Siemens Synco 200 Basic Documentation
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Siemens Synco 200 Basic Documentation

Universal controllers rlu2
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See also: Commissioning Manual
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™
Synco
200
Universal Controllers RLU2...
Basic Documentation
Version 2.3
CE1P3101en
29.08.2008
Building Technologies

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  • Page 1 ™ Synco Universal Controllers RLU2… Basic Documentation Version 2.3 CE1P3101en Building Technologies 29.08.2008...
  • Page 2 Siemens Switzerland Ltd Building Technologies Group International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 © 2005-2008 Siemens Switzerland Ltd www.siemens.com/sbt Subject to change 2 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies...

  • Page 3: Table Of Contents

    Remote setpoint, relative (REL)..............49 Outside temperature (OUTS)..............51 Room temperature (ROOM) ..............52 Supply air temperature (SAT) ..............53 Aggregates ....................54 Pump (PUMP x) ..................54 Modulating output (AO)................59 Heat recovery (HREC) ................62 3 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Contents 29.08.2008...
  • Page 4 Electrical connections ................150 12.1 Connection rules ...................150 12.2 Connection terminals of RLU2… universal controllers ......151 Appendix ....................152 13.1 Abbreviations used................152 13.2 Operating texts Synco 200..............153 13.3 Configuration ..................157 Application examples .................168 14.1 Multiple use of sensors .................168 14.2 Signal inversion..................168 14.3 Signal adaptation ..................169...

  • Page 5: About This Document

    Text relating to caution and note added 8.2.5 2 lines relating to outside temperature-dependent on and opening added to table in subsection "Setting values" 8.3.3 Note added 5 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies About this document 29.08.2008...
  • Page 6 "…> PARA > MODE" added to subsection “Setting values” 9.5.2 Texts and graphs modified from subsection “RLU202, RLU220“ 9.5.10 Subsection “Display values“: Sentence after table added 9.6.1 Revised 9.6.3 6 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies About this document 29.08.2008...
  • Page 7 11.1 Column “Effect” with page number references deleted 13.2 Operating texts adapted and reduced to texts effectively required 13.3.2 Revised 13.3.3 Graphs adapted Index list extended 7 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies About this document 29.08.2008...

  • Page 8: Before You Start

    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.
  • Page 9 Siemens assumes no liability to the extent allowed under the law for any losses resulting from a failure to comply with the aforementioned points or for improper compliance of the same.

  • Page 10: Overview

    Flush panel mounting ARG62.201 N3101 frame Housing variants The following pictures show the controller versions with large and small housing variants: RLU202 / RLU220 / RLU222 RLU232 / RLU236 10 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Overview 29.08.2008...

  • Page 11: Equipment Combinations

    Data Sheet "Universal controllers RLU2…" CE1N3101en Installation Instructions for universal controllers RLU2… CE1G3101x1 Operating Instructions for universal controllers RLU2... CE1B3101x1 CE Declaration of Conformity for Synco 200 CE1T3101xx Environmental Declaration for universal controllers RLU202, CE1E3101en01 RLU220, RLU222 Environmental Declaration for universal controllers RLU232,...

  • Page 12: Functions

    Limitation of individual sequences Locking of sequences Frost protection Frost protection unit 2-stage frost protection on the air side 2-stage frost protection on the water side Fan release ALM OFF 12 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Overview 29.08.2008...

  • Page 13: Important Notes

    Only qualified staff trained by Siemens BT may prepare and commission Synco™ 200 products. Operation Only persons trained by Siemens BT or their representatives who are properly informed of the risks may operate Synco™ 200 products. Wiring When wiring, strictly separate AC 230 V mains voltage from AC 24 V safety extra-...

  • Page 14: Operation

    " + " and " – " buttons Navigate and adjust values OK button Confirm navigation and value entries ESC button Return to the previous menu or abort value entries 14 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...
  • Page 15 Function block navigation: Display corresponds to configuration diagram Function block instances Information segments (7 characters): Data point description (mnemonic) Value segments (4 characters): Display of data point values Display of units 15 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...
  • Page 16 Navigate UP or + value Adjustable value Navigate DOWN or – value Note on access level User level is active when neither service level symbol nor password level symbol is displayed. 16 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...

  • Page 17: Operating And Access Levels

    The 2 operating levels are always available regardless of the active access level. The term "data point" In Synco 200, the term "data point" is used as a generic term that includes: in Synco 200 Real data points with a physical connection to the plant, and •...
  • Page 18 1. Press the OK button. 2. Use the navigation buttons to change the value (e.g. to 21.0 °C in this example). 3. Press the OK button => the new value is adopted. 18 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...
  • Page 19 The password level contains the entire menu • After a timeout of 30 minutes (period of time during which the controller is not • operated), the controller switches to the user level 19 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...
  • Page 20 Q2 = 1 (closed) • This Info page shows the state of relay SERVICE outputs Q1…Q3: Q1 = 0 (open) • Q2 = 1 (closed) • Q3 = 0 (open) • 20 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...

  • Page 21: Menu

    At the user level, the OK button switches the menu directly to the SET (setpoint) list, where you can use the " + " (UP) and " – " (DOWN) buttons to select and adjust a setpoint. 21 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...
  • Page 22 OK button. Result: Associated value (30.0) blinks. Press the " + " / " – " buttons to adjust the value, then press the OK button to confirm. 22 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operation 29.08.2008...

  • Page 23: Commissioning

    Commissioning 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. Entering commissioning mode 4.2.1 Initial startup Procedure The controller automatically enters the commissioning menu when the AC 24 V power supply is applied.
  • Page 24 All outputs are set to a defined OFF state • It also deactivates all of the controller's internal safety features! • The submenus of COMMIS (commissioning) appear, the first menu PARA blinks • 24 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Commissioning 29.08.2008...

  • Page 25: Selecting The Basic Configuration

    (pressing OK) the new application, the loaded application will be overwritten. The process can be aborted by pressing the ESC button twice. PASS COMISS APPL ID 25 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Commissioning 29.08.2008...
  • Page 26 Display values Path: INFO Display Name Comments APPL ID Plant type Original (ORIG) Adapted (ADAP) APPL ID Plant type Display of basic type or application number: 26 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Commissioning 29.08.2008...

  • Page 27: Three Ways To Get The Right Application

    Installation Instructions. The complete Application Catalog with all descriptions, diagrams and parts lists is contained in the HVAC Integrated Tool (HIT). For more information about the free HIT, please visit the following intranet page: https://intranet.sbt.siemens.com/hvp/en/technical_support/hit.asp 4.4.2 Adapted application The golden middle The programmed application doesn't quite fit, but an adapted application is described in the Application Catalog.

  • Page 28: Wiring Test

    Connection error (mixed up wires) • Position error (mixed up sensors or actuating devices) • Discrepancies between connection method and controller configuration (LG- • Ni1000 in place of active DC 0…10 V) 28 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Commissioning 29.08.2008...

  • Page 29: Leaving Commissioning

    PASS COMMIS INFO PARA Exit Now press the ESC button twice. The controller will display an Info page like the following if it is in normal mode: PASS 29 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Commissioning 29.08.2008...

  • Page 30: General Settings

    °C, °F °C Device information Display values You can view the SW version at the service and password levels: Path: INFO Display Name Comments SW-VERS Software version 30 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies General settings 29.08.2008...

  • Page 31: Operating Modes

    D1 / D2 (e.g. by an external time switch or manual switch). There are the following 3 operating modes: Comfort • Economy • Protection • 31 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operating modes 29.08.2008...

  • Page 32: Room Mode Selection Via Digital Inputs

    If there is no wire connected to digital input D1, then D1 = 0 • If digital input D1 is set to Protection, Comfort / Economy changeover is • deactivated 32 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operating modes 29.08.2008...
  • Page 33 You can use the digital inputs to switch a plant to OFF. Application example However, all safety-related functions remain active. 33 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operating modes...

  • Page 34: Fan Release / Alm Off

    Activation of function The fan release function is activated by assigning relay Q1 to the respective output on submenu MODE under ALM OFF (fan release relay / alarm OFF). 34 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operating modes...
  • Page 35 … > COMMIS > TEST Display Name Positions ALM OFF Fan release relay YES = fan released / no alarm (relay energized) NO = fault status message (relay deenergized) Fan OFF 35 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Operating modes 29.08.2008...

  • Page 36: Inputs

    Depending on the type of RLU2… universal controller, the following numbers of inputs universal inputs (Xx) are available: Controller type Number of universal inputs Xx RLU202 RLU202 RLU222 RLU232 RLU236 36 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 37 There is a more detailed description for each specific use of the universal inputs in the following sections: Universal inputs used as analog inputs, see 0 • Universal inputs used as digital inputs, see 7.3 • 37 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 38: Analog Inputs X1

    Room temperature with an active DC 0…10 V signal = 0…50 °C: Lower measured value (MIN VAL): 0 °C – Upper measured value (MAX VAL): 50 °C – 38 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 39 The following analog inputs provide special setting values: REMx Absolute setpoint adjuster; see section 7.4 – Relative setpoint adjuster; see section 7.5 – FRST Frost; see section 10 – 39 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 40 2x LG-Ni1000 sensors control process uses them to calculate the average temperature. The sensors must be connected according to the following diagram: B... B... LG-Ni 1000 LG-Ni 1000 X... 40 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 41 A passive setpoint adjuster (e.g. BSG21.1 or QAA25) can be connected to the Connection diagram for 0…1000 Ω input. It must be connected according to the following diagram: QAA25 BSG21.1 X... M X... M 41 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 42 42 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs...
  • Page 43 Fault status messages Display Name Effect Xx --- / ooo Sensor error Non-urgent message; plant not stopped. Xx… However, if sensor is used for the main controlled variable: Plant stopped 43 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 44: Digital Inputs (D1, D2, X1

    (cable break). Setting value ”Normal position”: Closed 44 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 45 Wiring test Path: … > COMMIS > TEST Display Name Positions Indication of present digital signal at terminal D1, non-adjustable Indication of present digital signal at terminal D2, non-adjustable 45 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 46: Remote Setpoint, Absolute (Rem)

    Therefore, the present Comfort cooling setpoint is: • = remote setpoint + (Comfort cooling setpoint minus Comfort heating setpoint) Setpoints for Economy The Economy setpoints are shifted in the same way. 46 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 47 If more than one input has been activated as the remote setpoint adjuster for the same controller, the controller only accepts the first input. Note Remote setpoint adjusters BSG21.2, BSG21.3, BSG21.4 and QAA26 are not supported. 47 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 48 Indication of present remote setpoint adjuster value at terminal Xx, non-adjustable Fault status messages Display Name Effect Xx --- / ooo Sensor error X… Non-urgent alarm; plant not stopped 48 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 49: Remote Setpoint, Relative (Rel)

    X dz for the permanently preselected setpoints. Yctl SET MAX SET MIN REL + SET MIN Setpoints for Economy The Economy setpoints are shifted in the same way. 49 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...
  • Page 50 Indication of present relative remote setpoint adjuster value at terminal Xx, non-adjustable Fault status messages Display Name Effect Xx --- / ooo Sensor error X… Non-urgent message; plant not stopped 50 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 51: Outside Temperature (Outs)

    Indication of outside temperature (at terminal Xx and as special data point OUTS), non-adjustable Fault status messages Display Name Effect Xx --- / ooo Sensor error X… Non-urgent message; plant not stopped 51 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 52: Room Temperature (Room)

    Indication of room temperature (at terminal Xx and as display value ROOM), non- adjustable Fault status messages Display Name Effect Xx --- / ooo Sensor error X… Non-urgent message; plant not stopped 52 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 53: Supply Air Temperature (Sat)

    Indication of supply air temperature (at temperature terminal Xx and as display value SAT), non-adjustable Fault status messages Display Name Effect Xx --- / ooo Sensor error X… Non-urgent message, plant not stopped 53 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Inputs 29.08.2008...

  • Page 54: Aggregates

    Max. 2 RLU202 None RLU222 Max. 2 RLU232 Max. 2 RLU236 Max. 3 Activation For activation, you must assign a switching output (Qx) to pump control (PUMP x). 54 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 55 (refer to section 8.1.5 "Priorities“). The pump kick is executed periodically every “n” hours by setting the kick period. Kick period = 0: No pump kick. 55 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates...
  • Page 56 3 ON due to "ON according to outside temperature" 4 ON due to pump kick 5 ON depending on demand (refer to sequence controller; subsection 9.5.6 “Pump outputs”) 56 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 57 Wiring test Path: … > COMMIS > TEST Display Name Positions PUMP 1 Pump 1 Off, On… PUMP 2 Pump 2 Off, On… PUMP 3 Pump 3 Off, On… 57 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 58 Pump used as a load-dependent recooling pump on a multistage refrigeration Load-dependent recooling pump machine: LABEL TEMP SHIFT SEQLIM CTLOOP 1 y p y p AO 1 PUMP 1 58 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 59: Modulating Output (Ao)

    If the controller has an analog output and is switched off during operation (input D1 = Protection), the output signal behaves as follows: INVERS = NO: 0% output INVERS = YES: 100% output 59 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 60 Observe hardware restrictions! Note If, with the %OPEN function activated, the outside temperature sensor is missing, the valve opens until the entered position is reached and then maintains that position. 60 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 61 … > COMMIS > TEST Display Name Positions AO 1 Modulating output 1 ---, 0…100 % AO 2 Modulating output 2 ---, 0…100 % AO 3 Modulating output 3 ---, 0…100 % 61 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 62: Heat Recovery (Hrec)

    RLU2.. universal controller with the internal maximum economy changeover (MECH), for example. Note The external signal is considered only if the controller operates in Comfort or Economy mode! 62 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 63 You can implement a minimum air damper position using the minimum positioning signal (MIN POS). Note The controller does not give consideration to MIN POS and MAX POS in Protection mode. 63 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 64 Changeover at an adjustable difference with air damper as first cooling • sequence The 3 possibilities and the 2 special application examples are explained on the following pages. 64 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 65 HR output (HREC) Operated position => no inversion of HR output (HREC) CTLOOP 1 y1 y2 HREC SETCOOL Application example Changeover via an external actuating device (digital input). 65 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 66 Changeover at an outside temperature >25 °C • Changeover at an outside enthalpy > 30 kJ/kg • Changeover via an external enthalpy difference processor at an • enthalpy difference ≥ 2 kJ/kg 66 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 67 Changeover at a temperature difference of: • Outside temperature minus room temperature ≥ 3 K Changeover at a temperature difference of: • Outside temperature minus exhaust air temperature ≥2 K 67 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 68 => no inversion of air damper output (HREC) externally via digital Operated position => inversion of air damper output (HREC) signal with air damper as first cooling sequence CTLOOP 1 y1 y2 HREC SETCOOL 68 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 69 Function with TYPE = DMP and control via the cooling sequence: When the set MECHU limit value (MECHSET) is exceeded, the air damper cooling sequence output (HREC) will be inverted. ROOM OUTS CTLOOP 1 y1 y2 HREC SETCOOL 69 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 70 > 00.00. When the plant is started up, the air damper operates according to the following diagram: 70 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates...
  • Page 71 Function diagram Starting time 71 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 72 The COOLER function is also available for mixing dampers. Example Dehumidification and heating in a partial air conditioning system 3140S29de Process without cooling valve setting: Process with cooling valve setting: 72 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 73 If the second MECH input does not have the same unit as the first MECH input, only the first input is used for changeover. If no input or only the second input is configured, changeover is deactivated. 73 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 74 INFO Display values Display Name Comments HREC Mixing damper/HR 0…100 % Wiring test Path: … > COMMIS > TEST Display Name Positions HREC Mixing damper/HR ---, 0…100 % 74 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 75: Variable Step Switch (Step Vx)

    20 % 40 % 60 % 80 % 100 % If the step switch is controlled by 2 internal sequence controllers, the larger signal is effective (maximum selection). 75 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 76 You cannot enter an overrun time for the step switches, since there are no open- step switch loop control functions in the Synco 200 product range. Note If the variable step switch is controlling an electric air heater battery, you must solve the fan overrun time using external means.
  • Page 77 ---, Q1, Q2, … (free outputs only) Modulating ---, Y1, Y2, … (free outputs only) output IN X Preselection ---, X1, X2, … (inputs with identifier % only) external 77 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 78 STEP x Variable step switch 1, step x ON, OFF STEP V2 Variable step switch 2 ---, 0…100 % STEP x Variable step switch 2, step x ON, OFF 78 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 79: Linear Step Switch (Steplin)

    1 linear step switch with a maximum of: 6 relay outputs – 1 modulating output – Activation To activate the linear step switch, assign a relay Q… to the STEP 1 output. 79 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 80 STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 100 % STEP 6 STEP 5 STEP 4 STEP 3 STEP 2 STEP 1 100 % 80 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 81 Week 3: 3, 4, 1, 2 Week 4: 4, 1, 2, 3 Week 5: 1, 2, 3, 4 Etc. In the event of a voltage drop, priority changeover is reset. Note 81 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 82 Switch positions The switch has the following positions: • 0…100 % • Note Settings such as INVERS, MIN POS and MAX POS are also effective during the wiring test. 82 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 83 ON, OFF Wiring test Path: … > COMMIS > TEST Display Name Positions STEPLIN Linear step switch ---, 0…100 % STEP x Linear step switch, step x ON, OFF 83 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 84: Binary Step Switch (Stepbin)

    Q1= 1/4 Q2= 2/4 1Y+3Q Y= 1/8 Q1= 1/8 Q3= 2/8 Q3= 4/8 1Y+4Q Y= 1/16 Q1=1/1 Q2=2/1 Q3=4/1 Q4=8/1 Explanation 0Y = no analog output 1Y = 1 analog output 84 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 85 If a relay output is locked, all relays with less power will be energized for the duration if required by the sequence controller in order to prevent a total power drop off. Application example: Control of refrigeration machine 85 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates...
  • Page 86 Priorities 1 On / Off during the wiring test 2 According to the positioning signal from the sequence controller (preselection in normal operation) or an external signal (maximum selection) 86 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates...
  • Page 87 ON, OFF Wiring test Path: … > COMMIS > TEST Display Name Positions STEPBIN Binary step switch ---, 0…100 % STEP x Binary step switch, step x ON, OFF 87 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 88: 3-Position Output (3-Point)

    1.5 times the entered actuator running time (ACTTIME). If the actuator shall maintain the end position, end position synchronization (see above) is repeased at 10-minute intervals. 88 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...
  • Page 89 The following 2 priorities apply to the 3-position output: 1 On / Off during the wiring test 2 According to the positioning signal from the sequence controller (preselection in normal operation) and external preselection (maximum selection) 89 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates...
  • Page 90 0.10…10.00 m.s 2.00 m.s Display values Path: INFO Display Name Comments 3-position 0…100 % Wiring test Path: … > COMMIS > TEST Display Name Positions 3-position ---, OPEN, CLOSE 90 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Aggregates 29.08.2008...

  • Page 91: Controller (Ctloop X)

    Room or extract air temperature controller – Universal controller for: Humidity, dew point, indoor air quality, pressure, volumetric flow Controller 2 is used as a universal controller with all basic types. 91 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 92 1 Frost protection FROST 2 Locking sequences according to the outside temperature 3 Limiting an individual sequence SEQLIM 4 Limitation, general, LIM 5 Sequence controller 92 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 93: Control Strategies And Setpoints For Controller 1, Basic Type A

    - applies to room-supply air temperature cascade control and room temperature control with supply air temperature limitation – control strategy “Supply air temperature control” is automatically activated 93 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 94 / winter compensation, nor other functions. The factory setting is 250 °C, whichmeans that the function is deactivated. Yctl Yctl SETHLIM SETHLIM SETCLIM SETCLIM SETHEAT SETHEAT SETCOOL SETCOOL 94 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 95 Meaning of input signal: 0 = room-supply air temperature cascade control 1 = supply air temperature control (constant) STRATGY Control strategy Adjustable values: ---, LIM, CAS (factory setting: CAS) 95 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 96 -50.0…250 °C 0 °C limitation SETHLIM Heating setpoint -50.0…250 °C 250 °C limitation Note This setting can only be made on controller 1 in basic type A. 96 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 97 (MAINALM): 9.2.6.4 Settings Configuration Path: … > COMMIS > CONF > CTLOOP 1 Display Name Setting STRATGY Control strategy 97 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 98 The result is a PI+PID room-supply air temperature cascade control process. The room temperature controller sets the present setpoints SpTSuC and SpTSuH for the supply air temperature controller within the selected limit values. 98 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 99 SpSu Actual value room temp SU DMAX SU MAX Supply air temp limit value max Supply air temp limit value min SU MIN SU DMIN 99 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 100 16 °C value min SU DMIN Min limitation supply 0…50 K 50 K air delta SU DMAX Max limitation 0…50 K 50 K supply air delta 100 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 101 N.D1 Controller sequences: Function diagrams Yctl SpTSuH SpTSuC Preselected setpoints for supply air temperature control: SpTSu SU MAX SU MIN SETHEAT SETCOOL Summer / winter compensation: 101 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 102 (MAINALM) 9.2.8.4 Settings Configuration Path: … > COMMIS > CONF > CTLOOP 1 Display Name Setting STRATGY Control strategy 102 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 103 (room temperature control without supply air temperature limitation) If, at that time, no room temperature sensor is connected (main controlled • variable in this case), the plant will be shut down (MAINALM) 103 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 104 Reduction min 0…10 K limitation cooling LIM XP Gen limiter P-band 0…500 K 15 K LIM TN Gen limiter integr 00.00…60.00 m.s 02.00 m.s action time Tn 104 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 105: Control Strategies And Setpoints For Universal Controllers

    To activate the controller, assign the main controlled variable (MAIN). The choice of main controlled variable determines the physical unit. 9.3.3 Operating principle PID control PID control maintains the main controlled variable at the adjusted setpoint. 105 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 106 Activation of main controlled variable. Adjustable values: ---, X1, X2, … (analog values only) DIFF Differential input Activation of difference control Adjustable values: ---, X1, X2, … (analog values only) 106 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 107 The chilled ceiling's flow temperature is controlled to an absolute value: (absolute variable) LABEL TEMP SHIFT SEQLIM CTLOOP 1 y p y p PUMP 1 AO 1 107 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 108 5 K above the storage tank temperature (differential controlled variable): LABEL LABEL TEMP TEMP SHIFT SEQLIM CTLOOP 1 y p y p PUMP 1 108 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 109: Changeover

    The individual sequences can be deactivated via the parameter menu so that the second heating sequence can be used separately for reheating, for example. 109 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 110 You can preselect individual setpoints for the Comfort and Economy modes. controller 1 We distinguish between the setpoints for: Precontroller "Heating" (sequence 1) • Precontroller "Cooling" (sequence 4) • 110 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 111 Remote setpoint, absolute (refer to section 7.4) • Basic type U, Sequence controller 2 always operates in the same mode as sequence controller 1, but it has no changeover functionality. controller 2 111 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 112 Economy 0…100 °C 19 °C 40 °C heating setpoint Display values Path: INFO Display Name Comments CH OVER 2-pipe heating/cooling system Present COOL / HEAT state 112 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 113 Example 2: Individual room control with air heating / air cooling coil (basic type • Diagram for example 2, This example corresponds to application RLU220 / A09 from the programmed individual room control standard applications: FRST CTLOOP 1 113 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 114: Sequence Controllers, Output Assignments

    Sequence 1 or 4 • 2 sequences: Sequence 1+4 • Function diagram The following diagram shows the sequences and their directions of action: Seq 1 Seq 4 SET MAX 114 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 115 Only one load output can be assigned to each sequence. However, each load output can be commanded by up to 2 sequences (from the same or different control loops). 115 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 116 This example shows an air heating coil with a valve and pump. Both are controlled Application example by sequence 2; the pump is controlled via pump output SEQ2 P: SHIFT SEQLIM CTLOOP 2 AO 1 PUMP 1 116 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 117 Increase Tn if the control loop starts hunting again. 4. Add Tv again, starting with the value shown above. Reduce Tv if the control loop starts hunting again. 117 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 118 If individual sequences do not have outputs assigned to them, they and all • subsequent sequences are inactive The possible combinations are described in subsection 9.5.2 “Structure of the sequence controller” 118 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 119 ---, pump 1…3 Configuration note The configuration shown above is designed for a RLU236 controller, but different aggregates are available with each type; refer to section 2.4 “Functions". 119 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 120 See comment above _/ / [Sequence 5] load output See comment above Inverted sequences are also shown inverted, e.g. [Sequence 1] load output analog output is inverted: /_ 120 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 121: Limitation, General (Lim)

    Supply air temperature or supply air humidity limitation: Limitation max [LIM MAX] Setpoint adjustment [LIM MIN] − [LIM COOL] Limitation min Acts an all sequences !! Not meaningful with cascade control !! 121 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 122 This Info page shows 23.4 °C as the actual value of the supply air temperature at left, and the relevant limit temperature of 35 °C at right. 122 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 123 Reduction min 0…10 K limitation cooling LIM XP Gen limiter P-band 0…500 K 15 K LIM TN Gen limiter integr 00.00…60.00 m.s 02.00 m.s action time Tn 123 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 124: Limitation Of Individual Sequences (Seqlim)

    PI control (SEQ XP, SEQ TN) overrides the normal control function to maintain the limit setpoint. Minimum limitation causes the relevant sequence to close; the other sequences are not affected. 124 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 125 Maximum limitation causes the sequence to close. Application example, air Maximum limitation of the return temperature (TRL), acting on sequence 1 / valve heater Basic diagram Function diagram Yctl SEQ1 Y SpTSuH 125 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 126 Input signal range 1 °C SEQ XP Seq limiter P-band Xp Input signal range 10 K SEQ TN Seq limiter integr action time 00.00…60.00 m.s 01.00 m.s 126 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 127: Locking Sequences According To The Outside Temperature

    If, for example, sequence 1 is locked, the controller uses sequence 2 for heating (sequence 1 does not delay the control process). 127 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x)
  • Page 128 [Sequence 5] outside temp < 9.8.5 Application example Preheater Disabling a preheater on sequence 2 at temperatures above 10 °C. Function: Valve fully closed, pump off. 128 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 129: Summer / Winter Compensation

    Summer compensation to compensate for the lighter clothing worn by building • occupants Winter compensation to compensate for cold surfaces in the room, such as the • windows 129 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 130 Summer compensation WIN-STT…SUM-END 20 °C start WIN-STT Winter compensation start WIN-END...SUM-STT 0 °C −50 °C…WIN-STT −10 °C WIN-END Winter compensation end Winter compensation delta −50…+50 K WIN-D 130 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 131: Universal Setpoint Shift

    "Xx ---" => sensor missing – "Xx ooo" => short-circuit – If, at that time, the sensor is not connected, setpoint compensation will be • deactivated 131 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 132 CMP1STT [Setp compensation 1] CMP1END... 0 °C start CMP2STT [Setp compensation 1] end −50 °C… CMP1STT −10 °C CMP1END −50…+500 K CMP1D [Setp compensation 1] delta 132 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 133: Deviation Message (Dv Alm)

    Bell icon blinks • Sequence controller 1 icon is visible • Indication whether the deviation occurred in the heating or cooling sequences • SERVICE 133 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 134 DV ALM Deviation message Indication of current state: Off, On Wiring test Path: … > COMMIS > TEST Display Name Positions DV ALM Deviation message Off, On 134 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...
  • Page 135 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. 135 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Controller (CTLOOP x) 29.08.2008...

  • Page 136: Frost Protection (Frost)

    If, at the same time, other influences act on the sequence controller, the priority • order according to subsection 9.1.4 “Function priorities” applies 136 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST)

  • Page 137: Operating Principles And Settings

    The frost protection function with frost protection unit is activated in all operating modes (Comfort, Economy, Protection). Therefore, it also overrides limitations and disabling as a function of the outside temperature! 137 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 138 Path: INFO Display Name Comments FROST Actual value frost protection Wiring test Path: … > COMMIS > TEST Display Name Positions FROST Actual value frost protection 138 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 139 If 2 controllers are configured in the RLU2…, the second (other) control loop is • switched off as well The outside air dampers are closed • 139 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 140 Frost alarm TFrst SET-ON SET-ON Frost hazard limit value Legend TFrst Frost temperature P-band Note The frost protection function also remains active when the plant is off. 140 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 141 Path: INFO Display Name Comments FROST Actual value frost protection Wiring test Path: … > COMMIS > TEST Display Name Positions FROST Actual value frost protection 141 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 142 If 2 controllers are configured in the RLU2…, the second (other) control loop is • switched off as well The outside air dampers are closed • 142 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...
  • Page 143 This function acts on all heating sequences of the configured control loop (including step switches but: The outside air damper remains closed (refer to section 8.3 "Heat recovery (HREC)”) 143 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST)
  • Page 144 Path: INFO Display Name Comments FROST Actual value frost protection Wiring test Path: … > COMMIS > TEST Display Name Positions FROST Actual value frost protection 144 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...

  • Page 145: Acknowledgement / Reset (Akn)

    2. Press the ESC button again => resets the fault See also subsection 11.2.2 “Fault acknowledgement”. 10.5 Display The controller displays a pending frost alarm as follows: Pending frost alarm °C 145 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...

  • Page 146: Connection Diagrams

    X... M G1 Legend for the QAF63.2 frost protection unit with capillary (air) connection diagrams QAE2120.010 immersion temperature sensor (water) QAM2161.040 frost sensor (air) RLU2… universal controller 146 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST) 29.08.2008...

  • Page 147: Troubleshooting

    Response with several If more than one input is configured as a frost protection input, the controller inputs accepts the first configured input as the frost protection input. 147 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Frost protection (FROST)

  • Page 148: Help In The Case Of Faults

    X5 - - - / ooo Sensor error X5 Type: Simple alarm STATUS OK Display in normal operation Legend Display Meaning - - - Open circuit Short-circuit 148 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Help in the case of faults 29.08.2008...

  • Page 149: Rectification Of Faults

    A frost protection sensor is installed in the plant. In case of a fault, you have to acknowledge and reset it via the user interface. Only then will the plant restart. 149 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Help in the case of faults 29.08.2008...

  • Page 150: Electrical Connections

    Strip the wire over a length of 7…8 mm Position the wire and screwdriver (size 0 to 1) Apply pressure with the screwdriver while inserting the wire Remove screwdriver 150 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Electrical connections...

  • Page 151: Connection Terminals Of Rlu2

    Digital signal inputs for potential-free contacts (contact sensing) Y1…3 Control and status signal outputs, analog DC 0…10 V Q… Potential-free relay outputs (NO / changeover) for AC 24…230 V 151 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Electrical connections 29.08.2008...

  • Page 152: Appendix

    Integral action time Room or extract air temperature Return temperature Supply air temperature Water temperature Setpoint Actual value X dz Dead zone P-band Y, Yctl Controller output Supply air 152 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...

  • Page 153: Operating Texts Synco 200

    13.2 Operating texts Synco 200 Operating text Explanation °C Degrees Celsius °F Degrees Fahrenheit %OPEN Outside temp-dependent open Universal 000.0 0000 Universal 0000 0-10 DC 0...10 V 2xNI 3-position 3-POINT 3-position output Basic type A room temp ACCESS Access levels...
  • Page 154 O perating texts Synco 200 ( cont’d) INVERS Inversion KICK Kick period LABEL Input identifier 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...
  • Page 155 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...
  • Page 156 O perating 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...

  • Page 157: Configuration

    If you change an input identifier (LABEL), all of the settings associated with it • also change (e.g. Xp used to be 28 K, and now it is 10 Pa) 157 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 158 Each output function has no more than 2 load signal inputs with maximum • selection. Example: The air cooling coil valve opens if the room temperature or room air humidity is too high 158 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix...
  • Page 159 • Summer / winter compensation OUTS • Sequence locking according to the outside temperature • Pump ON at low outside temperatures • Maximum economy changeover of air dampers 159 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 160 Deviation message output (DV ALM) sequence (closing) • Universal shift • Locking the sequence according to the outside temperature • Fault status message for inadmissible control deviation can be activated 160 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 161 • Adjustable "Positioning signal min“ and "Positioning signal max" • Settable inversion • External load signal can be applied • Mixed air temperature control • Startup function according to the outside temperature 161 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 162 For controlling a 3-position actuator. • • End stop synchronization “External preselection” input (IN 3 POINT • External load signal can be applied • Actuator running time adjustable 162 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 163 PUMP 1 PUMP 2 y1 y2 IN X Stufenschalter LIN STEP V1 Stufenschalter BIN 3 POINT 163 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 164 LABEL SEQLIM CAS/CON SHIFT SEQLIM FROST CTLOOP 1 CTLOOP 1 MODE y1 y2 y1 y2 y1 y2 HREC AO 1 AO 2 Cooler ....Stufenschalter LIN Stufenschalter BIN 164 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 165 HREC PUMP 1 PUMP 2 AO 1 AO 2 Cooler ....y1 y2 IN X STEP V1 3 POINT 165 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 166 AO 1 AO 2 AO 3 HREC PUMP 1 PUMP 2 Cooler ....y1 y2 y1 y2 IN X IN X IN X STEP BIN STEP LIN STEP V1 166 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...
  • Page 167 IN X IN X STEP V1 STEP V2 STEP LIN STEP BIN Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q 167 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Appendix 29.08.2008...

  • Page 168: Application Examples

    PARA / D1 / NORMPOS OPEN PARA / AO 1 / MIN POS PARA / AO 1 / MAX POS 100 % PARA / AO 1 / INVERS 168 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Application examples 29.08.2008...

  • Page 169: Signal Adaptation

    CONF / STEPBIN / STEP 1 CONF / STEPBIN / STEP2 CONF / STEPBIN / IN X Setting values PARA / D1 / NORMPOS CLSD PARA / STEPBIN / OFFTIME 00.00 169 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Application examples 29.08.2008...

  • Page 170: Modulating / 2-Position Converter

    You want to transmit a DC 0…10 V signal (at X1) as an active output (at Y1). CONF / X1 / LABEL Configuration CONF / X1 / SIGNALY 170 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Application examples...
  • Page 171 171 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Application examples 29.08.2008...

  • Page 172: Index

    Room temperature (ROOM):........ Description ............136 Example of frost protection unit....... Scope of functions ..........Selecting the basic configuration......25 Implementation Sequence controller Room temperature control......... 97 172 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Index 29.08.2008...
  • Page 173 Example of solar plant ........108 Binary (STEPBIN) ..........84 Linear (STEPLIN)..........Variable (STEP Vx) ........... 75 Wiring test .............28 Summer / winter compensation ......Supply air temperature (SAT) ....... 173 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies Index 29.08.2008...
  • Page 174 Siemens Switzerland Ltd Building Technologies Group International Headquarters Gubelstrasse 22 CH-6301 Zug Tel. +41 41-724 24 24 Fax +41 41-724 35 22 © 2006-2008 Siemens Switzerland Ltd www.siemens.com/sbt Subject to change 174 / 174 Siemens Universal Controllers RLU2… CE1P3101en Building Technologies...

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