Siemens SQM56.664R1Z3 Istruzioni tecniche
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SQM5...
Reversing Actuators
ISO 9000 and 14000
REGISTERED FIRM
Description
Features
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SQM5... reversing actuators are used for the positioning of flow control valves, butterfly
valves, dampers, or any application requiring rotary motion. The SQM5... actuators
accommodate control input signals of 4 to 20 mA, 0 to 135 Ω, 0 to 10 Vdc, 0 to 20 mA,
position proportional and floating control. The available output signals include
4 to 20 mA, 0 to 135 Ω, 0 to 10 Vdc, 0 to 20 mA, and 0 to 1000 Ω. SQM5... actuators
are available with up to six internal, easily adjustable switches.
A selection of exchangeable circuit boards provide a variety of functions including
auto/manual selector switch, manual forward/reverse toggle switch, zero and span
adjustment, parallel or master/slave operation, split range control, input signal override,
and selectable electronic linearization.
The SQM5... is engineered for precision. It is particularly well suited for applications
requiring a high degree of modulating accuracy and repeatability. Drive shaft play is
limited to 0.3° with a modulating accuracy of 250 repositions through 90° of travel.
The SQM5... actuator may be mounted in any position. A selection of mounting
brackets and shafts provides installation flexibility and allows for the simple
replacement of most competitive actuators.
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Modulating accuracy of 250 repositions through 90°
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Two limit switches, plus up to four internal auxiliary switches
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Fully closed "economy position" switch
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Drive shaft and cam drum disengagement clutches
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Auto/manual switch, manual control forward/reverse toggle switch
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UL, CSA approved 24 and 110 Vac versions
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CE approved 220 Vac versions
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Field reversible clockwise (cw) or counterclockwise (ccw) operation
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Various torque ratings and running times available
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Selection of field exchangeable single-ended and dual-ended shafts
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Mounting brackets to replace competitive actuators
Technical Instructions
Document No. 155-517P25
Siemens Building Technologies, Inc.
July 9, 2007