Siemens RVD240 - Software Version

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Siemens Building Technologies Basic documentation RVD240 CE1P2384en

HVAC Products 25 Function block Test and display 27.05.2004

In general: The maximum limitation functions will be activated when the respective de-

mand for temperature (not the actual value!) exceeds the limit value.

25.8 Software version

The software version is displayed on operating line 170. It is important for service staff

when making fault diagnoses.

Main Page

Default Chapter3
- Table of Contents3
1 Summary13
- Brief Description and Key Features13
- Type Summary13
- Equipment Combinations13
- Suitable Sensors13
- Suitable Room Units14
- Suitable Valve Actuators14
- Communication14
- Documentation14
2 Use15
- Types of Plant15
- Types of Houses and Buildings15
- Types of Heating Systems15
- Heating Circuit Functions15
- Functions16
- Auxiliary Functions16
3 Fundamentals18
- Key Technical Features18
- Function Blocks18
- Plant Types18
- Operating Modes22
- Heating Circuit Control22
- Heating23
- Manual Operation23
- D.h.w. Heating23
4 Acquisition of Measured Values24
- General24
- Flow Temperature Heating Circuit24
- Types of Sensors24
- Handling Faults24
- Outside Temperature (B9)24
- Room Temperature (A6)25
- Types of Sensors25
- Handling Faults25
- Room Model25
- Temperature (B3)25
- Measured Variable25
- Handling Faults26
- Storage Tank Temperature (B31)26
- Measured Variable26
- Types of Sensors26
- Storage Tank or Return Temperature (B32)26
- Handling Faults27
- Return Temperature (B7, B71 and B72)27
- Measurement27
- Types of Sensors27
5 Function Block Space Heating28
- Operating Lines28
- Settings and Displays28
- Heating Program29
6 Function Block Clock Settings30
- Operating Lines30
- Entries30
7 Function Block End-User D.h.w31
- Operating Lines31
- Heating Program31
- Adjustment of Setpoints31
8 Function Block Display of Actual Sensor Values32
- Operating Lines32
- Displays32
9 Function Block Holiday Settings33
- Operating Lines33
- Holiday Program33
10 Function Block Indication of Errors34
- Operating Line34
- Indication of Errors34
11 Function Block Plant Configuration35
- Operating Lines35
- Parameters to be Set35
- Plant Type35
- Input B71 / U135
- Circulating Pump36
- Input H536
- Control of Variable Speed Pump36
12 Function Block Space Heating40
- Operating Lines40
- Compensating Variables40
- Outside Temperature40
- Room Temperature41
- Heating Curve42
- Generation of Setpoint43
- Display of Setpoint43
- Setpoint of Weather-Compensated Control43
- Setpoint of Room-Compensated Control44
- Setpoint of Weather-Compensated Control with Room Influence44
- Heating Circuit Control45
- Weather-Compensated Control45
- Room-Compensated Control45
- Weather-Compensated Control with Room Influence45
- Automatic ECO Function46
- Fundamentals46
- Compensating Variables and Auxiliary Variables46
- Heating Limit47
- Mode of Operation of ECO Function 147
- Mode of Operation of ECO Function 247
- Pump Overrun47
- Maximum Limitation of the Room Temperature47
- Optimization48
- Definition and Purpose48
- Fundamentals48
- Process49
- Room Model Temperature49
- Optimum Stop Control50
- Quick Setback50
- Optimum Start Control50
- Maximum Rate of Flow Temperature Increase51
- Frost Protection for the Building51
- General51
- Mode of Operation with Room Sensor51
- Mode of Operation Without Room Sensor51
- Protective Functions52
- Pump Kick52
- Valve Kick52
- Shutdown of Pump52
- Pump and Mixing Valve Overrun52
13 Function Block Valve Actuator of Heat Converter54
- Operating Lines54
- Mode of Operation54
- Control Process54
- Maximum Limitation of the Flow Temperature54
- Minimum Limitation of the Flow Temperature54
- External Heat Demand at Input H555
- External Heat Demand at Input U155
14 Function Block Valve Actuator Heating Circuit56
- Operating Lines56
- Mode of Operation56
- Control Process56
- Maximum Limitation of the Flow Temperature56
- Minimum Limitation of the Flow Temperature57
15 Function Block D.h.w. Heating58
- Operating Lines58
- Release of D.h.w. Heating58
- Control of the Circulating Pump59
- Switching Differential of D.h.w. Control59
- Legionella Function59
- Priority of D.h.w. Heating59
- General59
- Absolute Priority60
- Shifting Priority60
- No Priority61
- Pump Overrun61
- General61
- Intermediate Circuit Pump61
- Storage Tank Charging Pump61
- Frost Protection for D.h.w62
- Switching D.h.w. Heating off62
16 H.w. Heating63
- Heating with Storage Tanks63
- General63
- Maximum Charging Time63
- Manual Storage Tank Heating63
- Forced Charging63
- Protection against Discharging64
- Protection against Overtemperatures64
- Storage Tank with Electric Immersion Heater64
- Heating with Stratification Storage Tank64
- General64
- Heating65
- Feeding the Circulating Water into the Heat Exchanger65
- Direct D.h.w. Heating65
- General65
- Protection against Cooling down66
- Siting the Sensors66
- Flow Switch67
- Compensation of Heat Losses through Control67
- Cold Water Sensor68
17 Function Block Extra Legionella Functions69
- Operating Lines69
- Legionella Function69
- Setpoint69
- Time69
- Dwelling Time69
- Operation of Circulating Pump70
- Maximum Limitation of the Return Temperature70
- Mode of Operation70
18 Function Block Valve Actuator D.h.w72
- Operating Lines72
- Mode of Operation72
- Control Process72
- Setpoint Boost72
- Charging Boost73
- Flow Temperature Boost73
- Maximum Setpoint of the D.h.w. Temperature73
- Charging with Two Storage Tank Sensors73
- Adjustable Load Limit73
- Adjustment to the Time of Year73
- Load Limit74
- Child-Proofing74
19 Function Block Assignment of D.h.w75
- Operating Line75
- Assignment of D.h.w. Heating75
20 Function Block LPB Parameters76
- Operating Lines76
- LPB Parameters76
- Addressing the Devices76
- Source of Time of Day76
- Bus Power Supply77
- Outside Temperature Source77
21 Locking Signals78
- Fundamentals78
- Critical Locking Signals78
- Uncritical Locking Signals78
- General78
- Controller-Internal Uncritical Locking Signals79
- Uncritical Locking Signals from the Data Bus79
22 Function Block Device Functions80
- Operating Lines80
- Actuator Pulse Lock80
- Frost Protection for the Plant80
- Principle80
- Mode of Operation with Outside Sensor80
- Mode of Operation Without Outside Sensor81
- Frost Protection for the Heating Circuit Flow81
- Flow Alarm81
- Heating Circuit and D.h.w. Circuit with Storage Tanks81
- Direct D.h.w. Heating Via Heat Exchanger82
- Winter- / Summertime Changeover83
23 Function Block M-Bus Parameter84
- Operating Lines84
- General84
- Addressing and Identification84
- Baud Rate84
- Load Management84
- Load Management of D.h.w84
- Load Management of the Heating System84
- Resetting the Load Control Signals85
- Use on the LPB85
- Resolution of M-Bus Signals85
24 Function Block PPS Parameter86
- Operating Lines86
- Suitable Devices86
- Impacts of a Room Unit on the Heating Circuits86
25 Function Block Test and Display87
- Operating Lines87
- Sensor Test87
- Setpoint Test87
- Relay Test88
- Display of the Pump Speed88
- Display of the Digital Inputs88
- Limitations89
- Software Version90
26 Function Block DRT and Maximum Limitation of the Return Temperature91
- Operating Lines91
- Maximum Limitation of the Primary Return Temperature91
- General91
- Maximum Limitation in Heating Mode92
- Maximum Limitation in D.h.w. Mode92
- Maximum Limitation of the Secondary Return Temperature93
- Maximum Limitation of the Temperature Differential (DRT Function)94
- Mode of Operation94
- Purpose94
- Integral Action Time of the Limitation Functions94
27 Function Block Various Functions95
- Operating Lines95
- Limitation Function at Contact H595
- Suppression of Hydraulic Creep96
- Mode of Operation96
- Raising the Reduced Room Temperature Setpoint96
28 Function Block Operation Locking Functions98
- Operating Lines98
- Locking Settings on the Software Side98
- Locking of Setting Level "Locking Functions" on the Hardware Side98
29 Combination with PPS Devices99
- General99
- Combination with Room Unit QAW5099
- Overriding the Operating Mode99
- Knob for Room Temperature Readjustments100
- Controller with Operation Lock100
- Combination with Room Unit QAW70100
- General100
- Overriding the Operating Mode101
- Knob for Readjusting the Room Temperature101
- Impact of the Individual QAW70 Operating Lines on the RVD240101
- Controller with Operation Lock102
- Entry of Holiday Periods102
- Room Temperature Sensor QAA10102
30 Manual Operation103
31 Handling104
- Operation104
- General104
- Analog Operating Elements105
- Digital Operating Elements105
- Controller in "Nonoperated State106
- Safety Concept106
- Setting Levels and Access Rights106
- Commissioning107
- Installation Instructions107
- Operating Lines107
- Installation107
- Mounting Location107
- Mounting Choices107
- Electrical Installation108
32 Engineering109
- Connection Terminals109
- Relays110
- PWM Output110
- Lightning Protection in M-Bus Plants110
- Connection Diagrams111
- Low-Voltage Side111
- Mains Voltage Side111
33 Mechanical Design112
- Basic Design112
- Dimensions112
34 Technical Data113

Siemens RVD240 - Software Version

Table of Contents

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