Data Sheet for Product

OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control Technical Instructions
Document No. 155-177P25
August 6, 2019
Siemens Industry, Inc. Page 11
Wiring
All wiring must conform to NEC and local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use
autotransformers.
The maximum rating for a Class 2 step-down transformer is 100 VA. Determine the
supply transformer rating by summing the VA ratings of all actuators and all other
components used.
It is recommended that one transformer does not power more than 10 actuators.
WARNING:
Mixed switch operation is not permitted to the switching outputs of both auxiliary
switches (A and B).
Either AC line voltage from the same phase must be applied to all six outputs of
the dual auxiliary switches, or UL-Class 2 voltage must be applied to all six
outputs.
NOTE: With plenum cables, only UL-Class 2 voltage is permitted.
CAUTION:
Do not parallel wire GBB13x or GIB13x actuators with other type of actuator
including GBB/GIB actuators with date codes earlier than 501.
Wire Designations
Each wire has the standard symbol printed on it. See Table 2.
Figure 22. 24 Vac with Auxiliary Switches.
Figure 23. 24 Vac, Floating Control.
Table 2. Wire Designations.
Standard
Symbol
Function
Terminal
Designations
Color
1
Supply (SP)
G
Red
6
Control signal clockwise
Y1
Violet
7
Control signal counterclockwise
Y2
Orange
S1
Switch A – Common
Q11
Gray/red
S2
Switch A – Normally Closed
Q12
Gray/blue
S3
Switch A – Normally Open
Q14
Gray/pink
S4
Switch B – Common
Q21
Black/red
S5
Switch B – Normally Closed
Q22
Black/blue
S6
Switch B – Normally Open
Q24
Black/pink
P1
Feedback Potentiometer 0 to 100% P1 – P2
a
White/red
P2
Feedback Potentiometer Common
b
White/blue
P3
Feedback Potentiometer 100 to 0% P3 – P2
c
White/pink