User's Manual Level Controller Type DC206
Contents
1. Power Input a DA C T H 28 VY 2x FUSE HA Pe NOS NOS Common 7 7 Die ye i TTI 7 31 3P DS197 levelsensor Figure 6 4 24 VAC model with open close valve Putting into operation To put the DC206 into operation the following steps have to be taken Caution Before opening up the device should be switched off and the power supply disconnected Installation Assemble the DC206 according to the abovementioned diagram Configuration Set the limit values with the aid of the DC206 display The various settings are explained in the chapter User settings Oct 2008 rev 7 SvdP pg 21 32 6 5 24 VDC model with open close valve and overflow safety device The minimum requirements for putting the DC206 into operation are External 24 VDC source DC206 DS197 sensor PT100 The DC206 is powered from the 24 VDC voltage source The open close valve is powered via the 206 The following figure gives a schematic overview CAVDC Ses 2x Fuse 4A NO9 NO 8 lt Common 7 LEEUS 19 20 22 al 3e 3 PT100 amp eating DS os MeV ELSES OP Current input 4 20mA Figure 6 5 24 VAC model with open close valve and overflow safety device Putting into operation To put the DC206 into operation the following steps have to be taken Caution Before opening up the device must be switched o2. Common 7 ISIS 7 po hevelsensnr Current input 4 20mA Figure 6 1 230 VAC model with open close valve Putting into operation To put the DC206 into operation the following steps have to be taken Caution before opening up the device must be switched off and the power supply disconnected e Installation Assemble the DC206 according to the abovementioned diagram e Configuration Set the limit values with the aid of the DC206 display The various settings are explained in the chapter User settings Oct 2008 rev 7 SvdP pg 18 32 6 2 230 VAC model with 230 VAC open close valve and overflow safety device The minimum requirements for putting the DC206 into operation in the abovementioned situation are DC206 230 VAC solenoid for open close valve _DS197 sensor PT100 The DC206 is powered directly from the mains The following figure gives a schematic overview C30VAC Figure 6 2 230 VAC model with open close valve and overflow safety device Power Input ay vl l 2x Fuse 1A Putting into operation To put the DC206 into operation the following steps have to be taken G s DS IE Zn levelsensor Current input 4 20mA Caution Before opening up the device must be switched off and the power supply disconnecte
3. DeMaCo setting 10 0 5 minute 0 5 minute Table 4 3 List of the possible settings for the DC206 factory settings Functions High alarm delay time Low alarm delay time Repeat time High alarm Repeat time Low alarm By entering a greater value activation of the high alarm signal will be delayed This can be applied for damping oscillations in the control loop By entering a greater value activation of the low alarm signal will be delayed This can be applied for damping oscillations in the control loop Repeats the high alarm signal after the set time value x 0 5 minutes after this has been accepted switched off by the operator Repeats the minimum alarm signal after the set time value x 0 5 minutes after this has been accepted switched off by the operator Oct 2008 rev 7 SvdP pg 13 32 4 4 Extra alarm If the DC206 comes with an extra alarm option it will have a special temperature sensor type PT100 connected to it The PT100 only serves as an extra alarm This option is separate from the normal level control and is intended as an additional safety signal by means of a temperature measurement Example Extra High alarm Place the PT100 in the top part of the storage tank above the Max Level of the level sensor or in the flue gas duct If the liquid in the storage tank rises above the permissible level the PT100 will cool down and depending on the set temperature switch a relay
4. together with PT100 2 O points 1 Brown compensation in connection to wire resistance 17 PT100 2 together with PT100 1 O points 2 White compensation in connection to wire resistance 18 PT100 3 measuring signal via 1 3 or 2 3 3 Blue 19 Sensor loop 1 Brown 20 Ground 3 Yellow green 21 Ground 22 Sensor loop 2 Green 23 CAN ground 24 CANL out 25 CANH out 26 Proportional valve 2 Brown 27 Ground 28 24 VDC in 29 0 VDC in 30 Ground 31 24 VDC out 7 Red 32 0 VDC out 3 Green 33 Alarm 34 Alarm 35 Ground 36 CAN ground 37 CANL in 38 CANH in The following figure systematically shows the composition of the connectors as visible to the user Oct 2008 rev 7 SvdP pg 25 32 aioe EE The following table gives the jumper setting This only applies to the PT100 power supply If a PT100 is not being used as an external alarm then the position is not relevant lomschrijving a o 5 CE J1 Voedingsselectie 230VAC 2AVDC The DC206 is delivered with the jumper set to the position A 6 9 Cable information Ref Description Cable diameter Vein diameter Remarks 1 Power 6 0 8 0 0 75 mm2 PUR CY 3 veins 2 Valve 6 0 8 0 0 75 mm2 PUR CY 3 veins 3 Sensor 4 0 6 0 0 34 mm2 PUR CY 3 veins shielding 4 PT100 H 4 0 6 0 0 34 mm2 PUR CY 5 veins 5 External 8 0 11 0 0 5 mm2 PUR CY Max 10 veins shielding For the f
5. 1997 A1 1998 A2 2001 A3 2003 precedence EN 61000 4 2 1995 A1 1998 A2 2001 EN 61326 1997 A1 1998 A2 2001 A3 2003 precedence EN 61000 4 3 2006 EN 61326 1997 A1 1998 A2 2001 A3 2003 precedence EN 61000 4 4 1995 A1 2001 A2 2001 EN 61326 1997 A1 1998 A2 2001 A3 2003 precedence EN 61000 4 5 2007 EN 61326 1997 A1 1998 A2 2001 EN 61000 4 6 1997 A1 2001 Oct 2008 rev 7 SvdP pg 31 32 Power supply Voltage dips and variations Safety Place Date Name and function Signature EN 61326 1997 A1 1998 A2 2001 A3 2003 precedence and EN 61000 4 11 1994 A1 2001 EN 61010 1 2001 Noord Scharwoude the Netherlands Oct 2008 rev 7 SvdP pg 32 32
6. event of a High alarm the controller triggers an acoustic signal to announce this After the acoustic signal has been reset the fill valve is released for automatic level control the alarm output will be reset If there is a high alarm take the appropriate measures If in doubt always shut off the LN2 supply first Note all alarms and level settings are ignored during manual operation mode Oct 2008 rev 7 SvdP pg 30 32 10 CE DC206 level controller declaration Manufacturer DeMaCo Holland bv Oester 2 NL 1723 HW Noord Scharwoude DeMaCo reference DC206 Level Controller Customer reference Serial number order number The manufacturer hereby declares that the DC206 Level Controller complies with the stipulations of the following directive s EMC 2004 108 EC Low Voltage Directive 2006 95 EC and conforms with the following standard s or other normative documents Emission Conducted emission Radiated emission Harmonics Flicker Immunity Electro Static Discharges ESD Radiated immunity Electrical Fast Transience EFT Surges Conducted immunity A3 2003 precedence and and and and and and and and and EN 55011 1998 A1 1999 A2 2002 precedence EN 55016 2 1 2004 EN 55011 1998 A1 1999 A2 2002 EN 55016 2 3 2004 EN 55011 1998 A1 1999 A2 2002 EN55016 2 3 2004 EN 61000 3 2 2000 EN 6100 3 3 1995 A1 2001 EN 61326
7. 06 switch levels Functions Low alarm Indicates the low level at which the DC206 sends off an alarm after the set delay time Lower limit Indicates the level at which the DC206 starts filling the system Upper limit Indicates the level at which the DC206 stops filling the system High level indicates the high level at which the DC206 triggers an alarm after the set delay time Recommendation We recommend that you do not place the various levels too closely together and maintain a minimum variance of 10 between the levels Oct 2008 rev 7 SvdP pg 10 32 4 2 Installation settings To change the installation setting the DC206 has to be set to the change mode Press the Select and Open keys simultaneously for 2 seconds The left position of the display then indicates the code A N for the parameter to be changed The two right positions indicate the current value of this parameter again The parameter value can be adjusted with the Up position 3 and Down position 4 keys Press the Select key again to switch to the next parameter to be set Once the settings have been changed these will be automatically taken over and saved After approximately 10 seconds the regulator will revert to the control mode Table 4 2 gives a list of the possible settings displayed Description Display Range DeMaCo Unit indicator setting Valve response A 1 99 1 Second time 0 manual operation Start up mode B 0 1 1 1 automa
8. 7 7 2 DE206 ASSEMBLY 8 severe cvewis s EE EE 02 S000 50 08 Seeds EE EE N sass GO EE OO OO OOOOOOO OONAOURWN 9 1 DC206 LEVEL CONTROLLER FAILURE OVERVIEW cccccccssssccccccccssccccccccssscsccsscssssssccsscsssssssseees LD 9 2 LOW ALARM FAILURE GE best bep Ee Se Ee mses sate bee ee ew EDE even was ees Kees ETRE Ca Ee ED ETON EERE aE ES ese DU 9 3 alle BEWAAR OE EE DOE EE EE AE EE in 10 CE DC206 LEVEL CONTROLLER DECLARATION esse se se sees esese sesse se se se ee ee sesse sesse se se se ee 3 T Oct 2008 rev 7 SvdP pg 2 32 1 Operator s safety and wellbeing This user s manual applies to the DeMaCo Holland bv Level Controller type DC206 for liquids The manual applies to both the standard model of the DC206 as well as to models with custom software Remarks The operator should read these instructions as soon as possible in order to understand how to operate the level controller correctly With respect to injury to the operator the dangers that may occur when using cryogenic media are emphatically indicated The sticker shown below is affixed to the areas on DeMaCo Holland bv equipment where the operator comes into contact with cryogenic media The symbols on the sticker warn the operator for extreme cold and indicates that safety goggles and gloves with wrist protection must be worn DeMaCo Holland bv T 31 0 226 33 21 00 F 31 0 226 33 2111 DeMa Co E info DeMaCo nl Figure 1 1 Safety s
9. Page 1 1 CRYOGENICS VACUUM TECHNOLOGY TECHMATIC ENGINEERING ISO 9001 VCA Quotations transactions and deliveries will be effected in accordance with the 01 12 2008 User s Manual Level Controller Type DC206 DeMaCo Holland bv Oester 2 Orgalime general conditions for the supply of mechanical electrical and related products October 1992 P O Box 4 Chamber of Commerce registration number 37079728 NL 1723 ZG Noord Scharwoude Oct 2008 rev 7 SvdP pag 1 33 T 31 0 226 33 21 00 F 31 0 226 33 21 11 E info DeMaCo nl www DeMaCo nl Contents 1 OPERATOR S SAFETY AND WELLBEING ses ese se ses ese esse ee ee ee ee ee ee se se se se se sesaosan saersi 2 1 TYPE SPECIFICATION se ese ee sesse sees eie Ge Gees de possess Ge Ge GR sie Ge Ge Ge de passe sepesesesesasesesesosesnsiesosdes se sees 2 2 DISPLAY AND OPERATING ELEMENTS osse sesse sesse sesse sees ee see ee ee ee ese ee ee 3 TECHNICAL DETAILS ses e sesse ee esse sees ee se se se se se se ee EE EE a ee Ee Se Se Se Se se ee ee CO OM A LEVEL SETTINGS esse INSTALLATION SETTINGS sc cos 6 es 0 08 000s be se Ge see N Ge GN se Oe di de seed on dd seek Ee GE GODE EG be N N Ges be Re GR Geen koe e de ee I FACTORY SETTINGS sesse oes vie ein ce cles se seek se se 00 s 64 00 ee Ge debsiebee Se Se ek Se eo Si Ses 13 EXTRA ALARM cceeeeees GENERAL ALARM OUTPUT iiss cates dee dese aaron one dined oben aa eas vee gese vis Ge Ge OGD SUN Ge g
10. This signal can be relayed externally as an extra alarm signal to warn the operator or to disable an application 4 5 General Alarm output As an option the DC206 can be equipped with a potential free contact that indicates when the measured level of the DS197 has reached a value outside the working range Based on the relay contact it is unclear whether the measured level is too low or is indeed too high The maximum contact rating is 24 VDC the maximum switching current is 1A This relay is only suitable for ohmic loads Oct 2008 rev 7 SvdP pg 14 32 5 Operation The DC206 is operated by means of the touch controls on the front panel Loval Cootrothir dh dh Figure 5 1 Overview of the DC206 operating elements 5 1 Operation mode Select 5 Hold down for 1 second This allows the operator to change the level settings When this key is pressed again the next parameter appears After approximately 10 seconds it returns to control mode Select Open 5 6 Hold down simultaneously for 2 seconds This allows the operator to change the installation settings After approximately 10 seconds it returns to control mode Oct 2008 rev 7 SvdP pg 15 32 Select Restart 5 8 Hold down simultaneously for 3 seconds This allows the operator to change the factory settings After approximately 10 seconds it returns to control mode Value up 3 Increases the set value by 1 If this key is held down longer than 2 secon
11. can also be set If one of these levels is exceeded in automatic mode an acoustic signal will be triggered and the fill valve will be closed This situation will remain unchanged until reset An adjustable digital input filter filters the signal from the level sensor in order to achieve steady control behaviour Together with a number of ancillary functions this makes it possible to adjust the regulator in combination with the sensor for various applications DC stands for Digital Controller 206 stands for the custom type 2 1 Type specification A type plate has been affixed to the housing of the DC206 Level Controller which specifies the type and options The supply voltage project number and software version are also specified The abovementioned data is listed in two lines on the type plate Part of this data is recorded in code An example of a type plate is given in figure 2 1 CS0V 3S0 GOHZ 10W A 03 Fuse 1 Amp Slow DELCO A SASAS XA KH AF OBOFE3s 00001 6 7 sl fi bs 4 fg Figure 2 1 DC206 type plate The first line on the type plate specifies the DC206 settings The second line contains coded information about the supplied configuration Oct 2008 rev 7 SvdP pg 4 32 Line 1 DC206 settings 1 Supply voltage The supply voltage is specified on the type plate Possible supply voltages gt 230 VAC 50 60 Hz gt 24 VDC Input power The maximum input power is 10 Watt from the mains excluding swit
12. ched elements Sensor input setting gt 4 20mA Valve output voltage gt 230 VAC 50 60 Hz gt 24 VDC Fuse type The type of fuse is specified on the type plate gt 230 VAC model gt 24 VDC model Line 2 DC206 configuration 6 10 11 Type indication The type is directly specified on the type plate gt DC206 stands for Digital Controller Model gt Stand alone Sensor input This value indicates the connected sensor type gt DS197 DeMaCo capacitive sensor gt Pressure converter gt Other sensors PT100 input mA gt Not applied gt PT100 applied Valve output Fill valve type gt No fill valve connected ex factory gt Open Close valve gt Proportional valve gt Other type Analogue output signal gt Analogue output signal not connected Code on type plate A Code 01 03 Value 1 A slow 4 A slow Code on type plate A Code on type plate A B 0 Code on type plate X 1 Code on type plate O DM Code on type plate X Oct 2008 rev 7 SvdP pg 5 32 gt Analogue output signal connected 1 12 Parameter setting Code on type plate gt Start up mode Manual operation H gt Start up mode Automatic A 13 Software release Code on type plate gt Software version DC206 A Z 14 Identification gt Order number i e 080223 15 Serial number gt Serial number DCOOOOO 99999 2 3 1 N Ss fs a OE e RESTAR J Figu
13. d e Installation Assemble the DC206 according to the abovementioned diagram Make sure that the jumper is internally switched to position A e Configuration Set the limit values with the aid of the DC206 display The various settings are explained in the chapter User settings Oct 2008 rev 7 SvdP pg 19 32 6 3 Other 230 VAC models Power Input ak ty 230VAC 2x Fuse 1A Common 7 6 42 19 20 ee DS197 o levelsensor i Current input Nee EER SE lt lt A E0mA Figure 6 3 1 230 VAC model with open close valve and external display External display Power Input 2 230 230 VAC 2x Fuse 1A Common WE 19 20 22 6 4 DS19 OK levelsensor Current input Ne Pi Biel 4 20mA Figure 6 3 2 230 VAC model with open close valve and external display Oct 2008 rev 7 SvdP pg 20 32 6 4 24 VDC model with open close valve The minimum requirements for putting the DC206 into operation are External 24 VDC source DC206 DS197 sensor 24 VDC open close valve The DC206 is powered from the 24 VDC voltage source The open close valve is powered via the DC206 The following figure gives a schematic overview
14. ds this value will automatically increase Value down 4 Decrease the set value by 1 If this key is held down longer than 2 seconds the value will automatically decrease Auto 7 Touch control Switches between manual operation mode and automatic mode The key is equipped with a green LED which lights up when the DC206 is in automatic mode Open 6 Touch control This key is used for activating the fill valve in manual operation mode The key is equipped with a green LED which lights up when the fill valve is open Reset alarm The acoustic alarm signal is accepted switched off with this The key is equipped with an orange LED which lights up if an alarm state has been triggered Restart 8 This is used to restart the DC206 after an alarm state has been triggered The key is equipped with an orange LED which lights up when restart has to be initiated 5 2 Start up Switch on the main switch 10 The DC206 performs a self test whereby the display flashes for the duration of the self test When the self test is completed the display will indicate the current level value The controller will perform further actions depending on the mode it was started up in and the measured level 5 2 1 Starting up in Automatic mode When the DC206 is started up in automatic mode the fill valve is automatically opened after the self test and the filling of the application starts The filling
15. ee be NED SONU RED gee sd go deed DRR PP UI ARUON 5 1 5 2 START UP EE RR EE sc ov ss oe sverevadesees LO 5 2 STARTING UP IN AUTOMATIC MODE cccccccecees 5 2 1 2 2 STARTING UP IN MANUAL OPERATION MODE ccccccccccccccccccscccccccccscsssssssscsscccccscssccccccscccees TT 6 CONNECTION OVERVIEW iii oes ese ed ses sede se soe be die Gee de oe Soe Ge soo He eb be ed gese eb eed ode dee es 10 230 VAC MODEL WITH 230 VAC OPEN CLOSE VALVE csccccccccccccccccccccccccccccccsssscccccssssssccccssssees 10 230 VAC MODEL WITH 230 VAC OPEN CLOSE VALVE AND OVERFLOW SAFETY DEVICE eecccccccccccccccccscsees 19 OTHER 230 VAC MODELS sesde ede see ns Gees ees eed ede de sd od dae ge se sade ee ee ee ous ee bees ose Ge se ees sd ees LO 24 VDC MODEL WITH OPEN CLOSE VALVE sesscsscccccccccccccccscscscccsccccccccccccssssssssssssssssssssssssees Z1 24 VDC MODEL WITH OPEN CLOSE VALVE AND OVERFLOW SAFETY DEVICE ccscsccccccccccccccccccccccccccccsssses LL 24 VDC MODEL WITH PROPORTIONAL VALVE ccsescccccccccccccccccsccccccces OTHER 24 VDC MODELS 65 sieved ese edie sees cute seis siete geod 69 5959 59 69 SV eis seed seis Deed Sele Ses seis Sess osse ee dd TERMINAL BLOEKS 5 5 5 04 es cc s ee oe rele bele bele Ge Ee Ge E oe eb Sele eee oe eae op oa ee ee ee og ee eeuee LO CABLE INFORMATION site oie ooie ooie ooie cede ook eie ok divs Gates eae ED Ee ee ee Ge Ge ee ee ee ee oe ee ede ge sees LO 7 1 DC206 ASSEMBLY LOCATION 2
16. el has not yet reached the Minimum level value a minimum alarm will be triggered This time only applies for the initial start up when switching on the system See 5 2 1 Starting up in Automatic mode Low output D Active when a low alarm state is triggered Choice between a make or break contact High output E Active when a high alarm state is triggered Choose between a make or break contact circuit Auto output F Active in automatic mode Choose between a make or break contact circuit Input filter G During the set time the input signal is filtered which can create steadier control behaviour Working range H This signal indicates whether the level is between the Upper Limit and Lower Limit Choose between a make or break contact circuit PT100 output I PT100 temperature is below the set value Switch contact Remarks See 4 4 If the PT100 option has not been applied set the parameter to O PT100 reference J When the value of the PT100 element exceeds this value the Overflow Alarm will be activated This reference value is a temperature that falls between 150 and 199 C Since the display does not have enough characters a value of 50 to 99 will be displayed Valve function L This defines the behaviour of the valve output during Low Alarm Failsafe The valve closes when a low alarm state is triggered reset via the Restart key Normal The valve remains open during when a low alarm state is trigg
17. er contact NO NC Max 24 VDC 1A High alarm Linked to high level setting Voltage free changeover contact NO NC Max 24 VDC 1A Automatic Current controller mode Automatic or manual operation Voltage free changeover contact NO NC Max 24 VDC 1A Working range Level between Upper Limit and Lower Limit Voltage free changeover contact NO NC Max 24 VDC 1A Failure General controller or sensor failure See 8 Failures Voltage free changeover contact NO NC Max 24 VDC 1A Buzzer Acoustic signal 87 dB at a distance of 1 metre Power supply The DC206 depends on the model to supply via the mains 230 VAC 50 60 Hz or via an external stabilised power supply that 24 VDC gt 3A delivers Note When the DC206 is supplied with a 24 VDC source the supply cable may not be any longer than 30 metres Oct 2008 rev 7 SvdP pg 8 32 Accuracy 1 of the maximum value 100 Ambient conditions The DC206 controller comes under class II EN 6101 IEC 664 Declaration of Conformity See chapter 10 CE declaration of the DC206 level controller Ambient temperatures 15 C to 50 C Climate resistance When using the DC206 for applications in the open air it is recommended to place it in a metal case to protect it against direct sunlight and other weather influences The maximum permissible relative humidity is 95 Height The DC2006 may be applied at a maximum height of 2000m Ventilation No specific requirements appl
18. ered If the setting 0 then the valve will close in the event of a low alarm the alarm is still maintained at a higher level If the setting 1 then the valve will remain open in the event of a low alarm the alarm is reset at a higher level PT100 Restart N This defines the function of the PT100 input If no PT100 has been connected the input function can be restarted externally via this controller input after an alarm state has been triggered Oct 2008 rev 7 SvdP pg 12 32 4 3 Factory settings To change the factory settings the DC206 has to be set to the change mode Press the Select and Restart keys simultaneously for 3 seconds The left position of the display will then indicate the code for the parameter to be changed The two right positions indicate the current value of this parameter The value on the display flashes The parameter value can be adjusted with the Up position 3 and Down position 4 keys Press the Select key again to switch to the next parameter to be set Once the settings have been changed these will be automatically taken over and saved After approximately 10 seconds the regulator will revert to the control mode Table 4 3 gives a list of the possible settings displayed Description Display Display delay time delay time l High alarm Repeat time Low alarm l Range i e 10 1 99 A i e 10 1 99 i e 30 1 99 i e 30 1 99 Unit
19. ff and the power supply disconnected e Installation Assemble the DC206 according to the abovementioned diagram Make sure that the jumper is internally switched to position B N e Configuration Set the limit values with the aid of the DC206 display The various settings are explained in the chapter User settings Oct 2008 rev 7 SvdP pg 22 32 6 6 24 VDC model with proportional valve The minimum requirements for putting the DC206 into operation are External 24 VDC source DC206 DS197 sensor Proportional adjustable valve The DC206 is powered by an external 24 VDC source The proportional valve is powered via the DC206 The following figure gives a schematic overview Power Input 24VDC Se 29 27 2x Fuse 4A DEEVE DS19 levelsensor Current input 4 20mA Figure 6 6 24 VAC model with proportional valve Putting into operation To put the DC206 into operation the following steps have to be taken Caution Before opening up the device must be switched off and the power supply disconnected e Installation Assemble the DC206 according to the abovementioned diagram e Configuration Set the limit values with the aid of the DC206 display The various settings are explained in the chapter User settings Oct 2008 rev 7 SvdP pg 23 32 6 7 Other 24 VDC models Power Input External dis
20. irst 3 references the standard cable length is 5 meters Oct 2008 rev 7 SvdP pg 26 32 7 Assembly 7 1 DC206 assembly location The DC206 should be assembled in a location such that it is gt easy to access gt easy to read not in direct sunlight gt does not protrude in passages or driveways gt not exposed to vibrations and shocks gt does not heat up through external irradiation 7 2 DC206 assembly The DC206 should be mounted in accordance with the hole pattern as illustrated on the back of the housing see Figure 7 1 For the wiring connection please refer to chapter 6 figures 6 1 up to and including 6 3 Optionally the DC206 can be secured to a DIN rail 115 105 133 188 Figure 7 2 Dimensional characteristics Oct 2008 rev 7 SvdP pg 27 32 8 Programme diagram Definitions of the levels in the application SEER EER ER High alarm Controlled level AE Lower limit vee EER anes Low alarm Oct 2008 rev 7 SvdP pg 28 32 9 DC206 failures The most common failures that occur with the DC206 are incorporated into the failure overview below The key references refer to Figure 5 1 If you experience a failure that is not listed in the table we recommend that you contact DeMaCo Holland bv Before you call note the information on the DC206 and senor type plates This will enable our service department to help you quickly 9 1 Failure description DC206 does not give any reado
21. is done according to the set values On the initial start up the DC206 follows the set maximum filling time see installation setting C until the Upper limit level has been reached After a brief waiting time the DC206 then switches over to the normal operation mode and is within its working range working range output is switched and follows the set alarm delays see factory settings Oct 2008 rev 7 SvdP pg 16 32 5 2 2 Starting up in Manual operation mode When the DC206 is started up in manual operation mode after the self test the fill valve can be opened or closed by operating the Open key 6 Filling is now effected as the fill valve is being opened by the operator The display indicates the current value and no acoustic alarm will be given for the set alarms In the event of a High Alarm the LED in the Open key 6 will flash and the display will alternately read 100 and Attention all settings and alarms will be ignored Operation can now be switched over to automatic mode Oct 2008 rev 7 SvdP pg 17 32 6 Connection Overview 6 1 230 VAC model with 230 VAC open close valve The minimum requirements for putting the DC206 into operation are DC206 230 VAC solenoid for open close valve DS197 sensor The DC206 is powered directly from the mains The following figure gives a schematic overview Power Input en EI Be aware 230VAC El 230VAC NOS NO 8
22. n Out switch 10 Restart Oct 2008 rev 7 SvdP pg 29 32 of the safety standards gt PT100 has been gt Check correct level and activated the PT100 sensor if present Level measurement is A failure source is present in Remove radiation source inaccurate the vicinity of the system which is emitting electromagnetic radiation Table 9 1 DC206 Level Controller Failure Overview 9 2 Low alarm failure Setting parameter L valve function when there is a low alarm Failsafe mode The Failsafe function is applied to prevent the application from continuous overflow and demand for more liguid due to unknown causes This function blocks the fill valve when a low alarm is present in order to prevent the application from continuous filling when no operational personnel are present When this function has been activated and a low alarm is indicated the controller should be restarted to release the fill valve for automatic level control Normal mode This mode can be selected if a low alarm is indicated freguently and there is no danger of overflow The low alarm and corresponding contact will be reset if the level increases In this mode the fill valve remains open and the application continues to fill This can occur with longer supply lines and lower filling pressures The acoustic signal will be triggered and should be reset to acknowledge that an alarm has been triggered 9 3 High alarm failure In the
23. play 29 24VDC ex Fuse 4A a ee N 26 N NOS HE NOS Common 7 DC206 F 20 ee 31 32 DS197 Fon levelsensor Current input 4 20mA de Figure 6 7 1 24 VAC model with open close valve and external display Power Input External display 24VDC ex Fuse 4A 28 29 OND Ad fo Ne 26 Sg ND9 NO8 Common 7 ry 0 a EL TT f DS197 OMe Serene Current input N F ar 4 P0mA Pad Figure 6 7 1 24 VAC model with open close valve and external display Oct 2008 rev 7 SvdP pg 24 32 6 8 Terminal blocks The following table gives the function of the connections Connection Name PIN Wire colour 1 Safety ground PE 2 Safety ground PE 3 230 VAC L 4 230 VAC L 5 230 VAC N 6 230 VAC N 7 Open close valve Common 8 Open close valve Normally Open 9 Open close valve Normally Closed 10 Overflow safety device Common 11 Overflow safety device Normally Open 12 Overflow safety device Normally Closed 13 Proportional valve 4 Yellow 14 PT100 H 24 VDC 4 Black 15 PT100 H 24 VDC 5 Yellow green 16 PT100 1
24. re 2 2 Overview of the DC206 operating elements 2 2 Display and operating elements The following elements can be found on the control panel Oct 2008 rev 7 SvdP pg 6 32 Display with three positions Displays the instantaneous value set values error messages and other process values Flashing digits indicate that the PT100 is active 1A The level values are given in percentages 0 100 2 Symbolic representation of the various level settings in the form of four bullet points The corresponding indicators in the display indicate which level is being shown in the display 2A Low alarm level Low Alarm is activated by a level below this value 2B Start fill level Lower limit The fill valve is opened 2C Stop fill level Upper limit The fill valve is closed 2D High alarm level High Alarm is activated by a level above this value 3 Value up key For increasing the values to be set 4 Value down key For lowering the values to be set 5 Select key This is used to select the parameter changes 6 Open key This key is used for operating the fill valve in manual operation mode The key is equipped with a green LED which lights up when the fill valve is open PT100 can close the valve if necessary 7 Auto key Switches between manual operation mode and automatic mode The key is equipped with a green LED which lights up when the DC206 is in automatic mode 8 Restart key This is used to re
25. start the DC206 after an alarm state has been triggered The key is equipped with an orange LED which lights up when restart has to be initiated 9 Reset key The acoustic alarm signal is accepted switched off with this key The key is equipped with an orange LED which lights up if an alarm state has been triggered 10 Main switch 11 Fuse holder 1 12 Fuse holder 2 Waarde omhoog Value up A Waarde omhoog toets Pe rere Auto Automatic Waarde omlaag Value down l Restart Restart Waarde omlaag toets Resta Restart toets Select Select Herstel alarm Reset Alarm Open Open Select Select toets n Herstel alarm toets by Open Open toets Oct 2008 rev 7 SvdP pg 7 32 3 Technical details General functionality description Digital controller two point regulator for level control Proportional control Two alarm points for low and high level Easy to set and operate by means of the key pad 2 2 Read out level in 0 100 of the application Level free programmable Alarm points free programmable Main switch two pole design Double fused Connection for extra measuring sensor PT100 Overflow Measuring inputs Level sensor Input signal 4 20mA Loop PT100 input switch point is adjustable between 150 C and 199 C Outputs Open Close valve control Voltage free changeover contact NO NC Max 230 VAC 1A or 24 VDC 3A PT100 output 24 VDC max 125mA Low alarm Linked to low level setting Voltage free changeov
26. tic Max fill time C 1 99 30 Minutes Low alarm 0 mak D 0 1 0 ie output 2 break High al 0 make igh alarm s E 0 1 0 2 break activate output i deactivate 0 make Auto output F 0 1 0 2 break Input filter G 1 10 1 Second Working range 0 make H 0 1 0 2 break activate deactivate 0 lt Low active T measurement lt T set PT100 input A 0 1 0 1 gt High active T measurement gt T set PT100 J 50 99 73 Limit value for overflow reference alarm Fill valve 0 Failsafe fill valve closes function 1 Normal remains open in the event of L 0 1 0 alarm remains at high a low alarm level output PT100 Restart 0 PT100 input Input function N 0 1 0 1 Restart function alarm reset to higher level Table 4 2 List of the values that can be set for the DCDC206 installation settings Oct 2008 rev 7 SvdP pg 11 32 Functions Valve response time A To prevent oscillation the valve will be controlled at a level for the duration of the set time the value exceeds See 4 1 Level settings Upper limit and Lower limit values Start up mode B Start up after switching the controller on in Automatic mode or Manual operation mode Max Fill time C If when starting up the system in Automatic mode the level in the application is below the low level filling will have begun during start up During this Maximum Fill Time no alarm signal will be triggered When the set time has elapsed and the lev
27. ticker Wearing safety goggles is compulsory Warning low temperatures Wearing safety gloves is compulsory This manual should at least be available for inspection at the department manager s office We also recommend that this manual is copied and kept at the workplace next to level controller in a binder or insert folders We also advise you to read the DeMaCo safety instructions Safety Guidelines for working with low temperature media thoroughly These instructions give detailed information on working with cryogenic liquids If several copies of these instructions are required in order to create a safe workplace for the operator s you can make more copies Oct 2008 rev 7 SvdP pg 3 32 2 Description The DC206 level controller is a level regulator to which various types of sensors can be connected The DC206 has a display that indicates the liquid level in percentages The DC206 is available with an open close valve and a proportional valve The open close valve model of the DC206 has a potential free relay contact to activate a digital valve so that the DC206 operates as a two point regulator The DC206 has a proportional output for a proportional valve which sends out a current between 4 and 20 mA so that the DC206 operates as a single point regulator The controller can also be set such that the fill valve can be operated manually In addition to an upper and lower limit for the fill level a low and high alarm level
28. ut DC206 gives an alarm signal and display indicates 0 DC206 gives an alarm signal and display indicates 100 flashing DC206 gives an alarm signal and display indicates flashing DC206 level controller Failure Overview Possible cause gt No power supply gt Cable cut gt Loose plug connection gt Fuses are burnt out gt Low alarm gt Too much fluid drainage gt Filling pressure is too low gt Tank is empty gt Valve does not open gt High alarm gt Fill valve does not close properly gt Filling pressure is too high gt Valve response time is to long gt Max filling level is too high gt There is a kink in the sensor cable gt Sensor is defect gt Central processor is defect gt Sensor is damp Check the power supply Check the cable Restore connection Check the voltage and then replace the fuses gt Reset acoustic signal gt Check liquid supply gt Check liquid drainage i e leakage gt Start up DC206 after performing the checks Reset acoustic signal Check liquid supply Reduce response time Reduce max filling level Start up DC206 after performing the checks Check the cable Check the signal 4 20 mA gt Call DeMaCo Holland bv gt Dry the sensor observance On Out switch 10 11 and 12 Reset alarm Restart Reset alarm See 4 2 Restart O
29. y to the ventilation of the area in which the product is placed Cleaning The outer part of the device can be cleaned with a damp cloth and non caustic cleaning agent Housing The DC206 has a plastic housing with a lockable lid and transparent polycarbonate window Model IP 65 Fuses The DC206 is double fused Fuse type Glass fuse 4 x 20 mm slow Fuse value 230 VAC model 1A 24 VDC model AA Oct 2008 rev 7 SvdP pg 9 32 4 Settings The DC206 contains a number of settings These can be changed by means of the front panel The internal settings are 4 1 Level settings For changing the level settings the Select key has to be held down for 1 second The indicator for the selected level will then light up position 1A Figure 2 2 The level value can be adjusted with the Up position 1A Figure 2 2 3 and Down position 4 keys Press the Select key again to switch to the next value that has to be set Once the settings have been changed these will be automatically taken over and saved After approximately 10 seconds the regulator will revert to the control mode Table 4 1 gives a list of the possible settings that are displayed Description Display indicator Position Maximum Unit number values Low alarm 10 2A 1 99 Lower limit ie iG 2B 1 99 Upper limit i e 60 2C 1 99 High alarm i e 85 l 2D 1 99 Table 4 1 List of the values that can be set for the four DC2
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