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RWD CONTROLLERS TECHNICAL

RWD CONTROLLERS TECHNICAL. HVAC Products – Americas Region. RWD82U. RWD82U controller. E1 Electrical load 2-position control N1 RWD82U controller PC Personal computer Q1/Q2 Potential-free relay contacts for 3-position or 2-position control in 2 steps S1 Time clock or switch

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RWD CONTROLLERS TECHNICAL

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  1. RWD CONTROLLERSTECHNICAL HVAC Products – Americas Region

  2. RWD82U

  3. RWD82U controller E1 Electrical load 2-position control N1 RWD82U controller PC Personal computer Q1/Q2 Potential-free relay contacts for 3-position or 2-position control in 2 steps 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 setpoint (Termination G appears when X2 is an active sensor) Y1 Actuator with 3-position control 24 Vac RWD82U Connection Diagram

  4. RWD82U Applications with corresponding selectable auxiliary function

  5. Main Sequences RWD82U

  6. RWD82U - Main Sequence 2 Heating sequences or 2 Reverse Acting sequences (Dependent) • Application No.: 10 - 19 • 2 electric heaters • heating valve with heating pump

  7. Q2 Q1 X1 On Q2 Q1 Off Temp. RWD82U RWD82U - Main Sequence 2 Heating sequences or 2 Reverse Acting sequences (Independent) • Application No.: 20 - 29

  8. 100% Q1 Q2 X1 0% On Load Q2 Q1 Off Setpoint Temp. RWD82U RWD82U - Main Sequences Heating sequence or Direct or Reverse Acting Sequence (3-point) • Application No.: 30 - 39

  9. Q1 Q2 X1 On Q2 Q1 Off Temp. RWD82U RWD82U - Main Sequence Heating + Cooling sequences or Reverse + Direct acting sequences • Application No.: 40 - 49

  10. Q2 Q1 X1 On Q2 Q1 Off Temp. RWD82U RWD82U - Main Sequence 2 Cooling sequences or 2 Direct Acting sequences (Independent) • Application No.: 50 - 59

  11. Q2 Q1 X1 On Q2 Q1 Off Temp. RWD82U RWD82U - Main Sequence 2 Cooling sequences or 2 Direct Acting sequences (Dependent) • Application No.: 60 - 69

  12. 100% Q1 Q2 X1 0% Load On Q2 Q1 Setpoint Off Temp. RWD82U RWD82U - Main Sequences Cooling sequence or Reverse or Direct Acting sequence (3-position) • Application No.: 70 - 79

  13. RWD62U

  14. RWD62U controllerTermination N1 RWD62U controller PC Personal computer 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 setpoint (Termination G appears when X2 is an active sensor) Y1, Y2 Valve actuator 1 and 2/Damper actuator 1 and 2

  15. Application No. Summary (H = Heating, C = Cooling, R = Reverse Acting, D = Direct Acting) Main #1x #2x #3x #5x (The 1st digit = Main Control Loop, #4x Loop The 2nd digit = Auxiliary Control H + H or D + D H + C or D + R C + C or D + D C or D sequence H or D sequence Loop) sequences sequences sequences Auxiliary 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 RWD62 Applications with corresponding selectable auxiliary function

  16. Main Sequences RWD62U

  17. Y1 Voltage Output Y1 X1 Y Load Temp. Setpoint RWD62U RWD62 - Main Sequences Heating sequence or Direct Acting sequence • Application No.: 10 - 19 Output Y1 can be switched from D.A. to R.A.

  18. Y2 Y1 Output Voltage Load Setpoint Setpoint RWD62 - Main Sequences 2 Heating sequences or 2 Direct Acting sequences • Application No.: 20 - 29 Y1 Y2 X1 Y Temp. RWD62U Outputs Y1 and Y2 can be switched from D.A. to R.A.

  19. Y1 Y2 Voltage Output Y1 Y2 X1 Y Load Temp. Setpoint Setpoint RWD62U RWD62 - Main Sequences Heating + Cooling sequences or Direct+ Reverse acting sequences • Application No.: 30 - 39 Output Y1 can be switched to R.A. and Y2, D.A.

  20. Y1 X1 Y Temp. RWD62U RWD62 - Main Sequences Cooling sequences or Reverse Acting sequences • Application No.: 40 - 49 Output Y1 can be switched to D.A.

  21. Y1 Y2 X1 Y Temp. RWD62U RWD62 - Main Sequences 2 Cooling sequences or 2 Direct Acting sequences • Application No.: 50 - 59 Output Y1 and Y2 can be switched to D.A.

  22. RWD68U

  23. RWD68U controller 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 setpoint (Termination G appears when X2 is an active sensor) Y1 Valve actuator/Damper actuator

  24. Application No. Summary (H = Heating, C = Cooling, R = Reverse #1x #6x #8x #2x #3x #7x Acting, D = Direct #4x #5x H or D C+C or D+D C or D Acting) Main H+H or D+D H+H or D+D C+C or D+D Dig H + ana C or Ana H + dig C or sequence depend . sequence depend. independ. independ . (The 1st digit = Main Loop ana R + dig D Dig R + ana D Control Loop, The 2nd digit = Auxiliary Control Loop) 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 using #19 #29 #39 #49 #59 #69 #79 #89 active input RWD68U Applications with corresponding selectable auxiliary function

  25. Main Sequences RWD68U

  26. Q1 X1 On Q1 Off Temp. RWD68U RWD68U - Main Sequence Heating sequence or Reverse Acting sequence • Application No.: 10 - 19

  27. Max V Y1 Q1 Voltage Output ON OFF Load Min V Q1 Y1 X1 Y Heating Q1 Temp. RWD68U Setpoint RWD68U - Main Sequence 2 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.

  28. Max V SD Q1 Y1 ON Ouptut Voltagee OFF Min V Y1 Q1 X1 SD SD Load Y 2 2 Q1 Setpoint Temp. RWD68U RWD68U - Main Sequence 2 Heating sequences or 2 Direct Acting sequences (Independent) • Application No.: 30 - 39 Output Y1 can se switched to R.A.

  29. Max V SD Q1 Y1 ON Ouptut Voltagee OFF Min V SD SD Load 2 2 Setpoint RWD68U - Main Sequence Heating + Cooling sequences or Reverse + Direct acting sequences • Application No.: 40 - 49 Y1 Q1 X1 Y Q1 Temp. RWD68U Output Y1 can be switched to R.A.

  30. Y1 Q1 X1 Y Q1 Temp. RWD68U RWD68U - Main Sequence Heating + Cooling sequences or Reverse + Direct acting sequences • Application No.: 50 - 59 • Heating Coil and Direct Chiller • Output Y1 can be switched to D.A.

  31. Q1 Y1 X1 Y Q1 Temp. RWD68U RWD68U - Main Sequence 2 Cooling sequences or 2 Direct Acting sequences (Dependent) • Application No.: 60 - 69 • Direct chiller • Output Y1 can be switched to D.A.

  32. Q1 Y1 X1 Y Q1 Temp. RWD68U RWD68U - Main Sequence 2 Cooling sequences or 2 Direct Acting sequences (Independent) • Application No.: 70 – 79 • Output Y1 can be switched to D.A.

  33. Q1 X1 On Q1 Off Temp. RWD68U RWD68U - Main Sequence Cooling sequence or Direct Acting sequence • Application No.: 80 – 89 • Output Y1 can be switched to D.A.

  34. Auxiliary Functions RWD

  35. X2 Y1 Y2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 1. Remote setpoint (#_1) • A remote setpoint transmitter QAA25U (1K Ni) or 544-764 1K Plat), connected to X2 and configured accordingly, assumes the function of the setpoint

  36. Y1 Y2 X2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 2. PI Limiter (#_2 & #_3) • 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.

  37. X1 Y1 Y2 X2 Y Temp. RWD62U RWD - Auxiliary Functions 3. Setpoint Compensation (#_4) • 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.

  38. Y1 Y2 X2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 4. Cascade Control (#_5) • 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.

  39. T D1 Y1 Y2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 5. Summer / Winter operation (#_6 & #_7) • X2M terminals (Digital/analog) • A digital switch or anlog output between terminals X2 and M can be used to implement summer/winter changeover.

  40. RWD - Auxiliary Functions 5. Summer / Winter operation (#_6 & #_7) (Cont.) • 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).

  41. Y1 Y2 X2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 6. Maximum Priority (#_8) • 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.

  42. D1 Y1 Y2 X1 Y Temp. RWD62U RWD - Auxiliary Functions 7. Day / Night Setpoint (For all RWD’s, independent of App. No.) • D1M 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.

  43. 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

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