Operating instructions ETR 90 Compact temperature
Contents
1. lt Manual gt Switches from automatic to controller manual operation lt Scroll Less gt Back to the basic standard mode level lt Scroll Manual gt Call up parameter list lt Scroll More gt 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 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 2 2 3 3 1 L Entry bar has been removed on the Operator s List P Control unit is in the Parameter List mode P 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 maximum rate Flashing indicates the r2. 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 increase value in steps Press lt More gt key and hold it down increase value quicikly Press lt More gt key and then lt Less gt as well 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 Less gt key and then lt More gt as well Decrease value very quickly 4 1 4 2 4 3 4 4 Operating steps Changing required values The required value is shown permanently in the lower display when the unit is at the basic level The following steps have to be followed to change them 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
3. m 99 tsp 0_ i S 99 Soo 50 3 Adaptionsari Adp Sou joo Apb 1 rAP Pp 000 C min AAF 0 II CAA O as qe ler e oo o o o o o OFF je do de o SAA ee js o 12
4. 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 90 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 Heating current monitor 4 5 Adaptation 5 Main functions explanation 5 1 Sensor breakage Controller operation 6 Commissioning installation 6 1 Allocation of terminals 7 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 o
5. as a gradient of 99 and the full cooling output as a gradient of 99 To call up the gradient Select the Operator s List by pressing lt Scroll gt L appears in the in formation display Call up Grd in the upper display by pressing the lt Scroll gt key again 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 Value Minus They can be changed as follows Select Operator s List by pressing lt Scroll gt L appears 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 Heating current monitor The heating current monitor facility is not built in to all versions of this unit The heating current is measured by the unit via a current converter and compared with the required value for current If the actual value deviates from the required valu
6. connected to the 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 7 6 1 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 Scr
7. e by more than the pre set tolerance an alarm message is issued There will also be an alarm message if current continues to flow when the heating unit has been switched off The following operational steps are necessary for monitoring the heating current 4 5 Reading out the actual value for current Select Operator s List by pressing lt Scroll gt an L appears in the information display Select the ACr parameter for actual current by pressing the lt Scroll gt key again The value will be shown in amperes as measured via the current converter when the heating is switched on This value can only be displayed Accept required value for current Select Operator s List by pressing lt Scroll gt an L appears in the information display Select the parameter RCr for required current by pressing the lt Scroll gt key again When the heating is switched on this value will be compared with the actual current The required current can be accepted automatically by the unit this must be done once when the unit is being started up For this purpose RCr must appear 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 the lt Manual gt key the symbol Acc for acceptance of the required value for current will appear briefly Set the tolerance value for current Select Operator s List by pressing lt Scroll g
8. elevant 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 lt comes on when the unit is in manual controller operation In adaptation mode 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 Basic level standard mode As soon as the unit is switched on it will be in this operating mode The upper display will show the actual value and the lower value the required value After having been switched to any other operating level the unit will automatically return to this basic setting after 30 seconds if no key has been touched The key combination lt Scroll Less gt enables this return move to be made at any convenient time Operator s List standard functions The Operator s List is called up by pressing the lt Scroll gt key The abbreviation for the parameter selected appears in the upp
9. er display and the relevant parameter value in the lower one The information display shows L for Operator s List The Operator s List consists of a maximum of the following parameters 3 2 3 3 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 the lt Scroll Manual gt keys both at once From this list normally only the paraameter 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 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
10. nces 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 C AZ Actualcurrent___ DOA RCr Required current 00 0 JA a ETR90 SR 0 GSR 500 C Fe O O Symbol Attribute Setting Units __________ Po 20 JU Betriebsart bt St 0 o HEO 000 IZ 3 Adaptionsart Adp Apb 4 gt gt gt gt FAP fe ASA ZERI AAF 0 II AI AS2 jo 008 eee POPP J JE ju po ooo oi Sen dd 10 b ETR 90 TS 0 GSR 500 C Fe StA 0 Symbol Attribute Setting Units __________ Po 10 1 Betriebsart btA 99 E joo Apb 1 00 0 C min AAF O AQT je poo o o o o o o JIE EEE 11 c ETR 90 SR KSR GSR 500 c Fe StA 0 Symbol Attribute Setting Units Pb J20 1 Betriebsart btA To 5 se Sto Ea see AS Maje me E lesi ae e Td so see lin 0 7 C Vv Ti 20 sec Fbazo Ta Mo sec PAS 0 Ada JAE OFF PHT Adr 2 Systemeinstellung Sys z 96 kbud CEL 1 bd Pro Pp po SbF 0 btA look 4 Sut Sys look IOS Adp ek o Parzo
11. nly be changed by knowledgeable experts Technical data Micro processor control unit for one 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 V AC 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 0 500 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 Output 2 Cooling or Alarm Output 3 Alarm 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 only Outputs 1 2 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 7 segment information display Six stat
12. oll 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 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 Commissioning installation Allocation of terminals 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 connection 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 kKOhm 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 resista
13. t an L appears in the information display Select the CrT parameter by pressing the lt Scroll gt key the necessary number of times If the actual value deviates from the required value by more than the pre set tolerance an alarm message will be issued A value must be set for current tolerance and it should be about 10 to 20 of the actual value for current To set the tolerance value 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 Change the value with the lt More gt lt Less gt key Confirm the entry by pressing the lt Scroll gt key 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 5 1 Set will now appear in
14. the upper display and the new required 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 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
15. us 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 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 parameter 2 1 Keys 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 lt More gt Enlarges parameter value lt Less gt Reduces parameter value lt Scroll gt Scrolls to next parameter calls up Operator s List
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