Operating instructions ETR 92 Compact temperature
Contents
1. 7 segment information display Six status LED s 4 keys foil covered Control behaviour Extended digital PID algorithm separate for heating and cooling automatic structure change over PD PID PI Approach adaptation to parameter requirement in the approach phase facility for manually reading out and adjusting control parameters Housing Robust shock resistant steel plate housing Insulation tension Mains electronics 1 5 kV Test voltage 2 5 kV Connecting terminals 16 pole screw terminals maximum 1 5 2 Display and control panel Actual value normal operation Parameter abbreviation Status display yellow o heating cooling 1 channel 1 o no function Alarm message red GW temperature too low GW temperature too high A Mains power alarm Manual key with yellow LED controller operation power acceptance Less key reduce parameter 2 1 Keys Required value normal operation Parameter value Information display for unit C F Operator s list L parameter list P Scroll key call up Operator s List scrolling parameter More key increase parameter A function is allocated to each of the keys and additional functions can be called up by means of combinations of keys These can be selected by pressing two keys simultaneously Key Function More Enlarges parameter value Less Reduces parameter value2. Less gt key and then lt More gt as well Decrease value very guickly Operating steps Changing required values S channel at base level To change required value the following steps must e taken Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Set will appear in the upper display Change the value with the lt More gt lt Less gt key Confirm the entry by pressing the lt Scroll gt key The required value can only be altered within a pre determined range Gradient The gradient is shown in and is a measure of the heating or cooling output being achieved Full heating output is shown as a gradient of 99 and the full cooling output as a gradient of 99 To call up the gradient Select channel in base level Select the Operator s List by pressing lt Scroll gt L appears in the information display L and 1 or 2 alternately in the information display Call up Grd in the upper display by pressing the lt Scroll gt key again 4 3 4 4 The gradient will be continually up dated and after 30 seconds the display will automatically return to the basic setting The key combination lt Scroll Less gt will return the unit to the basic position again immediately Alarm limit values There are two limit values AL1 and AL2 in the unit These will normally be interpreted as Limit Value Plus and Limit
3. Scroll Scrolls to next parameter calls up Operator s List Manual Switches from automatic to controller manual operation Scroll Less Back to the basic standard mode level Scroll Manual Call up parameter list Scroll More Scrolls to preceding parameter 2 2 Displays The unit has two 4 figure digital displays and one information display The actual value is shown in the upper digital display and the required value in the lower one when in basic position If values are entered in the control unit the parameter abbreviation e g Set for required value is displayed in the upper display and the relevant parameter value in the lower one 2 3 3 1 The information display shows which operating level has been selected In the basic position the units C or F are displayed here Other information dis played here is L Control unit is in the Operator s List mode L Entry bar has been removed on the Operator s List Control unit is in the Parameter List mode Entry bar has been removed on the Parameter List The entry bar is lifted when an additional dot is displayed at top left this does not apply when C or F is displayed Status LED s The unit has 6 LED s which indicate the following Output display Yellow LED s for automatic heating and cooling outputs The LED Is off when the heating cooling is switched off if it comes on and remains on heating cooling is running at the
4. Value Minus They can be changed as follows Select channel in base level Select Operator s List by pressing lt Scroll gt L appears in the information display L and 1 or 2 alternately in the information display Select AL1 or AL2 by pressing the lt Scroll gt key the necessary number of times Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Set will appear in the upper display Change the value with the lt More gt lt Less gt key Confirm the entry by pressing the lt Scroll gt key again Adaptation Adaptation is the term used for the process by which the necessary control parameter is calculated automatically for the control unit self optimisation This process runs entirely separately and automatically but it has to be set off manually when the unit is first started up on a new or change control point Start adaptation Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Set will appear in the upper display Select AdA by pressing the lt Manual gt key The lower display will normally be showing OFF This is changed to ON by pressing the lt Less gt key so that adaptation can start Confirm the entry by pressing the lt Scroll gt key Set will now appear in the upper display and the new requir
5. unit has broken The lower display goes out and the pre set required value can no longer be adjusted If a sensor breaks the heating and the cooling are shut off To switch over to controller operation Select Operator s List by pressing lt Scroll gt an L appears in the information display Select the parameter Grd by pressing the lt Scroll gt key the necessary number of times it is not already shown in the upper display Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Press lt Manual gt and the unit will switch over to controller manual operation The yellow LED will appear in the key with the hand The gradient issued and shown under the Grd parameter will be equal to the average gradient most recently run in automatic operation The gradient issued can be corrected by means of the lt More gt and the lt Less gt keys Confirm the entry by pressing the lt Scroll gt key At the basic level which can be reached with the key combination lt Scroll Less gt Sb will appear in the upper display and the current gradient in the lower display Switching off controller operation When the sensor of the control unit has been repaired controller manual operation must be switched off again This can be done by switched the unit off and then on again or Select Operator s List by pressing lt Scroll gt an L appears in t
6. PSG PLASTIC SERVICE GMBH Pirnaer Str 14 16 68309 Mannheim Germany Tel 49 621 71 62 0 Fax 49621 71 62 162 Operating instructions ETR 92 Compact temperature control unit Contents 1 General 1 1 Technical data 2 Display and control panel 21 Keys 2 2 Displays 2 3 Status LED s 3 Operation in general 3 1 Operator levels 3 2 Entry bar 3 3 Changing values 4 Operating steps 4 1 Changing required values 4 2 Gradient 4 3 Alarm limit values 4 4 Adaptation 5 Main functions explanation 5 1 Sensor breakage Controller operation 6 Commissioning installation 6 1 Allocation of terminals Z Works settings parameters 1 1 General The ETR 90 92 temperature control unit is an ultra modern micro processor device It provides a large number of functions but takes up very little space Great importance was placed during its development on making it easy to operate These instructions contain all the information necessary for starting up and operating this unit It is set in the factory at a number of settings which will be fully adequate for all normal applications However if you wish to change any of them you will need to change the configuration of the unit You can see how to do this from the separate set of instructions on configuration For the normal user the configuration is locked away inside the unit by means of a wiring bridge The configuration should only be changed by knowledgeab
7. e lt Scroll Manual gt keys both at once Depending on whether the parameter list for channels 1 or 2 is to be selected the corresponding channel must first be selected at base level From this list normally only the parameter Grd Temperature gradient can be called up although with certain version of the unit other parameters can be called up as well A complete list of parameters is included in the Appendix Within the parameters list it is possible to page forwards with the lt Scroll gt key or back to the previous parameter with the key comination lt Scroll More gt 3 2 3 3 4 1 4 2 Entry bar It is only possible to change values in the control unit if the entry bar has first been raised To do this press the lt More gt key and then the lt Less gt key The information display indicates that this has been done by showing a dot top left Changing values Paramters can be changed in the lower display by means of the lt More gt and lt Less gt keys The entry bar must first be raised to permit this The lt More gt key is pressed to increase values and the lt Less gt key to decrease them Press lt More gt key Press lt More gt key and hold it down Press lt More gt key and then lt Less gt as well increase value in steps increase value quicikly increase value very quickly Press lt Less gt key Decrease value in steps Press lt Less gt key and hold it down Decrease value quickly Press lt
8. ea Betriebsart btA Hd je 10 sem Stz0 o Ada JAP ore 3p 0 3P 0 Sys bd 96 Jjkbad CEL 1 gt pros jel 0 gt JSbESO BA je oky S02 Sys ock2 Am s0 Adp look3 jPar 0 ja tsp 0 ear ja Y som C 3 Adaptionsart Adp joo pc Apbzt 000 X C mn AAF 0_ AA 11 c ETR 90 SR KSR GSR 500 c Fe StA 0 Symbol Attribute Setting Units ___________ Pb 20 f Betrebsart btA Td Re 05 sens Stz0 3 600 see St 0_ 12
9. ed value can be entered Change the value if necessary with the lt More gt lt Less gt key The new required value should be at least 40 C above the current actual value or 30 C below it in the case of cooling adaptation Confirm the entry by pressing the lt Scroll gt key Caution In order to avoid any mistakes in adaptation the required value cannot be changed while adaptation is running If the required valued is changed adap tation is suspended and the unit continues to work with the previous control parameters Terminating adaptation The adaptation cycle automatically comes to an end when the parameters have been calculated It is not normally necessary to terminate Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Select AdA by pressing the lt Manual gt key Change ON in the lower display to OFF by pressing the lt Less gt key Confirm the entry by pressing the lt Scroll gt key 5 1 a 5 2 Main functions explanations Sensor breakage controller operation In the event of a sensor breaking the region under control can continue to be controlled at the gradient last saved in the memory This makes emergency operation possible If the lead from the sensor breaks Sb will appear in the upper display Switching to controller operation If Sb appears in the display the sensor connected to the
10. he information display Select the parameter Grd by pressing the lt Scroll gt key the necessary number of times it is not already shown in the upper display Remove the entry bar by pressing first the lt More gt and then the lt Less gt key an additional dot will appear in the information display Press lt Manual gt and the unit will switch back to automatic operation but only if the sensor has been properly repaired The LED in the key with the hand will not come on Reversed polarity of sensors If a thermoelement is connected with reversed polarity the letters FP appear in the actual value display 6 Commissioning installation 6 1 Allocation of terminals 17 1 e 14 18 2 L sL pr power 19 3 N 20 4 E 3i er sls output 1 Ze ee oe output 2 23 7 ke 24 8 boo output 3 25 9 p 26 10 27 41 bo interface 28 12 output 4 29 13 input 2 30 14 V C 4 ies input 1 ARA 2 ye pe 32 16 a A thermocouple as input 1 thermocouple Fe CuNi NiCr Ni 1 Outputs 1 2 3 TS constant or SSR With TS and constant check polarity 2 Interface With TTY 20 mA 2 lead and RS485 as illustrated With TTY 20 mA 4 lead output 3 is used for interface RXD on 8 RXD on 9 TXD on 10 TXD on 11 With RS232 GND on 9 TXD on 10 RXD on 11 3 Input 2 current converter connect
11. ion for monitoring current In interface operation and current monitoring the control unit address is set via keyboard on the unit In interface operation without monitoring of current resistances can be addressed via the current inputs The following values apply Address 0 no resistance Address 1 terminals 12 13 bridged Address 2 1 3 kOhm Address 3 1 78 kOhm Address 4 2 87 kOhm Address 5 3 92 kOhm Address 6 5 11 kOhm Address 7 6 81 kOhm Address 8 8 06 kOhm Address 9 11 5 kOhm Address 10 14 3 kOhm All resistances metal layer lt 1 7 Works settings parameters The units are set in the works at values which will be suitable for most normal areas of operation For the sake of completeness however these works settings are listed below and if any changes have to be made a separate set of configuration instructions can be provided Operator s List L for all standard versions Symbol Explanation Setting Units Required value Grd Gradient 00 Acr Actualcurrent_ 000 JA RCr______ Required current 00 0 JA a ETR 90 SR 0 GSR 500 C Fe O O Symbol Pb A 2 0 f Betriebsart btA Sec kbaud look2 look3 go AA joo C 3 Adaptionsart Adp 00 0 6 Appz A Es jer Pe 1o f JE Je pa p Mp A 10 b ETR 90 TS 0 GSR 500 C Fe StA 0 Symbol Attribute Setting Units __________ aa oa atea S
12. le experts Technical data Micro processor control unit for two temperature zone Size 48 x 96 mm 190 mm deep to comply with DIN 43700 Mains power supply 230 V 50 60 Hz 10 convertible to 115 VAC Input 1 measurement sensor Fe CuNi L 0 500 C 32 900 F Fe CuNi J 0 500 C 32 900 F Ni CrNi K 0 900 C 32 1300 F Pt 100 O 500 C 32 900 F The unit complies with DIN 43700 and DIN IEC 574 Automatic temperature compensation Protected against sensor breakage and reversing of poles Input 2 can at choice also be used for monitoring electric current via a current converter or addressing resistance in interface operation Outputs Output 1 Heating Zone 1 Output 2 Cooling or Alarm Zone 1 Output 3 Heating Zone 2 Output 4 Cooling or Alarm Zone 2 Open collector 9V 20 mA for thyristor or solid state relays Solid state relay 230 V AC min 10 mA max 100 mA for output protection Analogue 0 10 V or 0 20 mA for constancy actuators Outputs 2 4 only Cooling Interface Serial 150 to 19200 Baud via module as passive 20 mA current loop TTY passive 20 mA current loop TTY 4 wire RS232 interface RS485 interface A choice of protocols is available Required value entry Digital via keyboard or interface Actual value display Digital via 7 segment display Control panel Two 4 figure 7 segment displays required and actual values One 1 figure
13. maximum rate Flashing indicates the relevant gradient between 0 off and 99 on Alarm message The red LED s are on when there has been an alarm lt Alarm 1 e g limit value minus gt Alarm 2 limit value plus A mains power alarm e g when heating current is being monitored Manual The yellow LED with a picture of a hand is off when the unit is running on automatic It comes on when the unit is in manual controller operation In adaptation mode i e when the unit is calculating the parameters for automatic operation the LED with the hand flashes Operation in general It is important to know all the general operational steps in order to be able to use this unit without difficulty These are described in this section Operator levels In order to separate the major settings from the minor ones the unit is divided into three operator levels a b c Base level standard mode After switching on the device is in this operating mode Here the actual value of channel 1 is shown in the upper display and the actual value of channel 2 in the lower display The information display indicates the unit C From every other operator level the device returns to this base setting after approx 30 seconds if no key is activated With the key combination lt scroll less gt it is possible to return to base level at any time Within base level channel 1 can be scanned by pressing the lt scroll gt key once If
14. the lt scroll gt key is activated again there is a switch to channel 2 The actual value appears in the upper display the required value for the respective zone appears in the lower display The information display then shows the corresponding channel number Operator s List standard functions The Operator s List is called up by holding down the lt scroll gt key approx 2 seconds In the upper display the abbreviation for the selected parameter now appears with the corresponding parameter value in the lower display The information display shows an L Operator List and a 1 or 2 channel number alternately When there is a change from the base level to the operator list the channel last selected in the base level remains actual The Operator s List consists of the following parameters per channel at the maximum Grd Gradient AL1 Alarm 1 AL2 Alarm 2 ACr Actual current RCr Required current CrT Current tolerance The parameters that can be called up varies from one version of the unit to another The parameters for current for instance are only active if the heating current monitoring facility has been built in Within the Operator s List it is possible to scroll forwards with the lt Scroll gt key or back to the previous parameter with lt Scroll More gt Parameter list additional functions In order that additional parameters can be calaled up the parameter list has to be called up by pressing th
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