Samson 5476 - Manual

1.2 Operating modes Day mode (rated operation) Regardless of the programmed times-of-use, the set points relevant for rated operation are usedby the controller. Night mode (reduced operation) Regardless of the programmed times-of-use, the set points relevant for reduced operation areused by the cont...

1.3 Display During operation, the display indicates the current time as well as information about the opera-tion of the controller. The times-of-use are represented by black squares below the row of num-bers at the top of the display. Icons indicate the operating status of the controller. The contro...

1.4 Displaying data Measured values, set points, times-of-use, public holidays and vacation periods as well as tem-peratures of the connected sensors and their set points can be retrieved and displayed in the op-erating level. Proceed as follows: Select value. The various datapoints appear one after...

1.5 Setting the controller time The current time and date need to be set immediately after start-up and after a power failurelasting longer than 24 hours.The time is set in the parameter level. Proceed as follows: Switch to the parameter level.Display: Time, blinks Activate editing mode for the cont...

1.6 Setting the times-of-use Two times-of-use can be set for each day of the week. If only one time-of-use is required, thestart and stop times of the second time-of-use must be programmed to identical times. The times schedules are set for the required control circuits one after the other in the pa...

Select datapoint for times-of-use.Display: Activate editing mode for times-of-use.Display: 1–7 Select period/day for which the times-of-use are to bevalid:1–7 = Monday to Sunday1–5 = Monday to Friday6–7 = Saturday to Sunday1 = Monday, 2 = Tuesday, …, 7 = Sunday Activate editing mode for period/day.D...

1.6.1 Entering public holidays On public holidays, the times-of-use specified for Sunday apply. A maximum of 20 public holi-days may be entered.The public holidays are set in the parameter level.Set the function block FB6 = ON to make the programmed public holidays also apply to theDHW heating. Para...

Deleting vacation periods: Select the vacation period you wish to delete in the datapoint for vacation periods. Confirm selection. Select – – – – . Delete vacation period. 1.7 Correcting temperature set points The room temperature for the heating circuit can be adapted to the actually valid conditio...

Proceed as follows: Switch to the parameter level.Display shows: Time, blinks Switch to the configuration level.Display shows: Current system code number, blink. Select level displaying function blocks 0 to 23 or Select level displaying function blocks 24 to 47. Select function block. Activate editi...

2.3 Changing parameters Depending on the set system code number and the activated functions, not all parameters listedin the parameter list in the Appendix (–> section 12.2) might be available. Proceed as follows: Switch to the parameter level. Display shows: Time, blinks Select parameter. Activa...

2.5 Calibrating sensors The connected sensors are calibrated in the configuration level. The following applies: 4 FB16 = ON, select “P1000“: Pt 1000 and Pt 100 sensors 4 FB16 = ON, select “ntc“: NTC and Pt 100 sensors 4 FB16 = OFF: PTC and Pt 100 sensors (default setting) The resistance values of th...

Return flow sensor (RüF2) Solar circuit collector sensor (CF) Flow sensor (VF2) Storage tank sensor (SF1–SF2) Flow sensor in DHW circuit (VF3) Activate editing mode for sensor. Correct measured temperature.Read the actual temperature directly from the thermometer at the point of measure-ment and ent...

3 Manual operation Heating circuit and DHW circuit (Anl 9: underfloor heating circuit) can be set to manual modeat their operating mode selector switches. Heating circuit mode selector switch The heating circuit can only be set to manual mode when the DHW/underfloor heating circuitmode selector swit...

4 Systems 10 hydraulic schematics are available. System code number (Anl) 1 2 3 4 5 6 7 8 9 * 11 Heating Outdoor temperature dependent flow temperature control with variable return flow temperature limitation Mixing control • • • From the primary circuit • • • • From the secondary circuit • • • • • ...

System Anl 1 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 Systems 24 EB 5476 EN

System Anl 2 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = OFF Without SF2 Systems EB 5476 EN 25

System Anl 2, setting different from default setting · With switch valve Setting different from default setting: FB9 = ON, select “US“ FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = OFF Without SF2 Systems 26 EB 5476 EN

System Anl 2, setting different from default setting · With solar system Setting different from default setting: FB15 = ON, select “CF“ FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = ON, select “CF“ With SF2 Systems EB 5476 EN 27 Solar collector

System Anl 3 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = ON, select “---“ With SF2 FB27 = OFF Without VF3 Systems 28 EB 5476 EN

System Anl 4 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB21 = OFF Without RüF2 30 EB 5476 EN Systems

System Anl 4, setting different from default setting · With solar system Setting different from default setting: FB15 = ON FB13 = OFF Without RF FB15 = ON With SF2 FB20 = ON With RüF1 FB21 = OFF Without RüF2 Systems EB 5476 EN 31 Solar collector

System Anl 5 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = ON, select “---“ With SF2 FB21 = OFF Without RüF2 Systems 32 EB 5476 EN

System Anl 6 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 34 EB 5476 EN Systems

System Anl 7 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = OFF Without SF2 EB 5476 EN 35 Systems

System Anl 8 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = ON With SF2 FB27 = OFF Without VF3 36 EB 5476 EN Systems

System Anl 9 Default settings FB13 = OFF Without RF FB20 = ON With RüF1 FB14 = ON With SF1 FB15 = OFF Without SF2 EB 5476 EN 37 Systems

5 Functions of the heating circuit Which controller functions are available depends on the selected system code number (Anl). 5.1 Weather-compensated control When weather-compensated control is used, the flow temperature is controlled according to theoutdoor temperature. The heating characteristic i...

Function WE Configuration Outdoor temperature – Current input OFF FB18 = ON0: 0 to 20 mA = –20 to 50 °C4: 4 to 20 mA = –20 to 50 °C 5.1.1 Gradient characteristic Basically, the following rule applies: a decrease in the outdoor temperature causes the flow tem-perature to increase. By varying the Grad...

Parameters WE WE* Range of values Min. flow temperature 20 °C 20 °C 20 to 130 °C * Default setting applies to system Anl 9, floor heating 5.2 Fixed set point control During the times-of-use, the flow temperature can be controlled according to a fixed set point.Outside the times-of-use, this set poin...

5.4 Deactivation depending on outdoor temperature 5.4.1 OT deactivation value in rated operation If the outdoor temperature during rated operation exceeds the limit OT deactivation value in rated operation , the affected heating circuit is put out of service immediately. The valve is closed and the ...

Function WE Configuration Summer mode OFF01.0630.0918 °C FB3 = ONStart summer mode / 01.01 to 31.12Stop summer mode / 01.01 to 31.12Outdoor temperature limit / 0 to 30 °C 5.5 Delayed outdoor temperature adaptation The calculated outdoor temperature is used to determine the flow temperature set point...

have been activated.Refer to page 78 onwards for the wiring diagrams of the room panels. Functions WE Configuration Room sensor RF OFF FB13 = ON Potentiometer input 1 to 2 k Ω OFF FB24 = OFF 5.7 Optimization This function requires the use of a room sensor. Depending on the building characteristics, ...

5.8 Flash adaptation The function is only active in automatic mode ( ). Direct reactions to deviations in room temperature can be achieved using the function block set-ting: FB2 = ON. A gradient characteristic (FB19 = OFF) must be configured.Flash adaptation counteracts room temperature deviations b...

5.10 Pump management The Pump management function can be used for the heating circuit (circulation pump UP1). The binary outputs BA8 and BA9 should always be used to control the operation of this pump when-ever a speed-controlled pump is implemented in the heating circuit: 4 BA8 switches the pump on...

6 Functions of the DHW circuit 6.1 DHW heating in the storage tank system Start storage tank charging The controller begins charging the storage tank when the water temperature measured at sen-sor SF1 falls below the set point DHW heating ON or the temperature adjusted at the storage tank thermostat...

DHW heating from the primary circuit (Anl 4): The control valve opens depending on the DHW temperature from its closed position. Stop storage tank charging The controller stops charging the storage tank when the water temperature in the storage tankmeasured at sensor SF1 reaches the value T = DHW he...

6.2 DHW heating in the storage tank charging system Start storage tank charging The controller begins charging the storage tank when the water temperature measured at sen-sor SF1 falls below the set point DHW heating ON or the temperature adjusted at the storage tank thermostat: DHW heating from the...

6.3 DHW heating with solar system (Anl 2, 3, 4, 5 und 9) The systems Anl 2, 3, 4, 5 and 9 include a solar system for DHW heating. In these systems, thedifference between the temperatures measured at storage sensor SF2 and the sensor at the so-lar collector CF is determined. The Solar pump ON paramet...

6.5 Circulation pump operation during storage tank charging With the setting FB26 = ON, the circulation pump continues operation according to the pro-grammed time schedule even during storage tank charging.With the setting FB26 = OFF, the circulation pump is switched off as soon as the storage tankc...

Once a parallel pump operation cycle has been activated and the time for Stop parallel opera- tion has elapsed, system deviations greater than 5 °C cause the controller to suspend parallel operation for 10 minutes and to apply priority operation. Function WE Configuration Parallel pump operation OFF...

Set-back difference by set-back of the current flow temperature. The amount of time in which the priority for the DHW circuit is given is set in the Priority in case of deviation parameter. Function WE Configuration Priority forDHW circuit OFF10 min FB8 = ON, AbPriority in case of deviation / 2 to 1...

7 System-wide functions 7.1 Automatic summer time/winter time changeover The clock is automatically adjusted on the last Sunday in March at 2.00h and on the last Sundayin October at 3.00h. Function WE Configuration Summer time/winter time changeover ON FB5 = ON 7.2 Frost protection When outdoor temp...

The measured temperature reading (return flow temperature) and the set point reading (flowtemperature of the heating, charging temperature) blink to indicate that a return flow limitationis active in the control circuit concerned. In systems Anl 2, 3, 7, 8 and 9, the Return flow limita- tion tempera...

7.5 Condensate accumulation control Activate the Limitation of the system deviation for OPEN signal function to start up condensate accumulation plants, in particular to avoid problematic excess temperatures. The controller re-sponse to set point deviations which cause the primary valve to open is a...

7.7 On/off control The flow temperature can be controlled by an on/off signal. The controlled valve is openedwhen the flow temperature falls below the set point by T = 0.5 x Hysteresis . When the flow tem- perature exceeds the set point by T = 0.5 x Hysteresis , the control valve is closed. The grea...

Note! The function cannot be selected in systems Anl 4, 5 and 9 with solar system and in systemAnl 11 with VF3. 7.10 Flow rate/capacity limitation Flow rate/capacity limitation can be implemented based on a pulse or standardized signal of0/4 to 20 mA provided by the heat meter. This only applies in ...

Functions WE Configuration Current input for flow ratemeasurement OFF FB22 = OFF Flow rate or capacity limitation OFF500 pulse/h1.0500 pulse/h1.0 FB23 = ONMax. limit / 3 to 500 pulse/hLimiting factor / 0.1 to 10Max. limit for DHW / 3 to 500 pulse/hLimiting factor / 0.1 to 10 7.10.2 Limitation using ...

switches were set to “Night mode” or Heating circuit(s) deactivated” or “DHW heating un-changed”. Function WE Configuration Locking manual levels OFF FB34 = ON 7.12 Setting a customized key number Switch to the parameter level.Display shows: Time, blinks Switch to the configuration level.Display sho...

8 Operational faults Malfunctions or faults are indicated by the icon blinking on the display. 8.1 Sensor failure The following list explains how the controller responds to the failure of the different sensors.Safety functions such as frost protection and excess temperature protection no longer work...

8.3 Temperature monitoring Should a deviation arise in a control circuit that is greater than 10 °C for longer than 30 min-utes, the bit D12 is automatically set in the error status register. If this function is not required, configure FB36 = ON, select “steig“ and leave the input BE8unswitched. 8.4...

Example of a transfer to the control system: The error status register is transferred as a word <w> in a holding register (HR) whose value iscalculated as follows: <w> = D_0 + D_1 + … + D_15 = 2 0 + 2 1 + … + 2 15 9 Communication Using the serial system bus interface, the TROVIS 5476 Hea...

Functions WE Configuration Modem operation OFF8 bit30 min5 min5 minPULS– FB44 = ON8 bit/16 bitCyclical initialization In* / 0 to 255 minDialing pause to GLT PA* / 0 to 255 minModem timeout t 0 * / 0 to 99 min Dial procedure / PULS/tonPhone no. of control station GLT* Alternative recipient OFF5– FB46...

If you wish to use more than 32 devices in line or need to bridge greater distances, make surerepeaters (e.g. TROVIS 5482) are installed to replicate the signal. With 8-bit addressing, amaximum of 246 devices can be addressed and connected to a bus. Warning! You are required to follow the relevant s...

Modem time-out (t 0 ) When the controller connects to the GLT but without addressing a Modbus data point, the con-nection is closed after the time specified for Modem time-out has elapsed. If the error status reg- ister has not been read during the GLT connection, the controller dials up to the GLT ...

for details on which listed heat meters fulfill this criterion and can be used for limitation pur-poses.In case of battery-operated heat meters in particular, please note that some makes react withcommunication intervals if they are polled too frequently. Other makes could use up their bat-teries to...

Function WE Configuration Flow rate limitation OFF 2.0 m h 3 2.0 m h 3 2.0 m h 3 2.0 m h 3 1.0 FB30 = ONAt/---Maximum limit / 0.01 to 650 m h 3 Maximum limit for heating* / 0.01 to 650 m h 3 Maximum limit for DHW / 0.01 to 650 m h 3 Minimum limit/ 0.01 to 650 m h 3 Limiting factor / 0.1 to 10.0* Doe...

Parameter * WE Range of values * Parameter only needs setting with FB31 = ON, select “At“ 9.5 Memory module The use of a memory module (accessory no. 1400-7142) is particularly useful to transfer alldata from one TROVIS 5476 Controller to several other TROVIS 5476 Controllers. The memorymodule is pl...

EB 5476 EN 75 Installation Fig. 9 · Installation Panel mounting Wall mounting Top hat rail mounting Back of the controller 2 Controller housing 2 1 Dimensions in mm: W x H x D = 144 x 96 x 125

11 Electrical connection Caution! For electrical installation, you are required to observe the relevant electrotechnical regulationsof the country of use as well as the regulations of the local power suppliers. Make sure all electri-cal work is performed by trained and experienced personnel! Notes o...

Connecting the sensors Cables with a minimum cross-section of 2 x 0.5 mm² can be connected to the terminals at theback panel of the housing. Connecting the actuators Connect cables with at least 1.5 mm² suitable for damp locations to the terminals of the control-ler output. The direction of travel n...

FB Function WE Anl Comments 22 Current input for flow ratemeasurement OFF All FB22 = ON: Current input active Select: 0: 0 to 20 mA signal feedforwarding4: 4 to 20 mA signal feedforwarding A 50- Ω resistor must be connected to terminals 15 (+) and GND (terminals ½) in parallel to the current signalF...

Display Parameter designation Range of values (default values) Reduced room set point 0 to 40 °C (17 °C) Sustained temperature 0 to 40 °C (15 °C) Gradient of the heating characteristic, return flow 0.2 to 3.2 (1.2) Can only be set after entering the key number! Level, return flow –30 to 30 °C (0 °C)...

Display Parameter designation Range of values (default values) System Anl 9, underfloor heating circuit Gradient, flow 0.2 to 3.2 (0.8) Level, flow –30 to 30 °C (–5 °C) 4-point characteristic Press key to set parametersoutdoor temperature, point 1 to 4flow temperature, point 1 to 4. 4-point characte...

Display Parameter designation Range of values (default values) Times-of-use for underfloor heating circuit –> section 1.6 DHW heating DHW heating ON 20 to 90 °C (45 °C) With systems Anl 2, 3, 5, 7, 8, 9 and 11without solar circuit with a storage tank sensor SF1 Hysteresis 0 to 30 °C (5 °C) DHW he...

12.3 Sensor resistance tables Resistance values with PTC resistors Type 5224 Outdoor Temperature Sensors, Type 5264 and Type 5265 Flow and Return FlowTemperature Sensors, Type 5264 Storage Tank Temperature Sensors °C –20 –10 0 10 20 25 30 40 50 60 70 80 90 100 110 120 Ω 694 757 825 896 971 1010 1050...

12.5 Customer data StationOperatorRelevant SAMSON officeSystem code number Function block settings 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Function block parameter settings Function block parameters Range o...

Function block parameters Range of values Maximum limit (FB31= ON) 0.1 to 6000 kW Maximum limit for heating (FB31 = ON) 0.1 to 6000 kW Maximum limit for DHW (FB31 = ON) 0.1 to 6000 kW Limiting factor 0.1 to 10 Binary input BE8 in error status register (FB36 = ON) Rising/negative Binary input BE7 in ...

Parameters Range of values Return flow limitation temperatureduring DHW heating 20 to 90 °C Heat exchanger inlet temp. limit 20 to 130 °C Solar circuit pump ON 0 to 30 °C Solar circuit pump OFF 0 to 30 °C Solar charging OFF 20 to 90 °C Station address 11 to 247, 8 bitto 999, 16 bit Baud rate 150 to ...

Time schedules for DHW circuit and circulation pump DHW circuit Circulation pump Start – Stop (1) Start – Stop (2) Start – Stop (1) Start – Stop (2) Monday (1) Tuesday (2) Wednesday (3) Thursday (4) Friday (5) Saturday (6) Sunday (7) EB 5476 EN 105 Appendix Frequently used abbreviations AF Outdoor s...

I Installation Panel mounting. . . . . . . . . . . . . . . . . 74Top hat rail mounting . . . . . . . . . . . . 74Wall mounting . . . . . . . . . . . . . . . . . 74 Interface Meter bus. . . . . . . . . . . . . . . . . . . . . 70RS-232-C. . . . . . . . . . . . . . . . . . . . . 67RS-485 . . . . . . . ...

112 EB 5476 EN Fig. 11 · Level structure of TROVIS 5476 or Operating level (refer to section 1 for operation) or Parameter level (refer to section 2) or Configuration level (refer to section 2) 00:00 Temperatures Heating Time schedule Heating Public holidays and vacations Temperatures DHW Time sched...