BAS 918S/929S. Manual. BA Systems Petershvilevej 1 DK-3200 Helsinge

Transcription

1 BAS 918S/929S BA Systems Petershvilevej 1 DK-3200 Helsinge

2 Table of content Introduction... 3 Materials included... 4 Product mount... 5 Installation... 6 Terminals description... 9 Functional description Option Module connection Modbus BACnet BAS918S configuration BAS929S configuration Scheme list Scheme introduction Scheme 1, Central heating Scheme 2, Central heating and Hot water tank Scheme 3, Central heating with Heat Exchanger Scheme 4, Central heating with Heat Exchanger and Hot water tank Scheme 5, Dual Central heating Scheme 6, Dual Central heating with Heat Exchanger Basic Controller operation Menu structure Scheme selection Scheme activation Regulation mode Scheme setup Info Screen Watch Screen Setup for IP access BA Systems Petershvilevej 1 DK-3200 Helsinge 2

3 Introduction: Thank you for choosing a BAS 918S/929S controller. Please make sure that you have received the correct controller version and all the materials included. The difference between the two controllers are only the supported I/O. Please look at the following illustrations. The controller is scheme-based. This means that a set of preinstalled control schemes may be selected. Each scheme is shown as a process diagram named Scheme. The installation to be used is the selected. Once a scheme has been selected it can be customized. Please see the description of the different schemes later in this manual. On the next pages in this manual you will be guided through the physical installation and maneuvering the single button user interface. Technical data Power supply 24VAC/DC or 240VAC Power < 6W Thermal Storage -20 C to +70 C Operational -10 C to +60 C Humidity Mechanical Real time clock User interface Max. 90% RH, on condensing ABS/PC, IP x x 53 mm 570 g ±12 minutter pr year at 20 C. The RTC can run more than 1 year without power applied. Can be adjusted over the IP (ethernet) connection, either directly or through the SCADA system. 3.5 inch colorscreen and two-way scroll wheel with pushbuttom select. Digital outputs Analog outputs Analog inputs Communication Digital inputs Solid state relay BAS918S: 6 channals BAS929S: 11 channels Max 1A ved 240VAC/DC, must be protected against inductive loads. BAS918S: 2 channals BAS929S: 4 channals Port 1..4: 0/2-10VDC Port 3,4:, 0/4..20mA BAS918S: 8 channals BAS929S: 10 channals Port 1..10: ohm () Port 1,3,5,7,9,10: 0/2-10V Port 9,10:0/4-20 ma DC Port 9,10: ohm (TC) 10/100 Mbit ethernet USB-Host or USB-Device Optional internal module: KX, O, MBUS, WMBUS eller RS485 4 x potential free contacts or max 12VDC. BA Systems Petershvilevej 1 DK-3200 Helsinge 3

4 Materials included: 1. Produkt socket 2. Produkt front 3. 4 pcs. of, 3.9mm x 32 mm screws for wall mount 4. Cable relief bracket for cable retention at socket 5. 2 pcs. of 3.0mm x 8 mm screws for cable relief bracket mounting (4) BA Systems Petershvilevej 1 DK-3200 Helsinge 4

5 Product mount: The socket (1) may be wall mounted using 4 screws (3). Cable insertion may be done form behind into the socket or from the connector end of the front. See illustration below. screw (3) screw (3) Cut out area when cables inserted from behind Cut out area when cables inserted from this end screw (3) screw (3) Cable relief bracket Use a sharp knife to cut the plastic along or within the lines of the markings. When cutout is made in the connector end of the front, cables are inserted here and may be retained in the socket using the cable releif bracket. BA Systems Petershvilevej 1 DK-3200 Helsinge 5

6 Installation: Generic socket connections are defined in placement and function in the following drawings and descriptions. This indicates the maximum I/O configuration for the BAS9XXS controller. Please note that the variant you have bought may have reduced configuration. BA Systems Petershvilevej 1 DK-3200 Helsinge 6

7 Controller profile: BA Systems Petershvilevej 1 DK-3200 Helsinge 7

8 Controller front: Dimensions for wall mount are indicated from above drawing. BA Systems Petershvilevej 1 DK-3200 Helsinge 8

9 Terminal descriptions: Terminal label 240VAC 24VAC/DC DOX (1-11) DIX (1-4) DICOM STPB Definition 2 terminals = ul = phase (ine) 100V-240V AC, 50Hz or 60Hz 2 terminals = ul / DC- = fase / DC+ 24VAC, 50Hz - 60Hz or 24VDC, minimum 10W 2 terminals per I/O channels, Electronic relay. o polarization required. Potential free contact inputs with one common terminal (DICOM) to be used in relation with each DIX terminal. 4 terminals for Stepper motor connection, maximum 4W drive capability. Up to 24V drive. otes Power supply. May be substituted by 24VAC or 24VDC When connected, 240VAC is disconnected in the controller internally. May supply 24VDC/4W when 240VAC is sourcing power. AC or DC maximum 1A maximum 1A 3750V Rms isolation DICOM is a 5V DC voltage, sourcing maximum 50mA out. Protected against voltage inputs up to +75V peak. AC voltage protection only by resistive fuse. 24VAC/DC power supply for extended drive capability. Max 20W pr channal. STPA Secondary Stepper motor connection. As above. 2 terminals combined with AO current output capability. ot coexisting, i.e. controller mounted with either AO current output or second stepper motor capability OPX (1-3) 3 terminals for communication module support Module to be mounted from factory and must be ordered when the controller is ordered. Modules available: MBUS RS485 KX O WMBUS AOX (1-4) AIX (1-10) 2 terminaler for each analog output channel. Must be polarized as indicated by + and signs. Output type 0/2-10V with max 10mA load 0/4 20mA current loop, channel 3 and 4 only, combined with Stepper motor output A. 2 terminals for each I/O channel. Must be polarized as indicated by + and signs. Capability per I/O number: Channel 1..10: ohm () Channel 1,3,5,7,9,10: 0/2-10V Channel 9,10:0/4-20 ma DC Channel 9,10: ohm (TC) When using current mode the terminal is still to be used at the primary terminal block. Protected against reverse polarity and input voltages up to 40V Protected against reverse polarity and input voltages up to 40V. BA Systems Petershvilevej 1 DK-3200 Helsinge 9

10 Functional description: Power supply The Controller is supplied by the terminals 240VAC, accepting 90VAC-264VAC, 50Hz - 60Hz. or By the terminals 24VAC/DC, accepting 24VAC/50Hz/10% and alternatively 24VDC/25%. If both power inputs are connected, the internal circuit will select the 24V source. The 240V source is then disconnected internally.when 240VAC supply is used, the 24V pin set will output 24V DC. Maximum power output is 4W. In the center of the controller socket, 2 set of 10 pole terminal blocks are placed. By default all terminals in each block has been shorted by a mounted shorting circuit (alternative circuits can be ordered). The intension with this is to assemble ul (-) and Phase (+) connections internally distributing connections from here. Only one supply line into the controller is then required. Alternative use will also apply. Digital outputs All ports are galvanic isolated from other channels as well as from the internal controlling circuit. The circuit for one output (2 signal wires) is an Electronic relay, which may connect AC or DC signals. This relay will apply a voltage drop of approximately 1V in closed state. When operating a digital signal, this 1V drop may corrupt the signal level interpretation. In this case a secondary relay must be inserted. Please see visualization below. Circulation Pump BAS9XXS COTROER 0-10V RU 0 "DO" REAY COECTED HAS 1V DROP OVER THE TERMIAS DOXB DOXA. DO2B DO2A D01B D01A Circulation Pump BAS9XXS COTROER 0-10V RU VAC/DC DOXB DOXA. DO2B DO2A D01B D01A SECODARY REAY 0V BA Systems Petershvilevej 1 DK-3200 Helsinge 10

11 Digital inputs Intended for use as potential free contacts. A change in contact state can be measured, as well as pulses from repeated state change, can be counted (from metering devices). Maximum puls counting frequency is 25Hz. All inputs are galvanic connected, but isolated from the internal controlling circuit. Typical connection seen below. Connect to DICOM POTETIA FREE COTACT Connect to DI(X) If more potential free contacts are to be mounted, one wire from each must be connected to the DICOM terminal. BAS9XXS COTROER Connect to DICOM DICOM POTETIA FREE COTACT 1 POTETIA FREE COTACT 2 POTETIA FREE COTACT 3 POTETIA FREE COTACT 4 Connect to DI4 Connect to DI3 Connect to DI2 Connect to DI1 DI4 DI3 DI2 DI1 Analog inputs Please note the different configuration capabilities for each individual channel. More information is seen on page 9. All channels are galvanic interconnected as well as connected to the internal controlling circuit. An advantage of this is that there is only one common reference. 5 WIRE CABE As shown above, a 5 wire cable is sufficient for connection to 4 pcs of thermal sensors. Please note though, that sensor calibration is recommended because of increased voltage drop over the common reference. BA Systems Petershvilevej 1 DK-3200 Helsinge 11

12 Analog input continued ote: It is not recommended to use a reference shared for sensor signals as well as for Pumps, Valves or Motor loads. Also, current loop analog input signals must have a dedicated reference connection. Analog inputs configured for voltage measurements may have common reference. When connecting 4 x, 2 x 0/4mA-20mA, 2 x 0/2V-10V minimum 12 wires will be required. 12 WIRE CABE 4-20mA 4-20mA 0-10V 0-10V If one cable is used for analog signals mixed with supply wires for pumps, valves or motors, it may be necessary to use twisted pair cables to suppress noise. In this case each analog input must have a specific reference wire twisted with the + analog input wire. Example, connecting Pressure Transmitter: 24V SUPPY - + BAS9XXS COTROER PRESSURE TRASMITTER TERMIAS 24VAC/DC 0V 0-10V 4-20mA SUPPY COECTED AT THE OAD, TO AVOID DISTURBIG THE AAOG MEASUREMET AI(X)- AI(X)+ BA Systems Petershvilevej 1 DK-3200 Helsinge 12

13 Analog outputs BAS918S includes 2 channels, and BAS929S 4 channels. See table page 9. All channels are galvanic interconnected as well as connected to the internal controlling circuit. Channal 3 and 4 has voltage output on one set of terminals (AO{X}) and current loop on another set (AO{X}_I). See page 15. The signal reference for 3 and 4 for voltage as well as current loop terminals are located on AO3- and AO4-. For inspiration see the following example. Example, Motor Valve connection: 24V SUPPY BAS9XXS COTROER + - MOTOR VAVE 24VAC/DC 0V COTRO 0-10V POSITIO 0-10V AO(X)- AO(X)+ AI(X)+ REFERECE VOTAGE FOR AAOG IPUTS AD AAOG OUTPUTS ARE COECTED I THE COTROER, SO OE REFERECE WIRE IS SUFFICIET Stepmotor output ports Is not available on the current versions of the BAS9XXS controllers. Please contact the supplier for more information. BA Systems Petershvilevej 1 DK-3200 Helsinge 13

14 Option modules The controller may have an internal module mounted, enalbing different communication interfaces over the OP terminals or communicating wireless with an antenna mounted. Currently the following modules are available 1. RS MBUS 3. Wireless MBUS (OMS) 4. O 5. KX Cabled interfaces are all, except module 3, using OP1-3 terminals, see below. Only authorized personel may do module mounting, So when requesting this option, the controller must be ordered with this included, from the supplier. Connection: For cabled bus interfaces, below modules may be mounted. MBUS RS485 KX O As described previously, the terminals OP1-3 are used for connection. Below wiring table defines how to connect. Terminal label MBUS RS485 KX O OP1 BUS PUS A (PUS) BUS + ET A OP2 - GD KEY (Short to - BUS- for configuration mode) OP3-24V (BUS MIUS) B (MIUS) BUS - ET B Bus interfaces with differential signaling (all except MBUS) must use twisted pair cabling. One pair for a bus interface, RS485, KX or O. BA Systems Petershvilevej 1 DK-3200 Helsinge 14

15 MODBUS Available parameters are shown for each controlling scheme. The controller may be configured for Modbus/RTU via TCP/IP, or if a RS485 module is mounted, Modbus/RTU via RS485. Communication parameters are 19200,n,8,1. Bus ID and Bus impedance termination may be set in the controller information menu. For each scheme, a specific modbus parameter list is defined, The information is to be interpreted according to below: Holding Register Fcn 3/6 x10 Fcn 3/6 x1 Input Register Fcn 4 x10 Fcn 4 x1 The register to be addressed, read or write Modbus Holding register read/write. The value must be divided by 10 to get the physical value. I.e. 136 correlates to Remember to multiply by 10 if a value is to be written into the controller register. As above without any scaling The register to be read from Modbus Input register read. The value must be divided by 10 to get the physical value. I.e. 97 correlates to 9.7 As above without any scaling BACnet Available parameters are shown for each controlling scheme. The controller is always using BACnet port BAC0/47808 and is given the name BAS9XXS Device. The controller ID can be configured by the menu system, operated through the scroll button. The ID is by default set to 1. BA Systems Petershvilevej 1 DK-3200 Helsinge 15

16 BAS 918S configuration: BA Systems Petershvilevej 1 DK-3200 Helsinge 16

17 BAS 929S configuration: BA Systems Petershvilevej 1 DK-3200 Helsinge 17

18 Scheme list: For every controlling scheme loaded into the controller, the following sections will define a process diagram, cabling according to this and a description of Modbus parameters available. The list below defines available schemes: 1. Central heating 2. Central heating and Hot water tank 3. Central heating with Heat Exchanger 4. Central heating with Heat Exchanger and Hot water tank 5. Dual Central heating 6. Dual Central heating with Heat Exchanger BA Systems Petershvilevej 1 DK-3200 Helsinge 18

19 Scheme introduction: Outdoor sensor Is a global parameter, defined as When connected to one controller, the value will be available for all controllers in the network (same IP segment). ocal sensor fault, will be compensated by using a sensor available in the network. If no local sensor fault, the local sensor value will be used. Sensor fault will only be displayed if neither local nor global sensor are detected. Only one outdoor sensor is required for an installation. Scaling For metering applications, a conversion factor must be defined. This is called scaling. So when a controlling scheme is selected, a scaling factor may be requested before it can be actvated. Important: Scaling setup for the controller and the metering unit must be identical. Water metering Water metering in the following control scemes is optional. Scheme selection therefore includes of water metering on or off selection. Symbol description Symbol Description Flow meter Modulation control valve Outdoor sensor Gate valve Pump Temperature sensor Hot water tank with sensor Heat exchanger Pressure transmitter BA Systems Petershvilevej 1 DK-3200 Helsinge 19

20 Scheme 1, process diagram: Central heating (CH) DI1 AI1 DO1 AI2 AO1 AI3 BAS918S or BAS929S BA Systems Petershvilevej 1 DK-3200 Helsinge 20

21 Terminals for PHASE connection Terminals for U connection E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 1, wiring diagram: 240VAC installation Circulation pump Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve Return Forward Out door 240VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. Above wiring assumes that the components Circulation pump and Motor valve is to be supplied by 240VAC. BA Systems Petershvilevej 1 DK-3200 Helsinge 21

22 Terminals for PHASE connection Terminals for U connection E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 1, wiring diagram: 24VAC or 24VDC installation Circulation pump Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve Return Forward Out door ote: 24VAC label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. 24VAC as well as 24VDC may be used as supply. Above wiring assumes that Circulation pump and Motor valve is selected to support the same supply as the controller. BA Systems Petershvilevej 1 DK-3200 Helsinge 22

23 Scheme 1, description: Central heating control Basic The control topology for central heating is a mixing loop with outdoor compensation of incoming flow. Return limiter control is supported and may be enabled when controlling scheme is selected. Regulation The incoming flow is controlled by the motor valve. Regulation is from 0 100%. The incoming flow is then regulated in relation to the outdoor, also called climate compensation, defined as follows. Outdoor Values in C Forward At daytime, the circulation pump is stopped when the exceeds 20 C. The pump is reactivated if the drops below 18 C. At nighttime, the circulation pump is stopped above 18 C and reactivated below 16 C. Regulation stop is achieved by shutting of the motor valve and stopping the circulation pump. These are all default values that may be changed Default activation: The circulation pump is activated once every 24 hours if no other regulation is detected. The valve for regulation is likewise activated once every 24 hours if no other regulation is detected. BA Systems Petershvilevej 1 DK-3200 Helsinge 23

24 Scheme 1, Modbus parameter list: Description Data format Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 Central heating Summer daytime Setpoint 1 x Vinter daytime Setpoint 2 x Summer nighttime Setpoint 3 x Vinter nighttime Setpoint 4 x Forward temp at -20 C outdoor temp. 5 x Forward temp at -15 C outdoor temp. 6 x Forward temp at -10 C outdoor temp. 7 x Forward temp at -5 C outdoor temp. 8 x Forward temp at 0 C outdoor temp. 9 x Forward temp at 5 C outdoor temp. 10 x Forward temp at 10 C outdoor temp. 11 x Forward temp at 15 C outdoor temp. 12 x Forward temp at 20 C outdoor temp. 13 x ight compensation 14 x ight compensation until this 15 x o night compensation below this 16 x Forced displacement 17 x Forced displacement reset time (seconds) 18 x Return maximum 19 x Set state (0:Auto, 1:Stop, 2:Start) 20 x Return limiter forced set point 1 x Pump state (0:Off,1:On) 2 x Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) 3 x Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) 4 x Values measured Out door sensor 5 x Forward 6 x ot used (returns 0) 7 x Return 8 x Motor valve position i percent 9 x Pump Stop/Start 10 x fcn 4 x1 BA Systems Petershvilevej 1 DK-3200 Helsinge 24

25 Scheme 1, BACnet parameter list: Description Analog Value Analog Input Data format Central Heating Summer daytime Setpoint Vinter daytime Setpoint Summer nighttime Setpoint Vinter nighttime Setpoint Forward temp at -20 C outdoor temp. Forward temp at -15 C outdoor temp. Forward temp at -10 C outdoor temp. Forward temp at -5 C outdoor temp. Forward temp at 0 C outdoor temp. Forward temp at 5 C outdoor temp. Forward temp at 10 C outdoor temp. Forward temp at 15 C outdoor temp. Forward temp at 20 C outdoor temp. ight compensation ight compensation until this o night compensation below this Forced displacement Forced displacement reset time (seconds) Return maximum Set state (0:Auto, 1:Stop, 2:Start) Return limiter forced set point Pump state (0:Off,1:On) Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) Values measured Out door sensor Forward Return ot used (returns 0) Motor valve position i percent Pump Stop/Start CV1_Summerday CV1_Vinterday CV1_Summernight CV1_Vinternight CV1_Tm20 CV1_Tm15 CV1_Tm10 CV1_Tm05 CV1_Tp00 CV1_Tp05 CV1_Tp10 CV1_Tp15 CV1_Tp20 CV1_ATSK CV1_AT_MAX CV1_AT_DIS CV1_VAMEMES CV1_VM_SET_T CV1_Retmax CV1_OMS CV1_Set_beg _CV1_CP301 CV1_STATE CV1_SV_stat _CV1_TC901 _CV1_TC301 _CV1_TC401 _EMPTY CV1_MV401 _CV1_CP301 BA Systems Petershvilevej 1 DK-3200 Helsinge 25

26 Scheme 2, process diagram: Central heating (CH) and Hot water tank (HWT) AI1 DO1 Centralvarme blandesløjfe med varmtvandsbeholder AI2 AO1 AI3 AI5 AI7 DO2 AO2 AI6 DI1 BAS918S or BAS929S BA Systems Petershvilevej 1 DK-3200 Helsinge 26

27 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 2, wiring diagram: 240VAC installation Circulation pump HWT Circulation pump CH Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve HWT Motor valve CH Circulation HWT Return HWT Tank HWT Return CH Forward CH Outdoor 240VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. Above wiring assumes that the components Circulation pump and Motor valve is to be supplied by 240VAC. BA Systems Petershvilevej 1 DK-3200 Helsinge 27

28 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 2, wiring diagram: 24VAC or 24VDC installation Circulation pump HWT Circulation pump CH Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve HWT Motor valve CH Circulation HWT Return temperaturn HWT Tank HWT Return CH Forward CH Outdoor 24VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. 24VAC as well as 24VDC may be used as supply. Above wiring assumes that Circulation pump and Motor valve is selected to support the same supply as the controller. BA Systems Petershvilevej 1 DK-3200 Helsinge 28

29 Scheme 2, description: Central heating control: Basic The control topology for central heating is a mixing loop with outdoor compensation of incoming flow. Return limiter control is supported and may be enabled when controlling scheme is selected. Regulation The incoming flow is controlled by the motor valve. Regulation is from 0 100%. The incoming flow is then regulated in relation to the outdoor, also called climate compensation, defined as follows. Outdoor Values in C Forward At daytime, the circulation pump is stopped when the exceeds 20 C. The pump is reactivated if the drops below 18 C. At nighttime, the circulation pump is stopped above 18 C and reactivated below 16 C. Regulation stop is achieved by shutting of the motor valve and stopping the circulation pump. These are all default values that may be changed Default activation The circulation pump is activated once every 24 hours if no other regulation is detected. The valve for regulation is likewise activated once every 24 hours if no other regulation is detected. BA Systems Petershvilevej 1 DK-3200 Helsinge 29

30 Scheme 2, description continued: Hot water heater: Basic Hot water is supplied from a Hot water tank. Return limiter control is supported.. Regulation A sensor inputs the value for regulating a motor valve in the return flow. Regulation is from 0-100%. Hot Water Tank regulation values are given by a Day-setpoint and as a ightsetpoint. Each controlled by a timer. By default the day value is 55 C and night value 45 C. Default timer setting activates Day-setpoint only. egionella drive is by default set to Sunday from until 70 C Tank is reached or until o clock. All setpoints/timers may be adjusted in the controlling scheme parameters. Circulation pump The Hot water circulation pump is controlled by a real time clock based timer for start / stop. BA Systems Petershvilevej 1 DK-3200 Helsinge 30

31 Scheme 2, modbus parameter list: Description Data format Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 Central heating/control Summer daytime Setpoint 1 x Vinter daytime Setpoint 2 x Summer nighttime Setpoint 3 x Vinter nighttime Setpoint 4 x Forward temp at -20 C outdoor temp. 5 x Forward temp at -15 C outdoor temp. 6 x Forward temp at -10 C outdoor temp. 7 x Forward temp at -5 C outdoor temp. 8 x Forward temp at 0 C outdoor temp. 9 x Forward temp at 5 C outdoor temp. 10 x Forward temp at 10 C outdoor temp. 11 x Forward temp at 15 C outdoor temp. 12 x Forward temp at 20 C outdoor temp. 13 x ight compensation 14 x ight compensation until this 15 x o night compensation below this 16 x Forced displacement 17 x Forced displacement reset time (seconds) 18 x Return maximum 19 x Set state (0:Auto, 1:Stop, 2:Start) 20 x Return limiter forced set point 1 x Pump state (0:Off,1:On) 2 x Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) 3 x Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) 4 x Central Heating/Values measured Out door sensor 5 x Forward 6 x ot used (returns 0) 7 x Return 8 x Motor valve position i percent 9 x Pump Stop/Start 10 x fcn 4 x1 BA Systems Petershvilevej 1 DK-3200 Helsinge 31

32 Scheme 2, modbus parameter list continued: Description Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 fcn 4 x1 Data format Hot Water Tank/control Daytime setpoint 21 x ighttime setpoint 22 x Return limiter maximum 23 x egionalla process (0:Off, 1:Sunday, 2:Monday... 7:Saturday, 8:All days 24 x Return limiter forced set point 11 x Pump state (0:Off, 1:On) 12 x Status (0:Stop, 1:Dag, 2:at, 3:egionella) 13 x Hot Water Tank/Values measured Tank 14 x Return (if selected) 15 x Circulation 16 x Motor valve position in percent 17 x Pump state (0:Off, 1:On) 18 x BA Systems Petershvilevej 1 DK-3200 Helsinge 32

33 Scheme 2, BACnet parameter list: Description Analog Value Analog Input Data format Central heating/control Summer daytime Setpoint Vinter daytime Setpoint Summer nighttime Setpoint Vinter nighttime Setpoint Forward temp at -20 C outdoor temp. Forward temp at -15 C outdoor temp. Forward temp at -10 C outdoor temp. Forward temp at -5 C outdoor temp. Forward temp at 0 C outdoor temp. Forward temp at 5 C outdoor temp. Forward temp at 10 C outdoor temp. Forward temp at 15 C outdoor temp. Forward temp at 20 C outdoor temp. ight compensation ight compensation until this o night compensation below this Forced displacement Forced displacement reset time (seconds) Return maximum Set state (0:Auto, 1:Stop, 2:Start) Return limiter forced set point Pump state (0:Off,1:On) Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) Central Heating/Values measured Out door sensor Forward Return ot used (returns 0) Motor valve position i percent Pump Stop/Start CV1_Summerday CV1_Vinterday CV1_Summernight CV1_Vinternight CV1_Tm20 CV1_Tm15 CV1_Tm10 CV1_Tm05 CV1_Tp00 CV1_Tp05 CV1_Tp10 CV1_Tp15 CV1_Tp20 CV1_ATSK CV1_AT_MAX CV1_AT_DIS CV1_VAMEMES CV1_VM_SET_T CV1_Retmax CV1_OMS CV1_Set_beg CV1_CP301 CV1_STATE CV1_SV_stat _CV1_TC901 _CV1_TC301 _CV1_TC401 _EMPTY CV1_MV401 _CV1_CP301 BA Systems Petershvilevej 1 DK-3200 Helsinge 33

34 Scheme 2, BACnet parameter list continued: Description Analog Value Analog Input Data format Hot Water Tank/control Daytime setpoint ighttime setpoint Return limiter maximum egionalla process (0:Off, 1:Sunday, 2:Monday... 7:Saturday, 8:All days Return limiter forced set point Pump state (0:Off, 1:On) Status (0:Stop, 1:Dag, 2:at, 3:egionella) Hot Water Tank/Values measured Tank Return (if selected) Circulation Motor valve position in percent Pump state (0:Off, 1:On) VB1_day VB1_nat VB1_Retmax VB1_egio VB1_Set_beg _VB1_CP401 VB1_s _VB1_TC301 _VB1_TC401 _VB1_TC402 _VB1_MV401 _VB1_CP401 BA Systems Petershvilevej 1 DK-3200 Helsinge 34

35 Scheme 3, process diagram: Central heating with Heat Exchanger DI1 AI1 DO1 AI2 AO1 AI3 AI4 BAS918S or BAS929S BA Systems Petershvilevej 1 DK-3200 Helsinge 35

36 Terminals for PHASE connection Terminals for U connection E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 3, wiring diagram: 240VAC installation Circulation pump Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve Secondary return Primary return Forward Outdoor 240VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. Above wiring assumes that the components Circulation pump and Motor valve is to be supplied by 240VAC. BA Systems Petershvilevej 1 DK-3200 Helsinge 36

37 Terminals for PHASE connection Terminals for U connection E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 3, wiring diagram: 24VAC or 24VDC installation Circulation pump Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve Secondary return Primary return Forward Outdoor 24VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. 24VAC as well as 24VDC may be used as supply. Above wiring assumes that Circulation pump and Motor valve is selected to support the same supply as the controller. BA Systems Petershvilevej 1 DK-3200 Helsinge 37

38 Scheme 3, description: Central heating control: Basic The control topology for central heating is a mixing loop with outdoor compensation of incoming flow. Return limiter control is supported and may be enabled when controlling scheme is selected. Regulation The incoming flow is controlled by the motor valve. Regulation is from 0 100%. The incoming flow is then regulated in relation to the outdoor, also called climate compensation, defined as follows. Outdoor Values in C Forward At daytime, the circulation pump is stopped when the exceeds 20 C. The pump is reactivated if the drops below 18 C. At nighttime, the circulation pump is stopped above 18 C and reactivated below 16 C. Regulation stop is achieved by shutting of the motor valve and stopping the circulation pump. These are all default values that may be changed Default activation The circulation pump is activated once every 24 hours if no other regulation is detected. The valve for regulation is likewise activated once every 24 hours if no other regulation is detected. BA Systems Petershvilevej 1 DK-3200 Helsinge 38

39 Scheme 3, modbus parameter list: Description Data format Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 Central heating Summer daytime Setpoint 1 x Vinter daytime Setpoint 2 x Summer nighttime Setpoint 3 x Vinter nighttime Setpoint 4 x Forward temp at -20 C outdoor temp. 5 x Forward temp at -15 C outdoor temp. 6 x Forward temp at -10 C outdoor temp. 7 x Forward temp at -5 C outdoor temp. 8 x Forward temp at 0 C outdoor temp. 9 x Forward temp at 5 C outdoor temp. 10 x Forward temp at 10 C outdoor temp. 11 x Forward temp at 15 C outdoor temp. 12 x Forward temp at 20 C outdoor temp. 13 x ight compensation 14 x ight compensation until this 15 x o night compensation below this 16 x Forced displacement 17 x Forced displacement reset time (seconds) 18 x Return maximum 19 x Set state (0:Auto, 1:Stop, 2:Start) 20 x Retur limiter forced setpoint 1 x Pump state (0:Off,1:On) 2 x Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) 3 x Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) 4 x Values measured Out door sensor 5 x Forward 6 x ot used (returns 0) 7 x Return 8 x Motor valve position i percent 9 x Pump Stop/Start 10 x fcn 4 x1 BA Systems Petershvilevej 1 DK-3200 Helsinge 39

40 Scheme 3, BACnet parameter list: Description Analog Value Analog Input Data format Central Heating/control Summer daytime Setpoint Vinter daytime Setpoint Summer nighttime Setpoint Vinter nighttime Setpoint Forward temp at -20 C outdoor temp. Forward temp at -15 C outdoor temp. Forward temp at -10 C outdoor temp. Forward temp at -5 C outdoor temp. Forward temp at 0 C outdoor temp. Forward temp at 5 C outdoor temp. Forward temp at 10 C outdoor temp. Forward temp at 15 C outdoor temp. Forward temp at 20 C outdoor temp. ight compensation ight compensation until this o night compensation below this Forced displacement Forced displacement reset time (seconds) Return maximum Set state (0:Auto, 1:Stop, 2:Start) Return limiter forced set point Pump state (0:Off,1:On) Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) Central Heating/Values measured Out door sensor Forward Return ot used (returns 0) Motor valve position i percent Pump Stop/Start CV1_Summerday CV1_Vinterday CV1_Summernight CV1_Vinternight CV1_Tm20 CV1_Tm15 CV1_Tm10 CV1_Tm05 CV1_Tp00 CV1_Tp05 CV1_Tp10 CV1_Tp15 CV1_Tp20 CV1_ATSK CV1_AT_MAX CV1_AT_DIS CV1_VAMEMES CV1_VM_SET_T CV1_Retmax CV1_OMS CV1_Set_beg _CV1_CP301 CV1_STATE CV1_SV_stat _CV1_TC901 _CV1_TC301 _CV1_TC401 _EMPTY CV1_MV401 _CV1_CP301 BA Systems Petershvilevej 1 DK-3200 Helsinge 40

41 Scheme 4, process diagram: Central heating with heat exchanger and hot water supply AI1 DO1 AI2 AO1 AI3 AI4 AI5 AI7 DO2 AO2 AI6 DI1 BAS918S or BAS929S BA Systems Petershvilevej 1 DK-3200 Helsinge 41

42 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 4, wiring diagram: 240VAC installation Circulation pump HWT Circulation pump CH Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve HWT Motor valve CH Circulation HWT Return HWT Tank HWT Secondary return CH Primary return CH Forward CH Outdoor 240VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. Above wiring assumes that the components Circulation pump and Motor valve is to be supplied by 240VAC. BA Systems Petershvilevej 1 DK-3200 Helsinge 42

43 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 4, wireing diagram 24VAC or 24VDC installation Circulation pump HWT Circulation pump CH Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve HWT Motor valve CH Circulation HWT Return HWT Tank HWT Secondary return CH Primary return CH Forward CH Outdoor 24VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. 24VAC as well as 24VDC may be used as supply. Above wiring assumes that Circulation pump and Motor valve is selected to support the same supply as the controller. BA Systems Petershvilevej 1 DK-3200 Helsinge 43

44 Scheme 4, description: Central heating control: Basic The control topology for central heating is a mixing loop with outdoor compensation of incoming flow. Return limiter control is supported and may be enabled when controlling scheme is selected. Regulation The incoming flow is controlled by the motor valve. Regulation is from 0 100%. The incoming flow is then regulated in relation to the outdoor, also called climate compensation, defined as follows. Outdoor Values in C Forward At daytime, the circulation pump is stopped when the exceeds 20 C. The pump is reactivated if the drops below 18 C. At nighttime, the circulation pump is stopped above 18 C and reactivated below 16 C. Regulation stop is achieved by shutting of the motor valve and stopping the circulation pump. These are all default values that may be changed Default activation The circulation pump is activated once every 24 hours if no other regulation is detected. The valve for regulation is likewise activated once every 24 hours if no other regulation is detected. BA Systems Petershvilevej 1 DK-3200 Helsinge 44

45 Scheme 4, description continued: Hot water heater: Basic Hot water is supplied from a Hot water tank. Return limiter control is supported.. Regulation A sensor inputs the value for regulating a motor valve in the return flow. Regulation is from 0-100%. Hot Water Tank regulation values are given by a Day-setpoint and as a ightsetpoint. Each controlled by a timer. By default the day value is 55 C and night value 45 C. Default timer setting activates Day-setpoint only. egionella drive is by default set to Sunday from until 70 C Tank is reached or until o clock. All setpoints/timers may be adjusted in the controlling scheme parameters. Circulation pump The Hot water circulation pump is controlled by a real time clock based timer for start / stop. BA Systems Petershvilevej 1 DK-3200 Helsinge 45

46 Scheme 4, modbus parameter list: Description Data format Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 Central heating/control Summer daytime Setpoint 1 x Vinter daytime Setpoint 2 x Summer nighttime Setpoint 3 x Vinter nighttime Setpoint 4 x Forward temp at -20 C outdoor temp. 5 x Forward temp at -15 C outdoor temp. 6 x Forward temp at -10 C outdoor temp. 7 x Forward temp at -5 C outdoor temp. 8 x Forward temp at 0 C outdoor temp. 9 x Forward temp at 5 C outdoor temp. 10 x Forward temp at 10 C outdoor temp. 11 x Forward temp at 15 C outdoor temp. 12 x Forward temp at 20 C outdoor temp. 13 x ight compensation 14 x ight compensation until this 15 x o night compensation below this 16 x Forced displacement 17 x Forced displacement reset time (seconds) 18 x Return maximum 19 x Set state (0:Auto, 1:Stop, 2:Start) 20 x Return limiter forced setpoint 1 x Pump state (0:Off,1:On) 2 x Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) 3 x Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) 4 x Central Heating/Values measured Out door sensor 5 x Forward 6 x ot used (returns 0) 7 x Return 8 x Motor valve position i percent 9 x Pump Stop/Start 10 x fcn 4 x1 BA Systems Petershvilevej 1 DK-3200 Helsinge 46

47 Scheme 4, modbus parameter list continued: Description Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 fcn 4 x1 Data format Hot Water Tank/control Daytime setpoint 21 x ighttime setpoint 22 x Return limiter maximum 23 x egionalla process (0:Off, 1:Sunday, 2:Monday... 7:Saturday, 8:All days 24 x Return limiter forced set point 11 x Pump state (0:Off, 1:On) 12 x Status (0:Stop, 1:Dag, 2:at, 3:egionella) 13 x Hot Water Tank/Values measured Tank 14 x Return (if selected) 15 x Circulation 16 x Motor valve position in percent 17 x Pump state (0:Off, 1:On) 18 x BA Systems Petershvilevej 1 DK-3200 Helsinge 47

48 Scheme 4, BACnet parameter list: Description Analog Value Analog Input Data format Central heating/control Summer daytime Setpoint Vinter daytime Setpoint Summer nighttime Setpoint Vinter nighttime Setpoint Forward temp at -20 C outdoor temp. Forward temp at -15 C outdoor temp. Forward temp at -10 C outdoor temp. Forward temp at -5 C outdoor temp. Forward temp at 0 C outdoor temp. Forward temp at 5 C outdoor temp. Forward temp at 10 C outdoor temp. Forward temp at 15 C outdoor temp. Forward temp at 20 C outdoor temp. ight compensation ight compensation until this o night compensation below this Forced displacement Forced displacement reset time (seconds) Return maximum Set state (0:Auto, 1:Stop, 2:Start) Return limiter forced set point Pump state (0:Off,1:On) Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) Central Heating/Values measured Out door sensor Forward Return ot used (returns 0) Motor valve position i percent Pump Stop/Start CV1_Summerday CV1_Vinterday CV1_Summernight CV1_Vinternight CV1_Tm20 CV1_Tm15 CV1_Tm10 CV1_Tm05 CV1_Tp00 CV1_Tp05 CV1_Tp10 CV1_Tp15 CV1_Tp20 CV1_ATSK CV1_AT_MAX CV1_AT_DIS CV1_VAMEMES CV1_VM_SET_T CV1_Retmax CV1_OMS CV1_Set_beg CV1_CP301 CV1_STATE CV1_SV_stat _CV1_TC901 _CV1_TC301 _CV1_TC401 _EMPTY CV1_MV401 _CV1_CP301 BA Systems Petershvilevej 1 DK-3200 Helsinge 48

49 Scheme 4, BACnet parameter list continued: Description Analog Value Analog Input Data format Hot Water Tank/control Daytime setpoint ighttime setpoint Return limiter maximum egionalla process (0:Off, 1:Sunday, 2:Monday... 7:Saturday, 8:All days Return limiter forced set point Pump state (0:Off, 1:On) Status (0:Stop, 1:Dag, 2:at, 3:egionella) Hot Water Tank/Values measured Tank Return (if selected) Circulation Motor valve position in percent Pump state (0:Off, 1:On) VB1_day VB1_nat VB1_Retmax VB1_egio VB1_Set_beg _VB1_CP401 VB1_s _VB1_TC301 _VB1_TC401 _VB1_TC402 _VB1_MV401 _VB1_CP401 BA Systems Petershvilevej 1 DK-3200 Helsinge 49

50 Scheme 5, process diagram: Dual Central heating DI1 AI1 DO1 AI2 AO1 AI3 CH1 DO2 AI5 AO2 AI6 CH2 BAS918S or BAS929S BA Systems Petershvilevej 1 DK-3200 Helsinge 50

51 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 5, wiring diagram: 240VAC installation Circulation pump CH2 Circulation pump CH1 Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve CH2 Motor valve CH1 Return CH2 Forward CH2 Return CH1 Forward CH1 Outdoor 240VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. Above wiring assumes that the components Circulation pump and Motor valve is to be supplied by 240VAC. BA Systems Petershvilevej 1 DK-3200 Helsinge 51

52 Terminals for PHASE connection Terminals for U connection E E DICOM AO4_I AO3_I OP3 BAS 918S/929S Scheme 5, wiring diagram: 24VAC or 24VDC installation Circulation pump CH2 Circulation pump CH1 Power supply Water meter DI4 DI3 DI2 DI1 DO11B DO11A DO10B DO10A DO9B DO9A DO8B DO8A DO7B DO7A DO6B DO6A DO5B DO5A DO4B DO4A DO3B DO3A DO2B DO2A DO1B DO1A 24VAC/ 24VAC/ 240VAC/ 240VAC/ 240VAC/ 24VAC/ 24VDC+ 240VAC/ 24VAC/ 24VDC- OP1 OP2 AO4+ AO4 AO3+ AO3 AO2+ AO2 AO1+ AO1 AI10+ AI10 AI9+ AI9 AI8+ AI8 AI7+ AI7 AI6+ AI6 AI5+ AI5 AI4+ AI4 AI3+ AI3 AI2+ AI2 AI1+ AI1 Motor valve CH2 Motor valve CH1 Return CH2 Forward Temperature CH2 Return CH1 Forward CH1 Outdoor 24VAC ote: label indicates PHASE connection, i.e. all wires with must be connected label indicates U connection, i.e. all wires with must be connected Motor valves will often have a common terminal for U and Analog reference (-). If so AO and U must be connected. Water metering scaling to be defined when selecting controlling scheme. 24VAC as well as 24VDC may be used as supply. Above wiring assumes that Circulation pump and Motor valve is selected to support the same supply as the controller. BA Systems Petershvilevej 1 DK-3200 Helsinge 52

53 Scheme 5, description: Central heating control: Basic The control topology for central heating is a mixing loop with outdoor compensation of incoming flow. Return limiter control is supported and may be enabled when controlling scheme is selected. Regulation The incoming flow is controlled by the motor valve. Regulation is from 0 100%. The incoming flow is then regulated in relation to the outdoor, also called climate compensation, defined as follows. Outdoor Values in C Forward At daytime, the circulation pump is stopped when the exceeds 20 C. The pump is reactivated if the drops below 18 C. At nighttime, the circulation pump is stopped above 18 C and reactivated below 16 C. Regulation stop is achieved by shutting of the motor valve and stopping the circulation pump. These are all default values that may be changed Default activation The circulation pump is activated once every 24 hours if no other regulation is detected. The valve for regulation is likewise activated once every 24 hours if no other regulation is detected. BA Systems Petershvilevej 1 DK-3200 Helsinge 53

54 Scheme 5, modbus parameter list: Description Data format Holding Register fcn 3/6 x10 fcn 3/6 x1 Input Register fcn 4 x10 Central heating circuit 1/control Summer daytime Setpoint 1 x Vinter daytime Setpoint 2 x Summer nighttime Setpoint 3 x Vinter nighttime Setpoint 4 x Forward temp at -20 C outdoor temp. 5 x Forward temp at -15 C outdoor temp. 6 x Forward temp at -10 C outdoor temp. 7 x Forward temp at -5 C outdoor temp. 8 x Forward temp at 0 C outdoor temp. 9 x Forward temp at 5 C outdoor temp. 10 x Forward temp at 10 C outdoor temp. 11 x Forward temp at 15 C outdoor temp. 12 x Forward temp at 20 C outdoor temp. 13 x ight compensation 14 x ight compensation until this 15 x o night compensation below this 16 x Forced displacement 17 x Forced displacement reset time (seconds) 18 x Return maximum 19 x Set state (0:Auto, 1:Stop, 2:Start) 20 x Return limiter forced setpoint 1 x Pump state (0:Off,1:On) 2 x Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop) 3 x Energy state (0:Auto, 1:Vinter, 2:Force start, 3:Force stop, 4:Day/off, 5:ight/off) 4 x Centarl Heating circuit 1/Values measured Out door sensor 5 x Forward 6 x ot used (returns 0) 7 x Return 8 x Motor valve position i percent 9 x Pump Stop/Start 10 x fcn 4 x1 BA Systems Petershvilevej 1 DK-3200 Helsinge 54