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Transcript of Siemens Building Technologies Inc. HVAC Products RWD controllers 1 RWD CONTROLLERS TECHNICAL HVAC...
1Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD CONTROLLERS
TECHNICAL
HVAC Products – Americas Region
2Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U
3Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U controller
E1 Electrical load 2-position control N1 RWD82U controllerPCPersonal computerQ1/Q2Potential-free relay contacts for 3-position or 2-position control in 2 stepsS1 Time clock or switchSNSystem neutralSP System potentialX1 Main input (Termination G appears when X1 is an active sensor)X2 Auxiliary input or remote setpoint (Termination G appears when X2 is an active sensor)Y1 Actuator with 3-position control 24 Vac
RWD82U Connection Diagram
4Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82UApplications with corresponding selectable auxiliary function
Application No. Summary
(H = Heating, C =Cooling, R = ReverseActing, D = DirectActing)(The 1st digit = MainControl Loop, The 2nddigit = Auxiliary ControlLoop)
MainLoop
#1xH+H or R+R
depend.
#2xH+H or R+R
independ.
#3xH or R 3-position
#4xH+C or R+D
#5xC+C or D+D
independ.
#6xC+C or D+D
depend.
#7xC or D 3-position
Auxiliary Loop#x0 No auxiliary #10 #20 #30 #40 #50 #60 #70#x1 Remote Setpt #11 #21 #31 #41 #51 #61 #71#x2 Absolute lim iter #12 #22 #32 #42 #52 #62 #72#x3 Relative lim iter #13 #23 #33 #43 #53 #63 #73#x4 Compensation shift #14 #24 #34 #44 #54 #64 #74#x5 Cascade - - #35 - - - #75#x6 Win/Sum digital - #26 #36 #46 - - -#x7 Win/Sum analog - #27 #37 #47 - - -#x8 Max. priority - - - - - - #78#x9 Main loop is usingactive input #19 #29 #39 #49 #59 #69 #79
5Siemens Building Technologies Inc.
HVAC Products
RWD controllers
Main Sequences
RWD82U
6Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main Sequence2 Heating sequences or 2 Reverse Acting sequences (Dependent)
Application No.: 10 - 19• 2 electric heaters• heating valve with heating pump
OFF
ONSD
Setpoint
Q
(SD = Switching Differential)
7Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main Sequence2 Heating sequences or 2 Reverse Acting sequences (Independent)
Application No.: 20 - 29
X1Q1
Temp.RWD82U
On
OffQ1
Q2
Q2
Q1
OFF
ON
SD SD2 2
SD
Setpoint
Q2
SD SD2 2
SD
Q
(SD = Switching Differential)
8Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main SequencesHeating sequence or Direct or Reverse Acting Sequence (3-point)
Application No.: 30 - 39
X1Q2Q1
Temp.RWD82U
On
OffQ1 Q2
SetpointLoad0%
100%
9Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main Sequence
Application No.: 40 - 49
X1Q2Q1
Temp.RWD82U
On
OffQ1 Q2
Q2
OFF
ON
SD SD2 2
SD
Setpoint
Q1
SD SD2 2
SD
Q
(SD = Switching Differential)
Heating + Cooling sequences or Reverse + Direct acting sequences
10Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main Sequence2 Cooling sequences or 2 Direct Acting sequences (Independent)
Application No.: 50 - 59
Q1
OFF
ON
SD SD2 2
SD
Setpoint
Q2
SD SD2 2
SD
Q
(SD = Switching Differential)
X1Q1
Temp.RWD82U
On
OffQ1
Q2
Q2
11Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main Sequence2 Cooling sequences or 2 Direct Acting sequences (Dependent)
Application No.: 60 - 69
X1Q1
Temp.RWD82U
On
OffQ1
Q2
Q2
OFF
ONSD
Setpoint
Q
(SD = Switching Differential)
12Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD82U - Main SequencesCooling sequence or Reverse or Direct Acting sequence (3-position)
Application No.: 70 - 79
X1Q2Q1
Temp.RWD82U
On
OffQ1 Q2
SetpointLoad0%
100%
13Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62U
14Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62U controllerTermination
N1 RWD62U controllerPC Personal computerS1 Time clock or switchSN System neutralSP System potentialX1 Main input (Termination G appears when X1 is an active sensor)X2 Auxiliary input or remote setpoint (Termination G appears when X2 is an active sensor)Y1, Y2 Valve actuator 1 and 2/Damper actuator 1 and 2
15Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62Applications with corresponding selectable auxiliary function
Application No. Summary
(H = Heating, C = Cooling, R =Reverse Acting, D = Direct Acting)(The 1st digit = Main Control Loop,The 2nd digit = Auxiliary ControlLoop)
MainLoop
#1xH or D sequence
#2xH + H or D + D
sequences
#3xH + C or D + R
sequences
#4xC or D sequence
#5xC + C or D + D
sequencesAuxiliary Loop#x0 No auxiliary #10 #20 #30 #40 #50#x1 Remote Setpt #11 #21 #31 #41 #51#x2 Absolute limiter #12 #22 #32 #42 #52#x3 Relative limiter #13 #23 #33 #43 #53#x4 Compensation shift #14 #24 #34 #44 #54#x5 Cascade #15 #25 #35 #45 #55#x6 Win/Sum digital #16 #26 #36 - -#x7 Win/Sum analog #17 #27 #37 - -#x8 Max. priority - - #38 #48 #58#x9 Main loop is using active input #19 #29 #39 #49 #59
16Siemens Building Technologies Inc.
HVAC Products
RWD controllers
Main Sequences
RWD62U
17Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62 - Main SequencesHeating sequence or Direct Acting sequence
Application No.: 10 - 19
Y1
Out
put
Vol
tage
SetpointLoad
X1Y1
Temp.RWD62U
Y
Output Y1 can be switched from D.A. to R.A.
18Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62 - Main Sequences2 Heating sequences or 2 Direct Acting sequences
Application No.: 20 - 29
Y1
Out
put
Vol
tage
SetpointLoad
Y2
Setpoint
X1Y1
Temp.RWD62U
Y Y2
Outputs Y1 and Y2 can be switched from D.A. to R.A.
19Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62 - Main SequencesHeating + Cooling sequences or Direct+ Reverse acting sequences
Application No.: 30 - 39
Y1
Out
put
Vol
tage
SetpointLoad
Y2
Setpoint
X1Y2Y1
Temp.RWD62U
Y
Output Y1 can be switched to R.A. and Y2, D.A.
20Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62 - Main SequencesCooling sequences or Reverse Acting sequences
Application No.: 40 - 49
X1Y1
Temp.RWD62U
Y
Y1
Out
put
Vol
tage
SetpointLoad
Output Y1 can be switched to D.A.
21Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD62 - Main Sequences
Application No.: 50 - 59
X1Y2Y1
Temp.RWD62U
Y
Y1
Out
put
Vol
tage
SetpointLoad
Y2
Setpoint
2 Cooling sequences or 2 Direct Acting sequences
Output Y1 and Y2 can be switched to D.A.
22Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U
23Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U controller
E1 Electrical loadN1 RWD68U ControllerPC Personal computerQ1 Potential-free relay contacts for two-position controlS1 Time clock or switchSN System neutralSP System potentialX1 Main input (Termination G appears when X1 is an active sensor)X2 Auxiliary input or remote setpoint (Termination G appears when X2 is an
active sensor)Y1 Valve actuator/Damper actuator
24Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68UApplications with corresponding selectable auxiliary function
Application No. Summary(H = Heating, C =Cooling, R = ReverseActing, D = DirectActing)(The 1st digit = MainControl Loop, The 2nddigit = Auxiliary Control
Loop)
MainLoop
#1xH or D
sequence
#2xH+H or D+D
depend.
#3xH+H or D+D
independ.
#4xDig H + ana C or
Dig R + ana D
#5xAna H + dig C orana R + dig D
#6xC+C or D+D
depend.
#7xC+C or D+Dindepend .
#8xC or D
sequence
Auxiliary Loop#x0 No auxiliary #10 #20 #30 #40 #50 #60 #70 #80
#x1 Remote Setpt #11 #21 #31 #41 #51 #61 #71 #81#x2 Absolute limiter #12 #22 #32 #42 #52 #62 #72 #88#x3 Relative limiter #13 #23 #33 #43 #53 #63 #73 #83#x4 Compensation shift #14 #24 #34 #44 #54 #64 #74 #84#x5 Cascade - #25 #35 #45 #55 #65 #75 -#x6 Win/Sum digital #16 - #36 #46 #56 - - -#x7 Win/Sum analog #17 - #37 #47 #57 - - -#x8 Max. priority - - - #48 - #68 #78 -#x9 Main loop is usingactive input #19 #29 #39 #49 #59 #69 #79 #89
25Siemens Building Technologies Inc.
HVAC Products
RWD controllers
Main Sequences
RWD68U
26Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main SequenceHeating sequence or Reverse Acting sequence
Application No.: 10 - 19
X1Q1
Temp.RWD68U
On
OffQ1
OFF
ON
SD SD2 2
SD
Setpoint
Q
(SD = Switching Differential)
27Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence2 Heating sequences or 2 Direct Acting sequences (Dependent)
Application No.: 20 - 29• Heating coil with electric heater• By-pass system with pump & 3-way valve• Output Y1 can be switched to R.A.
Y1Max V
HeatingLoad
Setpoint
Out
put
Vol
tage Q1
OFF
ON
Min V X1Y1Q1
Temp.RWD68U
Y
Q1
28Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence
Application No.: 30 - 39
2 Heating sequences or 2 Direct Acting sequences (Independent)
Y1
Min VLoad
Setpoint
Oup
tut
Vol
tage
e
OFF
ONQ1SD
SD SD2 2
Max V
X1Y1 Q1
Temp.RWD68U
Y
Q1
Output Y1 can se switched to R.A.
29Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence
Application No.: 40 - 49
X1Y1 Q1
Temp.RWD68U
Y
Q1
Heating + Cooling sequences or Reverse + Direct acting sequences
Y1
Min VLoad
Setpoint
Oup
tut
Vol
tage
e
OFF
ONQ1 SD
SD SD2 2
Max V
Output Y1 can be switched to R.A.
30Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence
Application No.: 50 - 59• Heating Coil and Direct Chiller• Output Y1 can be switched to D.A.
X1Y1 Q1
Temp.RWD68U
Y
Q1
Y1
Min VLoad
Setpoint
Oup
tut
Vol
tage
e
OFF
ONQ1SD
SD SD2 2
Max V
Heating + Cooling sequences or Reverse + Direct acting sequences
31Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence2 Cooling sequences or 2 Direct Acting sequences (Dependent)
Application No.: 60 - 69• Direct chiller• Output Y1 can be switched to D.A.
Y1Max V
CoolingLoad
Setpoint
Out
put
Vol
tage Q1
OFF
ON
Min V X1Y1Q1
Temp.RWD68U
Y
Q1
32Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main Sequence2 Cooling sequences or 2 Direct Acting sequences (Independent)
Application No.: 70 – 79Output Y1 can be switched to D.A.
X1Y1Q1
Temp.RWD68U
Y
Q1
Y1
Min VLoad
Setpoint
Oup
tut
Vol
tage
e
OFF
ONQ1SD
SD SD2 2
Max V
33Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD68U - Main SequenceCooling sequence or Direct Acting sequence
Application No.: 80 – 89Output Y1 can be switched to D.A.
X1Q1
Temp.RWD68U
On
OffQ1
OFF
ON
SD SD2 2
SD
Setpoint
Q
(SD = Switching Differential)
34Siemens Building Technologies Inc.
HVAC Products
RWD controllers
Auxiliary Functions
RWD
35Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
A remote setpoint transmitter QAA25U (1K Ni) or 544-764 1K Plat), connected to X2 and configured accordingly, assumes the function of the setpoint
1. Remote setpoint (#_1)
X1Y2Y1
Temp.RWD62U
YX2
36Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
The limiter function with PI control enables absolute(or relative) maximum or minimum limitation of the supply air temperature (X2).When the value drops below or exceeds the limiter setpoint, the limiter function overrides the standard control function to maintain the limiter setpoint.
2. PI Limiter (#_2 & #_3)
X1Y2Y1
Temp.RWD62U
Y X2
37Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
The temperature setpoint X1 is controlled by the temperature as measured at sensor X2.
Configuration of the RWD62U defines the influence on setpoint X1.
The example shows the supply air temperature setpoint as controlled by the outside temperature.
3. Setpoint Compensation (#_4)
X2Y2Y1
Temp.RWD62U
YX1
38Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
X2 - Supply air temperature sensor
You can select the PI/PI room/supply air temperature cascade control. In this case, the virtual PI room temperature controller determines the setpoint within the limiter setpoints for the PI supply air temperature controller.
4. Cascade Control (#_5)
X1Y2Y1
Temp.RWD62U
Y X2
39Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
X2M terminals (Digital/analog)
A digital switch or anlog output between terminals X2 and M can be used to implement summer/winter changeover.
5. Summer / Winter operation (#_6 & #_7)
X1Y2Y1
Temp.RWD62U
YD1
T
40Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
Digital changeover
When the contact is closed, summer operation is selected. Output Y1 is set to Reverse Action (cooling).When the contact is open, winter operation is selected. Output Y1 is set to Direct Action (heating).
Analog changeover
When the X2 reach over the setpoint, summer operation is selected. Output Y1 is set to Reverse Action (cooling).When the X2 is below the setpoint, winter operation is selected. Output Y1 is set to Direct Action (heating).
5. Summer / Winter operation (#_6 & #_7) (Cont.)
41Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
If the input value (0…10V) of the input X2 is greater than the calculated output of the cooling sequence, the output will use the X2 input value as output value. This is active even when the controller is working with the heating sequence.
6. Maximum Priority (#_8)
X1Y2Y1
Temp.RWD62U
Y X2
42Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Auxiliary Functions
D1M potential-free contact (External time clock)
A timer contact between terminals D1 and M can be used to implement setpoint changeover for day/night operation.
When the contact is open, the setpoint for day operation is selected.
When the contact is closed, the setpoint for night operation is selected.
7. Day / Night Setpoint (For all RWD’s, independent of App. No.)
X1Y2Y1
Temp.RWD62U
YD1
43Siemens Building Technologies Inc.
HVAC Products
RWD controllers
RWD - Software tool125-3481
•Simple windows based operation
•Numbered standard applications
•Customize applications
•Print-out of final settings
•Hide selected parameters from LCD
•Create your own application library based on system type or customer