Siemens OpenAir GIB Series Technical Instructions page 11

OpenAir™ GBB/GIB Series Non-spring Return, 24 Vac, Floating Control
Wiring
Wire Designations
Figure 22. 24 Vac with Auxiliary Switches.
Standard
Symbol
1
6
7
S1
S2
S3
S4
S5
S6
P1
P2
P3
Siemens Industry, Inc.
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:
CAUTION:
Do not parallel wire GBB13x or GIB13x actuators with other type of actuator
including GBB/GIB actuators with date codes earlier than 501.
Each wire has the standard symbol printed on it. See Table 2.
Table 2. Wire Designations.
Function
Supply (SP)
Control signal clockwise
Control signal counterclockwise
Switch A – Common
Switch A – Normally Closed
Switch A – Normally Open
Switch B – Common
Switch B – Normally Closed
Switch B – Normally Open
Feedback Potentiometer 0 to 100% P1 – P2
Feedback Potentiometer Common
Feedback Potentiometer 100 to 0% P3 – P2
With plenum cables, only UL-Class 2 voltage is permitted.
Figure 23. 24 Vac, Floating Control.
Designations
Technical Instructions
Document No. 155-177P25
Terminal
Color
G Red
Y1 Violet
Y2 Orange
Q11 Gray/red
Q12 Gray/blue
Q14 Gray/pink
Q21 Black/red
Q22 Black/blue
Q24 Black/pink
a White/red
b White/blue
c White/pink
June 22, 2015
Page 11