Electric open/close actuators
Fig. 10: Open/close control with NC or NO contact
S1
Direction of rotation
OPEN
1
CLOSED 2
Fig. 11: Open/close control with changeover contact
S1
Direction of rotation
Pos. 2
1
Pos. 3
2
Fig. 12: 3-point control with NC or NO contact
S1
S2
Direction of rotation
OPEN OPEN Actuator has stopped (undefined posi-
tion)
OPEN CLOS
ED
1
CLOS
ED
OPEN 2
CLOS
ED
CLOS
ED
2
Fig. 13: 3-point control
Electrical connection
Air terminal devices Ceiling diffusers
9
