Related Manuals for Siemens RDB160BN
Summary of Contents for Siemens RDB160BN
- Page 1 RDB160BN Room thermostat with BACnet MS/TP communication Basic Documentation A6V11917618_en--_b Smart Infrastructure 2020-03-18...
- Page 2 All rights created by patent grant or registration of a utility model or design patent are reserved. Published by: Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Phone: +41 58 724 5500 www.siemens.com/buildingtechnologies Edition: 2020-03-18 Document ID: A6V11917618_en--_b © Siemens Switzerland Ltd, 2020 2 | 52 A6V11917618_en--_b...
-
Page 3: Table Of Contents
Contents About this document ................. 5 Purpose of this document .................. 5 Revision history ....................5 Reference documentation .................. 5 Before you start ....................5 1.4.1 Copyright ....................5 1.4.2 Quality assurance ................5 1.4.3 Document use / request to the reader ..........6 Target audience, prerequisites ................ - Page 4 Disposal ....................48 Technical data ..................49 Index ........................51 4 | 52 A6V11917618_en--_b...
-
Page 5: About This Document
Purpose of this document 1 About this document 1.1 Purpose of this document This document provides detailed information on the functions of the RDB160BN BACnet MS/TP room thermostat as well as on mounting and installing, commissioning and operating the RDB160BN. -
Page 6: Document Use / Request To The Reader
Siemens assumes no liability to the extent allowed under the law for any losses resulting from a failure to comply with the aforementioned points or for the improper compliance of the same. -
Page 7: Overview
Overview 2 Overview The RDB160BN BACnet MS/TP room thermostats are used for the following types of system: ● Fan coils with On/Off, modulating or DC control outputs (electric heater only with On/Off output): – 2-pipe system – 2-pipe system with electric heater –... - Page 8 Factory setting is from 0 to 99. Baud rate The baud rate is selectable. Four options are available for the RDB160BN: 9600, 19200, 38400 and 76800 (default setting) bps. The RDB160BN BACnet MS/TP room thermostats are delivered with a fixed set of applications and related parameters.
-
Page 9: Functions
Temperature control 3 Functions 3.1 Temperature control The RDB160BN BACnet MS/TP room thermostat controls the room temperature with a built-in temperature sensor, an external room temperature sensor (QAA2012) or an external return air temperature sensor (QAP2012.150). It maintains the setpoint temperature by sending actuator control commands to the heating and/or cooling equipment. - Page 10 Functions Operating modes Comfort mode In Comfort mode, the thermostat maintains the Comfort setpoint temperature. The setpoint can be defined via parameter P64, locally adjusted via the Up/Down buttons or remotely selected via BACnet. Factory setting is 22 °C. The Comfort mode change can be delayed, typically used in combination with a presence detector: ●...
-
Page 11: Applications
Applications Overview 4 Applications 4.1 Overview The RDB160BN BACnet MS/TP room thermostats support the following applications. The applications can be configured using the local parameter setting or via the system. Applications, control outputs ● 2-pipe fan coil ● 2-pipe fan coil with ●... -
Page 12: Additional Functions
Applications Additional functions Possible output combinations 2-pipe 2-pipe with electric 4-pipe heater 1/2/3-speed DC 0…10 V 1/2/3-speed DC 0…10 V 1/2/3-speed DC 0…10 V Output #1 On/Off, PWM, 3-position, On/Off, PWM, DC 0…10 V On/Off, On/Off DC 0…10 V DC 0…10 V PWM, , PWM DC 0…10 V... - Page 13 Applications Additional functions External / return air temperature sensor The thermostat measures the room temperature with a built-in sensor, an external room temperature sensor (QAA2012) or an external return air temperature sensor (QAP2012.150) connected to a multifunctional input AI. Input AI must be commissioned accordingly. For detailed information about the input settings refer to chapter 'Multifunctional input, digital input [➙...
-
Page 14: Control Sequences
Control sequences Blocking a device during fire alarms The RDB160BN thermostat can be completely blocked during fire alarms. This function can only be activated via BACnet (Binary value, 9). If the current value has not been previously set to 0, the function forces the unit to OFF mode and prevents it from being reactivated. -
Page 15: 2-Pipe Fan Coil Unit
Applications Control sequences Parameter P02 = 0 P02 = 1 P02 = 2 Sequence T °C T °C T °C Available for basic Heating Cooling Automatic heating application ¹ / cooling changeover via external water = heating temperature sequence for el. sensor or remote switch heater... -
Page 16: 2-Pipe Fan Coil Unit With Electric Heater
Applications Control sequences Modulating control Control sequence modulating output, PWM, DC 0…10 V or 3-position: The diagrams below show the control sequence for modulating PI control. Heating and cooling mode Cooling mode Y [%] Y [%] T [°C] T [°C] T[°C] Room temperature Control command 'Valve' Room temperature setpoint... -
Page 17: 4-Pipe Fan Coil Unit
Applications Control sequences WARNING An electric heater must always be protected by a safety limit thermostat! 4.3.4 4-pipe fan coil unit Heating and cooling In 4-pipe applications, the thermostat controls two valves in heating and cooling mode. 4-pipe application is the default setting for parameter P01 (P01 = 03). -
Page 18: Chilled Ceiling With Radiator
Applications Control sequences 4.3.5 Chilled ceiling with radiator For chilled ceiling with radiator, set the corresponding basic application and disable the fan via parameter P25. The following applications are available: Application for Set basic Refer to chapter Sequences application chilled / heated ceiling, radiator Chilled / heated 2-pip... - Page 19 Applications Control sequences 4-pipe applications In 4-pipe applications, the Comfort setpoint (W) is in the middle of the dead zone, between the heating and cooling sequence. The dead zone can be defined via parameter P05. Comfort mode Standby (Economy) mode Application Heating and cooling Heating and/or cooling...
-
Page 20: Control Outputs
Product no. / 2-position (PWN DC 0…10 V 3-position Control output or On/Off) RDB160BN DO4, DO5 AO1, AO2 DO4, DO5 (2x Triac) AO2 is shared with DC 0…10 V fan and can be used for valve actuators only with 1-, 2- or 3-speed fan application. -
Page 21: Fan Control
Control outputs Fan control No exercises occur for electric heaters. In other words, the function does not impact an electric heater. DC 0...10 V signal AO1 and AO2 can be set as outputs, providing DC 0…10 V signal for modulating valves. -
Page 22: Fan Operation
Control type 1-/2-/3-speed DC 0…10 V selected via RDB160BN DO1, DO2, DO3 P77, P30 The type of fan output (DC 0...10 V, 1-, 2- or 3-speed) can be selected via local HMI using parameters P77 and P30 or via BACnet objects. - Page 23 Control outputs Fan operation NOTICE Fan operation in the dead zone (fan kick) must be changed to disable the fan operation. For detailed information about chilled / heated ceilings refer to chapter 'Chilled ceiling with radiator [➙ 18]'. Fan operation in dead zone (fan kick) In automatic fan mode and a room temperature within the dead zone, the control valve is normally closed, and the fan is at minimum speed.
-
Page 24: Multifunctional Input, Digital Input
Multifunctional input, digital input 6 Multifunctional input, digital input The thermostat has the following three multifunctional inputs: ● Analog input (AI) for: – External room temperature or return air temperature sensor – Supply air temperature limitation sensor ● Universal input (UI) for: –... -
Page 25: Type Summary
Type summary Equipment combinations 7 Type summary Type Order number Designation RDB160BN S55770-T426 RDB160BN BACnet Room Temp Controller 7.1 Equipment combinations Type of unit Product no. Datasheet Cable temperature or changeover QAP2012.15 N1831 sensor, cable length 1.5 m PT1000 Room temperature sensor PT1000... - Page 26 24 V, DC 0…10 V The documents can be downloaded at http://siemens.com/bt/download With PWM control, it is not possible to ensure exact parallel running of two or more thermal actuators. If several fan coil systems are controlled by the same room thermostat, use motorized actuators with On/Off or 3-position control.
-
Page 27: Communication
The MAC address must be unique within an MS/TP network. Baud rate The baud rate is selectable via parameter P62. Four options are available for the RDB160BN: 9600, 19200, 38400 and 76800 (default setting) bps. MS/TP Master The maximum number of master units can be set from 0 to 127. -
Page 28: Communication Objects
Communication Communication objects 8.2 Communication objects Analog inputs Object Object ID Description Unit Writeable name Analog input, 0 Room temperature °C TChover Analog input, 1 Change over °C temperature Analog input, 2 Analog input °C Analog input, 3 Analog input, 4 Supply air temperature °C Analog values Object... - Page 29 Communication Communication objects Object Object ID Description Unit Writeable name FanVarSpd Analog value, 28 Highest possible speed for the DC fan TChoverCool Analog value, 29 Cooling if lower °C changeover temperature TChover Analog value, 30 Heating if higher °C Heat changeover temperature RTHyst...
- Page 30 Communication Communication objects Object Object ID Description Values Writeable name Chover Binary value, 7 Indicates changeover Active / Status status from both inactive digital and analog input Not used Binary value, 8 Shdown Binary value, 9 Places the unit in Active / State 'OFF' mode and...
- Page 31 Communication Communication objects Multistate values Object Object ID Description Values Writeable name CclVlvPos Multistate Manual/Auto 1 = Off value, 1 cool 2 = Manual output output 3 = Automatic output FanSpdMod Multistate Fan mode select 1 = Off value, 2 2 = Manual speed 1 3 = Manual...
-
Page 32: Control Parameters
Communication Control parameters Object Object ID Description Values Writeable name ROpMod Multistate Room operating 1 = Off value, 5 mode Economy/Standb 3 = Not used 4 = Not used 5 = Comfort 6 = No remote control Multistate 1 = No active BtnCnf Buttons active value, 6... -
Page 33: Parameter Setting Via Local Hmi
Communication Control parameters 8.3.1 Parameter setting via local HMI Access parameter settings Press Up/Down buttons simultaneously for 5 seconds until 'Service' is displayed on the screen. Release and press Up button twice. Parameter P01 is displayed. Define parameters You can navigate through the parameter list using the Up/Down buttons. ●... - Page 34 Communication Control parameters Name Factory setting Range Economy heating setpoint 15 °C 10…40 °C Economy cooling setpoint 30 °C 10…50 °C P-band Xp/switching diff 10 K Integral action time Tn 300 s Hysteresis (ΔT) Controller hysteresis Delay from Comfort to Standby 0 min Delay from Standby to Comfort 0 min Input AI 0 = no function...
- Page 35 Communication Control parameters Name Factory setting Range Standard display 2 = Absolute 0 = Room setpoint temperature and absolute setpoint 1 = Room temperature and relative setpoint 2 = Absolute setpoint 3 = Relative setpoint Fan control in auto mode 3 = Heating and 0 = Disabled cooling...
- Page 36 Communication Control parameters Name Factory setting Range Normal position for DO4 1 = Normally 0 = Normally Closed Open 1 = Normally Closed Normal position for DO5 1 = Normally 0 = Normally Closed Open 1 = Normally Closed Manual/Auto heating output 2 = Auto 0 = Off signal...
- Page 37 Communication Control parameters Name Factory setting Range BACnet MS/TP, device id, the Lowest 4 digits of 4 lowest digits device ID, as per device label BACnet MS/TP, device id, the Highest 3 digits of 3 highest digits device ID, as per device label BACnet MS/TP, maximum 0…127...
- Page 38 Communication Control parameters Name Factory setting Range Supply air min. limitation for 12 °C 5…20 °C cascade control and cooling control Cascade factor between room 3 °C 1…5 °C controller and supply air controller Frost protection temperature 8 °C Heat valve open if for supply air when supply air the supply air temperature limitation is active...
-
Page 39: Connection Terminals
Connection terminals 9 Connection terminals SELV 10, 12, 13 L, N Operating voltage AC 230 V Digital input Ground Control output fan speed I AC 230 V Analog input Control output fan speed II AC 230 V Universal input Control output fan speed III AC 230 V Ground for SELV Control outputs 'Valve' AC 230 V AO1 Control outputs DC 0…10 V... -
Page 40: Connection Diagrams
– On/Off or PWM ● V1 = Heating ● V2 = Cooling Room thermostat RDB160BN S1, S3 Switch (keycard, window contact, presence detector) Fan (1-/ 2-/ 3- speed or DC 0…10 V) B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.) - Page 41 DC 0…10 V ● V1 = Heating ● V2 = Cooling 10 A Room thermostat RDB160BN S1, S3 Switch (keycard, window contact, presence detector) Fan (1-/ 2-/ 3- speed or DC 0…10 V) B1, B2 Temperature sensor (return air temperature, external room temperature, changeover sensor, etc.)
-
Page 42: Dimensions
Dimensions 11 Dimensions Figure 1: All dimensions in mm 42 | 52 A6V11917618_en--_b... -
Page 43: Mounting And Installation
Mounting and installation 12 Mounting and installation CAUTION Noncompliance with the following safety regulations Risk of injury to persons and damage to property ● Compliance with the following regulations is required. Mounting ● The devices are suitable for wall mounting. ●... -
Page 44: Commissioning
Commissioning 13 Commissioning Applications The BACnet MS/TP room thermostats are delivered with a fixed set of applications and related parameters. The relevant application is selected and activated during commissioning using the local HMI or commissioning tools for BACnet MS/TP. The factory settings can be changed by using the display and buttons on the controller. - Page 45 Commissioning The device goes to Comfort mode once all parameters are set. If you exit the wizard before it has finished setup, parameters are still accessible via standard access. For detailed information about parameters refer to chapter 'Control parameters [➙ 32]'. Setpoint and range limitation We recommend reviewing the setpoints and setpoint ranges (parameters P06, P07, P64) and changing them as needed to achieve maximum comfort and save...
-
Page 46: Operation
Operation 14 Operation General The room thermostat consists of two parts: ● Plastic housing with electronics, operating elements, room temperature, sensor and the screw terminals ● Mounting plate The two parts are separated in the box. No screws are needed to fix the housing on the mounting plate. Layout The display is operated using the buttons on the controller. - Page 47 Operation Display The display has the following indications: ˈAUTO/MANˈ: Automatic or manual mode indication for the fan Current fan speed (Low, Medium, High) Up/Down buttons to adjust setpoints and parameters Occupancy indication Current room temperature or setpoint in °C to one decimal point Open window ˈCOOL/HEATˈ: Shows the...
- Page 48 Disposal 15 Disposal The device is considered an electronic device for disposal in accordance with the European Guidelines and may not be disposed of as domestic garbage. ● Dispose of the device through channels provided for this purpose. ● Comply with all local and currently applicable laws and regulations.
- Page 49 Technical data 16 Technical data General Operating voltage 230 V AC ±10 % Frequency 50/60 Hz Power consumption 3 W, class II construction Built-in temperature sensor NTC type, measuring range 0...50 °C Terminal blocks Lift type for max. cable area 2.1 mm No internal fuse! External preliminary protection with max.
- Page 50 1x 0.4…2.5 mm 2x 0.4…1.5 mm Minimal wiring cross section on Min. 1.5 mm terminals Housing front color White RAL 9010 Weight without packaging 0.18 kg The documents can be downloaded at http://siemens.com/bt/download 50 | 52 A6V11917618_en--_b...
- Page 51 Index Index Comfort mode ............10 OFF mode ............. 10 Applications Standby (Economy mode) ......... 10 2-pipe ..............15 2-pipe with electric heater ......... 16 Proportional band ..........9 4-pipe ..............16 Chilled ceiling with radiator ....... 17 Overview ..............11 Setpoint Automatic heating / cooling changeover ..
- Page 52 © Siemens Switzerland Ltd, 2020 Issued by Siemens Switzerland Ltd Technical specifications and availability subject to change without notice. Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug +41 58 724 2424 www.siemens.com/buildingtechnologie A6V11917618_en--_b...