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1. Object name Object ID Description Unit Writable RC Setp R RegioRoomTempRemote Analog value 15 Remote control of room C Yes temperature RC Setp R RegioStandbySetPDeadBand Analog value 16 Deadband in Standby mode C Yes RC_Setp_R RegioCVDeadband Analog value 17 Deadband control valve Yes RC_Setp_R RegioAIChangeOverDiffHeat Analog value 18 If lower change over temp itis Yes cooling RC_Setp_R RegioAIChangeOverDiffCool Analog value 19 If higher change over temp it is Yes heating RC R RegioRoomTempHighLimit Analog value 20 Alarm limit for high room C Yes temperature RC_Setp_R RegioRoomTempLowLimit Analog value 21 Alarm limit for low room C Yes temperature RC_Setp_R RegioFlow_0V Analog value 22 Flow at 0 V input signal at 12 Vs Yes RC_Setp_R RegioFlow_10V Analog value 23 Flow at 0 v input signal at AI2 Vs Yes RC_Setp_R RegioThermostatHystHeat Analog value 24 Hysteresis when On Off K Yes control and Heat control RC_Setp_R RegioThermostatHystCool Analog value 25 Hysteresis when On Off K Yes control and Cool control RC Setp R RegioMinHeat Analog value 26 Minimum heat output at Heat Yes control RC_Setp_R RegioMinECFanSpeed Analog value 27 Minimum speed for the EC fan Yes RC Setp R RegioMaxECFanSpeed Analog value 28 Maximum speed for EC fan 2 Yes Not used in this model Analog value 29 33 Binary inputs Ob
2. Det eio oe aa dep Seas queo doo Ro eT deed e aede aed odio du 57 CHAPTER 15 MEMORY FUNCTION ON POWER 222 7 7 62 Chapter Control modes Different control modes Split output signal The controllers can be configured for different control modes control sequences Depending on which control mode is active one both or all three of the universal outputs UO1 UO2 and 003 are used See Table 12 below for a summary Control mode UO1 UO2 Heating Heating VAV damper EC fan Heating Heating split output signal Heating Heating VAV damper EC fan Heating or Heating or cooling via change over cooling VAV damper EC fan Heating Cooling Heating Cooling VAV damper EC fan Heating Cooling with VAV control and forced supply air function Heating Cooling VAV damper EC fan Heating Cooling with VAV control Heating Cooling VAV damper EC fan Cooling Cooling VAV damper EC fan Cooling Cooling split output signal Cooling Cooling VAV damper EC fan Heating Cooling VAV only available in C3 models except C3DFOC Heating Cooling VAV damper EC fan Heating Heating or Cooling via change over only available in fan models Heating Cooling VAV damper EC fan Table 12 Control modes Not available in T models Only available in 3 models Heating In control mode Heating the unit is always a heating controller and co
3. Regio Midi manual Chapter 8 Operating modes 41 Off Standby Unoccupied Occupied Bypass Occupied Operating mode Occupied means that the room is in use and is therefore in a comfort mode The controller regulates the room temperature around a heating setpoint and a cooling setpoint FS heating setpoint 22 C cooling setpoint 24 C The setpoints can also be adjusted 3 C locally via the setpoint knob or in the display or via a central command For controllers with display the background lighting is lit dimmed and the occupancy indication is shown see the chapter Display handling The current room temperature or setpoint depending on the configuration is also shown in the display Bypass Operating mode Bypass means that the controller controls the room temperature in the same way as in operating mode Occupied The output for forced ventilation is also active After a configurable time FS 2 hours in Bypass the controller automatically returns to the preset operating mode Bypass is normally activated when the Occupancy button is pressed via an occupancy detector a central command or the level The operating mode is useful for example in conference rooms where many people are present at the same time for a certain period of time For controllers with display the background lighting is lit dimmed The occupancy indication and the symbol for forced ventilation are shown see the chapter Display handli
4. RC_Setp_R RegioOccSetPHeat R 3 68 22 C Basic Heating setpoint Regio Midi manual Chapter 17 Modbus signals 73 Signal name Type Modbus Default Description address value RC Setp R RegioOccSetPCool R 3 69 24 C Basic Cooling setpoint RC_Setp_R RegioStandbySetPDeadBand 3 70 3 C Neutral zone at Stand by Heating sp basic sp heating 3 by default Coolsp Basic sp cool 3 by default RC Setp R RegioUnOccSetPHeat R 3 71 15 C Heating setpoint at Unoccupied RC Setp R RegioUnOccSetPCool R 3 72 30 C Cooling setpoint at Unoccupied RC Setp R RegioFrostSetP R 3 13 8 C Frost protection setpoint RC Setp R RegioSetpointOffsetPos R 3 74 3 C Highest permitted setpoint adjustment uppwards RC Setp R RegioSetpointOffsetNeg R 3 75 3 C Highest permitted setpoint adjustment downwards RC Setp R RegioSetPOffset R 3 76 0 C The setpoint adjustment RC Setp R RegioPIDPGain R 3 TT 10 C P band for room controller RC_Setp_R RegioPIDITime R 3 78 300 s I time s for room controller RC Setp R RegioCVDeadband R 3 79 296 Deadband for increase decrease actuators 96 RC Setp R RegioAIChangeOverDiffHeat R 3 80 3K The difference between the temperature in the room and the media temperature for change over to cooling RC_Setp_R RegioAIChangeOverDiffCool R 3 81 4K The difference between the temperature in the room and the media temperature
5. MODUS iiss hon meets e tnbhe pmo RTU Slave BACDet siss setir obese emo Ren MS TP slave and master Modb s 5 reete peteret 8 bits 1 or 2 stop bits Odd even FS or no parity Galvanically isolated port No Memory Non volatile settings and configurations are preserved See also Chapter 15 Memory function on power failure Built in temperature sensor ss a ap NTC linearised 15 kOhm Measuring ss 0 50 C ACCOUNT AE Virk 0 5 C at 15 30 C Models with display Display eee LCD with background illumination LVD Low Voltage Directive This product conforms with the requirements of European LVD standard IEC 60 730 1 EMC emission and immunity standard This product conforms to the requirements of the EMC Directive 2004 108 EC through product standards EN 61000 6 1 and EN 61000 6 3 RoHS This product conforms to the Directive 2011 65 EU of the European Parliament and of the Council 10 Part I Introduction Regio Midi manual Inputs see Table 2 below for number and function for different models Alls PT1000 sensor 0 50 C accuracy 0 1 C lks AI PT1000 sensor 0 100 C accuracy 0 2 C Rule bava ee ete doeet ere dii ie ie ea i or AD 0 10 V ep FG A WR MR IRR PAR E MEER ER UAR or DI see DI below QI atei Rae
6. 0 NO Normally open 1 NC Normally closed Not used in this model L 1 9 13 0 RC_Setp_L RegioMinFanSpeed 1 14 0 The fan will never stop 0 Off 1 On RC_Setp_L RegioCVCoolPulsPropNC L 1 15 0 Selection of cooling output functions NO NC 0 NO Normally open 1 NC Normally closed Setp L RegioComFactoryDefault L 1 16 0 Resets communication to default values Reset returns to 0 Input register Signal name Type Modbus address Description RC Actual X RegioSoftware X 4 1 Model RC Actual X RegioVerMajor X 4 2 Version Major RC Actual X RegioVerMinor X 4 3 Version Minor RC Actual X RegioVerBranch X 4 4 Version Branch RC_Actual_X RegioRevision X 4 5 Revision Regio Midi manual Chapter 17 Modbus signals 67 Signal name Type Modbus address Description RC Actual X RegioFanS witch X 4 6 Indicates the position of the fan switch 0 switched off 1 Fan speed 1 2 Fan speed 2 3 Fan speed 3 4 Auto RC_Actual_X RegioUnitState X 4 7 Indicate current unit state 0 Off 1 Unoccupied 2 Stand by 3 Occupied 4 Bypass RC Actual X RegioControllerState 4 8 Indicate current controller state 0 Off 1 Heating 2 Cooling RC_Actual_X RegioFanSpeed X 4 9 Indicate current fan speed 0 Off 1 Fan speed 1 is on 2 Fan speed 2 is on 3 Fan speed 3 is on RC_Actual_R RegioNotUsedX X 4 10 Not used RC_Actual_R RegioRoomTe
7. Part I Introduction Regio Midi manual Part Il Installation CHAPTER 5 INSTALLATION 14 DIFFERENT VERSIONS OF TERMINALS AND eene enne nnne snerta steer senes enn 14 USING LABELS cero sero Eo eet oae ee Page 14 CONFIGURATION sisse pire pdt eene avion CR Urea mU ens 15 Setting of DIP switches only models without display 15 Models with displaY iii 16 CALIBRATION lieta bibita lieti 16 TROUBLESHOOTING ite o EE o PE A me padi ond 16 GHAPTER 61NSTALLATION ss eio rares o ere noo Pe no pasa Ee o oo ur RA oye 17 D fe ce 17 e Rr EAR alla EUR 17 Measurement and testing during installation esee 19 Wiring for basic models with analogue outputs RC C3H RC C3 RC C30 20 Wiring for model for CO control RC C3DOC enne 23 Wiring for models for CO control and fan control RC C3DFOC 25 Wiring for models for fan control RC CF RC CFO RC CDFO 0005 27 Wiring for models for three point control RC CTH RC CT RC CTO RC CDTO 30 Chapter 5 Installation preparations Different versions of terminals and pins In the summer of 2008 a new term
8. RC Actual L RegioAIChangeOverState L2 27 Indicate change over state from analogue input RC Actual L RegioChangeOverState L2 28 Indicate change over state from both digital and analogue input Not used in this model L2 29 RC Actual L RegioDigOut3 L2 30 Value of universal digital output 3 RC Actual L RegioPresence L2 31 Indicate presence RC Actual L RegioRoomTempHighTempAlarm L 2 32 Indicate high room temperature alarm RC Actual L RegioRoomTempLowTempAlarm L 2 33 Indicate low room temperature alarm RC Actual L RegioDICO2 L 2 34 Indicate high CO level 66 Part IV Signals Regio Midi manual Coil status register Modbus Default ER Signal name Type Adress Value Description RC Setp L RegioBypass L 1 1 0 Force the unit in Bypass mode Is automatically returned after Bypass time 0 No bypass 1 Bypass RC_Setp_L RegioShutDown L l 2 0 Force the unit in Shutdown state 0 No Shutdown 1 Shutdown RC Setp L RegioNotUsed L 1 Not used RC_Setp_L RegioDiNC 0 L 1 Not used RC Setp L RegioDil NC L 1 0 State NO NC digital input 1 0 NO Normally open 1 NC Normally closed RC_Setp_L RegioDi2NC L 1 6 1 State NO NC digital input 2 0 NO Normally open 1 NC Normally closed RC_Setp_L RegioUDilNC L 1 7 0 State NO NC universal input 1 0 NO Normally open 1 NC Normally closed RC_Setp_L RegioCVHeatPulsPropNC L 1 8 0 Selection of heating output function NO NC
9. 20 49 50 Max flow on Y3 output when control mode Heating Cooling VAV is selected and in heating mode Configuration of fan control 0 No control 1 Fan is controlled by heating demand 2 Fan is controlled by cooling demand 3 Fan is controlled by both heating and cooling demand 0 51 52 Start signal in for fan speed 1 on heating or cooling control Start signal in 96 for fan speed 2 5 60 53 54 Start signal in for fan spped 3 Hysteresis for start stop of fans 100 5 55 State number of speeds for the fan 1 2 or 3 56 Temperature compensation on 0 C 57 Temperature compensation on UII 0 C 58 Temperature compensation on internal room sensor 0 C 59 Filter factor for analogue temperature inputs 0 2 60 State NO NC digital input 1 0 NO Normally open 1 NC Normally closed 61 State NO NC digital input 2 0 NO Normally open 1 NC Normally closed 62 State NO NC universal input 1 0 NO Normally open 1 NC Normally closed 63 Manual Auto Heating output 0 Off 1 Manual 2 Auto Regio Midi manual Chapter 14 Display handling 59 Parameter Amber Description FS 64 Manual Auto cooling output 2 0 Off 1 Manual 2 Auto 65 Manual Auto Y3 forced ventilation output 2 0 Off 1 Manual 2 Auto For C3 models except C3DFOC manual mode means that Y3 puts out wha
10. Models for RC CTH three point control T 2 models RC CTO RC CDTO Table 1 The Midi models and their functions 8 Part I Introduction Regio Midi manual Design RC C3H RC CTH J j oH A RC CF RC CDFO RC C3DFOC RC C3 RC CT Regio Midi manual Chapter 3 Models Chapter 4 Technical data Supply voltage luni BR hebben 18 30 V AC 50 60 Hz Internal consumption 5 2 teet tee e e e S RR ree area 2 5 VA Ambient temperature siii e Db RO DURER T DERE 0 50 C Ambient humidity e nette ee reg e Deere Max 90 RH Storage temperature csi nenne ome cien Dee DD HR PEOR FUGERE ERR 20 70 C Terminal blocks eer Lift type for cable cross section 2 1 mm Protection 85 3 csse op epe eH NER UO DEP ee IP20 Material casing cemere nre i EE iaia Polycarbonate PC Colour dana OG REO ORE ROS I Polar white RAL9010 Bottom plate Dt HER ERE Light gray MI PR 110g Dimensions Models without setpoint knob essere 95 x 95 x 28 mm Models with setpoint knob nennen 95 x 95 x 31 mm Communication RS485 EXOline or Modbus with automatic detection or BACnet Communication speed 9600 19200 38400 bps EXOline Modbus and BACnet LEES or 76800 bps BACnet only Functions 8 p URDU Dee ben DI T De E DICH
11. 3 36 2 F 2 Fan speed 2 only used for F and T models models 7 Heat valve increase 7 T models RC 5 X RegioDo3 X 3 37 3 F 3 Fan speed 3 only used for F and T models models 8 Heat valve decrease 8 models RC Setp X RegioDo4 X 3 38 4 F 4 Forced ventilation only used for F and T models models 9 Cool valve increase 9 T models RC 5 X RegioDo5 X 3 39 10 10 Cool valve decrease only used for T models models Not used in this model X 3 40 41 Regio Midi manual Chapter 17 Modbus signals 71 Signal name Type Modbus address Default value Description RC Setp X RegioUol Not T models 42 3 State connected function on UOI 0 None 1 Thermal actuator heat 2 None 3 Heating actuator 0 10 V 4 None 5 On off actuator heat 6 None RC Setp X RegioUo2 Not T models 43 State connected function on UO2 0 1 2 Thermal actuator Cool 3 None 4 Cooling actuator 0 10 V 5 None 6 On off actuator cool RC Setp X RegioModbusSlaveAddr 44 Factory set Controller Modbus address RC Setp X RegioModbusParity 45 2 Parity of Modbus communication 0 No parity 1 Odd parity 2 Even parity RC Setp X RegioModbusCharTimeout RC Setp X RegioModbusAnswerDelay 46 47 3 ms 5 ms Modbus timeout for character t1 5 in ms Should be 1 5 times a character i e at least 2
12. Current fan speed 1 0ff No input 3 2 Fan speed 1 3 Fan speed 2 4 Fan speed 3 Multistate values Object name Object ID Description Values Writable Setp X RegioHeatOutputSelect Multistate Manual Auto heat output 17Off Yes value 0 2 Manual output 3 Automatic output RC Setp X RegioCoolOutputSelect Multistate Manual Auto cool output Yes value 1 2 Manual output 3 Automatic output RC Setp X RegioFanSelect Multistate Fan mode select 1 Off Yes value 2 2 Manual speed 1 3 Manual speed 2 4 Manual speed 3 5 Auto 6 Auto 2 7 1 RC Setp X RegioForcedVentSelect Multistate Manual Auto forced 1 0ff Yes value 3 ventilation 2 Manual On 3 Auto RC_Setp_X RegioChangeOverSelect Multistate Manual Auto change over 1 Heating Yes value 4 2 Cooling 3 Auto RC_Setp_X RegioRemoteState Multistate Remote control unit state Off Yes value 5 2 Unoccupied 3 Stand by 4 Occupied 6 No remote control Device The device object contains two writable properties Description and Location Description can be 17 characters long and Location can be 33 characters long if using single byte character encoding 80 Part IV Signals Regio Midi manual index A About the manual 5 More information 5 Terms 5 Activation of the different operating modes 43 Actuators 48 Analogue actuators 48 Exercise 49 On Off spring return actuators 48 Thermal actuators 48 Three point actuators 48 Analogue act
13. Occupied 120 min by default Timer Regio Midi manual Chapter 7 Control modes 39 0 10 V input Flow input Presence detection depending on the CO concentration This function is not active when the controller is configured for Heating Cooling with VAV control When the CO concentration exceeds the set value for activation of presence UO3 will switch to forced ventilation if the presence operating mode is set to Bypass It will stay there until the concentration drops below the set value FS 800ppm minus the hysteresis FS 160ppm When the concentration drops below this value the controller will remain in presence mode for the duration of the configured occupancy off delay FS 10min Presence activated if CO2 gt Activate occupancy SP Presence deactivated if CO2 lt Activate occupancy SP Hysteresis CO level 160ppm by default Hysteresis 640ppm 800ppm by default Activate occupancy setpoint Minimum limit for the heating output In some applications it is desirable to set a minimum limit for the heating output in order to prevent for instance downdraughts under windows In general this function works in a way similar to the minimum limit for the cooling output However there is a difference between the minimum limit for the heating and cooling output as the minimum limit for the latter still remains active after the controller enters heating mode In addition the minimum limitation for
14. Regin s condensation detector KG A 1 and functions internally as a digital input i e condensation or no condensation When the condensation detector is activated the cooling control is blocked and the controller is set in neutral position When condensation ceases the controller will start controlling from the neutral position Regio Midi manual Chapter 12 Special functions 53 Window contact When window contact has been configured the controller is set to normal mode on closed window On open window the controller is set to off mode the heating and cooling outputs are set to 0 V and the frost protection function is activated Frost protection Regio has built in frost protection which is activated when the controller is not in use The frost protection prevents the temperature from dropping below 8 C Return to normal fan speed and control occurs automatically when the room temperature exceeds 8 C High low room temperature alarm High low temperature alarm is a function to indicate if the room temperature is too high or too low The high room temperature alarm will trigger when the room temperature exceeds the configured high temp limit FS 40 C The low room temperature alarm will trigger when the room temperature falls below the configured low temp limit FS 15 C The alarms are implemented as points that trigger when the temperature either exceeds or falls below the limits and return as soon as the temperatu
15. anni RU Ue Regin s condensation detector KG A DI cuisine Sia Noi Closing potential free contact connected to C in one end Outputs see Table 2 below for number and function for different models Do 24 V AC max 0 5 A UO eae eR DO 24 V AC max 2 0 A or AO 0 10 V DC max 5 mA C power output for DI only 24 V DC max 10mA short circuit protected Regio Midi manual Chapter 4 Technical data 11 Terminals 12 13 14 22 23 24 30 31 32 33 Basic models with 3 Analogue output RC C3H RC C3 RC C30 UO3 UOI UO2 AII Ul DD Forced vent Heating Cooling Ext room Change Occupancy CI Window alt actuator actuator sensor over sensor contact EC fan alt alt alt alt alt Cooling Heating Window Condensation follow actuator actuator contact detector Heat Cool in seq Model with input for CO control RC C3DOC UO3 UO1 UO2 AII AI DII DD Forced vent Heating Cooling Ext room CO Occupancy CI Window alt actuator actuator sensor alt sensor contact EC fan alt alt alt Flow alt alt alt Cooling Heating Change over alt Window Condensation follow actuator actuator 0 10 V contact detector Heat Cool alt alt in seq Change over Change over Model with input for CO control and Fan control RC C3DFOC DO2 DO3 UO3 UO1 UO2 AII AD DD EC fan Heating Cooling Ext room CO Occupancy CI Window actuator actuator s
16. by default Cooling setpoint Basic sp cooling 3 by default 4 Heating setpoint at Unoccupied 15 C 5 Cooling setpoint at Unoccupied 30 C 6 Frost protection setpoint 8 C 7 P band for room controller 10 C 8 I time for room controller 300 s 9 The difference between the temperature in the room and the media 3K temperature for change over to cooling 10 The difference between the temperature in the room and the media 4K temperature for change over to heating 11 Control mode 3 0 Heating 1 Heating Heating 2 Heating or Cooling via change over 3 Heating Cooling 4 Heating Cooling with VAV control and forced ventilation 5 Heating Cooling with VAV control 6 Cooling 7 Cooling Cooling 8 Heating Cooling VAV C3 models except RC C3DFOC 9 Heating Heating or Cooling via change over only available on models with fan control 12 Time in Bypass mode 120 min 13 Disconnect timer with Occupancy Unoccupancy 10 min 14 Switch on delay for Occupancy 0 min 15 State connected sensor on 0 0 Internal sensor External room sensor 2 Change over sensor RC C3DOC C3DFOC Regio Midi manual Chapter 14 Display handling 57 Parameter A mbar Description FS 16 State connected sensor on UII All models except RC C3DOC C3DFOC 2 0 None 1 Change over digital 2 Change over analogue 17 State connected sensor on DII 1 1 Window contact 2 No function 3 Presence detector 4 Change over sensor RC C3DOC
17. control setpoint and the adjustment is shown in the display Example The control setpoint is 22 C and the added adjustment is 1 5 C This means that the value 23 5 C will be shown in the display HEAT or COOL will flash depending on which of the setpoint values is the control setpoint when you enter the setpoint menu i e depending on which setpoint you are changing The adjustment is added to both the heating and cooling setpoints The sum of the heating setpoint and the adjustment is shown in the display The adjustment is added to both the heating and cooling setpoints The sum of the cooling setpoint and the adjustment is shown in the display The adjustment is added to both the heating and cooling setpoints Regio Midi manual Chapter 9 Setpoint calculation 47 Chapter 10 Actuators Regio can be used with four types of actuators e Analogue 0 10 V actuators e Thermal actuators e 3 point actuators Increase Decrease actuators e On Off spring return actuators On units without display it is possible to select if thermal or analogue actuators will be used via the DIP switches For other actuators and Regio models the actuator type is set via Regio tool or for controllers with a display in the parameter menu Analogue actuators The following output signals can be set for analogue actuators e 0 10 V FS e 2 10V e 10 2V e 10 0V Thermal actuators When thermal actuator control has been select
18. demand is not active The basic flow can also be set separately Output signal Heating output 27 Cooling output 100 i Pod Increasing airflow on heating demand Max airflow on Basic airflow heating demand ii settable settable E 0 Fi Heating SP SP Cooling Temp C heating cooling Cooling In control mode Cooling the unit is always a cooling controller and controls according to the basic cooling setpoint plus the setpoint adjustment Cooling Cooling In control mode Cooling Cooling the controller always functions as a cooling controller and controls according to the basic cooling setpoint plus the setpoint adjustment The control signal is divided between the two outputs with a deadband in between The first output UO1 works between 0 48 of the control signal When the control signal reaches 52 002 starts to operate and will be 10 V when the control signal is 100 See the figure below Output signal 100 0 Fd Cooling 1 48 52 Cooling 2 100 Cooling demand Heating Cooling VAV This control mode offers the possibility to control three analogue outputs heating cooling and VAV When the controller is in cooling mode the control signal is split between cooling and this control mode is only available in C3 models except RC C3DFOC see figure below Regio Midi manual Chapter 7 Control modes 35 20 by default min flow at cool output for VAV control Controller outpu
19. for DO Internally connected to terminal 11 GO 22 DO4 For a three point actuator cooling increase 24 V AC output max 0 5 A The actuator s terminal for opening signal is connected to terminal 22 The common pole on the actuator is connected to terminal 20 GDO 23 DO5 For a three point actuator cooling decrease 24 V AC output max 0 5 A The actuator s terminal for closing signal is connected to terminal 23 24 No function 30 For external room sensor 1000 Measuring range 0 509 sensor is connected between terminals 30 and 41 AGnd See Table 11 SW7 30 Part Installation Regio Midi manual Terminal Designation Operation 31 UII For switching between heating and cooling on a two pipe system change over A PT1000 sensor is connected between terminals 31 and 41 AGnd Measuring range 0 100 C alternatively For a potential free contact A potential free contact is connected between terminals 31 and 40 32 DII Occupancy detector A potential free contact is connected between terminals 32 and 40 C Closed contact corresponds to occupancy alternatively Window contact DI A potential free contact is connected between terminals 32 and 40 C Closed contact indicates closed window See also the section Occupancy detector in the chapter Operating modes 33 DD CI Regin s condensation detector KG A FS The sensor i
20. free contact is connected between terminals 33 and 40 C Closed contact indicates closed window alternatively Change over 33 DI2 CI Regin s condensation detector KG A 1 FS The sensor is connected between terminals 33 and 41 AGnd alternatively Window contact DI A potential free contact is connected between terminals 33 and 40 C Closed contact indicates closed window alternatively Change over 40 C 24 V DC out common for DI and UI with digital function 41 AGnd Analogue ground reference for AI and UI with analogue function 42 A RS485 communication A 43 B RS485 communication B Table 6 connection terminals for model for control 24 Part II Installation Regio Midi manual Wiring for models for control and fan control RC C3DFOC 24VAC Power supply 1 or 3 phase 30 AI1 G 31 9 2 GO 32 011 33 DI2 Cl 24 V AC Power supply 1 or 3 phase 424A UO3 434B UO1 UO2 Figure 11 Connection diagrams for models for CO control and fan control Terminal Designation Operation 10 G Supply voltage 24 V AC 11 GO Supply voltage 0 V 12 14 No function 20 GDO 24 V AC out common for DO Internally connected to terminal 10 G 21 GO 0 V common for UO Internally connected to terminal 11 GO 22 Control fan 0 10 V DC 23 UOI Control output heating FS cooling or heating or cool
21. has expired The Presence delay can be set to a value between 0 and 60 minutes FS 0 min In Bypass on presence there is a switch off timer which means that if there is no occupancy indication during this time FS 10 min the controller will return to the preset operating mode 44 Part Configuration Regio Midi manual The occupancy button Occupancy detector Central command Central control Central control of the operating mode is also possible By changing the variable RegioRemoteState you can control the operating mode centrally according to the following table there is a variable list for central control in Part IV of this manual RegioRemoteState Description 0 Central operating mode Off 1 Central operating mode Unoccupied 2 Central operating mode Standby 3 Central operating mode Occupied 4 Not used 5 FS No central control Table 13 The variable RegioRemoteState When using central control i e RegioRemoteState lt gt 5 and you press the Occupancy button the controller will change to Bypass and stay in this mode for as long time as you have configured If you press the Occupancy button again when the controller is in Bypass the controller will change to Stand by regardless of what has been set in the central control RegioRemoteState When the controller is in Bypass and the Bypass time has run out the controller will change to the operating mode given by Re
22. the heating output functions in all control modes Output 100 Cooling Heating Example 20 min heat output 0 Room temp 22 C as default 24 C as default Heating setpoint Cooling setpoint Features for RC C3DOC C3DFOC The 0 10 V input used as a CO input for RC C3DOC C3DFOC supports a general 0 10 V signal This input is not connected to any function but only acts as a read out for the signal To configure this option parameter 81 is set to option 7 0 10 V AI2 may be configured as a flow calculation input A flow corresponding to 0 V and one corresponding to 10 V is set and the flow is then calculated linearly between these two end points To configure the flow calculation Parameter 81 has the additional option 8 Flow calculation The calculated flow value may be shown in the display by setting parameter 42 to option 9 40 Part HI Configuration Regio Midi manual Chapter 8 Operating modes Different operating modes The Regio controllers have the following operating modes e 0 e Unoccupied e 2 Stand by 3 Occupied FS 4 Bypass Off Operating mode Off means that the controller is not heating or cooling and the fans are stopped However the temperature must not drop below the set minimum temperature FS 8 C If it does the controller will start heating and if a fan is used start the fan whether it has been manually stopped or not For controllers
23. 015 12 14 GDO 20 pelos RDABS 24 UO1 23 UO2 24 Figure 12 Connection diagrams for models for fan control Terminal Designation Operation 10 G Supply voltage 24 V AC 11 GO Supply voltage 0 V 12 For fan control low speed 24 AC output 0 5 A 24 AC relay is connected between terminal 12 and terminal 20 GDO 13 DO2 For fan control medium speed 24 V AC output max 0 5 A A 24 V AC relay is connected between terminal 13 and terminal 20 GDO 14 DO3 For fan control high speed 24 V AC output max 0 5 A A 24 V AC relay is connected between terminal 14 and terminal 20 GDO 20 GDO 24 V AC out common for DO Internally connected to terminal 10 G 21 GO 0 V common for UO Internally connected to terminal 11 GO 22 DO4 For forced ventilation 24 V AC output max 0 5 A A 24 V AC actuator is connected between terminal 22 and terminal 20 GDO Regio Midi manual Chapter 6 Installation 27 Terminal Designation Operation 23 001 Control of heating FS cooling or heating cooling via change over For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 23 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A T
24. 254 slave address 116 Low 4 figures of the BACnet device ID 0 9999 Factory set 117 High 3 figures of the device ID Factory set 118 BACnet MS TP Max master 127 119 COMbus speed 0 0 9600 1 19200 2 38400 3 76800 only BACnet 120 COMbus reset 0 deactivated When activated 1 it resets the communication to default settings 121 Min limit for EC fan 10 122 Max limit for EC fan 100 125 Model Factory set read only 126 Version Major Factory set read only 127 Version Minor Factory set read only 128 Version Branch Factory set read only 129 Revision Factory set read only Table 14 Parameter list Regio Midi manual Chapter 14 Display handling 61 Chapter 15 Memory function on power failure On power failure settings and configurations are preserved in the controller in a so called non volatile memory EEPROM All changes made to the settings and configuration is saved in the memory which means that the latest values are always stored Measured values as well as other variables that change often are not stored Values can be saved up to approximately 100 000 times in the non volatile memory Therefore changed values should not systematically and very often be sent to the controller via network communication Normal changes may still be sent via the network for example if the operating mode is changed a few times per day Example Activation of Bypass s not stored in the memory Instead the c
25. 4 45 Occupied 42 Occupied Bypass 46 Off 41 46 On Off spring return actuators 48 Operating modes 41 Activation of the different operating modes 43 Different operating modes 41 P Parameter menu 57 Parameters 57 Preset operating mode 43 R Register Holding 75 S Setpoint display of setpoint at setpoint displacement 47 Setpoint calculation 46 Basic setpoint 46 Calculation of the active setpoint 46 Setpoint displacement 46 Setpoint displacement 46 Special functions 53 Special input CI 53 Split output signal 35 Stand by 41 46 SW1 7 15 T Technical data 10 Terms 5 Thermal actuators 48 Three point actuators 48 U Unoccupied 41 46 VW Wiring 17 Wiring for basic models with 3 analogue outputs 20 Wiring for model for CO control 23 Wiring for models for CO control and fan control 25 Wiring for models for fan control 27 Wiring for models for three point control 30 REGIN THE CHALLENGER IN BUILDING AUTOMATION AB Regin REGIN Box 116 S 428 22 K llered Phone 46 31 720 02 00 info regin se Sweden Fax 46 31 720 02 50 www regin se THE CHALLENGER IN BUILDING AUTOMATION
26. 42 A RS485 communication A 43 B RS485 communication B Table 4 connection terminals for basic models with 3 analogue outputs DIP switches only models without display The ON position is marked on the DIP switch ON OFF Comment SW4 DI window contact CI Regin s condensation Function terminal 33 Closed contact indicates detector KG A FS DD CI closed window SWS Digital output for 24 V Analogue output for Function terminal 23 AC thermal actuator 0 10 V DC valve UOI actuator FS SW6 Digital output for 24 V Analogue output for Function terminal 24 AC thermal actuator 0 10 V DC valve 002 actuator FS SW7 External PT1000 sensor Internal NTC sensor Temperature sensor FS SW8 NO NC FS Function terminal 23 UOI Choosing NC FS gives direct action on output UOI i e increasing signal longer pulses on increasing control output This setting is used when UOI is connected to a thermal actuator of type Regin RTAM 24 NC In the event of a power cut the valve will close Choosing NO gives reverse action on output UOI i e decreasing signal shorter pulses on increasing control output This setting is used when UOI is connected to a thermal actuator of type Regin RTAOM 24 NO In the event of a power cut the valve will open Table 5 DIP switches SW4 SW8 22 Part II Installation Regio Midi manual Wiring for model for control RC
27. 47 LUO Figure 8 Bottom plate with terminals For detailed information on connection of a communication cable to the Midi controllers see the manual Regio in EXO Projects 18 Part II Installation Regio Midi manual Measurement and testing during installation 4 2 ote pins lt AM Here U LP P In order to make measurements and test the inputs outputs of a Regio room controller during installation Regin s RC TEST service adapter may be used Simply align the pins at the bottom of the RC TEST with the terminals contained in the controller s socket and then plug the Regio electronics cassette into the terminals at the top of the device Testing takes place via a standard multimeter Regio Midi manual Chapter 6 Installation 19 Wiring for basic models with 3 analogue outputs RC C3H RC C3 RC C30 30 G 10 31 01 GO 11 32 DI1 312 33 DI2 CI 13 914 QN 40 C 600420 AGNA Go 421 42 4A UO3 422 43 B UO1 423 UO2 24 C 30 10 31 UI1 GO 11 32 011 12 33 DI2 CI 913 14 A hg 40 C L GDO 20 41 AGnd G0 321 42 A 22 43 B UO1 23 0029 24 Figure 9 Connection diagrams for basic models with 3 analogue outputs Designation Operation 10 G Supply voltage 24 V AC 11 GO Supply voltage 0 V 12 14 No function 20
28. 83 100 Max limit for EC fan RC C3DOC RC C3DFOC Regio Midi manual Chapter 17 Modbus signals 75 Chapter 18 BACnet signal types BACnet MS TP mode Object Type Out of service Commandable In order to communicate via BACnet the protocol has to be changed either via Regio tool or via the parameter list in the display Once the protocol has been set to BACnet it can only be switched back to EX Oline and Modbus via the display Both MS TP master and slave are supported The mode is controlled by setting the MAC address If lt 127 master mode is selected A MAC address of gt 127 enables slave The BACnet types of the signals types in the list below The property out of service is not writable for all Object Types The value objects are not commandable i e does not use a priority array Analogue inputs Analogue values Binary inputs Binary values Loop Multistate inputs Multistate values Device 76 Part IV Signals Regio Midi manual Chapter 19 BACnet signals Analogue inputs Object name Object ID Description Unit Writable RC Actual R RegioRoomTemp Analog input 0 Room temperature C No RC Actual R RegioAIChangeOver Analog input 1 Change over temperature C No RC Actual R RegioAnaInl Analog input 2 Value of analogue input 1 C No RC Actual R RegioU Analn1 Analog i
29. ARTI INTRODUCTION m 4 CHAPTER 1 ABOUT THE MANUAL 2 2 EE a Phat E a a 5 CHAPTER 2 INTRODUCTION TO REGIO rire 6 MODELS e ERE 8 CHAPTER 4 TECHNICAL 2 10 25220 0 0 13 CHAPTER 5 INSTALLATION PREPARATIONS CHAPTER 6 INSTALEATION tov nr AD ei ire liete PART IIl CONFIGURATION 5 5 55 co sonia o eoe ao cea sa aene e oco eaa sara e Eno ao eR aos epa 32 CHAPTER 7 CONTROL MODES CHAPTER 8 OPERATING MODES CHAPTER 9 SETPOINT CALCULATION 46 GHAPTERLO ACTUATORS tron occ i deber cec ea ia it 48 GHAPTER 11 EAN GONTROL E PEE Pere 50 CHAPTER 12 SPECIAL FUNCTIONS ica DECRE PR 53 CHAPTER 13 INDICATIONS hai Eo ev lo Usi viv ede Gd 55 CHAPTER 14 DISPLAY HANDLING 56 CHAPTER 15 MEMORY FUNCTION ON POWER FAILURE e cessere enne nnne nnn nnne 62 PART IV SIGNALS 5 eere ce ebore o sans aldna salinn 63 CHAPTER 16 MODBUS SIGNAL TYPES CHAPTER 17 MODBUS SIGNALS 2a aaa nai CHAPTER 18 BACNET SIGNAL TYPES erre CHAPTER 19 BACNET SIGNALS cccccsccsssssecccectccsessscesecuccuesssecsecuscuseseseesseuscessssseesseescessssse
30. C X AlaModStat X 3 1 Not used RC_SetP_X RegioFreeCoolAvailable X 3 2 0 Sequence order for Y2 and Y3 0 Y2 activates before 1 Y3 activates before Y2 RC_Setp_X RegioHeatOutputSelect X 3 3 2 Manual Auto Heating output 0 Off 1 Manual 2 Auto RC_Setp_X RegioCoolOutputSelect X 3 4 2 Manual Auto Cooling output 0 1 Manual 2 Auto RC Setp X RegioFanSelect X 3 5 4 Select fan mode 0 Off 1 Manual speed 1 2 Manual speed 2 3 Manual speed 3 4 Auto RC_Setp_X RegioFanControlMode X 3 6 3 Configuration of fan control 0 No control 1 Fan is controlled by heating demand 2 Fan is controlled by cooling demand 3 Fan is controlled by both heating and cooling demand RC Setp X RegioFanSpeedl Start X 3 7 5 96 Start signal in for fan speed 1 on heating or cooling control RC Setp X RegioFanSpeed2Start X 3 8 60 Start signal in for fan speed 2 RC Setp X RegioFanSpeed3Start X 3 9 100 Start signal in for fan speed 3 RC Setp X RegioFanSpeedHyst X 3 10 5 Hysteresis for start stop of fans RC_Setp_X RegioFanSpeedMax X 3 11 3 State number of speeds for the fan RC Setp X RegioForcedVentSelec X 3 12 2 Manual Auto Y3 forced ventilation output 0 Off 1 Manual 2 Auto RC_Setp_X RegioChangeOverSelect 3 13 2 Manual Auto control of change over mode 0 Heat control 1 Cool control 2 Automatic change over depending on analogue sensor input or digital input RC_Setp_X RegioRemot
31. C3DFOC 18 State connected sensor on DD 2 1 Window contact 2 Condensation detection 3 No function 4 Change over sensor RC C3DOC C3DFOC 20 State connected function on UOI 3 0 None 1 Thermal actuator heat 2 None 3 Heating actuator 0 10 V 4 None 5 On off actuator heat 6 None 21 State connected function on UO2 4 0 None 1 None 2 Thermal actuator cool 3 None 4 Cooling actuator 0 10 V 5 None 6 On off actuator cool 22 State connected function on UO3 1 0 None 1 Forced vent digital 2 Analogue output OEM 3 None 4 Ordinary analogue output 5 None 6 Control of EC fan RC C3 models 24 Y3 output in manual mode only if Y3 is configured as an analogue output 0 not available for RC C3DFOC 28 State output signal range for Y3 actuators 0 0 0 10 V 1 2 10 V 2 10 2 V 3 10 0 V 29 State output signal range for heating actuators 0 0 0 10 V 1 2 10 V 2 10 2 V 3 10 0 V 30 State output signal range for cooling actuators 0 0 0 10 V 1 2 10 V 2 10 2 V 3 10 0 V 31 Period time for heating actuators with thermal actuator 60 5 32 Period time for cooling actuators with thermal actuator 60 s 33 Run time for heating actuators with increase decrease actuators 120s 34 Run time for cooling actuators with increase decrease actuators 120s 35 Neutral zone for increase decrease actuators 2 36 Time in hours between exercise of
32. C3DOC p 30 31 7 2 32 7 1 hv 40 41 AGnd GO 221 42 4 43 9B 33 7 DI2 CI G0 11 003 22 5 23 2 5 24 Figure 10 Connection diagrams for model for control Terminal Designation Operation 10 G Supply voltage 24 V AC 11 GO Supply voltage 0 V 12 14 No function 20 GDO 24 V AC out common for DO Internally connected to terminal 10 G 21 GO 0 V common for UO Internally connected to terminal 11 GO 22 UO3 Output for VAV or EC fan For forced ventilation 24 V AC output max 2 0 A 24 V actuator is connected between terminal 22 and terminal 20 GDO alternatively For 0 10 V DC damper control EC fan The damper actuator EC fan 0 10 V control signal terminal is connected to terminal 22 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator Regio Midi manual Chapter 6 Installation 23 Terminal Designation Operation 23 001 Control output heating FS cooling or heating cooling via change over For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 23 and its supply terminals to terminals 10 and 11 Make sure that the reference pole G0 is connected to the correct terminal on the actuator alternatively For a 24 V AC therm
33. GDO 24 V AC out common for DO Internally connected to terminal 10 G 21 GO 0 V common for UO Internally connected to terminal 11 GO 22 Output for VAV or EC fan For forced ventilation 24 V AC output max 2 0 A 24 V actuator is connected between terminal 22 and terminal 20 GDO alternatively For 0 10 V DC damper control EC fan The damper actuator EC fan 0 10 V control signal terminal is connected to terminal 22 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator 20 Part Installation Regio Midi manual Terminal Designation Operation 23 UOI Control of heating FS cooling or heating cooling via change over For 0 10 V DC valve actuators max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 23 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A The thermal actuator is connected between terminals 23 and 20 GDO Using DIP switch SW8 the output can be set to suit actuator type NO or NC N B when UOI has been set for use with thermal actuators for 24 V AC digital output function the controller utilizes time proportional control to give a smooth control of the connected actuator The output signal for UOI
34. Regio Midi manual THE CHALLENGER IN BUILDING AUTOMATION DISCLAIMER The information in this manual has been carefully checked and is believed to be correct Regin however makes no warranties as regards the contents of this manual and users are requested to report errors discrepancies or ambiguities to Regin so that corrections may be made in future editions The information in this document is subject to change without prior notification The software described in this document is supplied under license by Regin and may be used or copied only in accordance with the terms of the license No part of this document may be reproduced or transmitted in any form in any fashion electronically or mechanically without the express written permission of Regin COPYRIGHT AB Regin All rights reserved TRADEMARKS EXOdesigner EX Oreal 4 EXOline EXO4 Web Server Regio and Regio tool are registered trademarks of AB Regin Windows Windows 2000 Windows XP Windows Vista Windows 7 Windows 8 and Windows Server 2003 are registered trademarks of Microsoft Corporation Some product names mentioned in this document are used for identification purposes only and may be the registered trademarks of their respective companies June 2013 Document revision 1 4 The functions described in this manual are handled using Regio tool version 1 4 1 00 The controllers are marked with revision number R02 Table of contents P
35. The thermal actuator is connected between terminals 24 and 20 GDO For choice of output function analogue or digital see Table 9 SW6 On models with display go into the parameter menu and change parameter 21 to thermal actuator alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 24 and 20 This can be configured either through the display or through Regio tool 30 For external room sensor 1000 Measuring range 0 509 sensor is connected between terminals 30 and 41 AGnd See Table 9 SW7 31 UII For switching between heating and cooling on a two pipe system change over A PT1000 sensor is connected between terminals 31 and 41 AGnd Measuring range 0 100 C alternatively For a potential free contact A potential free contact is connected between terminals 31 and 40 C 32 Occupancy detector potential free contact is connected between terminals 32 and 40 C Closed contact corresponds to occupancy alternatively Window contact DI A potential free contact is connected between terminals 32 and 40 C Closed contact indicates closed window See also the section Occupancy detector in the chapter Operating modes 33 DI2 CI Regin s condensation detector KG A 1 FS The sensor is connected between terminals 33 and 41 AGnd alternatively Window contact DI A potential free contact is connected between
36. V This means that to set a minimum limitation of 20 the min limitation in the Regio will have to be set to 36 Y2 output Cooling valve Room temp AO Cooling demand setpoint CO2 reduction demand Pl control Maximum Cooling demand CO2 reduction demand 2 reduction demand 100 20 by default min flow at cool output e for control CO2 level 600ppm by default 800ppm by default CO2 level to start CO2 level when fully open damper opened damper 2 Forced ventilation depending on the heating cooling output At 100 heating or cooling output forced ventilation can be activated The function is intended to be used when the heater or cooler is located in the ventilation duct and the system is struggling to reach the setpoint When the cooling or heating output reaches 100 the controller will switch to control mode Bypass The controller will remain in forced ventilation throughout the set Bypass time FS 2h Three different alternatives can be selected for setting the function forced ventilation e Not active FS e Forced ventilation at 100 heating or cooling output e Forced ventilation at 100 cooling output Forced ventilation activated when Cooling output reaches 100 96 Heating Cooling output Y 1 Y2 Preset operating mode P45 Bypass Off Unoccupied Standby
37. al actuator max 2 0 A The thermal actuator is connected between terminals 23 and 20 GDO alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 23 and 20 This can be configured either through the display or through Regio tool The output signal for be set to NC normally closed or NO normally open 24 UO2 Control output heating or cooling FS For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 24 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A The thermal actuator is connected between terminals 24 and 20 GDO alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 24 and 20 This can be configured either through the display or through Regio tool 30 For external room sensor 1000 Measuring range 0 509 sensor is connected between terminals 30 and 41 AGnd 31 AD For a 0 10 V CO sensor alternatively Flow input alternatively 0 10 V input 32 Occupancy detector potential free contact is connected between terminals 32 and 40 C Closed contact corresponds to occupancy alternatively Window contact DI A potential
38. ally better to do this before sending the cassette to the installation site The bottom plates with location and wiring information can be sent separately to the installation site for electric installation For more information about configuration see Part III Configuration below Setting of DIP switches only models without display SWI1 2 Models without display have eight DIP switches SW1 8 for setting basic functions They are found on the back of the electronics cassette Figure 4 DIP switches Basic setpoint C SW1 SW2 20 OFF OFF 22 ES OFF ON 24 ON OFF 26 ON ON Table 3 Setting of basic heating setpoint with DIP switch SWI SW2 See also the chapter Setpoint calculation for setting of SW1 2 Regio Midi manual Chapter 5 Installation preparations 15 SW3 Occupied is the preset operating mode SW3 OFF FS If you want the preset operating mode to be Stand by set SW3 in mode ON For more information see the chapter Operating modes Sw4 8 Follow the tables in the chapter Installation for setting SW4 8 Models with display There are no DIP switches in models with display For these models the corresponding settings are made in the parameter menu in the display or using Regio tool see the chapter Display handling Calibration Calibration of a measured room temperature should be done under stable conditions Troubleshooting The Manual Auto function in Regio to
39. an be configured either through the display or through Regio tool 30 31 For an external room sensor PT1000 Measuring range 0 50 C The sensor is connected between terminals 30 and 41 AGnd See Table 5 SW7 For switching between heating and cooling on a two pipe system change over A PT1000 sensor is connected between terminals 31 and 41 AGnd Measuring range 0 100 C alternatively For a potential free contact A potential free contact is connected between terminals 31 and 40 C 32 DII Occupancy detector A potential free contact is connected between terminals 32 and 40 C Closed contact corresponds to occupancy alternatively Window contact DI A potential free contact is connected between terminals 33 and 40 C Closed contact indicates closed window See also the section Occupancy detector in the chapter Operating modes 33 DD CI Regin s condensation detector KG A FS The sensor is connected between terminals 33 and 41 AGnd alternatively Window contact DI A potential free contact is connected between terminals 33 and 40 4C Closed contact indicates closed window See Table 5 SW4 Regio Midi manual Chapter 6 Installation 21 Terminal Designation Operation 40 C 24 V DC out common for DI and UI with digital function 41 AGnd Analogue ground reference for AI and UI with analogue function
40. are 12 different Midi room controllers They can be divided according to type of control in basic models models for fan control and models for three point control Basic models control analogue actuators thermal actuators or On Off actuators with spring return Like basic models models for fan control F models control analogue thermal and spring return actuators With the exception of RC C3DFOC they also have a button fan switch and three digital outputs for control of a three speed fan fan coil etc RC C3DFOC has EC fan control on analogue output UO3 Models for three point control T models have four digital outputs for control of two three point actuators 3 models The 3 models have an additional output for control of either an On Off damper analogue forced ventilation damper an analogue EC fan or an analogue third damper AE Os 8 2 Models 59 55 gt 5 oct o x o So o o 2 o9 o gt 6 S E s 2 c os amp gt 8 o 59 o c o g 5 a tA 2 S o 5 63 a o lt o On Basic models RC C3H e e without fan control three 2 point control RC C30 3 models RC C3DOC bd Models for fan RC CF control F models 2 2 RC CDFO RC C3DFOC e
41. art signal fan speed 1 Y3 60 by default Start signal fan speed 2 Y3 100 by default Start signal fan speed 3 AUTO No of fan speeds 3 No of fan speeds 2 No of fan speeds 1 CIIL MAN GMIII MAN UOC 52 Part HI Configuration Regio Midi manual Chapter 12 Special functions Change over function Control modes Change over digital Change over analogue Change over is a function for installations with 2 pipe systems It makes it possible to use the same pipe for both heating and cooling depending on requirements during for example the summer cooling output and the winter heating output To activate the change over function control modes Heating or Cooling via change over or Heating Heating or Cooling via change over needs to be configured All controllers in the Regio series have an input for change over To be able to configure the control mode Heating Heating or Cooling via change over it is necessary to have a Regio Midi controller with fan function The input can be either of the type analogue PT1000 sensor or a closing contact connected to a digital input FS PT1000 input When using a digital signal input potential free contact closing the contact will activate the change over function and set the heating output UOI alt DO2 DO3 T models to cooling On open contact the change over function will set the heating output to heating In this mode the c
42. ation loop the A terminal terminal 42 should only be connected to another A terminal and the B terminal terminal 43 to another B terminal Otherwise the communication will not work Regio Midi manual Chapter 6 Installation 17 The communication cable must be a screened twisted pair cable The shield must be connected to GO on one and only one Midi controller in each separate power supply loop with 24 V AC If the length of the loop exceeds 300 m a repeater is required See figure 7 2 sii d RUN x x m x 230VAC 230VAC 230VAC o 230VAC 2AVAC 24 24VDC N 24 Max 300m z TAY P E eS Xia 8s Ja ar TI T Isolated repeater e g 7510 AB GGO AB GGO AB GGO AB GGO AB GGO AB Midi Midi Midi Midi Midi Midi 1 0 1 0 1 0 1 0 1 0 1 0 Figure 7 The figure below shows the location of the terminals The connection diagrams and tables on the following pages show the wiring for basic models the model for control models for fan control and models for three point control
43. can be set to NC normally closed or NO normally open by changing the position of DIP switch SW8 for models without display and by changing parameter 73 for models with display This setting refers to which type of actuator NC or NO it is intended for For choice of output function analogue or digital see Table 5 SW5 On models with display go into the parameter menu and change parameter 20 to thermal actuator alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 23 and 20 This can be configured either through the display or through Regio tool The output signal for UOI can be set to NC normally closed or NO normally open 24 2 Control output heating or cooling FS For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 24 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A The thermal actuator is connected between terminals 24 and 20 GDO For choice of output function analogue or digital see Table 5 SW6 On models with display go into the parameter menu and change parameter 21 to thermal actuator alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 24 and 20 This c
44. decreasing signal shorter pulses on increasing control output This setting is used when UOI is connected to a thermal actuator of type Regin RTAOM 24 NO In the event of a power cut the valve will open Table 9 DIP switches SW4 SW8 Regio Midi manual Chapter 6 Installation 29 Wiring for models for three point control RC CTH RC CT RC CTO RC CDTO gt 30 31 011 32 DI1 33 DI2 CI Orc Oh 405 41 AGnd 42 4 43 C 30 G 10 24 VAC 31 GO 11 1 32 9DI1 Dor 12 _ 5 DI2 CI I RDABS 24 40 4C 41 AGnd 42 4A 43 B Figure 13 Connection diagrams for models for three point control Terminal Designation Operation 10 G Supply voltage 24 V AC 11 GO Supply voltage 0 V 12 For forced ventilation 24 AC output max 0 5 A A 24 V actuator is connected between terminal 12 and terminal 20 GDO 13 DO2 For a three point actuator heating increase 24 V AC output max 0 5 A The actuator s terminal for opening signal is connected to terminal 13 The common pole on the actuator is connected to terminal 20 GDO 14 DO3 For a three point actuator heating decrease 24 V AC output max 0 5 A The actuator s terminal for closing signal is connected to terminal 14 20 GDO 24 V AC out common for DO Internally connected to terminal 10 G 21 GO 0 V common
45. display or through Regio tool 30 AII For an external room sensor PT1000 Measuring range 0 50 C The sensor is connected between terminals 30 and 41 AGnd 31 AR For a 0 10 V CO2 sensor alternatively Flow input alternatively 0 10 V input 32 DII Occupancy detector A potential free contact is connected between terminals 32 and 40 C Closed contact corresponds to occupancy alternatively Window contact DI A potential free contact is connected between terminals 33 and 40 C Closed contact indicates closed window alternatively Change over 33 DD CI Regin s condensation detector KG A FS The sensor is connected between terminals 33 and 41 AGnd alternatively Window contact DI A potential free contact is connected between terminals 33 40 Closed contact indicates closed window alternatively Change over 40 C 24 V DC out common for DI and UI with digital function 41 AGnd Analogue ground reference for AI and UI with analogue function 42 A RS485 communication A 43 B RS485 communication B Table 7 connection terminals for CO2 control and fan control 26 Part Installation Regio Midi manual Wiring for models for fan control RC CF RC CFO RC CDFO 001 12 002 13 DO3 14 GDO 20 G0 21 DO4 22 001 23 002 24 30 9 AI 31 UI1 32 011 33 DI2 CI 00259 13 41 AGnd G0 21 G 210 G0 51 0
46. e factor Modbus Integer Index and Logic always have scale factor 1 EXOline Modbus The Midi controller automatically switches between EXOline and Modbus depending on the present communication type without any communication error Modbus wiring etc A protocol such as Modbus consists of several layers OSI model The bottom layer is always the physical layer number of wires and signal levels The next layer describes the communication digits number of data bits stop bits parity etc Then come the layers describing the Modbus specific functions number of digits per message the meaning of different messages etc For Modbus the bottom layer can be RS485 RS422 or RS232 RS485 contra RS422 RS485 and RS422 are the electric part of the protocol i e the physical layer RS485 has two connections A and B Often there is also a protective earth N on EXO controllers RS485 units are connected A gt and B B You may have to shift A and B in order for Modbus to work RS485 is so called half duplex communication Communication can only go in one direction at a time i e the master will first send an enquiry and will thereafter listen for the reply A and B are used for both transmission and reception 64 Part IV Signals Regio Midi manual RS422 is a full duplex communication which means you need 4 wires 2 for transmit Tx and Tx and 2 for receive Rx and Rx Tx is used to transmit and Rx to receive which means that Tx in one un
47. eState X 3 14 5 Select operating mode for central control 0 Off 1 Unoccupied 2 Stand by 3 Occupied 5 No central control Regio Midi manual Chapter 17 Modbus signals 69 Signal name Type Modbus address Default value Description RC Setp X RegioUnitReturnState 15 3 Preset operating mode 0 1 Unoccupied 2 Stand by 3 Occupied Forced ventilation is not set in Occupied mode Setp X RegioUnitShutDownsState State operating mode by pressing the occupancy button for 5 s 0 1 Unoccupied RC_Setp_X RegioBtnOnOffTime 5s 0s for F models Time to keep the occupancy button depressed before switching to Shutdown state RC Setp X RegioControllerMode 3 Control mode 0 Heating 1 Heating Heating 2 Heating or Cooling via change over 3 Heating Cooling 4 Heating Cooling with VAV control and forced supply air function 5 Heating Cooling with VAV control 6 Cooling 7 Cooling Cooling 8 Heating Cooling V AV C3 models except RC C3DFOC 9 Heating Heating or Cooling via change over only available in models with fan control RC_Setp_X RegioCVHeatType State output signal range for Heating actuators 0 0 10 V 1 2 10 V 2 10 2 3 10 0 RC Setp X RegioCVCoolType 20 State output signal range for Cooling actuators 0 0 10 V 122 10 V 2 10 2 V 3 10 0 V RC Setp X RegioCVHea
48. ed it is controlled digitally with time proportional pulses via output UO1 and UO2 By pulsing the opening degree of the actuator and its valve is varied The period time in seconds is the sum of the on and off output times on the output The period time is FS 60s The controller varies the on and off output times proportionally depending on the output signal demand to the actuator 3 point actuators For 3 point actuators increase decrease actuators T models two digital outputs are used for controlling one actuator one output to open the actuator and one to close it You can configure the run time in seconds for the different actuators FS 120 s The program calculates the position of the actuator 0 100 96 and sends an increase or decrease signal when the controller output signal deviates more than the set neutral zone FS 2 90 from the calculated position On Off spring return actuators When On Off spring return actuator has been selected the functionality is similar to a thermostat function This will be relevant only in control modes Heating Heating Cooling via change over Heating Cooling and Cooling Selecting this function will not be possible if any other control mode has been selected A hysteresis is used when the outputs are On or Off In heating mode the temperature will be permitted to fall below the setpoint minus the hysteresis before the actuator opens The actuator will then remain open until the tempera
49. el at 0 V RC C3DOC RC C3DFOC RC C3DOC C3DFOC RC Setp R RegioCO2 10V R 3 121 2000ppm CO evel at 10 V RC C3DOC RC C3DFOC RC C3DOC C3DFOC RC Setp R RegioCO2FilterFactor R 3 125 0 2 Filter factor for CO input RC C3DOC RC C3DFOC RC C3DOC C3DFOC RC Setp R RegioCO2PresenceLimit R 3 133 800ppm Activate presence if CO level is RC C3DOC RC C3DFOC higher RC C3DOC C3DFOC RC Setp R RegioCO2PresenceHyst R 3 134 160ppm Deactivate presence if the CO RC C3DOC RC C3DFOC level is lower than the limit minus this hysteresis RC C3DOC C3DFOC RC Setp R RegioCO2LimitLow R 3 147 600ppm Min limit for VAV damper at RC C3DOC RC C3DFOC CO control RC C3DOC C3DFOC RC Setp R RegioCO2LimitHigh R 3 148 800ppm Max limit for VAV damper at RC C3DOC RC C3DFOC CO control RC C3DOC C3DFOC RC SetpExt R RegioFlowFilterFactor R 3 149 0 Flow filter factor RC SetpExt R RegioFlow 0V R 3 271 01 5 Flow at 0 V input in AI2 1 5 RC C3DOC RC C3DFOC RC_SetpExt_R RegioFlow_10V R 3 278 100 1 5 Flow at 10 V input in AI2 1 5 RC C3DOC RC C3DFOC RC SetpExt R RegioThermostatHystHeat R 3 279 2K Hysteresis for On Off actuators and heating RC_SetpExt_R RegioThermostatHystCool R 3 280 2K Hysteresis for on off actuators and cooling RC_SetpExt_R RegioMinHeat R 3 281 0 96 Min limit for the heat output RC_SetpExt_R RegioMinECFanSpeed R 3 282 10 Min limit for EC fan RC C3DOC RC C3DFOC RC_SetpExt_R RegioMaxECFanSpeed R 3 2
50. els also have an Occupancy button as well as an INCREASE button and a DECREASE button to increase and decrease the setpoint Occupancy button INCREASE button DECREASE button Figure 17 Buttons for display handling Display indications The display has the following indications indications marked with an asterisk are only available on F models Fan speed Current fan speed 0 1 2 3 Forced ventilation AUTO MAN Auto Man indication on the fan Changeable value AUTO 9 usi S es Occupancy indication Setpoint Indoor outdoor temp E 5 Current room temperature in C to one decimal point a OFF Unoccupied the temperature is shown or Off orr 1 Open window indication only OFF is shown COOL HEAT Shows if the unit controls according STANDBY Standby indication to the heating or cooling setpoint SERVICE Is shown when parameters are set flashes when there is something wrong with the controller Figure 18 Indications in the display 56 Part HI Configuration Regio Midi manual Parameter menu Acknowledge Regret Return Parameters It is possible to set different parameter values in a parameter menu The parameter menu is accessed by simultaneously holding the INCREASE and DECREASE buttons depressed for about 5 seconds and then pressing the INCREASE button twice The Service indication will be displayed The display will in
51. ensor alt sensor contact alt alt alt Flow alt alt Cooling Heating Change over alt Window Condensation actuator actuator 0 10 V contact detector alt alt Change over Change over Models for fan control RC CF RC CFO RC CDFO DO2 DO3 DO4 UO1 UO2 AII UIl DII DD Fan Fan Fan Forced vent Heating Cooling Ext room Change Occupancy Window speed I speed speed III actuator actuator sensor over sensor contact alt alt alt alt Cooling Heating Window Condensation actuator actuator contact detector Models for three point control RC CTH RC CT RC CTO RC CDTO DO2 DO3 DO4 DOS AII UIl DII DD Forced Heating Heating Cooling Cooling Ext room Change Occupancy CI Window vent actuator actuator actuator actuator sensor over sensor contact increase decrease increase decrease alt alt Window Condensation contact detector Table 2 Available connections and their functions for the Midi controllers The function for these outputs depends on the control mode setting see Chapter 7 Control modes For more information about inputs and outputs see the chapter Wiring Accessories for Regio Midi External temperature sensors Occupancy detector Relay module for F models Change over Condensation detector transmitter The accessories are available from Regin For more information see the product sheets and instructions for each product search via www regin se 12
52. es Part Introduction CHAPTER 1 ABOUT THE MANUAL cccssseccccsssecccsssccccessccccessecccessccccecsecccecseccsecsesececseeees 5 TERMS e e EE RR SAT 5 More information iios na a ar oa 5 CHAPTER 2 INTRODUCTION TO REGIO eee eene eee eene eene nnne nnne snae essa sete sanete enun 6 REGIO ZONE 6 02 eee bo o erasa Pope Posee ele rers Fo skata 6 REGIOMIDI 55 a 7 Application example Se HRS SE ann 7 CHAPTER MODELS ass e E 8 EE 9 CHAPTER 4 TECHNICAL DATA 220220212220 Goa suo dones sir 10 Chapter 1 About the manual This manual describes the Regio Midi range of controllers Terms Term used in the manual FS Factory setting More information More information about Regio Midi can be found in e Regio tool Manual Manual of how to configure the controllers e Regio Room Controllers Brochure for the Regio series The information is available for download on Regin s homepage www regin se The document M2183 Regio in EXO Projects containing information on how to use Regio in the EXO system can be downloaded from Regin s FTP server It is intended for our system customers who need to share files
53. es by depressing the Occupancy button functions differently If the Occupancy button is pressed when the controller is in the preset operating mode or in Bypass mode the controller will change to Shutdown If the Occupancy button is pressed in Shutdown mode the controller will switch to Bypass After a configurable period of time in Bypass FS 2 hours the controller will return to the preset operating mode Regio Midi manual Chapter 8 Operating modes 43 Osas default Button push time for Bypass Shutdown mode Preset operating mode Bypass Off Unoccupied Off Unoccupied Standby Occupied 120 min as default Timer J Osas default Button push time for Shutdown For handling of the Occupancy button in combination with central control please see the section entitled Central control below Occupancy detector gt 0 default Disconnect timer Preset operating mode Bypass Off Unoccupied Standby Occupied lo 10 min as default A a Disconnect timer P13 NN For local control of the operating mode between the preset operating mode and Bypass an occupancy detector is connected When occupancy is indicated the controller changes operating mode to Bypass If you want to be able to enter the room temporarily without activating Presence to for example pick something up it is possible to configure a power up delay This means that Presence is not activated until the power up delay
54. ess the fan button once and a fan symbol is lit for 5 seconds in the display As long as the symbol is lit you can change the fan speed by repeatedly pressing the fan button Models without display have a fan switch gt w 1 Figure 14 button on models with display Figure 15 Fan switch on models without display The controller has the following positions Auto Automatic control of the fan speed to maintain desired room temperature 0 Manual off I Manual position with low speed II Manual position with medium speed HI Manual position with high speed Manual setting of speed I III means that the speed of the fan in operating modes Stand by Occupied and Bypass is always the set speed In the other operating modes the fan is demand controlled In auto mode you can configure if the fan should be controlled by the heating output the cooling output or both the heating and cooling outputs When the selected output exceeds the start value that has been set for each speed FS speed 1 20 speed 2 60 speed 3 100 the fan is activated It stops when the controller output signal drops below the set value minus the set hysteresis FS 5 When the fan speed changes there is always a minimum delay 2 3 s between the inactivation of the output for the current speed and the activation of the output for the new speed Only one fan speed output is defined at a time In operating modes Off and Unoccupied t
55. for change over to heating RC_Setp_R RegioAilComp R 3 82 0 C Temperature compensation on RC Setp R RegioUil Comp R 3 83 0 C Temperature compensation on UII RC Setp R RegioInternalTempComp R 3 84 0 C Temperature compensation on internal room sensor RC Setp R RegioTempFilterFactor R 3 85 0 2 Filter factor for analogue temperature inputs RC_Setp_R RegioMinFlow R 3 86 20 Min flow at cool output when control mode Heating Cooling with VAV control is selected Min flow at Y3 output when control mode Heating Cooling VAV is selected RC_Setp_R RegioMaxFlowHeat R 3 87 0 Max flow on cool output when control mode Heating Cooling with VAV control is selected and heating is applied RC_SetP_R RegioRoomTempHighLimit R 3 88 40 C Alarm limit for high room temperature RC_SetP_R RegioRoomTempLowLimit R 3 89 15 C Alarm limit for low room temperature Not used in this model R 3 90 92 RC Setp R RegioUo3OutputManual R 3 93 096 Y3 Output in manual mode RC Setp R RegioHeatOutputManual R 3 94 0 Heating output in manual mode RC_Setp_R RegioCoolOutputManual R 3 95 0 Cooling output in manual mode 74 Part IV Signals Regio Midi manual Signal name Type Modbus Default Description address value RC_Setp_R RegioRoomTempRemote R 3 96 255 Room temp set by remote control if external room sensor is configured 255 disabled RC Setp R RegioCO2 0V R 3 120 Oppm CO lev
56. g setpoint When the room temperature exceeds this limit the controller becomes a cooling controller There is a hysteresis of 0 1 C when the controller changes from heating to cooling controller and vice versa When the controller is heating it regulates according to the basic heating setpoint plus the setpoint adjustment and when it is cooling according to the basic cooling setpoint plus the setpoint adjustment Output signal Neutral zone 100 0 96 Heating SP SP Cooling Temp C heating cooling Heating Cooling with VAV control and forced supply air function Like control mode Heating Cooling but the cooling output is controlling a supply air damper sub tempered supply air When the ventilation is forced See Chapter 12 Special functions the cooling output is set to full cooling full supply air volume regardless of what the controller output signal is 34 Part HI Configuration Regio Midi manual Split output signal Heating Cooling with VAV control Heating and cooling are controlled in the same way as in the VAV control above The damper cannot be forced like above There is also a function that opens the supply air damper on heating demand This is normally always required if the heater is placed in the supply air duct to carry the heat to the room A maximum limit is set for the opening of the damper on heating demand The factory setting is zero which means that the function to open the damper on heating
57. gioDigIn2 L2 3 Value of digital input 2 RC Actual L RegioUDigInl L2 4 Value of universal digital input 1 RC Actual L RegioDigOut 0 2 5 Not used RC Actual L RegioDigOutl L2 6 Value of digital output 1 RC Actual L RegioDigOut2 L2 7 Value of digital output 2 RC Actual L RegioDigOut3 L2 8 Value of digital output 3 RC Actual L RegioDigOut4 L2 9 Value of digital output 4 RC Actual L RegioDigOut5 L2 10 Value of digital output 5 RC Actual L RegioUDigOutl L2 11 Value of universal digital output 1 RC Actual L RegioUDigOut2 L2 12 Value of universal digital output 2 RC Actual L RegioDIOpenWindow L2 13 Indicate open window RC Actual L RegioDICondenseAlarm L2 14 Indicate condense alarm from digital input RC Actual L RegioDIPresences L2 15 Indicate presence from digital input RC Actual L RegioDIChangeOver L2 16 Indicate change over from digital input RC Actual L RegioFanSpeedl L2 17 Indicate fan speed 1 RC Actual L RegioFanSpeed2 L2 18 Indicate fan speed 2 RC Actual L RegioFanSpeed3 L2 19 Indicate fan speed 3 RC Actual L RegioForcedventilation L2 20 Indicate forced ventilation RC Actual L RegioCVHeatPulsProp L2 21 Indicate pulse prop heating RC Actual L RegioCV CoolPulsProp L2 22 Indicate pulse prop cooling RC Actual L RegioCVHeatInc L2 23 Indicate increase heating RC Actual L RegioCVHeatDec L2 24 Indicate decrease heating RC Actual L RegioCV CoolInc L2 25 Indicate increase cooling RC Actual L RegioCV CoolDec L2 26 Indicate decrease cooling
58. gioRemoteState If RegioRemoteState equals 5 it will change to the preset operating mode If the controller is in Stand by and the central control is changed the controller will change to this new operating mode When central control is used and the occupancy detector is activated the controller will go to Bypass for a configurable time and thereafter return to the central operating mode Via central commands from a comprehensive system for example EXOA you can handle the controller in the same way as you handle it locally via the Occupancy button i e you can change its operating mode to Off Unoccupied Shutdown or Bypass Command Shutdown Command Bypass Off Unoccupied Central commands should be regarded as events and can be changed locally via the Occupancy button Regio Midi manual Chapter 8 Operating modes 45 Chapter 9 Setpoint calculation Off Unoccupied Stand by Occupied Bypass Basic setpoint There are two basic setpoints one basic heating setpoint FS 22 C and one basic cooling setpoint FS 24 C Units without display have DIP switches to change the setpoints see Table 3 The basic cooling setpoint is automatically changed at the same time Therefore the difference between the basic heating setpoint and the basic cooling setpoint is always the same On models with display the basic setpoint is set in the display On all models you can also configure the setpoints via a central syste
59. hange over function will measure the difference between the room and media temperature As long as the heat valve is more than 20 96 open or every time a valve exercise is performed the difference between the media and room temperature will be calculated If the temperature difference is lower than the configured value differs for Heating and Cooling mode the control mode will change The factory settings for the difference between Heating and Cooling change over are e Change from Heating to Cooling 4K Change from Cooling to Heating 3K This setting may be changed using parameters number 9 and 10 Forced ventilation All Regio midi controllers have functionality for forced ventilation All controllers except RC C3DFCC have a digital output for controlling a forcing damper to increase the airflow to the room This output is always activated in operating mode Bypass When control mode Heating Cooling with VAV control and forced supply air function is active the cooling output is used to control the forcing damper When forced ventilation is active the cooling output is set to full cooling regardless of what the controller output signal 18 Models RC C3 RC C3H RC C30 RC C3DOC select whether the forced ventilation output should be a 0 10 V analogue output or a 24 V digital output parameter 22 Condensation detector Special input CI There is a special input CI on all Regio controllers This input is intended for
60. he fan is stopped regardless of the position of the fan switch or the setting in the display on condition that the temperature is within the set temperature limits If the temperature is not within the set temperature limits the fan will be started in the corresponding Auto position regardless of the settings 50 Part HI Configuration Regio Midi manual No fan stop Models RC CF CFO and CDFO contain an option in which the fan will never stop in operating modes Bypass Occupied and Standby but instead continue to run at fan speed 1 This function uses parameter number 41 The factory setting for this option is 0 meaning that the function is disabled This function will only work if the fan is in Auto mode if the fan is set to manual mode the manual setting will instead be applied EC fan control Models RC C3 C3H C30 C3DOC and C3DFOC offer an added function for the control of EC fans When this function is active Y3 will follow Y1 and Y2 respectively As for F models with fan control it is possible to select whether the fan will run in Heating or Cooling or in both Heating and Cooling This setting is made using the same parameter P50 as for other fan models The function is activated by setting UO3 to Control of EC fan P22 It may be activated in control modes Heating Heating Heating Heating or Cooling via change over Heating Heating or Cooling via change over Heating Cooling Cooling Cooling and Cooling T
61. he function will add a minimum limit to UO3 so that the fan will have sufficient supply voltage Output 10V Controller mode Cooling or Heating Cooling 90 by default 77177777777 7777777 Max limit for EC fan If Y1 gt P84 Y3 v2 Else Y3 0 V 10 by default Min limit for EC fan 4 Cooling demand 0 100 Output Controller mode Heating or Heating Cooling 10V 90 by default 771777777777777777 Max limit for EC fan If Y1 P84 1 Else Y3 0 V 10 by default Min limit for EC fan __ Heating demand 0 100 Cooling mode Output Controller mode Cooling Cooling 10V 90 by default 71 0007 Max limit for EC fan If Y1 gt P84 2 Y3 Y1 Y2 2 Else Y3 0 V 10 by default Min limit for EC fan __ Cooling demand Heating mode Output Controller mode Heating Heating 10V 90 by default 7777777777777 5 Max limit for EC fan If Y1 gt P84 2 Y3 Y1 Y2 2 Else Y3 0V 10 by default Min limit for EC fan Heating demand 0 100 Regio Midi manual Chapter 11 Fan control 51 For model RC C3DFOC the fan button will control the EC fan output to preset speeds and then offer feedback to the user through the fan segment displayed This takes place in the same way as for other F models When the fan button is depressed it will step through the configured fan levels Y3 Auto controlled 20 by default St
62. he thermal actuator is connected between terminals 23 and 20 GDO Using DIP switch SWS the output can be set to NO or NC N B when UOI has been set for use with thermal actuators for 24 V AC digital output function the controller utilizes time proportional control to give a smooth control of the connected actuator The output signal for UO1 can be set to NC normally closed or NO normally open by changing the position of DIP switch SW8 for models without display and by changing parameter 73 for models with display This setting refers to which type of actuator NC or NO it is intended for For choice of output function analogue or digital see Table 9 SW5 On models with display go into the parameter menu and change parameter 20 to thermal actuator alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 23 and 20 This can be configured either through the display or through Regio tool The output signal for UO1 can be set to NC normally closed or NO normally open 24 UO2 Control of heating cooling FS or heating cooling via change over For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 24 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A
63. heating actuators 23h 37 Time in hours between exercise of cooling actuators 23h 38 Hysteresis for on off actuators and heating 2K 39 Hysteresis for on off actuators and cooling 2K 40 Minimum limit for the heat output 20 58 Part Configuration Regio Midi manual Parameter number Description FS 41 The fan will never stop 0 OFF 1 ON 42 Select if setpoint or actual value is to be shown in the display O Actual value 1 Heat setpoint 2 Cool setpoint 3 Average value of heating and cooling setpoint 4 Only setpoint offset 5 concentration in the room in ppm RC C3DOC C3DFOC 6 Heating setpoint setpoint offset 7 cooling setpointtsetpoint offset 8 Average of heating and cooling setpoint setpoint offset 9 The calculated flow in the duct in 1 5 RC C3DOC C3DFOC 43 Highest permitted setpoint adjustment upwards 3 C 44 Highest permitted setpoint adjustment downwards 3 C 45 Preset operating mode 0 Off 1 Unoccupied 2 Stand by 3 Occupied Forced ventilation is not set in Occupied mode 46 State operating mode by pressing the occupancy button for 5 s 0 Off 1 Unoccupied 47 48 Select operating mode for central control 0 Off 1 Unoccupied 2 Stand by 3 Occupied 5 No central control Min flow at cool output when control mode Heating Cooling with VAV control is selected Min flow at Y3 output when control mode Heating Cooling VAV is selected
64. in summer mode and as a heating actuator in winter mode In summer mode Regio will function as a regular heating cooling controller In winter mode Regio will function as a heating heating controller UO2 will initiate first and UOI second The electrical heating battery connected to UOI will start only if the ordinary heat battery on UO2 cannot meet the heating demand When a heating demand exists the output of UO2 is 0 100 linear to the heating demand 0 48 and UOI 0 100 to the heating demand 52 100 When the heating demand is 48 52 UO2 will always output 100 and UOI 0 Regio Midi manual Chapter 7 Control modes 37 Summer mode activated Winter mode activated by change over input by change over input Output Output 100 100 1 Y2 Ft For 1 0 Room temp 0 Room temp 52 100 0 48 96 i 1 te 1 22 C by default 24 by default 22 C by default Heating setpoint Cooling setpoint Heating setpoint As the electrical heater is connected to UOI and since an electrical heater may become very hot a fan stop delay has been implemented into the system The fan stop delay will only be activated in heating mode and then only if the fan has been running prior to the stop When the heat output has been set to 0 96 the fan will continue to run for an additional 120 s at the same speed it had prior to stopping It is very important to note that Regio does not have any built in function for m
65. inal type was introduced in the Regio controllers The old terminal type is dark grey and intended for 1 3 mm pins The new terminal type is light grey and intended for 1 1 mm pins Confusion between a new and old bottom plate may lead to deficient contact Therefore it is important to use an old electronics unit together with an old bottom plate and a new electronics unit together with a new bottom plate Figures 1 and 2 show an example of the difference between the old and new terminal types the number of terminals depends on the Regio model 7 22809 29255 e al H 4 DOCODOOCE EX CERA e ARK KK Sick CRA Figure 1 Old terminal type 1 3 mm pins Figure 2 New terminal type 1 1 mm pins Using labels On the back of the electronics cassette there is a set of labels which makes it easier to install large numbers of Midi controllers By using the labels as carriers of information for the installation engineer much time will be saved and you can keep wiring errors at a minimum Model and address Field for new address or reference to connection diagram Field for room number Figure 3 Label on the back of the controller The three piece label can be split and the parts can be fastened to the installation drawing and the bottom plate of the controller The label carries information on the communication address etc and has a note area where you can enter a reference number t
66. ing via change over For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 23 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A The thermal actuator is connected between terminals 23 and 20 GDO alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 23 and 20 This can be configured either through the display or through Regio 001 The output signal for UOI can be set to NC normally closed or NO normally open Regio Midi manual Chapter 6 Installation 25 Terminal Designation Operation 24 UO2 Control output heating cooling FS or heating or cooling via change over For a 0 10 V DC valve actuator max 5 mA FS The valve actuator s 0 10 V control signal terminal is connected to terminal 24 and its supply terminals to terminals 10 and 11 Make sure that the reference pole GO is connected to the correct terminal on the actuator alternatively For a 24 V AC thermal actuator max 2 0 A The thermal actuator is connected between terminals 24 and 20 GDO alternatively For a 24V AC actuator with spring return max 2 0 A The actuator is connected between terminals 24 and 20 This can be configured either through the
67. is 5 s as a default It is configurable via Regio tool When pressing the occupancy button the controller is set to forced ventilation If the button is pressed again when forced ventilation is active the controller will switch to the default running mode which can be configured either to Off Unoccupied Standby or Occupied When the Occupancy button is held depressed for more than 5 seconds the controller will change its operating mode to Shutdown Off Unoccupied regardless of the present operating mode Via the display or Regio tool it is possible to configure which operating mode Off or Unoccupied should be activated upon Shutdown FS Unoccupied If the Occupancy button is pressed for less than 5 seconds when the controller is in its preset operating mode or in Shutdown the controller will change to Bypass If the button is then depressed for less than 5 seconds the controller will return to the preset operating mode After a configurable period of time in Bypass FS 2 hours the controller will return to the preset operating mode d Shutdown mode Preset Operating mode Bypass Off Unoccupied T 120 min as default Timer B4 gt 5 s as default Button push time for Shutdown For models with fan control RC CF CFO CDFO C3DFOC the Occupancy button Shutdown push time is 0 s as a default This value is configurable via Regio tool Because of the default 0 s setting switching operating mod
68. it must be connected to Rx in the other and vice versa As for signal levels etc RS422 and RS485 are identical To interconnect RS485 and RS422 On the RS422 unit connect Tx with Rx and Tx with Rx We have now changed a 4 wire system to a 2 wire system and can connect them to A and B on the RS485 unit Which goes where is something you most often need to find out by trial and error Incorrect polarity will just give nonfunction but cannot harm either unit Tx A or B Rx E Tx B or A es Bitrate two stop bits parity is the next layer These settings must correspond to the settings in the master unit Find out how the master is set and then give the Controller the same settings Parity can be set to odd even FS or none If none is chosen two stop bits will automatically be used If odd or even is chosen only one stop bit is used or there will be too many bits altogether 1 start bit 8 data bits 1 parity bit and 1 stop bit give a total of 11 bits which is the maximum amount Regio Midi manual Chapter 16 Modbus signal types 65 Chapter 17 Modbus signals Discrete inputs Signal name Type ir M Description RC Actual L RegioDigIn 0 L2 1 Not used RC Actual L RegioDigInl L2 2 Value of digital input 1 RC Actual L Re
69. itially show the parameter number 1 Use the INCREASE and DECREASE buttons to scroll between parameters Press the Occupancy button to select the desired parameter The parameter number will be replaced by the parameter value The value can be changed using the INCREASE and DECREASE buttons If a button is held depressed the value will start scrolling first slowly and then with increasing speed in 3 4 steps with 2 3 seconds between steps To acknowledge and store a set parameter value press the Occupancy button again the display then returns to showing the parameter number To retrieve the original value i e the value before change press the INCREASE and DECREASE buttons at the same time The original value is shown on the display After a certain time about 1 minute or when the INCREASE and DECREASE buttons are pressed at the same time while in the menu the display returns to the normal view Exit is shown on the display after the last parameter The parameter menu is exited by pressing the Occupancy button while in Exit Pressing on INCREASE goes to the first parameter and pressing on DECREASE goes to the last parameter The following parameters can be changed in the parameter menu FS Factory setting Parameter RA Bb SE Description FS 1 Basic heating setpoint 22 C 2 Basic cooling setpoint 24 C 3 Neutral zone at standby 3 C Heating setpoint Basic sp heating 3
70. ject name Object ID Description Values Writable RC Actual L RegioDIOpenWindow Binary input 0 Indicate open window ACTIVE No INACTIVE RC_Actual_L RegioDICondenseAlarm Binary input Indicate condense alarm YES No from digital input NO RC_Actual_L RegioDIPresences Binary input 2 Indicate presence from ACTIVE digital input INACTIVE RC_Actual_L RegioDIChangeOver Binary input 3 Indicate change over ACTIVE No from digital input INACTIVE RC Actual L RegioRoomTempHighTempAlarm Binary input 4 Room high temperature ACTIVE No pus INACTIVE RC Actual L RegioRoomTempLowTempAlarm Binary input 5 Room low temperature ACTIVE No INACTIVE RC Actual L RegioDICO2 Binary input 6 Indicates high CO ACTIVE No INACTIVE All binary inputs have normal polarity 78 Part IV Signals Regio Midi manual Binary values Object name Object ID Description Values Writable Actual L RegioForced Ventilation B 1 Indicate forced ventilation ON OFF No value RC Actual L RegioCVHeatPulsProp Binary Indicate pulse prop heating ACTIVE No value 1 INACTIVE RC Actual L RegioCVCoolPulsProp Binary Indicate pulse prop cooling ACTIVE No value 2 INACTIVE Actual L RegioCVHeatInc Binary Indicate increase heating ACTIVE No value 3 INACTIVE RC_Actual_L RegioCVHeatDec Binary Indicate dec
71. m or Regio tool When the model has DIP switches the latest setpoint change will be valid Setpoint offset On all models except RC C3H and RC CTH the setpoint value can be adjusted up and down from the basic setpoint value via the setpoint knob or the display How much the value can be adjusted can be configured in Regio tool or in the parameter menu in the display FS 3 C In models with display you use the INCREASE button to increase the current setpoint in steps of 0 5 C to the max limit and the DECREASE button to decrease the current setpoint in steps of 0 5 C to the min limit RC C3H and RC CTH have neither display nor setpoint knob On these models the setpoint is adjusted from the back of the electronics cassette with a small screwdriver Calculation of the active setpoint What setpoint value the controller should control according to depends on the operating mode the control mode and the current setpoint offset In operating mode Off or on open window the controller is a heating controller and controls according to the frost protection setpoint FS 8 C regardless of the setpoint adjustment In operating mode Unoccupied it controls according to the heating setpoint FS 15 C if a control mode with heating has been set and the room temperature is lower than this setpoint If the room temperature is higher than the cooling setpoint FS 30 C and a control mode with cooling has been set the unit is a cooli
72. mp R 4 11 Room temperature RC Actual R RegioRoomTempExt 4 12 Room temperature from external sensor RC Actual R RegioRoomTempInt 4 13 Room temperature from internal sensor RC Actual R RegioAIChangeOver 4 14 Change over temperature RC Actual R RegioAnaInl R 4 15 Value of analogue input 1 RC Actual R RegioU Analn1 R 4 16 Value of universal analogue input 1 RC Actual R RegioUAnaOutl R 4 17 Value of universal analogue output 1 RC Actual R RegioU AnaOut2 R 4 18 Value of universal analogue output 2 RC Actual R RegioSetPAdjustment R 4 19 Setpoint adjustment from internal device RC Actual R RegioPIDSetP R 4 20 The controller setpoint RC_Actual_R RegioPIDOutput R 4 21 The controller output 0 100 RC_Actual_R RegioHeatOutput R 4 22 Heat output 0 100 96 RC Actual R RegioCoolOutput R 4 23 Cool output 0 100 90 RC Actual R RegioAIl Raw R 4 24 The raw value on analogue input 1 RC Actual R RegioUllRaw R 4 25 The raw value on universal input 1 RC Actual R RegioUO3Output R 4 26 Value of universal output 3 RC Actual R RegioU AnaOut3 R 4 27 Value of universal analogue output 3 RC Actual R RegioRoomCO2 R 4 32 CO input value ppm Not used in this model R 4 44 RC_Actual_R RegioVoltInput R 4 45 Value of 0 10 V DC input at AI2 RC_Actual_R RegioRoomFlow R 4 46 Value of Room Air Flow at AI2 68 Part IV Signals Regio Midi manual Holding register Signal name Type Modbus Default Description address value R
73. ms Answer delay in Modbus t3 5 in ms Should be 3 5 times a character i e at least 5 ms RC_Setp_X RegioDispBacklightLO X 3 48 10 10 Backlight low RC_Setp_X RegioDispBacklightHi X 3 49 30 30 Backlight high RC_Setp_X RegioDispContrast X 3 50 15 15 Display contrast RC_Setp_X RegioDisplayViewMode X 3 SI Select if setpoint or actual value is to be shown in the display O Actual value 1 Heat setpoint 2 Cool setpoint 3 Average value of heating and cooling setpoint 4 Only setpoint offset 5 CO concentration in the room in ppm RC C3DOC C3DFOC 6 Heating setpoint setpoint offset 7 Cooling setpoint setpoint offset 8 Average of heating and cooling setpoint setpoint offset 9 The calculated flow in the duct in l s RC C3DOC C3DFOC 72 Part IV Signals Regio Midi manual Signal name Type Modbus address Default value Description RC Setp X RegioDispSetp Mode RC 5 X RegioUo3 only used for RC C3xxxx models X 3 52 53 0 6 RC C3DFOC or 1 other models Setpoint display at setpoint adjustment O The offset is shown in the display 1 The active setpoint offset is shown in the display Heat or Cool is shown depending on whether heat or cool is active when entering the menu 2 Heat setpoint offset is shown in the display 3 Cooling setpoint offset is shown in the display 4 Heating occ
74. n with a separate bottom plate for wiring makes the whole Regio series easy to install and commission The controllers are mounted directly on the wall or on a wallbox 6 Part I Introduction Regio Midi manual Regio Midi Communication The controllers can be connected to a central SCADA system via RS485 EXOline BACnet or Modbus and configured for a particular application using the configuration tool Regio tool which can be downloaded free of charge from Regin s homepage www regin se See the manual for Regio tool for more information Control modes The controllers can be configured for different control modes control sequences e Heating e Heating or cooling via the change over function e Heating Heating e Heating Cooling e Heating Cooling with VAV control and forced supply air function e Heating Cooling with VAV control e Cooling e Cooling Cooling e Heating Cooling VAV only available in 3 models except C3DFOC Heating Heating or Cooling via change over only available in F models Application examples RS485 ____ m m m RS485 2 mi m m me m TCP IP HUB switch RS485 mu m m RS485 oo l7 14 TCP IP Gateway 5 8282 2 532 Regio Midi manual Chapter 2 Introduction to Regio 7 Chapter 3 Models Basic models F models ee T models There
75. ng The current room temperature or setpoint depending on the configuration is shown in the display Depending on the settings and input values the controller will be set to different control modes using different setpoint values Setpoint heating 8 C frost protection No cooling Setpoint heating 15 C Setpoint cooling 30 C Setpoint heating 22 dead band 3 C Setpoint cooling 24 dead band 3 C Setpoint heating 22 C Setpoint cooling 24 C Bypass Occupied with forced ventilation Heating Cooling Room temp C 42 Part HI Configuration Regio Midi manual Activation of the different operating modes Preset operating mode Shutdown The preset operating mode is configured to Occupied by default On models without display the preset mode can be changed to Stand by using DIP switch SW3 OFF FS Occupied ON Stand by On models with display this is configured in the parameter menu in the display parameter 45 The operating mode is changed at the following events e When the Occupancy button is pressed if the controller has an Occupancy button e Activation deactivation of an occupancy detector on the digital input Activation deactivation of presence by level for model with CO detection e Via central control for example central time control central booking system etc Occupancy button For models without fan control the occupancy button push time for Shutdown
76. ng controller and controls according to the cooling setpoint The active setpoint changes in the middle of the neutral zone with a hysteresis of 0 1 C A setpoint adjustment is not active in this operating mode In operating mode Stand by the controller controls according to the basic heating setpoint or the basic cooling setpoint plus minus a settable neutral zone FS 3 C The setpoint can also be adjusted via the setpoint knob or display This means that the factory setting for the heating setpoint is 19 C 3 C local adjustment and the cooling setpoint is 27 C 3 C local adjustment On heating demand the unit will control according to the heating setpoint and on cooling demand it will control according to the cooling setpoint The setpoint change takes place halfway between the setpoints with a hysteresis of 0 1 C In operating modes Occupied and Bypass the unit controls according to the basic heating setpoint or the basic cooling setpoint The setpoint can also be adjusted via the setpoint knob or display The setpoint change takes place halfway between the setpoints with a hysteresis of 0 1 C 46 Part HI Configuration Regio Midi manual Setpoint display at setpoint adjustment Parameter 74 is used to set what is shown in the display when the setpoint is adjusted 0 1 The added adjustment is shown in the display Example 1 5 C The adjustment is added to both the heating and cooling setpoints The sum of the
77. nput 3 Value of universal analogue input 1 V No RC_Actual_R RegioRoomC02 Analog input 4 CO input value ppm No Analogue values Object name Object ID Description Unit Writable RC Actual R RegioU AnaQutl Analog value 0 Value of universal analogue V No output 1 RC Actual R RegioUAnaOut2 Analog value 1 Value of universal analogue V No output 2 RC Actual R RegioSetPAdjustment Analog value 2 Setpoint adjustment from C No internal device Actual R RegioPIDSetP Analog value 3 Controller setpoint RC Actual R RegioPIDOutput Analog value 4 Controller output No RC Actual R RegioHeatOutput Analog value 5 Heat output No RC Actual R RegioCoolOutput Analog value 6 Cool output No RC Setp R RegioOccSetPHeat Analog value 7 Room base setpoint heating C Yes RC Setp R RegioOccSetPCool Analog value 8 Room base setpoint cooling C Yes RC_Setp_R RegioUnOccSetPHeat Analog value 9 Room heat setpoint in Yes unoccupied mode RC_Setp_R RegioUnOccSetPCool Analog value 10 Room cool setpoint in C Yes unoccupied mode RC_Setp_R RegioFrostSetP Analog value 11 Frost protection setpoint Yes RC_Setp_R RegioSetPOffset Analog value 12 Setpoint adjustment C Yes RC_Setp_R RegioHeatOutputManual Analog value 13 Manual value heating output Yes RC_Setp_R RegioCoolOutputManual Analog value 14 Manual value cooling output 70 Yes Regio Midi manual Chapter 19 BACnet signals TI
78. ntrols according to the heating setpoint plus minus the setpoint adjustment The setpoint can be adjusted in the display or via the setpoint knob Heating Heating In control mode Heating Heating the controller is always a heating controller and controls according to the basic heating setpoint plus the setpoint adjustment The control signal is divided between the two outputs with a deadband in between The first output UO1 works between 0 48 of the control signal When the control signal reaches 52 UO2 starts to operate and will be 10 V when the control signal is 100 See the figure below Regio Midi manual Chapter 7 Control modes 33 Output signal 100 0 iw Heating 1 48 52 Heating 2 100 Heating demand Heating or cooling via change over This control mode is used for installations with 2 pipe systems It makes it possible to use the same pipe for both heating and cooling depending on whether heating or cooling is required Switching between heating and cooling mode can be performed either by using a digital or an analogue input Only one output is used to control the actuator UO1 See more in the chapter Change over function Heating Cooling In control mode Heating Cooling the controller functions as a heating controller when the room temperature is lower than the basic heating setpoint plus half the neutral zone The neutral zone is the difference in temperature between the heating setpoint and the coolin
79. o the connection diagram The address on the sticker has a different meaning depending on what communication protocol is used 14 Part II Installation Regio Midi manual Example 1 Example 2 If the address on the sticker is 191 183 the following addresses are valid for the different communication protocols EXOline PLA 191 ELA 183 Modbus address 183 BACnet device ID 191183 low 4 figures 1183 high 3 figures 19 MS TP address 83 If the address on the sticker is 10 001 the following addresses are valid for the different communication protocols EXOline PLA 10 ELA 1 Modbus address 1 BACnet device ID 10001 low 4 figures 1 high 3 figures 1 MS TP MAC address 1 Configuration The controllers are normally configured using Regio tool The passwords for the various access levels are 1111 log in as administrator and 3333 log in as operator For more information see the manual for Regio tool Models with a display can be configured via the parameter menu but the easiest way to set parameters is via Regio tool Models without a display have DIP switches that should be set See the section DIP switches below The computer running Regio tool is connected to the cassette with a USB to RS485 converter The adapter is connected to terminals 42 A and 43 B Use a 24 V AC trafo for supply voltage of the electronics cassette on terminals 10 and 11 If you want to configure the unit it is norm
80. ol makes it possible to test outputs The output itself is not affected only the software object that controls the output This means that the built in safety functions will not be disregarded The controllers have different indications which can be used for troubleshooting See the section Indications 16 Part Installation Regio Midi manual Chapter 6 Installation Mounting Wiring Place the controller in a location that has a temperature representative for the room A suitable location is approx 1 6 m above floor level in a place with unobstructed air circulation Remove the frame by depressing the locking tab in the lower edge of the cover with a screwdriver See figure 5 Next gently pry the electronics cassette out by using the four rectangular screwdriver slots to lever against the edge of the bottom plate See figure 6 Note Take care not to damage the electronics when inserting the screwdriver into the slots Figure 5 Figure 6 The bottom plate with terminals has a number of fixing hole combinations Select suitable holes and screw the bottom plate onto the wall or connection box so that the arrows on the bottom plate point upwards Do not tighten the screws too hard With surface mounted cabling break out suitable holes from the marks in the plastic All units that share the same transformer and communication loop must use the same transformer pole for G terminal 10 and GO terminal 11 On the communic
81. onitoring when the fan is running or if the heat battery is overheating This function must instead be provided by a supervisory system Additional features CO sensor and control RC C3DOC RC C3DFOC RC C3DOC and RC C3DFOC can be set to all of the above control modes When RC C3DOC and RC C3DFCC are set to VAV control the control mode is combined with a CO control function In control mode Heating Cooling with VAV control the concentration in the room will make the VAV damper cooling output UO2 open The function is linear and the damper works between the configured min flow FS 20 and 100 depending on the CO concentration in the room If the CO concentration drops below the configured min limit the damper will stay on the minimum allowed air flow When the concentration rises the damper will open linearly until reaching the configured CO max value at which point it will be 100 96 open Minimum limit on analogue 0 10 V actuators The minimum limitation on the analogue output is only active in Bypass Occupied and Standby If the operating mode is Unoccupied or Off the damper will be closed 0 V on the analogue output See table below Operating mode Min limit VAV output Y2 Bypass 20 96 2V Occupied 20 96 2V Standby 20 96 2V Unoccupied 20 OV Off 20 96 OV 38 Part HI Configuration Regio Midi manual Many damper actuators have a working range of 2 10
82. ontroller will return to the preset operating mode after power failure However the set operating mode will be saved if central control is being used parameter 47 62 Part HI Configuration Regio Midi manual Part IV Signals CHAPTER 16 MODBUS SIGNAL 4 enne nnne nenne 64 CHAPTER 17 MODBUS SIGNALS 66 BINEI AIN A SERE EAE E ie alzo 66 COIL STATUS REGISTER 67 INP T REGISTER i gt eo oe DAT Eee a e shoe seb 67 HOEDING REGISTER irse eda E t Pee e e b rea e EE chee Na 69 CHAPTER 18 BACNET SIGNAL 5 0 76 CHAPTER 19 BACNET SIGNALS 4 444 77 Chapter 16 Modbus signal types EXOL Types The EXOL types of the signals R Real 3 3E38 3 3E38 I Integer 32768 32767 X Index 0 255 L Logic 0 1 Modbus Type The Modbus types of the signals types in the list below 1 Coil Status Register Modbus function 1 5 and 15 2 Discrete Input Modbus function 2 3 Holding Register Modbus function 3 6 and 16 4 Input Register Modbus function 4 Supported Modbus functions 1 Read Coils 2 Read Discrete Input 3 Read Holding Register 4 Read Input Register 5 Write Single Coil 6 Write Single Register 15 Write Multiple Coils 16 Write Multiple Registers Scal
83. ool 2 Forced ventilation at 100 Cool output TI Operating mode at presence detection 4 3 Occupied 4 Bypass 78 EXOline PLA address Factory set 79 EXOline ELA address Factory set 80 Selection of cooling output functions NO NC 0 0 NC 1 NO 81 State the connected sensor at AI2 Only RC C3DOC C3DFOC 5 0 1 4 No function 5 CO sensor 6 No function 7 0 100 OEM function 8 Flow calculation 9 0 10 V 82 Flow at 0 V input in AD 01 5 83 Flow at 10 V input in AD 100 I s 84 Minimum runtime when calculating for change over 600s 86 Alarm limit for high room temperature 40 C 60 Part Configuration Regio Midi manual Parameter ARCO ADE Description FS 87 Alarm limit for low room temperature 15 C 97 Activate presence if level is higher RC C3DOC C3DFOC 800ppm 98 Deactivate presence if the CO level is lower than the limit minus this 160ppm hysteresis RC C3DOC C3DFOC 100 Filter factor for CO2 input RC C3DOC C3DFOC 0 2 104 CO gt level at 0 V RC C3DOC C3DFOC Oppm 105 CO level at 10 V RC C3DOC C3DFOC 2000ppm 112 Min limit for VAV damper at CO control RC C3DOC C3DFOC 600ppm 113 Max limit for VAV damper at COz control RC C3DOC C3DFOC 800ppm 114 This parameter defines the protocol to be used 0 0 EXOline Modbus 1 BACnet MS TP 115 BACnet MS TP MAC address Factory set 00 0 127 master address 99 128
84. plications on Y2 Default is 20 min limit 36 Part III Configuration Regio Midi manual Reversed sequence In some applications e g free cooling it may be desirable to reverse the sequence of Y2 and Y3 i e to open Y3 before Y2 This function is a configuration of the control mode Heating Cooling VAV When the function is active the sequence of Y2 and Y3 will be reversed i e will open 0 100 when controller output is in the range of 0 48 96 and Y2 will open 0 100 when the controller output is 52 100 See the figure below Output 100 20 by default min flow at cool output for VAV control gt Controller output At forced ventilation Y3 will open fully as before and Y2 will control depending on temperature However Y2 will not give any output unless the controller output is above 52 96 Output 100 96 Y3 100 96 at forced ventilation 20 by default min flow at cool output for VAV control Controller output 100 0 96 This function is only valid for models with Y3 output Heating heating or cooling via change over For models offering fan functionality a function for control of a heating battery on UOI in sequence with change over UO2 is available When this has been performed the start sequence of UO1 UO2 is changed along with the limits for fan start The change over function will be used to switch between summer and winter mode UO2 will be used as a cooling actuator
85. r of type Regin RTAOM 24 NO In the event of a power cut the valve will open Table 11 DIP switches SW4 SW8 Regio Midi manual Chapter 6 Installation 31 Part III Configuration CHAPTER 7 CONTROL MODES eee cereo oo eee kinds a eoo sio ae Fee epo pee Ra os no Nee nae skan isss 33 DIFFERENT CONTROL MODES 5 6 inne bea rho ehm ct 33 ADDITIONAL FEATURES a ate ta 38 CHAPTER 8 OPERATING MOOD BS iniziare na da ra dansa Eee UR o Po e ea aae co eoe 41 DIFFERENT OPERATING MODES eene ACTIVATION OF THE DIFFERENT OPERATING MODES CHAPTER 9 SETPOINT CALCULATION 4 4 4 4 46 CHAPTER 10 ACTUATORS sas 48 CHAPTER 11 FAN oen oso ep a Ouen aes ena n coe PO E OU aea RUE RO EROS 50 CHAPTER 12 SPECIAL 5 4 53 CHANGE OVER FUNCTION FORGED VENTILATION 02 x2 ro is ELI Dana b CONDENSATION DETECTOR 5 Ero bf de boten s Ex ird io go i 53 FROST PROTECTION reed ie odo suo ever o seb oU vols eee Sosa eo gotta obla raso e 54 HIGH LOW ROOM TEMPERATURE ALARM cri 54 CHAPTER 13 INDICATIONS sasssa 55 CHAPTER 14 DISPLAY 4 4 4 4400 56 DISPLAY INDICATIONS ce coe eorr t co e n aa 56 PARAMETER MENU
86. re returns There is no advanced alarm handling incorporating blocking or acknowledging or so forth There is only an indication for faulty temperatures All other alarm and alarm handling functions must be handled by a supervisory system 54 Part Configuration Regio Midi manual Chapter 13 Indications LED All controllers without a display except RC CH and RC CTH have a LED shaped like a thermometer on the front A red indication is shown when heating control is functional and a blue indication is shown when cooling control is active When there is something wrong with the controller or if a setting is incorrect the LED will flash red and blue Figure 15 The LED The occupancy button In models without a display the occupancy button has the following indications e Occupied Fixed green indication e Standby Flashing green indication e Bypass Fixed green indication with a short flash e Off and Unoccupied No indication Figure 16 The occupancy button On Regio models with a display these indications are shown in the display See the chapter Display handling Communication LED When the frame has been removed a LED is visible in the right edge of the controller It lights up green when the controller is sending information Regio Midi manual Chapter 13 Indications 55 Chapter 14 Display handling The Midi models RC C3DO RC C3DFOC RC CDFO and RC CDTO have a display instead of a setpoint knob These mod
87. rease heating ACTIVE No value 4 INACTIVE RC_Actual_L RegioCVCoolIne Binary Indicate increase cooling ACTIVE No value 5 INACTIVE RC_Actual_L RegioCVCoolDec Binary Indicate decrease cooling ACTIVE No value 6 INACTIVE RC_Actual_L RegioChangeOverState Binary Indicate change over state from ACTIVE No value 7 both digital and analogue input INACTIVE RC Actual L RegioRoomTempSensorAlarm Binary Indicate sensor alarm on room ACTIVE value 8 sensor INACTIVE RC_Setp_L RegioB ypass Binary Force the unit in Bypass mode ACTIVE Yes value 9 Is automatically returned after INACTIVE Bypass time default 120 min RC_Setp _L RegioShutDown Binary Force the unit in ShutDown ACTIVE Yes value 10 INACTIVE All binary values have normal polarity Object name Object ID Description Regulator Loop 0 The Regio Regulator Multistate inputs Object name Object ID Description Values Writable RC_Actual_X RegioFanSwitch Multistate Fan switch state 1 OFF No input 0 2 LOW 3 MEDIUM 4 HIGH S AUTO RC_Actual_X RegioUnitState Multistate Current unit state 1 0ff input 1 2 Unoccupied 3 Stand by 4 Occupied 5 Bypass Regio Midi manual Chapter 19 BACnet signals 79 Object name Object ID Description Values Writable RC_Actual_X RegioControllerState Multistate Current controller state 1 No input 2 2 Heating 3 Cooling RC_Actual_X RegioFanSpeed Multistate
88. s connected between terminals 33 and 41 AGnd alternatively Window contact DI A potential free contact is connected between terminals 33 and 40 Closed contact indicates closed window See Table 11 SWA 40 24 V DC out common for DI and UI with digital function 41 AGnd Analogue ground reference for AI and UI with analogue function 42 A RS485 communication A 43 B RS485 communication B Table 10 connection terminals for models for three point control DIP switches only models without display The ON position is marked on the DIP switch ON OFF Comment SWA DL window contact CI Regin s condensation Function terminal 33 Closed contact indicates detector KG A FS DD CI closed window SWS DOS activated FS Not permitted Shall be ON SW6 Not used SW7 External PT1000 sensor Internal NTC sensor Temperature sensor FS SW8 NO NC FS Function terminal 23 UOI Choosing NC factory setting gives direct action on output UOI i e increasing signal longer pulses on increasing control output This setting is used when UOI is connected to a thermal actuator of type Regin RTAM 24 NC In the event of a power cut the valve will close Choosing NO gives reverse action on output UOI i e decreasing signal shorter pulses on increasing control output This setting is used when UOI is connected to a thermal actuato
89. t 152 100 To avoid Y2 and Y3 opening and closing frequently during switch over a saddle point is implemented Y2 will output 0 10 V linear when the controller output is 0 48 and Y3 will output 0 10 V linear when the controller output is 52 100 In the saddle point the outputs will always be 100 for Y2 and 0 for Y3 As an addition to the function described above it is possible to connect a CO sensor to RC C3DOC The output on Y3 will then be affected by either cooling demand or by the CO level rising too high The output from the function is linear between two user defined setpoints see figure below 100 20 default min flow at cool output for VAV control i Controller 100 0 0 4896 1 152 100 1 output i 1 1 LI LI 4 1 4 2 7 PUMA Y3 output VAV damper Y3 cooling demand CO2 reduction demand Maximum Cooling demand CO2 reduction demand 2 reduction demand 100 20 by default min flow at cool output for VAV control CO2 level 600ppm by default 800ppm by default CO2 level to start CO2 level when fully 4 7 The variable for the min limit of the VA V damper is the same as for the VA V damper in the VAV control ap
90. t is stated in parameter 24 if Y3 is configured as an analogue output When Y3 is configured as a Digital output including for C3 models or does not exist this parameter constitutes the Manual Auto mode for the forced ventilation 66 Manual Auto control of change over mode 2 0 Heat control 1 Cool control 2 Automatic change over depending on analogue sensor input or digital input 67 Heating output in manual mode 0 68 Cooling output in manual mode 0 69 Controller Modbus address Factory set 70 Parity but Modbus communication 2 0 No parity 1 Odd parity 2 Even parity 71 Modbus time out for character t1 5 in ms Should be 1 5 times a character 3 ms i e at least 2 ms 72 Answer delay in Modbus t3 5 in ms Should be 3 5 times a character i e at 5 ms least 5 ms 73 Selection of heating output function NO NC 0 0 NC Normally closed 1 NO Normally opened 74 Setpoint display at setpoint adjustment 0 0 offset is shown in the display 1 The active setpoint offset is shown in the display Heat or Cool is shown depending on whether heat or cool is active when entering the menu 2 Heat setpoint offset is shown in the display 3 Cooling setpoint offset is shown in the display 75 Sequence order for Y2 and Y3 0 0 Y2 activates before Y3 1 Y3 activates before Y2 76 Forced ventilation control function 0 0 Not active 1 Forced ventialtion at 100 output of heat or c
91. tExerciseInterval 21 23h Time in hours between exercise of heating actuators RC Setp X RegioCVCoolExerciseInterval 22 23h Time in hours between exercise of cooling actuators Not used in this model X 3 23 RC Setp X RegioAil X 3 24 State connected sensor on O Internal sensor 1 External room sensor 2 Change over sensor RC C3DOC C3DFCO 70 Part IV Signals Regio Midi manual Signal name Type Modbus Default Description address value RC Setp X RegioAi2 X 3 25 5 State the connected sensor at AI2 RC C3DOC RC C3FDOC Only RC C3DOC C3DFOC 0 None 1 4 No function 5 CO sensor 6 No function 7 0 100 OEM function 8 Flow calculation 9 0 10 V Not used in this model X 3 26 RC_Setp_X RegioDil X 3 27 3 State connected sensor on 1 Window contact 2 No function 3 Presence detector 4 Change over sensor RC C3DOC C3DFOC RC_Setp_X RegioDi2 X 3 28 2 State connected sensor on DI2 1 Window contact 2 Condensation detection 3 No function 4 Change over sensor RC C3DOC C3DFOC Not used in this model X 3 29 0 RC_Setp_X RegioUil X 3 30 State connected sensor on UII All models except RC C3DOC C3DFOC 0 None 1 Change over digital 2 Change over analogue Not used in this model X 3 31 34 RC Setp X RegioDol X 3 35 1 F 1 Fan speed 1 models 4 Forced ventilation 4 other models RC Setp X RegioDo2 X
92. terminals 33 and 40 C Closed contact indicates closed window See Table 9 87 4 28 Part Installation Regio Midi manual Terminal Designation Operation 40 C 24 V DC out common for DI and UI with digital function 41 AGnd Analogue ground reference for AI and UI with analogue function 42 A RS485 communication A 43 B RS485 communication B Table 8 I O connection terminals for models for fan control DIP switches only models without display The ON position is marked on the DIP switch ON OFF Comment SWA DL window contact CI Regin s condensation Function terminal 33 Closed contact indicates detector KG A FS DD CI closed window SWS Digital output for 24 V Analogue output for Function terminal 23 AC thermal actuator 0 10 V DC valve UOI actuator FS SW6 Digital output for 24 V Analogue output for Function terminal 24 AC thermal actuator 0 10 V DC valve 002 actuator FS SW7 External PT1000 sensor Internal NTC sensor Temperature sensor FS SW8 NO NC FS Function terminal 23 001 Choosing NC factory setting gives direct action on output UOI i e increasing signal longer pulses on increasing control output This setting is used when UOI is connected to a thermal actuator of type Regin RTAM 24 NC In the event of a power cut the valve will close Choosing NO gives reverse action on output UOI i e
93. th display or Regin s own bus system EXOline to communicate with a central SCADA system via RS485 They can also be configured for a specific application with Regin s software tool Regio tool Maxi RCP are 230 V AC freely programmable room controllers for handling all functions in a zone system The controllers are pre programmed but can be configured using Regio tool Different room units RU units with built in temperature sensor are connected to the controllers Maxi can be connected to standardised bus systems like Modbus or EXOline with communication via TCP IP or RS485 and integrated with a central SCADA system Using EXO4 Web Server all functions can be handled from a PC with Internet Explorer and no room units are needed This will help lower investments Regio has a modern design which enhances the indoor environment The design has been awarded the 2007 iF product design award which more than 1100 participants from over 30 countries compete for every year The contributions are judged by an international panel according to a large number of criteria The contest has been running for more than 50 years and is one of the most acknowledged design competitions in the world The Regio controllers have an appealing design and functionality They are suitable in buildings where you want optimal comfort and low energy consumption for example offices schools shopping centres airports hotels and hospitals The modular desig
94. ture rises above the setpoint 48 Part III Configuration Regio Midi manual On Off actuator cooling On when room temp On Off actuator cooling gt Cooling setpoint hysteresis Off when room temp lt Cooling setpoint 2 as default porcum i Hysteresis for cooling On Off 24 C Cooling setpoint On Off actuator heating On when room temp On Off actuator heating lt Heating setpoint hysteresis Off when room temp gt Heating setpoint Room temp 2K as default Hysteresis for heating On Off 24 C Heating setpoint Actuator exercise All actuators are exercised The exercise takes place at set intervals in hours FS 23 hours interval An opening signal is sent to the actuator for as long as the configured run time Then a closing signal corresponding to the length of the run time is sent and the exercise is finished On units with a display the exercise can be inactivated by setting parameters 36 and 37 to zero 0 Regio Midi manual Chapter 10 Actuators 49 Chapter 11 Fan control Manual control Auto control Fan stopped In controllers for fan control F models it is possible to control a fan at the following speeds Off Low speed Medium speed High speed Auto The fan speed in the Auto position depends on the controller output signal and the settings for each speed Fan speed control The fan can be manually controlled to work at any speed On models with display you pr
95. uators 48 Analogue values 77 Applications 6 Auto control 50 B BACnet signal types 76 BACnet signals 77 Basic setpoint 46 Binary values 79 Bypass 42 C Calculation of the active setpoint 46 Central command 45 Central control 45 CO sensor and VAV control 38 Communication 7 Configuration 15 Control modes 33 Cooling 35 Cooling Cooling 35 Heating 33 Heating or cooling via change over 34 Heating Cooling 34 Heating Cooling with VAV control 35 Heating Cooling with VAV control and forced supply air function 34 Heating Heating 33 Cooling 35 Cooling Cooling 35 D Device 80 Different operating modes 41 DIP switches 15 Display handling 56 Display indications 56 Display indications 56 E Exercise 49 F Fan control 50 Auto control 50 Fan stopped 50 Manual control 50 H Heating 33 Heating or cooling via change over 34 Heating Cooling 34 Heating Cooling with VAV control and forced supply air function 34 Heating Cooling VAV 35 Heating Heating 33 Holding register 75 INCREASE DECREASE buttons 56 Indications 55 Communication 55 Occupancy button 55 Inputs Analogue 77 Binary 78 Multistate 79 Installation 17 preparations 14 L Labels 14 Loop 79 M Manual control 50 Measurement and testing 19 Memory function on power failure 62 Modbus signal types 64 Modbus signals 66 Models 8 More information 5 Mounting 6 Multistate values 80 Occupancy button 45 55 Occupancy detector 4
96. upied setpoint offset is shown in the display 5 Cooling occupied setpoint offset is shown in the display 6 Average of heating and cooling setpoints offset is shown in the display State connected function on UO3 0 1 Forced vent digital 2 Analogue output OEM 3 None 4 Ordinary analogue output 5 None 6 Control of a EC fan RC C3 models RC Setp X RegioForced VentControlMode RC_Setp_X RegioUnitDIPresenceState X 3 1 3 54 55 Forced ventilation control function 0 Not active 1 Forced ventilation at 100 output of heat or cool 2 Forced ventilation at 100 cool output Operating mode at presence detection 011 3 Occupied 4 Bypass RC Setp I RegioBypassTime 1 3 120 min Time in Bypass mode RC_Setp_I RegioPresenceOffTime 1 3 10 min Disconnect timer with Occupancy Unoccupancy RC_Setp_I RegioPresenceOnTime I 3 0 min Switch on delay for Occupancy RC_Setp_I RegioCVHeatPeriodTime 1 3 60s Period time for heating actuators with thermal actuator RC_Setp_I RegioCVCoolPeriodTime 1 3 60 60s Period time for cooling actuators with thermal actuator RC_Setp_I RegioCVHeatRunTime 1 3 61 120 s Run time for heating actuators with increase decrease actuators RC_Setp_I RegioCVCoolRunTim Not used in this model I 3 X 3 62 63 67 120s Run time for cooling actuators with increase decrease actuators
97. with display the background lighting is not lit and only OFF is shown in the display Unoccupied Operating mode Unoccupied means that the room where the controller is placed is not used for an extended period of time for example during holidays or long weekends Both heating and cooling are disconnected and the fans are stopped within a temperature interval with configurable min max temperatures FS min 15 C max 30 C For controllers with display the background lighting is not lit but the current room temperature or setpoint depending on the configuration is shown in the display OFF is also shown in the display Stand by Operating mode Stand by means that the room is in an energy save mode and is not used at the moment This can be during nights weekends evenings etc The controller is prepared to change operating mode to Occupied comfort if someone enters the room presence The room temperature is controlled around the applicable heating and cooling setpoints with an extended temperature interval FS 3 C For example if the heating setpoint 22 C and the cooling setpoint 24 C the controller will allow the temperature in the room to be between 19 C and 27 C The setpoints can also be adjusted 3 C via the setpoint knob or the display For controllers with display the background lighting is lit dimmed STANDBY and the current room temperature or setpoint depending on the configuration are shown in the display
98. with us e g at technical support Contact one of our sales engineers to get access to the FTP server Regio Midi manual Chapter 1 About the manual 5 Chapter 2 Introduction to Regio Regio zone controllers Mini Midi Maxi Awarded design Applications Mounting Regio is a wide series of room controllers which handle everything from heating cooling and ventilation to lighting humidity monitoring and blinds Regio can be used for creating everything from stand alone systems for managing the functions in one room to large integrated systems with a comprehensive SCADA system Regio also offers web and Internet solutions Temperature and other functions in a room can be individually controlled from a PC connected to the office network The Regio controllers are divided into three different series Mini Midi and Maxi Mini RC are 24 V AC stand alone controllers for controlling heating and cooling in a room The series consists of different room control units and a relay box for fan control The control units are pre programmed to handle different functions and can easily be configured They have a built in temperature sensor but an external temperature sensor can also be connected The Midi controllers RC C have the same characteristics as Mini but can be used either as stand alone units or integrated into a system with communication The controllers are connected to bus lines such as Modbus BACnet only models wi

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