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RWD68U Universal Controller 

Technical Instructions 

 

Document Number 155-738 

 

January 14, 2005 

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. Other product or company names mentioned herein may be the trademarks of their respective owners. 
© 2005 Siemens Building Technologies, Inc.

 

Siemens Building Technologies, Inc.

 

1000 Deerfield Parkway 

Your feedback is important to us. If you have 
comments about this document, please send 

 

Dimensions 

In Inches (Millimeters) 

TH0765R1

5.12 (130)

4.17 (1

0

6

)

3.50 (8

9)

1.80 (45.7)

4.37 (111)

2.22 (56.5)

1.89 (47.9)

1.22 (31)

0.16 (4)

0.16 (4)

 

Figure 23.  RWD68U Controller Dimensions. 

 

TH0745R1

5.91 (150)

7.87 (2

0

0

)

2.41 (61.2)

 

Figure 24.  ARG62.21 Enclosure Dimensions. 

 

 
 
 
 
 
 
 
 

Buffalo Grove, IL  60089-4513 
U.S.A. 

them to 

[email protected]

 

Page 11 

 

Document No. 155-738 

Country of Origin: US 

Содержание RWD68U

Страница 1: ...gies program software NOTE For complete supporting technical documentation including training presentations see www us sbt siemens com hvp components Features Stand alone electronic temperature controller with P or P I response 24 Vac operating voltage Control application selectable via Application Number Active input scale can be selectable Limit and direction of the output scale can be freely as...

Страница 2: ... to 916 Energy Management Equipment Terminals Screw terminals min max conductors Minimum 24 AWG 1 Maximum 16 AWG 2 or 14 AWG 1 Weight RWD68U Controller 10 72 oz 304 grams With packaging 12 64 oz 358 grams Analog Inputs X1 X2 Siemens Ni 1000 ohm 32 F 0 C Controller measuring range 58 F to 302 F 50 C to 150 C Maximum cable length for 14 AWG 984 ft 300 m Pt 1000 ohm at 32 F 0 C Controller measuring r...

Страница 3: ...5 155 177P25 GEB Series 132 in lb Non Spring Return Actuators 155 318P25 GCA Series 142 in lb Spring Return Actuators 155 173P25 155 174P25 155 175P25 GMA Series 62 in lb Spring Return Actuators 155 315P25 SKD Valve Actuator with proportional input SKD Valve Actuator with floating input 155 180P25 155 181P25 SKB SKC Valve Actuator with proportional input SKB SKC Valve Actuator with floating input ...

Страница 4: ...se acting independent and dependent control loop or Y2 and Q1 Direct and direct acting independent and dependent control loop NOTE Direct Acting As air temperature increases the control output increases Reverse Acting As air temperature increases the control output decreases TH0599R3 TEMPERATURE SENSOR AIR DAMPER ACTUATOR HEATING COIL COOLING COIL HEATING OR COOLING COIL TWO PIPE FAN OR PUMP TIME ...

Страница 5: ... or a 0 to 10 Vdc active input Universal Input X2 The secondary input for a Siemens Ni 1000 temperature sensor a Pt 1000 temperature sensor an active passive remote setpoint transmitter or a 0 to 10 Vdc active input Digital Input D1 Selects the day night changeover Changeover occurs via potential free contacts between D1 and M Typically a time clock controls D1 input Analog Output Y1 Output Y1 can...

Страница 6: ...auxiliary function in Night mode TH0756R1 X1 Y1 Q1 Temp Y X2 Q1 Figure 13 Remote Setpoint A remote setpoint transmitter QAA25U connected to X2 and configured accordingly enables setpoint adjustment Active measurement from 0 to 10 Vdc corresponding adjustable range from 100 to 8000 units Passive measurement from 0 to 1000 Ω corresponding adjustable range from 100 to 8000 units Cascade Control TH075...

Страница 7: ...hangeover Summer operation is selected when the contact is closed Reverse acting output Y1 only is set to direct action cooling Analog changeover Summer operation is selected when the X2 input exceeds the Setpoint Reverse acting output Y1 only is set to direct action cooling NOTE The reverse acting output changeover occurs in Y1 only for application numbers 36 37 56 and 57 and in Q1 only for 16 17...

Страница 8: ...tons on the controller front Additional tools are not necessary The controller can also be programmed via the software tool which plugs into the nine pin port TH0762R1 LCD Display Software Tool Nine Pin Port Program and Display Function Buttons Figure 19 RWD68U Universal Controller LCD The LCD shows the following information for normal operation Current operating values maximum four digits Current...

Страница 9: ...nsformers with double insulation they must be designed for 100 duty When using several transformers in one system the connection terminals G0 ground must be galvanically connected Supplying voltages above 24 Vac to low voltage connections may damage or destroy the controller or any other connected devices Connections to voltages exceeding 24 Vac endanger personal safety The ARG62 21 Protective Hou...

Страница 10: ... PC 9 pin plug TH0764R1 Y1 G Y1 S1 D1 GO Y B M B M X1 X2 M M X2 X1 M M GO G 24 V SN 24 V SP N1 TOOL PC Q12 Q14 Q11 Q1 E1 G G E1 Electrical load N1 RWD68U Controller PC Personal computer Q1 Potential free relay contacts for two position control S1 Time clock or switch SN System neutral SP System potential X1 Main input Termination G appears when X1 is an active sensor X2 Auxiliary input or remote s...

Страница 11: ...tive owners 2005 Siemens Building Technologies Inc Siemens Building Technologies Inc 1000 Deerfield Parkway Your feedback is important to us If you have comments about this document please send Dimensions In Inches Millimeters TH0765R1 5 12 130 4 17 106 3 50 89 1 80 45 7 4 37 111 2 22 56 5 1 89 47 9 1 22 31 0 16 4 0 16 4 Figure 23 RWD68U Controller Dimensions TH0745R1 5 91 150 7 87 200 2 41 61 2 F...

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