GBB/GIB Series Non-spring Return, 24 Vac, Modulating Control
Technical Instructions
Document Number 155-176P25
June 22, 2015
Siemens Industry, Inc.
Page 9
Operation,
Continued
Control Signal
Adjustment Example
Open the actuator from 0% to 50% (45°) using a control signal of Umin = 2V to Umax =
10V.
Calculating the value of
∆
U:
∆
U
100 [%] x (U max U min)
Working angle of rotation [%]
100% x (10V - 2V)
50%
16 V
=
−
=
=
Settings:
Uo = 2V;
∆
U = 16V
Umin = minimum control signal
Umax = maximum control signal
Figure 16. Example.
Dual Auxiliary Switch
GBB/GIB
164x, and
GBB/GIB
166x
Actuator Scale:
Clockwise
Adjustment range for Switches A and B
Setting interval: 5°
Switching hysteresis: 2°
Actuator Scale:
Counterclockwise
NOTE:
The auxiliary switch setting shafts turn together with the actuator. The scales are
valid only when the actuator is in the "0" position on clockwise motion.
To change the settings of A and B, use a
flat-blade screwdriver to turn the switch
adjustment dials to the desired setting at
which a signal is to be given.
Factory setting
Switch A
5°
Switch B
85°
Figure 17. Dual Auxiliary Switch Dials.
