
Cable entries in different versions
Valve attachments according to DIN and ISO standards

Specifications

Key information at a glance

Design features

Service conditions

50 Nm – 2500 Nm

Torque range

75 Nm – 1200 Nm

Modulating torque range

1500 c/h

Number of starts (max.)

8 s – 100 s

Operating time for 90°

75 ° – 105 °

Swing angles

IP68

Enclosure protection

Corrosion protection

-30 °C – +70 °C

Ambient temperature

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Product combinations

AC

Actuator controls, Microprocessor-based actuator controls with comprehensive functions

AC actuator controls are your perfect solution if the application requires self-adapting control functions, data logging, a configurable interface or if valve and actuator are to be integrated into a Plant Asset Management System due to advanced diagnostic functions.

AC actuator controls are equipped with a parallel interface for free configuration and/or interfaces to fieldbus systems as used within process automation.

The diagnostic functions comprise a time-stamped event report, torque characteristics logging, continuous recording of temperatures and vibration within the actuator and, furthermore, counting the number of starts and motor running times.

Further to the basic functions, AC actuator controls offer a number of options to meet special demands. These include torque bypass to unseat valves if tightly seated or functions for extending operating times to avoid water hammer within pipelines.

With the development of the AC 01.2, particular emphasis was laid on user-friendliness and the ease of integration of actuators into the DCS. The large graphic display is used to perform menu-controlled programming of the actuator controls, optionally using AUMA CDT via wireless Bluetooth connection. For fieldbus connections, AC programming can be performed from the control room.

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AC-SIL/ACExC-SIL

Actuator controls, Microprocessor-based actuator controls with comprehensive functions

AUMA offers sophisticated control for premium safety requirements with AC 01.2-SIL or ACExC 01.2-SIL actuators controls. SA .2 and SQ .2 actuators combined with these actuator controls can be deployed in safety-related system systems up to SIL 3. AC 01.2 actuator controls in SIL version are equipped with an additional SIL module designed for the execution of safety functions. In case of an emergency at the plant and when requesting a safety function, the standard logic of AC is bypassed and the safety function is performed via the safe SIL module. Consequently, the safety function always overrules standard operation. SA .2 and SQ .2 actuators equipped with these actuator controls have been certified by TÜV Nord. They are suitable for the following safety functions:

Safe OPENING/CLOSING (ESD) up to SIL 2 (single-channel system) or SIL 3 (redundant system) according to IEC 61508 Ed. 2
Safe STOP up to SIL 2 (single-channel system) according to IEC 61508 Ed. 2
Safe end position feedback signal up to SIL 2 according to IEC 61508 Ed. 2 or up to PL c according to ISO 13849 (not integral part of the certificate. A separate declaration of incorporation is available.)

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