Basic Documentation
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Siemens  VAV Compact Controller Modbus RTU  A6V10631862_en--_e 
Smart Infrastructure    2021-10-26 
2.2  Design and device parts 
The VAV Compact Controllers consist of a differential pressure sensor, actuator 
and digitally configurable control electronics. They are intended for mounting on 
damper shafts of a minimum length of 30 mm. They consist of base and 2-sectional 
housing.  
Components contained in the base: 
•  Steel base plate with damper drive shaft fixing for different drive shaft 
diameters / cross-sectional areas (cf. section 2.3) and angular rotation limiter, 
•  maintenance-free, low-noise gear train, 
•  magnetic hysteresis clutch with practically contact-free force transmission; this 
means that the actuator is locking- and overload-proof, also in continuous 
operation. 
Components contained in the housing (Note: the housing cover can’t be 
removed):  
•  controller electronics, 
•  differential pressure sensor, 
•  synchronous motor for the damper actuator. 
1  Shaft attachment screw 
2  LED 
3  Push button 
4  Configuration and maintenance interface (below cover) 
5  Connection nozzle for measuring differential pressure in 
  the VAV box 
6  Connection nozzle for measuring differential pressure in 
  the VAV box ("+": Side with higher pressure) 
7  Two connecting cables (power and communications),  
  2-core each 
8  Disengagement of gear train 
9  Rotation angle display 
10  Rotation angle check screw 
Manual control of the air dampers is possible by gear train disengagement (8) 
when the VAV Compact Controller is disconnected from the power supply. 
2.3  Dimensions 
min. 100
min.
200
min. 80
min. 6
8 20
ø7
2
5
180
X
8 - 16 mm
12.8 mm
15 mm
3547M01
14 x 12
X =
4.15
71
26.5
87
158
137
Ø 3...8
43
41.3
61
9.6
Measures in mm 
2
3
4
5
8
9
10
3547J01                   
6
1
7
Main device parts 
Gear train 
disengagement 










