s Synco™ 200 Universal Controllers RLU2… Basic Documentation Version 2.3 CE1P3101en 29.08.
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Contents 1 About this document ..............................................................................5 1.1 Revision history.........................................................................................5 1.2 Before you start.........................................................................................8 2 Overview ................................................................................................10 2.1 Product range...........................................
8.4 Variable step switch (STEP Vx) ..............................................................75 8.5 Linear step switch (STEPLIN) .................................................................79 8.6 Binary step switch (STEPBIN) ................................................................84 8.7 3-position output (3-POINT) ....................................................................88 9 Controller (CTLOOP x)..........................................................................
1 About this document 1.1 Revision history Against version 2.2 of this document, the following changes have been made: Chapter/ section All All Changes New template Controller RLU210 no longer mentioned in this document All Information about paths: CHK replaced by INFO 1 New chapter 2.1 New layout 2.4 New numbers; lines deleted; lines added 3 3.2.
Chapter/ section 8.3.5 Changes 8.3.5 8.3.7 Introductory text relating to special application examples 1 and 2 revised New subsection "Mixed air temperature control (MAT)" due to new function New subsection "Startup circuit" due to new function 8.3.8 Wording revised 8.3.11 Lines for MAT and COOLER added to "Configuration" table 8.3.11 Order and various corrections in table "Setting values" 8.4.7 8.5.
Chapter/ section 9.6.5 Changes Subsection “Configuration” revised 9.7 SEQ is now termed SEQLIM (several times) 10 Chapter restructured 10 RELEASE is now termed ALM OFF 10.3.2 New 10.3.3 Graph in subsection "Function diagram" adapted 10.3.4 New 10.3.5 Graph in subsection "Function diagram” adapted 10.3.6 New 10.6 Legend: New device designations 11.1 Column “Effect” with page number references deleted 13.2 Operating texts adapted and reduced to texts effectively required 13.3.
1.2 Before you start 1.2.1 Copyright This document may be duplicated and distributed only with the express permission of Siemens BT, and may be passed only to authorized persons or companies with the required technical knowledge. 1.2.2 Quality assurance This document was prepared with great care.
1.2.3 Document use / request to the reader Before using our products (equipment, applications, tools, etc.), it is important that you read the documents supplied with or ordered at the same time as the products carefully and in full. We assume that persons using our products and documents are authorized and trained appropriately and have the technical knowledge required to use our products as intended.
Controller types and accessories 2 Overview 2.1 Product range The following tables list the controller types and accessories belonging to the product range, and indicate the respective Data Sheets: Devices Name Universal controller Universal controller Universal controller Universal controller Universal controller Type RLU202 RLU202 RLU222 RLU232 RLU236 Data Sheet N3101 N3101 N3101 N3101 N3101 Mounting accessories Name Flush panel mounting frame Type ARG62.
2.2 Possible combinations Equipment combinations The following table lists the equipment that can be combined with the controllers: Equipment Passive sensors Active sensors Monitors Signal converters Room units Passive signal sources Active signal sources Actuating devices Variable speed drives Time switches Transformers Service equipment 2.
2.
2.5 Important notes This symbol draws your attention to special safety notes and warnings. Failing to observe these notes may result in injury and / or serious damage. Field of use You may only use Synco™ 200 products to control and monitor heating, ventilation, air conditioning and chilled water plants. Intended use Safe and trouble-free operation of Synco™ 200 products presupposes transport, storage, mounting, installation and commissioning as intended as well as careful operation.
Front view 3 Operation 3.1 Operating elements and display 3.1.
3.1.2 View / arrangement Display The display is subdivided into several logical blocks. The blocks contain symbols associated with specific operating states. They provide current information for the user.
3.1.3 Table of symbols Display symbols The following table lists displayed symbols and their meaning. Grouping matches the aforementioned arrangement.
2 operating levels 3.2 Operating and access levels 3.2.1 Operating levels RLU2… universal controllers have 2 operating levels. They are: • • Info level Main menu The following table contains their properties and identification. Designation Info level Main menu Properties ID Use this level to display key plant data as Info pages None This level is structured as a menu.
Example of Info page and main menu The following example shows the above information.
3.2.2 3 access levels Access levels RLU2… universal controllers have 3 access levels. They are: • • • User level Service level Password level Each data point is assigned one of these access levels. Access The following table contains the 3 access levels and their purpose, access and symbols: Level User level (for plant operator) Service level (for maintenance) Password level (for commissioning) Common properties Access The user level can be accessed any time.
Info pages at the service level The service level displays additional Info pages for maintenance work. These show the states of the physical outputs Y1…Y3 and Q1…Q6. This Info page shows the voltage at terminals Y1…Y3: Examples • • • Y1 = 3.0...3.9 V Y2 = 9.0...10.0 V Y3 = 0.0...0.
Levels and menus 3.3 Menu 3.3.
3.3.2 Example Menu navigation The following pictures demonstrate menu navigation with the example of adjusting proportional band Xp for sequence 1 of control loop 1. The access level is set to SERVICE. Starting point is the Info level. Display Procedure / result 1. SERVICE INFO PARA SET Press the OK button. Result: First menu entry blinks, here INFO (Inputs/outputs). Note: Text in the information segment (here VALUES) explains the active menu item (here INFO). 2. SERVICE INFO PARA SET 3.
4 Commissioning 4.1 Safety Preparation for use and commissioning of Synco™ 200 controllers must only be undertaken by qualified staff who have been appropriately trained by Siemens BT. Procedure 4.2 Entering commissioning mode 4.2.1 Initial startup The controller automatically enters the commissioning menu when the AC 24 V power supply is applied.
4.2.2 Start from main menu Prerequisite The COMMIS (commissioning) menu is only active at the password level (password = 2). If the password level is not already selected, simultaneously press the ESC and OK buttons to activate it.
4.3 APPL ID menu (basic configuration) The APPL ID menu (basic configuration) permits the following settings: • • Choice of basic type A or U Choice of programmed application 4.3.1 Distinction between basic types A and U Selecting the basic configuration Selecting the basic type The basic type is the first thing you must set in every controller. The choice of basic type enables and disables certain functions.
Configuration 4.3.3 Settings Path: … > COMMIS > APPL ID Display APPL ID Name Plant type Range / comments Selection of basic type or application number: A, U, A01, A02, A03, A04, …, U01, U02, … Note If a basic type or application number has already been selected and is then changed, an asterisk  appears in front of the basic type or application number.
The easiest way 4.4 Three ways to get the right application 4.4.1 Programmed application Each RLU2… controller offers a large choice of programmed and fully tested applications. The easiest way to commission a plant is to activate one of the programmed applications and to match the parameters to the respective plant, if necessary. The programmed applications are listed in the Data Sheet (including a short description) and in the Installation Instructions.
4.5 Functions Wiring test When the peripheral equipment is connected, you can perform a wiring test in the TEST (wiring test) menu. We recommend testing after configuration and settings are complete. The test provides the following functions: • • • Display of reading values for inputs Switching of aggregates connected to the outputs, such as pumps Preselection of a 0…100% signal for step switches, where the relays are switched The application is deactivated during the wiring test.
4.
Setting values 5 General settings 5.1 Selecting the unit At the service and password levels, you can switch the temperature unit between °C/K and °F: Path: … > PARA > MODE Display UNIT 5.2 Display values Name Unit Range °C, °F Factory setting °C Device information You can view the SW version at the service and password levels: Path: INFO Display SW-VERS Name Software version Comments 30 / 174 Siemens Building Technologies Universal Controllers RLU2… General settings CE1P3101en 29.08.
Basic differentiation 6 Operating modes 6.1 Basic types We distinguish between the following 2 basic applications with the RLU2.. universal controllers: • • Operating modes Basic type A Basic type U => controller 1 is a room temperature controller => controller 1 is a universal controller In normal operation, the operating mode for basic types A and U is preselectable via digital inputs D1 / D2 (e.g. by an external time switch or manual switch).
6.2 Room mode selection via digital inputs Operating principle This feature provides for intervention in the current program without having to make any changes at the controller itself. To activate this function, you have to configure the appropriate digital inputs. Note Mode switching via HMI (operation) is not possible.
RLU222, RLU202 and RLU220 The following settings are required depending on the desired function: Function Switching between Comfort / Protection Switching between Comfort / Economy D1 0 0 1 1 Setting Digital input D1, hard wired Digital input configured for OPMODE OP MODE Operating mode 0 Comfort 1 Economy 0 Protection 1 Protection Value Permanently configured ---, X1…X5 Function See "RLU232 and RLU236" See "RLU232 and RLU236" See "RLU232 and RLU236" See "RLU232 and RLU236" Note If no other digital i
6.3 Function and nonswitch off conditions Fan release / ALM OFF This function uses a free switching output of the RLU2… (e.g. Q1) for fan release ALM OFF. The fan is released when no alarm is present, that is, with alarm OFF (when ALM OFF = YES, that is, when the switching output is energized).
Configuration 6.3.
Connectable signals 7 Inputs 7.1 Universal inputs X1…X5 7.1.
7.1.2 Activating the function Availability Universal Xx inputs are always available. If not required for their functionality, they can be used for diagnostics purposes. Assigning the identifiers To activate, assign a LABEL (identifier) to each input used. The identifier also defines the input's physical unit. The following identifiers are available: LABEL (identifier) ROOM OUTS SAT Temp % 0.
7.2 Analog inputs X1…X5 7.2.1 Activation and type Activation To activate the analog inputs X1…X5, follow the procedure described above under "Activating the function". Type (TYPE) If the unit is °C / °F, the type is selectable. The following types are available: • • • • • NI (LG-Ni1000) 2XNI (2 x LG-Ni1000) T1 (T1) PT (Pt1000) 0-10 (DC 0…10 V) If the unit is not °C / °F, the type is always DC 0…10 V. 7.2.
7.2.3 Active measured value signal (SIGNALY) Multiple use of sensors The measured values from passive sensors can be delivered in the form of active, continuous signals. For that, you must assign an output to the input. The settings under "Measuring range" are also used for setting up the output.
7.2.6 You can connect a passive LG-Ni1000 temperature sensor to the input. It must be connected according to the following diagram: G 3101A07 Connection diagram LG-Ni1000 sensor Connection diagrams (examples) B... AC 24 V LG-Ni 1000 B G X... M M G0 N G0 It is also possible to take an average temperature measurement with 4 passive sensors. In that case, the sensors must be connected according to the following diagram: G B... B... AC 24 V LG-Ni 1000 B G M B... LG-Ni 1000 B M B...
Connection diagram T1 A passive T1 temperature sensor can be connected to the input. It must be connected according to the following diagram: AC 24 V 3101A10 G B... G X... M G0 N G0 Connection diagram for DC 0…10 V An active sensor can be connected to the input. It must be connected according to the following diagram: AC 24 V B M G G 3101A11 G B... X... M G1 G0 N G0 A passive setpoint adjuster (e.g. BSG21.1 or QAA25) can be connected to the input.
7.2.7 Troubleshooting Sensor signal monitoring The controller monitors the active and passive signals as follows: • When you leave the commissioning menu, the universal controller checks which sensors are connected.
Configuration Setting values Display values 7.2.8 Settings Path: … > COMMIS > CONF > X1…X5 Display LABEL Name Input identifier SIGNALY Measured value signal output Path: Name Type Value low MAX VAL Value high CORR Correction Display X1 … X5 Wiring test Fault status messages … > PARA > X1…X5 Display TYPE MIN VAL Path: Path: Range / comments Assignment of ROOM, OUTS, SAT, TEMP, %, 0.
7.3 Purpose and types Digital inputs (D1, D2, X1…X5) Signals for open-loop control functions (e.g. mode selector switch) can be connected to the digital inputs. There are 2 types of digital input: • • Permanently assigned digital inputs D1 and D2 Universal inputs X1…X5, activated as digital inputs X1…X5 Normal position For each digital input, the normal position can be predefined.
Configuration 7.3.
7.4 Remote setpoint, absolute (REM) 7.4.1 Basic type and suitable setpoint adjusters Basic type You can configure an absolute setpoint adjuster both for basic type A and basic type U. It acts on the Comfort and Economy setpoints. Suitable setpoint adjusters Suitable setpoint adjusters are the QAA25 room operating unit (5…35 °C) and the BSG21.1 (0…1000 Ω) or BSG61 (DC 0…10 V) devices. 7.4.
7.4.5 Setpoints for Comfort Setpoints for basic type U The Comfort setpoints must always be entered. The remote setpoint always acts on the lower Comfort setpoint (SET MIN); the dead zone Xdz between Seq1+2 and Seq4+5 remains the same as the dead zone Xdz for the permanently preset setpoints.
Configuration 7.4.
7.5 Remote setpoint, relative (REL) 7.5.1 Basic type and suitable setpoint adjusters Basic type You can only configure a relative setpoint adjuster for basic type A. It acts on the Comfort and Economy room temperature setpoints. Suitable setpoint adjusters Suitable setpoint adjusters are the QAA27 room operating unit (−3…+3 K) or the BSG21.5. 7.5.
7.5.5 Connection errors When you leave the commissioning menu, the universal controller checks whether the setpoint adjuster is connected.
Activating the function 7.6 Outside temperature (OUTS) 7.6.1 Activation and functionality You can activate the function by setting identifier OUTS (outside temperature) at the respective input. OUTS (outside temperature) is a special identifier, because it creates a large number of internal connections. Additional functionality Configuration The other properties, such as measuring range, troubleshooting, etc., are described in chapter 0 "Analog inputs". 7.6.
Activating the function 7.7 Room temperature (ROOM) 7.7.1 Activation and functionality You can activate the function by setting identifier ROOM (outside temperature) at the respective input. ROOM (outside temperature) is a special identifier because it creates automatically a large number of “internal connections”. ROOM can only be selected in basic type A. Additional functionality Configuration The other properties, such as measuring range, troubleshooting, etc.
Activating the function 7.8 Supply air temperature (SAT) 7.8.1 Activation and functionality You can activate the function by setting identifier SAT (supply air temperature) at the respective input. SAT (supply air temperature) is a special identifier because it creates automatically a large number of “internal connections”. SAT can only be selected in basic type A.
8 Aggregates 8.1 Pump (PUMP x) 8.1.1 Purpose and activation Purpose of PUMP x The PUMP x (pump control) function block controls load-dependent pumps. Number Depending on the type of controller, the following pump control choices (PUMP x) are available: Controller type RLU202 RLU202 RLU222 RLU232 RLU236 Activation Number of PUMP x Max. 2 None Max. 2 Max. 2 Max. 3 For activation, you must assign a switching output (Qx) to pump control (PUMP x).
8.1.2 Switching on / off Not possible via operating mode The pumps cannot be switched via the operating mode (Comfort, Economy). Load-dependent by the sequence controller The sequence controller can switch the pump on according to load. Up to 2 connections can be wired from the sequence controllers, in which case maximum selection applies. You can enter the switch-on and switch-off points via the ON-Y and OFF-Y settings.
8.1.3 Errors in operation Troubleshooting If the outside temperature signal is not available, and the value for "On according to outside temperature" is not set to –50 °C, the pump remains permanently on. 8.1.4 Function check / wiring test Switching on / off During the wiring test, the pumps can be directly switched via the control switch. Switch positions The switch has the following positions: • • Off On 8.1.
Configuration 8.1.
8.1.
8.2 Modulating output (AO) 8.2.1 Purpose and activation Purpose of AO x The AO x (modulating output) function block generates a continuous DC 0…10 V output signal for a modulating actuator with a corresponding input. Note The AO x function block is not available with the RLU220 controller. Activation To activate the AO x function block, you must assign an output (Y x) to it. 8.2.
Limitations (MIN POS, MAX POS) You can impose upper and lower limits on the modulating output. In that case, 0…100% output means "Positioning signal min (MIN POS)…positioning signal max (MAX POS)" as shown below: 100 % 3101D05 Y 10 V MAX POS MIN POS 0% 0V 0% 100 % Qs Qs = load demand from the sequence controller Application example %OPEN according to the outside temperature You can use this feature to parameterize the output for a solenoid valve with a DC 5…7.5 V input signal, for example.
8.2.4 Wiring test (TEST) Switching on / off During the wiring test, the modulating output can be directly commanded via the control switch. Switch positions The switch has the following positions: • • Note Configuration Setting values --0…100% load Settings such as INVERS, MIN POS and MAX POS are also effective during the wiring test. 8.2.
8.3 Heat recovery (HREC) 8.3.1 Purpose and activation Purpose of HREC The HREC function block controls HR equipment or mixing dampers with a DC 0…10 V signal. Note The HREC function block is not available with the RLU220 controller. Activation To activate the HREC function block, you must assign an output (Y x) to it. Notes If you use the HREC function block to control mixing dampers, ensure that TYPE is set to DMP. This refers to the control of the outside air dampers. 8.3.
8.3.3 Heat recovery changeover (TYPE) Output inversion To produce the changeover between HR equipment (wheel, glycol) and mixing dampers, you can invert the output signal using TYPE. Settings You have to make the following settings in normal operation to achieve the customary control response: • • HR equipment: \_ TYPE = ERC Mixing damper: /_ TYPE = DMP 0…100% load = 0…100% output 0…100% load = 100…0% output Note This response applies if the HR equipment (HREC) is connected to the SEQ1 Y heating se
8.3.5 Maximum economy changeover (MECH) Purpose The purpose of this function is to optimize the control of the HR in air conditioning systems with regard to operating costs. It compares the available energy in the outside air and exhaust air, and switches the inversion accordingly.
Maximum economy changeover (MECH), (cont’d) Possibility 1: Changeover from externally via a digital signal For that purpose, MECH input 1 (MECH 1) must be assigned a digital input.
Maximum economy changeover (MECH), (cont’d) Possibility 2: Changeover at an adjustable value For that purpose, MECH input 1 (MECH 1) must be assigned an alalog input. Function with TYPE = ERC: When controlled via the heating sequence: When the set MECHU limit value (MECHSET) is exceeded, the output of the HR equipment (HREC) will be inverted. When controlled via the cooling sequence: When the set MECH limit value (MECHSET) is exceeded, the output of the HR equipment (HREC) will no longer be inverted.
Maximum economy changeover (MECH), (cont’d) Possibility 3: Changeover at an adjustable difference To achieve changeover at an adjustable difference between 2 measured values, you must assign one analog input each to MECH input 1(MECH 1) and MECH input 2 (MECH 2). Function with TYPE = ERC: When controlled via the heating sequence: When the set MECH difference (MECHSET) is exceeded, the output of the HR equipment (HREC) will be inverted.
Maximum economy changeover (MECH), (cont’d) Special application example 1: Changeover from externally via digital signal with air damper as first cooling sequence For that purpose, MECH input 1 (MECH 1) must be assigned a digital input.
Maximum economy changeover (MECH), (cont’d) Special application example 2: Changeover at adjustable difference with air damper as first cooling sequence To achieve changeover at an adjustable difference between 2 measured values, you must assign one analog input each to MECH input 1 (MECH 1) and MECH input 2 (MECH 2). To do this, assign the outside temperature to MECH input 1, and the room temperature to MECH input 2.
8.3.6 The mixed air temperature controller is activated by feeding the mixed air temperature signal to the HR block (HREC). With the help of the mixing dampers, the mixed air temperature is controlled to an adjustable setpoint. 3150S43de Activation Mixed air temperature control (MAT) .X... Y °C M M x x 100 % Cooler HREC M T .................... 0% Y Q w AO Note x IN X HREC x MECH 1 MECH 2 y1 y2 MAT AI .Y...
Function diagram Starting time 71 / 174 Siemens Building Technologies Universal Controllers RLU2… Aggregates CE1P3101en 29.08.
8.3.8 Permanent priority of cooling valve (COOLER) Problem In dehumidification mode, temperature control calls for warmer air, therefore acting on the HR system. As a result, the air cooling coil needs more energy to cool the air again. Solution This is prevented by making use of the COOLER function: The cooling valve function block is assigned to the HR equipment. The cooling valve is given priority.
8.3.9 Direct control via control switch Wiring test (TEST) During the wiring test, the modulating output can be directly commanded via the control switch. Maximum economy changeover (MECH) is inactive. The switch has the following positions: • • Note --0…100% load Settings such as TYPE, MIN POS and MAX POS are also effective during the wiring test. 8.3.10 Troubleshooting Errors in operation If the sensors for MECH are not available, changeover does not occur.
Configuration Setting values 8.3.
8.4 Variable step switch (STEP Vx) 8.4.1 Purpose and activation Purpose of STEP Vx The STEP Vx (variable step switch) function block switches multi-stage aggregates. All outputs can be set individually.
Operating principle (cont’d) Locking time (OFFTIME) Additionally, you can enter a common locking time for the digital outputs. This ensures that a stage that has just switched off remains off for at least the set period of time. No overrun time in the step switch You cannot enter an overrun time for the step switches, since there are no openloop control functions in the Synco 200 product range.
8.4.5 Function check / wiring test Switching on / off The step switch can be switched directly via the control switch during the wiring test. Switch positions The switch has the following positions: • --• 0…100% load Note Settings such as INVERS, MIN POS and MAX POS are also effective during the wiring test. 8.4.
Setting values Path: … > PARA > STEP V1 … > PARA > STEP V2 Display S1-ON S1-OFF S2-ON S2-OFF S3-ON S3-OFF S4-ON S4-OFF S5-ON S5-OFF S6-ON S6-OFF OFFTIME MIN POS MAX POS INVERS Name [Step 1] ON [Step 1] OFF [Step 2] ON [Step 2] OFF [Step 3] ON [Step 3] OFF [Step 4] ON [Step 4] OFF [Step 5] ON [Step 5] OFF [Step 6] ON [Step 6] OFF Locking time Positioning signal min Positioning signal max Inversion Range 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 0…100 % 00.
8.5 Linear step switch (STEPLIN) 8.5.1 Purpose and activation Purpose of STEPLIN The STEPLIN (linear step switch) function block switches multistage aggregates. Load distribution to the outputs is linear.
8.5.2 Load connection Operating principle The linear step switch connects the relay outputs in equal steps. Load connection applies the following pattern: 3101D18 Y+Q AO STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 0% 100 % Q Y+Q STEP 6 STEP 5 STEP 4 STEP 3 STEP 2 STEP 1 AO 0% 100 % Q 80 / 174 Siemens Building Technologies Universal Controllers RLU2… Aggregates CE1P3101en 29.08.
Example with 2 digital outputs: 0Y + 2Q a a 1Y + 2Q a a S2-ON a 3101D19 Switching interval a ¼a STEP 2 S2-OFF S1-ON STEP 1 S1-OFF MAX POS AO MIN POS 0% Interval a = Q 100 % 0% 100 % Q 100 % load (number of steps + 1) Locking time (OFFTIME) Additionally, you can enter a common locking time for the relay outputs. This ensures that a step that has just switched off remains off for at least the set period of time.
8.5.3 External preselection (IN X) Maximum selection You can configure an analog input (IN X) as a preselection for the step switch. The controller performs a maximum selection together with the internal signals. Example For example, you can use this feature to implement the following function: DX cooling control, maximum selection between internal temperature control and dehumidification signal from an external dehumidification controller.
8.5.6 Priorities The following 2 priorities apply to the step switch: 1 On / Off during the wiring test. 2 Demand-controlled by the sequence controller (preselection in normal operation) and the external preselection (maximum selection) Configuration 8.5.
8.6 Binary step switch (STEPBIN) 8.6.1 Purpose and activation Purpose of STEPBIN The STEPBIN (binary step switch) function block switches multi-stage aggregates. The aggregates must be sized according to the binary load distribution.
Load connection Load connection applies the following pattern: 3101D20 Y+Q AO STEP 1 1 /16 STEP 2 2 /16 STEP 3 4/ 16 STEP 4 8 /16 0% 100 % Q Y+Q 2 /16 4/ 2 16 /16 AO 2/ 4/ 2/ 1 16 8/ 16 16 16 /16 0% Q Example with 2 digital outputs: Y+Q Y+Q 0Y + 2Q a a a a 1Y + 2Q a S2-ON a a a 3101D21 Switching interval 100 % ¼a STEP 2 S2-OFF S1-ON STEP 1 S1-OFF MAX POS AO MIN POS 0% Locking time (OFFTIME) 100 % Q 0% 100 % Q Additionally, you can enter a common locking t
8.6.3 Maximum selection in case of several preselections External preselection (IN X) You can configure an analog input (IN X) as a preselection for the step switch. The controller performs a maximum selection together with the internal signals. For example, you can use this feature to implement the following function: External control – the RLU236 provides the step switch function only. Note The external signal is considered only if the controller operates in Comfort or Economy mode. 8.6.
Configuration 8.6.6 Settings Path: … > COMMIS > CONF > STEPBIN Display STEP 1 Name Step 1 STEP 2 STEP 3 STEP 4 AO Step 2 Step 3 Speed 4.
8.7 3-position output (3-POINT) 8.7.1 Purpose and activation Purpose of 3-POINT The 3-POINT (3-position output) function block controls a modulating controlling element (valve) with a 3-position actuator (open / standstill / close). This requires 2 switching outputs (open / close). Activation You can only activate the 3-position output in the RLU202 and RLU222 universal controllers. To do so, make setting "3P" on the configuration menu. Relays Q1 and Q2 must not be occupied by other functions.
8.7.3 Maximum selection in case of several preselections Note External preselection (IN X) You can configure an analog input as a preselection for the 3-position output. The controller performs a maximum selection together with the internal signals. For example, you can use this feature to implement the following function: Use of the RLU202 / RLU222 universal controller as DC 0…10 V signal converters => 3position.
Configuration Setting values 8.7.6 Settings Path: … > COMMIS > CONF > 3-POINT Display 3P Name 3-position IN X Preselection external Path: Display ACTTIME Display values Path: Display 3P Wiring test Path: Display 3P Range / comments Activation of 3-position output function; adjustable values: NO, YES ---, X1, X2, … (inputs with identifier % only) … > PARA > 3-POINT Name Actuator running time Range 0.10…10.00 m.s Factory setting 2.00 m.
9 Controller (CTLOOP x) 9.1 General 9.1.1 Purpose and use Purpose of CTLOOP x The CTLOOP x (controller) function block generates a positioning signal based on a comparison of the controlled variable with the selected reference variable in order to control the aggregates assigned to the individual sequences.
9.1.2 Major steps The controllers are configurable for a wide variety of applications. The following table provides an overview of the major steps with reference to the appropriate sections: step 1 2 3 4 9.1.3 Influence of functions Controller configuration procedure Activity Definition of control strategy: What do you want to control and how? • Temperature control • Universal control • Heating / cooling changeover Assignment of appropriate outputs to the individual sequences.
Control strategies controller 1, basic type A 9.2 Control strategies and setpoints for controller 1, basic type A 9.2.1 Selecting the control strategy Controller 1 in basic type A is used for temperature control. Different control strategies are available. The following table shows the dependencies: Control strategy Explanations given in … Room temperature control Subsection 9.2.6 Footnote 3 Supply air temperature control Subsection 9.2.
9.2.2 You can assign individual setpoints for the Comfort and Economy modes.
9.2.
Setting values 9.2.
Activation 9.2.6 Implementation: Room temperature control 9.2.6.1 Activation and setpoints Room temperature control can only be activated for controller 1, basic type A. To activate room temperature control, assign input identifier ROOM to the room temperature. 9.2.6.2 PID control PID control is used to maintain the room temperature at the adjusted setpoint. 9.2.6.
9.2.7 Implementation: Room-supply air temperature cascade controller 9.2.7.1 Activating the cascade controller Activation The cascade controller can only be activated for controller 1, basic type A. To activate room-supply air temperature cascade control, assign one input each to the room and the supply air temperature and select control strategy CAS. Also refer to subsection 9.2.1 ”Selecting the control strategy“.
The following diagram shows the setpoint settings for cascade control, and the principle by which the CTLOOP 1 controller block generates the supply air temperature setpoints SpTSuC and SpTSuH: T T SpTSu LIM SU MIN SU MAX SU DMIN SU DMAX t SpSu SpTSuC SpTSuH TR SETCOOL SETCOOL SETHEAT SETHEAT CTLOOP 1 The following limit values are preselectable for the supply air temperature controller: • • Function diagram SU MAX and SU MIN: Absolute maximum and minimum limitation of the supply air temperature
9.2.7.
9.2.7.5 Plant diagram Application example “Room-supply air temperature cascade controller” The example shown in the following is the programmed standard application with controller type RLU222, basic type A16, for a plant with an air heating coil and air cooling coil. Functions: • • • N.Q1 1 T B5 N.X2 3101S29 Room temperature cascade control Summer / winter compensation Frost protection Fan release • Cascade F3 N.X3 1 T T T B9 B1 M3 N.X4 N.X1 N.Q2 M M Y4 Y3 N.
For controller 1, basic type A 9.2.8 Implementation: Supply air temperature control 9.2.8.1 Activating supply air temperature control Supply air temperature control is always activated for controller 1, basic type A. This control process need not be specifically activated (factory setting). 9.2.8.2 PID control. PID control maintains the supply air temperature at the adjusted setpoint. 9.2.8.
Activation for controller 1 only, basic type A 9.2.9 Implementation: Room temperature control with supply air temperature limitation 9.2.9.1 Activating the control process Room temperature control with supply air temperature limitation can only be activated for controller 1, basic type A. To activate this control strategy, assign one input each to the room and the supply air temperature and select control strategy LIM. Also refer to subsection 9.2.1 ”Selecting the control strategy“. 9.2.9.
Configuration 9.2.9.
9.3 Control strategies and setpoints for universal controllers The control strategies and setpoints for universal control are presented. These are controller 2 in basic type A and controllers 1 and 2 in basic type U. 9.3.1 Selecting the control strategy Controller 2 in basic type A and controllers 1 and 2 in basic type U are intended for universal control. You can select one of 2 control strategies.
9.3.4 Preselections The following applies to controller 2, basic type A, and controllers 1+2, basic type U: • • Influences on the setpoints You can assign individual setpoints for the Comfort and Economy modes. We distinguish between the following setpoints: – SET MIN lower setpoint "Heating" (sequence 1+2) – SET MAX upper setpoint "Cooling" (sequence 4+5) These functions can have an influence on the setpoints: • • Universal setpoint shift Remote setpoint, absolute 9.3.
Controller 2, basic type A; controllers 1+2, basic type U 9.3.7 Settings Path: … > SET Display SET MAX SET MAX SET MAX SET MAX 9.3.
X1 LABEL TEMP AI SIGNAL Y The solar plant switches on as soon as the temperature in the panel (main controlled variable) is 5 K above the storage tank temperature (differential controlled variable): SIGNAL Y Example of solar plant (differential variable) X2 LABEL TEMP Y Y x x LIM SEQLIM x y p y p 1 DV ALM DIFF CTLOOP 1 SEQ1 Y SEQ1 P T SEQ2 Y SEQ2 P MAIN SHIFT SEQ4 Y SEQ4 P SEQ5 Y SEQ5 P T y p Q y p2 3101S28 DO PUMP 1 PUMP 1 108 / 174 Siemens Building Technologies Universal
Plant principle 9.4 Changeover 9.4.1 Activating the controller with changeover The following example shows a changeover plant with supply area, precontrol and room temperature control. The RLU2…(U) precontroller and RLU2…(A) room temperature controller are indicated. RLU2...(A) T T T T RLU2...(U) T Activating the RLU2… (U) primary precontroller 3101S31 T You can activate this control function for all universal controllers, i.e. for RLU202, RLU220, RLU222, RLU232 and RLU236 in basic type U.
9.4.2 Operating principle Control mode PID control controls the main controlled variable according to the defined setpoint. Enabling the sequences The position of the CH OVER digital input determines whether the heating or cooling sequences are enabled: • • Note CH OVER = 0 signifies "enable cooling sequences" CH OVER = 1 signifies "enable heating sequences" The "analog output" aggregate must be configured for heating and cooling sequences, i.
Setpoint preselection The following diagrams illustrate the different setpoint preselections for nonchangeover and changeover systems: Non-changeover system: Sequence controller Heating setpoints less than cooling setpoints e.g.
9.4.4 Main sensor present? When you leave the commissioning menu, the universal controller checks whether a main sensor is connected.
9.4.
Sequence controllers, output assignments 9.5.1 Activating the function block To activate the CTLOOPx sequence controller, assign a main controlled variable to it. The necessary settings are described in chapter 0 “Setting up the control strategy”. 9.5.
9.5.3 Outputs Y and P Assigning outputs to sequences Each sequence has 2 outputs: • • 1 load output SEQx Y 1 pump output SEQx P You can occupy both. 9.5.4 Activation rules Activating the sequences To activate a sequence, assign either a load output or a pump output to it. When neither a load output nor a pump output is assigned to a sequence, this sequence and all subsequent sequences (within heating or cooling) will be deactivated. 9.5.
Application example This example shows a plant with the heating, cooling and dehumidification functions. Assignments: – – – Control loop 1 (room temperature) with sequence 1 (heating) and sequence 4 (cooling) Control loop 2 (room humidity) with sequence 4 (dehumidification) Both controllers (sequences 4) command load output AO2, which transmits the resultant signal to the air cooling valve via output Y2. x x x x x SEQ4 Y SEQ4 P SEQ1 Y SEQ1 P CTLOOP 1 y y2 9.5.
9.5.7 Setting possibilities Control parameters (Xp, Tn, Tv) You can set the following control parameters for each configured sequence: • • • SEQx XP (P-band Xp) SEQx TN (integral action time Tn) SEQx TV (derivative action time Tv) If you use all parameters, the result is a PID control loop.
9.5.8 Delays the integral action component Control timeout In order, for example, to prevent the cooling valve from opening immediately the moment the heating valve has closed, you can enter a control timeout period (TIMEOUT). The controller does not add the integral action component during that period of time. 9.5.9 Troubleshooting Errors in operation If the main controlled variable is not available to the controller (e.g.
Configuration 9.5.
Setting values Path: … > PARA > CTLOOP 1 … > PARA > CTLOOP 2 Display SEQ1 XP SEQ1 TN SEQ1 TV SEQ2 XP SEQ2 TN SEQ2 TV SEQ4 XP SEQ4 TN SEQ4 TV SEQ5 XP SEQ5 TN SEQ5 TV TIMEOUT Display values Path: Name [Sequence 1 \_ ] Xp [Sequence 1 \_ ] Tn [Sequence 1 \_ ] Tv [Sequence 2 \ .._ ] Xp [Sequence 2 \ .._ ] Tn [Sequence 2 \ .._ ] Tv [Sequence 4 _/ ] Xp [Sequence 4 _/ ] Tn [Sequence 4 _/ ] Tv [Sequence 5 _.. / ] Xp [Sequence 5 _.. / ] Tn [Sequence 5 _.. / ] Tv Control timeout Range 0…500 K 00.00…60.00 m.
9.6 Limitation, general (LIM) 9.6.1 Purpose and activation Purpose of LIM The LIM function (general limiting function) overrides the sequence controller's normal control function. Activation: Controller 1, type A To activate the function, select input identifier SAT for the room and the supply air temperature and, in the configuration, in setting value STRATGY, control strategy LIM for controller 1 (also refer to subsection 9.2.1 “Selecting the control strategy”).
Cooling sequence 4+5 active Special case: If cooling sequence 4+5 is enabled, minimum limitation can be set lower by an adjustable value (LIMCOOL). This feature prevents the refrigeration machine from switching off again shortly after switching on in case of multistage (DX) cooling. This function is only active if the main controlled variable and the input for general limitation have the unit °C.
9.6.4 Limit sensor connected? When you leave the commissioning menu, the universal controller checks whether a sensor is connected to the LIM input. • • Configuration Troubleshooting If, at that time, a sensor is connected, but is missing later, a sensor error message is delivered and presented on the display: – "Xx ---" => sensor missing – "Xx ooo" => short-circuit If, at that time, no sensor is connected, limitation will be deactivated 9.6.
9.7 Limitation of individual sequences (SEQLIM) 9.7.1 Purpose and activation Purpose of SEQLIM The SEQLIM function provides limitation for individual sequences. Activation To activate this function, configure the SEQLIM input of the CTLOOP controller. Where: • • • You can only assign analog inputs You can only activate this function once per controller If, at the same time, other influences act on the sequence controller, the priority order according to subsection 9.1.
Application example, HR Anti-icing protection for the HR unit, acting on sequence 1 (Y6), closing. The temperature at limit sensor B21 must, for example, be at least 0 °C (SEQ SET), otherwise throughput will be steplessly limited by Y6.
9.7.3 Sensor connected? When you leave the commissioning menu, the universal controller checks whether a sensor is connected. • • Configuration If, at that time, the sensor is connected, but is missing later, or if there is a shortcircuit in the cable, a sensor error message is delivered and presented on the display: – "Xx ---" => sensor missing – "Xx ooo" => short-circuit If, at that time, the sensor is not connected, limitation will be deactivated 9.7.
9.8 Locking sequences according to the outside temperature 9.8.1 Purpose and activation Purpose This function locks individual sequences depending on the outside temperature. Activation This function is always active if an outside temperature value is available. If other influences act on the sequence controller at the same time, the order of priorities applies as shown in subsection 9.1.4 “Function priorities”. 9.8.
9.8.3 OT sensor signal available? Setting values If there is no outside temperature sensor signal, the controller does not disable the sequences. 9.8.4 Settings Path: … > PARA > CTLOOP 1 … > PARA > CTLOOP 2 Display Name Range LOCK S1 LOCK S2 LOCK S4 LOCK S5 [Sequence 1] outside temp > [Sequence 2] outside temp > [Sequence 4] outside temp < [Sequence 5] outside temp < −50…+250 °C −50…+250 °C −50…+250 °C −50…+250 °C 9.8.
Controller 1, basic type A 9.9 Summer / winter compensation 9.9.1 Activation Summer / winter compensation is only activated for controller 1, basic type A. It is always active if an outside temperature signal is available. 9.9.2 Operating principle This function shifts the room temperature controller's setpoint as a function of the outside temperature.
9.9.3 OT sensor signal available? Setting values Troubleshooting If there is no outside temperature sensor signal, the controller does not shift the setpoint. 9.9.4 Settings Path: … > PARA > CTLOOP 1 Display Name SUM-D Summer compensation delta SUM-END Summer compensation end SUM-STT Summer compensation start WIN-STT Winter compensation start WIN-END Winter compensation end WIN-D Winter compensation delta Range 0…+50 K Factory setting 0K SUM-STT…50 °C 30 °C WIN-STT…SUM-END 20 °C WIN-END..
Controller 1, basic type U, controller 2 9.10 Universal setpoint shift 9.10.1 Activation Universal setpoint shift is available with: • • Controller 1, basic type U only Controller 2 To activate the function, configure an appropriate input. You can only assign analog inputs. 9.10.2 Operating principle Function You can use a universal input to shift the controller's setpoint.
Configuration 9.10.4 Settings Path: … > COMMIS > CONFIG > CTLOOP 1 … > COMMIS > CONFIG > CTLOOP 2 Display SHIFT Setting values Path: Name Universal shift Range / comments Adjustable values: ---, X1, X2, … (analog values only) … > PARA > CTLOOP 1 … > PARA > CTLOOP 2 Display Name Range CMP2D [Setp compensation 2] delta [Setp compensation 2] end [Setp compensation 2] start [Setp compensation 1] start [Setp compensation 1] end −50…+500 K CMP2END CMP2STT CMP1STT CMP1END ...
Deviation message (DV ALM) 9.11.1 Activation For the main controlled variable of an RLU2… universal controller, a deviation message can be generated. To activate the function, connect the DV ALM output of the controller block to any Q… switching output of the RLU2… controller. x SEQ1 Y SEQ1 P SUPPLY CTLOOP 1 SEQ2 Y SEQ2 P x SEQLIM CAS/CON y p y p 1 y p y p Q 3101Z17 x LIM DV ALM x SEQ4 Y SEQ4 P SEQ5 Y SEQ5 P Deviation message relay of universal controller 9.11 Q1...
Notes on use and configuration Note the following points with regard to the deviation message: • • • • • • Configuration Set the message delay time long enough so that the plant does not trigger a fault status message on startup The deviation message always refers to the sequence controller. Therefore, in the case of room-supply air temperature cascade control, it monitors the supply air.
9.11.4 Application example Chilled water flow temperature control Basic type U / flow temperature control for chilled water: Necessary delay time The upper message delay time (DV DLYH) is set to 6 h in this case to avoid unnecessary fault status messages. Note If the setpoint deviation is still present after 6 hours, you can assume that the valves do not close properly.
10 Frost protection (FROST) 10.1 Purpose and types of monitoring Purpose of FROST The FROST (frost protection) function block protects air heating coils against freezing. Types of frost protection monitoring This function is available only once in all devices.
Operating principles and settings 10.3.1 Frost protection unit (DIG) This picture shows an application with an air- or water-side frost protection unit: SIGNAL Y Application example 10.3 X1 DI LABEL FRST x Y T 3101S22 T Note Reliable frost protection depends on correct sensor placement. Frost protection control functions If the temperature falls below the set limit value, the frost protection unit sends a signal to the controller.
Configuration 10.3.2 Settings for the frost protection unit Path: … > COMMIS > CONF > X.. Display LABEL Setting values Display values Path: Name Identification Fault acknowledgement ACTING Control loop with risk of frost Path: Path: Display FROST Range / comments Activation of function with assignment of the FRST value (frost protection) to the input.
10.3.
Function diagram This diagram illustrates the above statements: On Frost alarm 5% 0% 2K TFrst SET-ON Legend SET-ON TFrst Xp Frost hazard limit value Frost temperature P-band Note The frost protection function also remains active when the plant is off. 140 / 174 Siemens Building Technologies Universal Controllers RLU2… Frost protection (FROST) CE1P3101en 29.08.
Configuration 10.3.4 Settings for 2-stage frost protection on the air side Path: … > COMMIS > CONF > X.. Display LABEL Setting values Display values Path: Name Identification SET-ON XP ACK Risk of frost limit P-band Xp Fault acknowledgement ACTING Control loop with risk of frost Path: Path: Display FROST Range / comments Activation of function with assignment of the FRST value (frost protection) to the input.
10.3.
Function diagram This diagram illustrates the above statements: On Frost alarm 5% 0% 2K TFrst SET-ON Legend SET-ON TFrst Xp Frost hazard limit value Frost temperature P-band Behavior if the plant is off If the plant is off, the controller controls the air heating coil temperature to an adjustable plant OFF frost protection (SET-OFF) value with PI control (OFF XP, OFF TN) so that the air heating coil already has stored heat on startup.
Configuration 10.3.6 Settings for 2-stage frost protection on the water side Path: … > COMMIS > CONF > X.. Display LABEL Setting values Path: Name Identification SET-ON XP SET-OFF Risk of frost limit P-band Xp Plant OFF frost protection setp Plant OFF Xp Plant OFF Tn Fault acknowledgement ACTING Path: Display FROST Wiring test Path: Display FROST Range / comments Activation of function with assignment of the FRST value (frost protection) to the input.
10.4 Acknowledgement / reset (AKN) Release conditions The frost protection relay does not release the fan again until frost alarm is no longer pending and the signal has been reset.
10.6 Connection diagram, frost protection unit Connection diagrams You can connect a frost protection unit to the input. It must be connected according to the following diagram: 3101A15 G AC 24 V F3 T G X... M X... G0 M N G0 Connection diagram, water You can connect a passive LG-Ni1000 temperature sensor to the input. It must be connected according to the following diagram: AC 24 V 3101A17 G F3a G X...
10.7 Troubleshooting Frost protection unit Digital signals cannot be monitored. A missing signal (= contact open) is interpreted as a frost alarm, which activates the frost protection function. 2-stage frost protection on the air side A missing signal from the frost sensor is interpreted as a frost alarm, which activates the frost protection function.
Causes for faults 11 Help in the case of faults 11.1 Fault list The following list contains all possible causes for faults, their display and priority. Display Error / fault cause FROST Frost hazard.
Indications and corrective actions 11.2 Rectification of faults 11.2.1 Fault indication The controller presents alarms from the plant with the icon on the display. If is blinking: 1. Press the ESC button to acknowledge the fault status message. °C If is lit: 1. Remove fault. 2. When you have rectified the fault, press the ESC button again to reset the fault status message. If the plant is functioning normally again, STATUS: OK will appear on the display. 11.2.
Terminal connection concept 12 Electrical connections 12.1 Connection rules The following picture shows the terminal base of the RLU236 controller with its connections: – Extra-low-voltage side at the top – Mains voltage side at the bottom Passive sensors / signaling elements / contact sensing M X1 M X2 Active sensors / signaling elements M G1 X3 M Actuator DC 0...
RLU202 X2 M G1 X3 M X4 M G1 Q11 D1 M G0 N1 Q12 Q14 Q23 N2 Q24 G X1 M G0 G1 X2 M G1 Y1 G0 X3 M X4 M G1 G1 Y2 3101G09 RLU220 D1 M G0 RLU222 G X1 M G0 X2 M G1 G1 Y1 G0 X3 M X4 M G1 G1 Y2 Q11 D1 M G0 N1 Q12 Q14 Q23 N2 Q24 RLU232 G G0 RLU236 G G0 Legend X1 M X2 M G1 G1 Y1 G0 X1 M X2 M G1 G1 Y1 G0 G, G0 G1 M G0 N.
13 Appendix 13.1 Abbreviations used To facilitate reading, the most common abbreviations are listed below in alphabetical order.
13.2 Operating texts Synco 200 Operating text Explanation °C Degrees Celsius °F Degrees Fahrenheit %OPEN Outside temp-dependent open 0.0 Universal 000.0 0000 Universal 0000 0-10 DC 0...
Operating texts Synco 200 (cont’d) INVERS Inversion KICK Kick period LABEL Input identifier LIM General limit controller LIM DHI Gen limiter differential high LIM DLO Gen limiter differential low LIM MAX Gen limiter limit value high LIM MIN Gen limiter limit value low LIM TN Gen limiter integr action time Tn LIM XP Mixing valve P-band Xp LOCK S1 [Sequence 1] outside temp > LOCK S2 [Sequence 2] outside temp > LOCK S4 [Sequence 4] outside temp > LOCK S5 [Sequence 5] outside temp >
Operating texts Synco 200 (cont’d) ROOM Room temperature ROOM Actual value room temp ROOM TN Room influence Tn ROOM XP Room influence Xp S V1 Variable step switch 1 S V2 Variable step switch 2 S1-OFF [Step 1] OFF S1-ON [Step 1] ON S2-OFF [Step 2] OFF S2-ON [Step 2] ON S3-OFF [Step 3] OFF S3-ON [Step 3] ON S4-OFF [Step 4] OFF S4-ON [Step 4] ON S5-OFF [Step 5] OFF S5-ON [Step 5] ON S6-OFF [Step 6] OFF S6-ON [Step 6] ON SAT Supply air temperature SBIN Binary step switch
Operating texts Synco 200 (cont’d) SETHEAT Comfort heating setpoint SETHEAT Economy heating setpoint SETHLIM Heating setpoint limitation SET-OFF Plant OFF frost protection setp SET-ON Risk of frost limit SETPOINT Setpoints SETTING Settings SHIFT Universal shift SIGNALY Measured value signal output SLIN Linear step switch START OK Caution! Plant starts STATUS Device state STEP 1 Step 1 STEP 2 Step 2 STEP 3 Step 3 STEP 4 Step 4 STEP 5 Step 5 STEP 6 Step 6 STEP V1 Variable
Configuration diagrams, contents 13.3 Configuration 13.3.1 Explanation of configuration principle The controller includes a large number of preconfigured function blocks. The function blocks available for the various RLU2… universal controllers are shown in the respective configuration diagrams.
Configuration procedure Order: • • Basic configuration (APPL ID) first, then extra configuration (CONFIG) First the input identifiers (LABEL), then the control functions, then the aggregates Wiring choices: • • • • • Use of outputs Yx Always from the arrow to the line From function to input: "x" to "x" From output block to output terminal: Analog "Y" to "Y" Relay "Q" to "Q" From the controller: Load "y" to "y", pumps "p" to "p" The following applies to outputs: • • Connect the output functions to the
13.3.2 Overview of function blocks The following pages provide an overview of the function blocks for the RLU2… universal controllers, including a brief description. Introduction The configuration diagrams for the specific device type indicate how many of each function block are available.
Input identifiers (cont’d) Frost protection SIGNAL Y X1 LABEL FRST Frost protection function optionally for sequence controller 1 or 2: • 2-stage frost protection on the water side (input LG-Ni1000), PI control when plant is off x Y • 2-stage frost protection on the air side (input DC 0…10 V = 0…15 °C) SIGNAL Y [Controller 1] remote setpoint X1 LABEL REM1 • • adjuster REM 1: Absolute for sequence controllers 1 to 2 (0…1000 Ω or DC 0…10 V) [Controller 2] remote setpoint x Y Frost protection u
Control functions (cont’d) MODE (operating Configuration Functions Basic types A and U: Room operating modes.
Aggregates (cont’d) STEP Vx (variable Configuration Functions • Step 1 to … (STEP x) For controlling a multistage aggregate.
13.3.
13.3.
13.3.5 RLU222 configuration diagram LABEL LABEL x Y X4 Type U LABEL x Y x Y 2 MODE y p Q x y1 y2 AO 2 1 x y1 y2 x x HREC 2 PUMP 2 AO 1 AO 2 HREC Y Y Y y1 y2 ....................
13.3.6 RLU232 configuration diagram LABEL x Y y p y1 y2 AO 1 x y1 y2 AO 2 1 CH OVER Q x y1 y2 AO 3 x y1 y2 x x HREC MECH 2 y p MECH 1 Q FROST ALM OFF SEQ4 Y SEQ4 P y p y p MODE 3 2 A0 3 HREC Q Y Y Y Y y1 y2 x y1 y2 x ....................
13.3.7 RLU236 configuration diagram x Y Q y p y p AO 1 x y1 y2 AO 2 1 CH OVER FROST Q x y1 y2 AO 3 x y1 y2 HREC x 3 2 A0 1 A0 2 A0 3 HREC Q Q Y Y Y Y x y1 y2 x y1 y2 IN X x y1 y2 IN X STEP BIN STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 AO STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 AO STEP 1 STEP 2 STEP 3 STEP 4 AO STEP LIN AO STEP V2 x IN X Q Q Y Q Q Q Q Q Q Y Q Q Q Q Q Q Y Q Q Q Q Y Y Y Y1 Y Y2 Y3 x ....................
14 Application examples Introduction The configurations and setting values for a number of typical, simple functions are listed in the following. Note If a sufficient number of inputs and outputs are available, and the functions are switched on or off at the same time, you can also combine these functions. 14.1 Multiple use of sensors Purpose Passive temperature sensor LG-Ni1000 (connected to X1). You want to convert the signal to DC 0…10 V = 0…50 °C (at Y1) for further handling.
14.3 Signal adaptation Purpose You want to adapt a DC 0…10 V signal (at X1) to DC 5…7.5 V (at Y1). Configuration CONF / X1 / LABEL CONF / X1 / SIGNALY CONF / AO 1 / AO CONF / AO 1 / IN X Setting values PARA / D1 / NORMPOS PARA / AO 1 / MIN POS PARA / AO 1 / MAX POS PARA / AO 1 / INVERS 14.4 % --Y1 X1 OPEN 50 % 75 % NO Step switch Purpose You want to convert a DC 0…10 V signal (at X1) and an enable signal (at D1) to a binary step switch signal with 2 steps (at Q1+Q2).
14.5 Modulating / 2-position converter Purpose Switch-on and switch-off command (at Q1) according to the resistance signal from an LG-Ni1000 passive temperature sensor (at X1): ON at 28 °C, OFF at 25 °C. Configuration CONF / X1 / LABEL CONF / X1 / SIGNALY CONF / STEP V1 / STEP 1 CONF / STEP V1 / IN X Setting values PARA / D1 / NORMPOS PARA / X1 / MIN VAL PARA / X1 / MIN VAL PARA / STEP V1 / OFFTIME PARA / STEP V1 / S1-ON PARA / STEP V1 / S1-OFF 14.6 % --Q1 X1 OPEN 0 100 00.
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Index A Abbreviations used in this document.................. 152 Access level, select .............................................. 19 Access levels ........................................................ 19 Application examples Modulating / 2-position converter .................... 170 Multiple sensor use ......................................... 168 Signal adaptation............................................. 169 Signal duplicator.............................................. 170 Signal inversion ...
Control parameters ......................................... 117 Load outputs.................................................... 115 Pump outputs .................................................. 116 Sequence controllers Output assignments ........................................ 114 Setpoint shift, universal....................................... 131 Settings, general................................................... 30 Step switch Binary (STEPBIN) .............................................
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