Siemens sqm5 사용자 설명서

Technical Instructions 

SQM5… Reversing Actuators 

Document No. 155-517P25 
July 9, 2007 
 

Page 2 

Siemens Building Technologies, Inc. 

 

•  Connections for both base and face mounting 
•  Low hysteresis actuator and potentiometer gearing 
•  Externally visible position indication 
•  Selection of input and output signals 
•  Zero and span adjustment 
•  Field exchangeable circuit boards and potentiometers 
•  Electronic damper linearization function 
•  Split range and selectable parallel or master/slave operation 
•  Adjustable input signal override function 

SQM5… actuators are uniquely suited for both industrial and commercial 
applications. The high level of accuracy permits precise modulating control of 
industrial process and process heating applications, often significantly enhancing 
performance and product quality. 

In commercial and industrial burner applications requiring high turndown and 
reliable ignition, the auxiliary switches can be applied to create separate positions 
for burner ignition and low fire. In dual fuel applications, additional switches can be 
used to create separate high fire, low fire and ignition positions for each fuel. The 
economy position switch is used to drive the actuator to the full closed position 
when the burner is off. 

In all applications, commissioning is simplified. Shaft and cam drum disengagement 
clutches allow for the quick manual alignment of the actuator shaft and switch 
cams. The forward/reverse toggle switch in combination with the auto/manual 
selector switch provides direct manual control.