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SAUTER

flexotron®400 - RDT405

Display and encoder

P100012100

19

Calculated setpoint

In control mode 4, Pressure control with outdoor compensation, the controller
does not work towards a fixed setpoint value. Instead, it works towards a
calculated setpoint, which varies with the outdoor temperature. The calculated
setpoint is displayed by turning the knob clockwise when in the Base Display.

6.1.1

The 10-second level

This level is reached from the Base Display by pressing and holding the encoder
button for 10 seconds. The 10-second level holds all the configuration menus.
See chapter 8 Configuration.

The controller must display the Base Display when pressing the encoder knob
to reach the 10-second level.

6.1.2

Display symbols

«
...
17
18
19
20
21
...
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Summary of Contents for flexotron 400 Series

Page 1: ...SAUTER flexotron 400 RDT405 Manual P100012100 ...

Page 2: ...n in this document is subject to change without prior notification The software described in this document is supplied under license and may be used or copied only in accordance with the terms of the license No part of this document may be reproduced or transmitted in any form in any fashion electronically or mechanically without the express written permission of Sauter TRADEMARKS flexotron is a r...

Page 3: ...ing 9 4 1 Installation 9 4 2 Wiring 9 5 Control modes 11 5 1 Control mode 1 Temperature control 12 5 2 Control mode 2 CO2 control 14 5 3 Control mode 3 General control 0 100 15 5 4 Control mode 4 Pressure control 16 5 5 Control mode 5 Pressure control with outdoor temperature compensation of the pressure setpoint 17 6 Display and encoder 18 6 1 The Basic level 18 7 Setpoint 20 8 Configuration 21 8...

Page 4: ... controller flexotron 400 RDT405 More information More information on RDT405 can be found in flexotron RDT405 controllers Sales brochure RDT405 Installation instructions and abridged manual RDT405 product sheet The information can be downloaded from the Fr Sauter AG website http www sauter controls com en ...

Page 5: ...N i1000 setpoint device for control mode 1 Temperature control The RDT410 has 10 inputs outputs and can be configured to control Temperature ventilation control with heating and cooling Waterheated radiator heating with outdoor temperature dependent control curve or Domestic hot water control There is a analogue input for connection of an external Ni1000 setpoint device for control modes 1 4 The R...

Page 6: ...ut for an external setpoint device Ni1000 1 universal input 0 10 V DC or digital 1 digital input 2 analogue outputs 0 10 V DC Control modes The RDT405 is pre programmed with a choice of 5 different control modes Temperature control CO2 control General control Pressure control Pressure control with outdoor temperature dependent compensation ...

Page 7: ...d IEC EN 61010 1 EMC emissions an immunity standard This product conforms with the requirements of European EMC standards CENELEC EN 61000 6 1 and EN 61000 6 3 and carries the CE mark Inputs AI Resolution 10 bit A D AI1 Ni1000 sensor range 20 140 C divided into three measuring ranges accuracy 0 2 C SPI Ni1000 setpoint device range 0 40 C Reference for AI and for UI when used as an analogue input U...

Page 8: ... max 1 C control mode 1 5 control mode 3 P band CO2 General GEN Pressure Pa 0 100 of UI1 0 100 of UI1 0 300 of UI1 5 of UI1 5 of UI1 5 of UI1 I time 0 990 s 10 s Outdoor compensation start 20 60 C 0 C Pressure at 20 C outdoor temperature 0 Pa 2500 kPa 1000 Pa Accessories External temperature sensors For example EGT330 EGT346 Setpoint device EGT338F102 CO2 sensor EGQ212 Humidity sensor can be used ...

Page 9: ...ation on hand It is important to make sure that the wiring is correctly done in accordance with the instructions given in this manual and in accordance with local legislation for this type of installation Terminal Designation Operation LS Supply voltage 24V MM 2 DI Reference for DI1 3 DI1 Digital input 4 UI Reference for UI1 digital mode 5 UI1 0 10V or digital input 6 Ref for AI1 and UI1 analogue ...

Page 10: ...input may seriously damage the unit Universal input UI The universal input can depending on the choice of application be made to act as either an analogue input or as a digital input When used as an analogue input it is for 0 10 V DC input signals When the Universal input is used as an analogue input it must refer to the terminal or directly to earth When used as a digital input it must refer to U...

Page 11: ...eneral control The actual value at the sensor is kept at the setpoint value by controlling the output signal on AO1 and AO2 AO1 is used for positive direct acting control AO2 for negative reverse acting control A single PI control loop is used 4 Pressure control The pressure at the sensor is kept at the setpoint value by controlling the output signal on AO1 The AO1 inverted signal is received from...

Page 12: ...ng demand the damper on AO2 will first close to the set minimum value before the cooling output on AO1 starts to increase Temperature control is available for three selectable temperature ranges Low range 1 20 60 C Default SP 21 C minSP 18 C maxSP 60 C Mid range 2 20 C 100 C Default SP 55 C minSP 22 C maxSP 100 C High range 3 60 140 C Default SP 95 C minSP 62 C maxSP 140 C DI1 Start signal Normal ...

Page 13: ... mode heating damper the damper will be fully open for temperatures higher than the setpoint On increasing heat demand the damper will first close to the minimum value before the heating output starts to increase In the output mode cooling damper the damper will be fully open for temperatures lower than the setpoint On increasing cooling demand the damper will first close to the minimum value befo...

Page 14: ...inimum value can be set between 0 99 and the maximum value between 1 100 If the min max parameters are accidentally set to overlap one another the max function will be disabled and the output will alternate between the min value and 100 DI1 Start signal Normal control will only be activated when this input is activated closed When the start signal is deactivated the controller will set the output ...

Page 15: ...trol will only be activated when this input is activated closed When the start signal is deactivated the controller will set the outputs to 0 Maximum Limiting RH Max When running humidification with the main sensor in the room it is sometimes desirable to have some sort of maximum limiting on the humidity in the supply duct To create such a limiting function place an on off humidistat such as HSC ...

Page 16: ...put signal of 0 10 V DC for example DSU Pressure ranges of up to 2500 kPa kan be set The AO1 inverted signal is received from AO2 DI1 Start signal Normal control will only be activated when this input is activated closed When the start signal is deactivated the controller will set the output to 0 This input must always be wired since it controls the starting and stopping of normal control Wiring e...

Page 17: ...ation The pressure transmitter must have an output signal of 0 10 V DC for example DSU Pressure ranges of up to 2500 kPa kan be set The temperature range for outdoor temperature will be set to the low range for this control mode 20 60 C DI1 Start signal Normal control will only be activated when this input is activated closed When the start signal is deactivated the controller will set the output ...

Page 18: ... Base Display This is an example of the Base Display the display that is normally shown when there is no operator activity The upper line shows which control mode has been configured in this case control mode 1 Temperature control The bottom line shows the actual value of the main input parameter There are bar graphs showing the current output levels In control mode 1 there are symbols showing how...

Page 19: ...ies with the outdoor temperature The calculated setpoint is displayed by turning the knob clockwise when in the Base Display 6 1 1 The 10 second level This level is reached from the Base Display by pressing and holding the encoder button for 10 seconds The 10 second level holds all the configuration menus See chapter 8 Configuration The controller must display the Base Display when pressing the en...

Page 20: ...al the setpoint is the starting point for the output signal For configurations involving two diverging output signals with neutral zone heating cooling or general control in sequence the setpoint is placed in the middle of the neutral zone For configurations involving two outputs without neutral zone heating heating cooling cooling heating damper or cooling damper the setpoint value is the startin...

Page 21: ...o run The upper text row the lower text row number and the first digit in the menu number show which control mode is at hand 1 Temperature control 2 CO2 control 3 General control 4 Pressure control 5 Pressure control with outdoor compensation 8 1 1 Menu X 1 Output signals Control mode 1 Transmitter range Control modes 2 3 4 and 5 Control mode 1 For temperature control there is a choice of 8 differ...

Page 22: ...a pressure transmitter that will give a 0 10 V output for a pressure range of 0 to 5000 Pa set the value to 5000 Pa Note that for pressure transmitters the pressure depending on the range may be given in Pa or kPa Ranges up to 2500 kPa can be set Also not all values between 0 and 2500 kPa kan be set since this would involve a great amount of twisting on the encoder In the low ranges the values are...

Page 23: ...troller will act as a P controller 8 1 5 Menu 1 5 Damper minimum position Control mode 1 only If you in menu 1 1 have configured output AO2 to be a damper alternative 6 or 7 you can set a minimum value to the damper signal The damper output will then not go lower than the set value during normal operation On shut down however the signal will go to zero and fully close the damper 8 1 6 Menu 2 5 Out...

Page 24: ...erature to reach the pressure set by SPL in menu 5 9 below at an outdoor temperature of 20 C 8 1 9 Menu 5 9 Maximum compensation Control mode 5 only SPL is the setpoint to be held at an outdoor temperature of 20 C The setpoint shift starts when the outdoor temperature falls below the value set in S P in menu 5 7 above and will change linearly with decreasing outdoor temperature reaching SPL when t...

Page 25: ...b On exit from the configuration level you will be returned to the Basic level There is also a time out function that will automatically exit the configuration level after 5 minutes of inaction 8 1 13 Storage of settings All configuration settings become valid as soon as they are entered by klicking the encoder knob They are however not written to the flash memory until you exit the configuration ...

Page 26: ...ng 13 23 Digital inputs 10 Display and encoder 18 E EMC 7 F Factory settings reset to 25 H Humidity control Maximum limiting 15 I Inputs and outputs 6 9 Analogue inputs 10 Analogue outputs 10 Digital inputs 10 Universal inputs 10 Installation 9 I time 23 L LVD 7 M Menu Configuration 21 I E 25 I O 18 25 OK 25 Setpoint 18 20 Mounting 5 R Reset time See I time S Setpoint 20 Start signal 12 14 15 16 1...

Page 27: ...SAUTER flexotron 400 RDT405 Index P100012100 27 Printed in Switzerland Fr Sauter AG Im Surinam 55 CH 4016 Basel Tel 41 61 695 55 55 Fax 41 61 695 55 10 www sauter controls com info sauter controls com ...

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