Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as
design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. © 2016
Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089
Tel. + 1 847-215-1000
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Document No. 155-328P25
Printed in the USA
Page 11
Wiring Diagram
1
Signal input "setpoint shift"
2
Measuring neutral
4
0 to 10 Vdc output/cooling
5
Ground for 0 to 10 Vdc
output/cooling
6
Operating voltage 24 Vac negative
7
Operating voltage 24 Vac positive
8
Positive control for 3-pos actuator
9
Return control signal open
10
Return control signal close
D1
Signal input for potential-free
operating mode changeover switch
GND
Ground
Figure 12. Wiring Diagram.
NOTE:
When wiring to an SSC81.5U actuator, an earth ground, isolating, Class 2
transformer is recommended. However, if you use an auto or polarized
transformer, the wiring polarity must be maintained through the controller to
the SSC81.5U for proper operation. For example, if G/G0 are reversed to the
controller, they must also be reversed to the actuator.
Dimensions
All dimensions in
inches
(millimeters)
Figure 13. RCU61U Dimensions.
Figure 14. Base Plate Dimensions.
