PMA Digital 280-1 Operating Manual
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PMA Digital 280-1 Operating Manual

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PMA Prozeß- und Maschinen-Automation GmbH
Digital 280-1
digital indicator
Digital 280-1
Digital 280-1
Operating manual
English
9499-040-67311
Valid from: 8415

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Summary of Contents for PMA Digital 280-1

  • Page 1 PMA Prozeß- und Maschinen-Automation GmbH Digital 280-1 digital indicator Digital 280-1 Digital 280-1 Operating manual English 9499-040-67311 Valid from: 8415...
  • Page 2 General information General warning Attention: ESD sensitive devices © PMA Prozeß- und Maschinen-Automation GmbH • Printed in Germany All rights reserved. No part of this document may be reproduced or published in any form or by any means without prior written permission from the copyright owner.

  • Page 3: Table Of Contents

    Configuration examples ..... . 34 5.3.1 On-Off controller / Signaller (inverse) ....34 Digital 280-1...
  • Page 4 5.3.4 Digital 280-1 with measured value output ....37 Parameter setting level ..... . 39 Parameter survey .

  • Page 5: Mounting

    Mounting Mounting max. 60°C min. 0°C max. 95% rel. Digital 280-1 OUT1 OUT2 OUT3 FUNC +0,8 (3.78") +0.03 (3.62" 10V i mA/Pt security switch Ü Ü Loc 10V mA/Pt Safety switch: For access to the safety switches, the indicator must be withdrawn from the hou- sing.

  • Page 6: Electrical Connections

    Power supply connection 1 See chapter 10 "Technical data" Connection of input INP1 2 Input for variable x1 (process value) a thermocouple b resistance thermometer (Pt100/ Pt1000/ KTY/ ...) potentiometer d current (0/4...20mA) voltage (-2,5...115/-25...1150/-25...90/ -500...500mV) voltage (0/2...10V/ -5...5V) Connecting diagram Digital 280-1...
  • Page 7 7 8 di2/3, U 2-wire transmitter supply 6 OUT3 transmitter supply Option +24VDC 17,5V 22mA 22mA OUT3 If U and the universal output OUT3 is used there may be no external galvanic connection between measuring and output circuits! Digital 280-1 Terminal connection...

  • Page 8: Terminal Connection

    DATA B (16) (16) (16) DATA A DATA A DATA A interface converter RS485-RS232 max. 1000m RGND optional connection twisted pair R = line resistance * Interface description Modbus RTU in seperate manual: see page . Terminal connection Digital 280-1...
  • Page 9 Electrical connections Connecting exampleDigital 280-1: fuse fuse fuse TB 40-1 temperature limiter Digital 280-1 contactor Logic reset- switch heating 1 TB 40-1 temperature limiter standard-version (3 relay) TB40-100-0000D-000 further versions on demand CAUTION: Using a temperature limiter is recommendable in systems where overtemperature implies a fire hazard or other risks.

  • Page 10: Operation

    Operation Operation 3.1 Front view Digital 280-1 OUT1 OUT2 OUT3 FUNC 1 measured value display 2 statuses of switching outputs OuT. 1 ... 3 (or alarm statuses) 3 lit with self-tuning activated 4 lit with tare or sample & hold function activated...

  • Page 11: Operating Level

    Additionally, determination whether a digital input or key è should delete the ma- ximum value is possible during configuration (rES. H ). Deleting the minimum and maximum values can be done also via interface. When switching off Digital 280-1, minimum and maximum values are deleted. Digital 280-1 Operating level...

  • Page 12: Tare Function

    Sample & hold can be activated during configuration (Func r Fnc. 1 = 2). Dependent of configuration, sample & hold can be made effective via one of the digital inputs di1, di2, di3,the -key or via interface (LOGI r HOLd). è Digital 280-1 Operating level...

  • Page 13: O2 Measurement

    For measurement, lambda probes (λ probes) are used. The electromotive force (in Volt) supplied by the λ probes is dependent of the instantaneous oxygen content and of the temperature. Therefore, Digital 280-1 can display accurate measurement results only, provided that the probe tempera- ture is known to the indicator.

  • Page 14: Extended Operating Level

    (engineering tool). Parameters which are important or which are used fre- quently can be copied into the extended operating level. Actuating key Ù switches to the first value of the extended operating level (may be Digital 280-1 preceded by error list or set-point). OUT1 OUT2...

  • Page 15: Alarm Handling

    HYS. 1 HYS. 1 HYS. 1 HYS. 1 normally closed ( ConF / Out. x / O. A ct = 0 ) normally open ( ConF / Out. x / O. A ct = 1 ) Digital 280-1 Operating level...

  • Page 16: Maintenance Manager / Error List

    Fnc. x = 2), the alarm relay remains switched on until the alarm is resetted in the error list ( Lim 1..3 = 1) or via interface. 3.4 Maintenance manager / Error list Digital 280-1 In case of one or several errors, the extended operating OUT1 OUT2 level always starts with the error list.

  • Page 17: Controller

    Controller Controller In addition to the simple indicator function, Digital 280-1 can be used also as a signaller or an on/off controller, as a two point or a continuous controller. Prerequisite: Digital 280-1 is fitted with option “with outputs” and is configured for the controller function.

  • Page 18: Self-Tuning

    Self-tuning start can be locked via BlueControl (engineering tool) ( P. L oc). ti and td are taken into account only, if they were ≠ OFF previously. 4.3.1 Self-tuning start ( Ù + È ) Digital 280-1 The operator can start self-tuning at any time. For OUT1 OUT2 this, keys Ù...

  • Page 19: Acknowledgement Procedures In Case Of Unsuccessful Self-Tuning

    The Err LED continues blinking, until the self-tuning error was acknowledged in the error list. 2. Press key Ù : Display of error list at extended operating level. After acknowledgement of the error message, the controller continues control using the old parameters. Digital 280-1 Self-tuning...

  • Page 20: Examples For Self-Tuning Attempts

    Values T and x (step change from 0 to 100 %) or ∆t and ∆x (partial step response) can be used to determine the maximum rate of increase v Digital 280-1 Manual tuning...
  • Page 21 2 * Tu With 2-point and 0,5 * K 3-point controllers, 2,6 * K 6 * Tu the cycle time must be adjusted to t1 / t2 £ 0,25 * Tu 3-point-stepping 1,7 * K 2 * Tu Digital 280-1 Manual tuning...

  • Page 22: Operating Structure

    Controller 4.5 Operating structure After supply voltage switch-on, the controller starts with the operating levels. Digital 280-1 Digital 280-1 OUT1 OUT1 Ù Ù OUT2 OUT2 PASS OUT3 OUT3 FUNC FUNC Digital 280-1 OUT1 Ù Ì OUT2 PASS OUT3 FUNC Digital 280-1 OUT1 Ù...

  • Page 23: Configuration Level

    Transition to the next configuration is by pressing key Ù . w After the last configuration of a group, donE is displayed and followed by automatic change to the next group Return to the beginning of a group by pressing the Ù key for 3 sec. Digital 280-1 Configuration survey...

  • Page 24: Configuration

    0...450 Ohm (scaling necessary) 0...20mA / 4...20 mA (scaling necessary r page 36) 0...10V / 2...10 V (scaling necessary r page36) special (-2,5...115 mV scaling necessary r page36) special (-25...1150 mV scaling necessary r page 36) Configuration Digital 280-1...
  • Page 25 Swit OFF..999999 operation cycle number (only visible with BlueControl!) Out. 1 und Out. 2 name value range description default O. A ct circuit direction of output OUT1 direct / open circuit principle inverse / closed circuit priciple Digital 280-1 Configuration...
  • Page 26 100% (20mA bzw. 10V, only 99999 visible with O.TYP=1..5) O. S rc signalsource for analog output OUT3 (only visible with O.TYP=1..5) not active controller output y1 (continuous) process value effective set-point Weff control deviation xw (process value - set-point ) Configuration Digital 280-1...
  • Page 27 (only visible with OPTION) di3 switches (only visible with OPTION) è -key switches rES. H no function (switch-over via interface is possible) di1 switches di2 switches (only visible with OPTION) di3 switches (only visible with OPTION) è -key switches Digital 280-1 Configuration...
  • Page 28 10 digits display resolution= 20 digits display resolution= 50 digits display resolution= 100 digits C. d El 0..200 modem delay [ms] FrEq switch-over 50/60 Hz (only visible with BlueControl!) netfrequency 50 Hz netfrequency 60 Hz Configuration Digital 280-1...
  • Page 29 The enginee-  ring tools are connected to Dig 280-1 via the front-panel interface "BluePort " by means of PC (Windows 95 / 98 / NT) and a PC adaptor. Description BlueControl: see chapter 8: BlueControl (page 40) Digital 280-1 Configuration...

  • Page 30: Configuration Examples

    SP. L O = -1999...9999 set-point limit low for Weff SP. H i = -1999...9999 set-point limit high for Weff For direct signaller action, the controller action must be changed (ConF / Cntr / C. A ct = 1 ) Configuration examples Digital 280-1...

  • Page 31: 2-Point Controller (Inverse)

    SP. L O = -1999...9999 set-point limit low for Weff SP. H i = -1999...9999 set-point limit high for Weff For direct action, the controller action must be changed (ConF / Cntr / C. A ct = 1 ). Set-point Process-value Output Digital 280-1 Configuration examples...

  • Page 32: Continuous Controller (Inverse)

    To prevent control outputs Out. 1 and Out. 2 of the continuous controller from switching simultaneously, the control function of outputs Out. 1 and Out. 2 must be switched off ( ConF / Out. 1 and Out. 2 / Y. 1 and Y. 2 = 0 ). Configuration examples Digital 280-1...

  • Page 33: Digital 280-1 With Measured Value Output

    Configuration level 5.3.4 Digital 280-1 with measured value output phys. unit Out. 1 mA / V phys. unit Out. 0 0/4mA 20mA 0/2V Logic OUT3 ConF / Out. 3 : O. t YP = 1 Out. 3 0...20mA continuous Out. 3 4...20mA continuous Out.

  • Page 34: Parameter Setting Level

    Return to the beginning of a group is by pressing the Ù key for 3 sec. If for 30 sec. no keypress is excecuted the controler returns to the process va- lue and setpoint display ( Time Out = 30 sec. ) Digital 280-1 Parameter survey...

  • Page 35: Parameter

    3 (H. 3 < -19999 = off) HYS. 3 0...99999 hysteresis of limit value 3 dEL. 3 0...99999 alarm 3 delay Resetting the controller configuration to factory setting (Default) r chapter 11.1 (page 47) Digital 280-1 Parameter...

  • Page 36: Input Scaling

    InL= 4 and InH 0 20 means, the measurement is from 4 to 20 mA. For using the predetermined scaling with thermocouple and resistance thermometer (Pt100), the settings for InL. 1 and OuL. 1 and for InH. 1 and OuH. 1 must have the same value. Input scaling Digital 280-1...

  • Page 37: Calibration Level

    ( ConF/ InP. 1 / Corr = 2 ): w is possible off-line with process value simulator w online in 2 Schritten zunächst den einen Wert korrigieren und später, z.B. nach dem Aufheizen des Ofens, den zweiten Wert korrigieren. Digital 280-1 Offset correction...
  • Page 38 Calibration level Offset correction ( ConF/ InP. 1 / Corr =1 ): Digital 280-1 OUT1 OUT2 Ù PArA OUT3 FUNC Ì 3 sec. ConF Ì r Ù r r Ù Ù È Ù È Ù Ì r Ù InL. 1 : The input value of the scaling point is displayed.
  • Page 39 Calibration level 2-point correction ( ConF/ InP. 1 / Corr =1 ): Digital 280-1 OUT1 OUT2 Ù OUT3 PArA FUNC Ì 3 sec. ConF Ì r Ù r Ù r Ù È Ù È r Ù Ì r Ù È...

  • Page 40: Bluecontrol

    The mini version is - free of charge - at your disposal as download at PMA home- page www.pma-online.de or on the PMA-CD (please ask for). At the end of the installati-...

  • Page 41: Versions

    Versions Versions D 2 8 0 1 Digital 280-1 Connection via screw-terminal 90..250V AC 24VAC / 18..30VDC 90..250V AC, 2 relay+ mA/V/logic 24VAC / 18..30VDC, 2 relay+ mA/V/logic No option Modbus RTU + transmitter supply Digital inputs di2, di3 (optocoupler)

  • Page 42: Technical Data

    12,5% below span start (2mA, rating Note: CONTROL INPUT DI1 If the relays OUT1...OUT3 operate external contactors, these must be fitted with RC snubber circuits to manufacturer Configurable as switch or push-button! specifications to prevent excessive switch-off voltage peaks.. Digital 280-1...
  • Page 43 EEPROM Set-point Correcting variable Y BLUEPORT FRONT INTERFACE Functions Connection of PC via PC adapter (see Measured value monitoring "Accessory equipment"). The BlueControl Measured value monitoring with storage. Reset via front panel keys or digital input Digital 280-1...
  • Page 44 Complies with EN 61 326-1 (for continuous, non-attended operation) ALLGEMEINES Housing Material: Makrolon 9415 flame-retardant Flammability class: UL 94 VO, self-extinguishing Plug-in module, inserted from the front Safety test Complies with EN 61010-1 (VDE 0411-1): Overvoltage category II Contamination class 2 Digital 280-1...
  • Page 45 ≤ 0,1 % 40 µV -25...90 mV* ? 1M[ ≤ 0,1 % 4µV -500...500 mV* ? 1M[ ≤ 0,1 % 40 µV -5...5Volt ≈ 110 kΩ ≤ 0,1 % 0,4 mV * high-impedance voltage ranges without break monitoring Digital 280-1...

  • Page 46: Safety Hints

    If the controller is connected with other equipment in the same signal loop, check that other equipment in the output circuit is not affected before switch-off. If ne- cessary, suitable protective measures must be taken. Digital 280-1...

  • Page 47: Resetting To Factory Setting

    Modification, maintenance and repair work may be done only by trained and aut- horized personnel. For this purpose, the PMA service should be contacted. The cleaning of the front of the controller should be done with a dry or a wetted (spirit, water) kerchief.

  • Page 48: Notes

    Notes Notes Digital 280-1...
  • Page 49 Notes Digital 280-1...
  • Page 50 Digital 280-1...
  • Page 51 Versions ....49 - 50 Parameter setting ..40 Input scaling ... . 41 - 42 Digital 280-1...
  • Page 52 Subject to alterations without notice © PMA Prozeß- und Maschinen-Automation GmbH Änderungen vorbehalten P.O.B. 310 229, D-34058 Kassel, Germany Sours réserve de toutes modifications Printed in Germany 9499-040-67311 (06/2004)

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