background image

The normalized result is converted by fixed coefficients determined by 

“Lo C”

 and 

“Hi C”

 parameters (when 

the normalized results is equal 0, then value 

“Lo C”

 is displayed, and when the normalized results is equal 1, 

then value 

“Hi C”

 is displayed). Expression presented below shows the manner of result calculation:

where 

means the displayed value.

10.1.1. Linear characteristic

The value of the 

“Lo C”

 parameter can be higher than the value of 

“Hi C”

 parameter. In such a case, 

for an increasing value of input current the displayed value decreases.

W=I

n

 

X

 ("Hi C"-"Lo C") + "Lo C"

10.1.2. Square characteristic

Where W means displayed value.

The normalized result is squared and further conversion is done as for linear characteristic. Conversion is 

made accordingly with the expression:

Figure. 10.1 Normal („Lo C” < ”Hi C) and inverted („Lo C” > ”Hi C) characteristic

Input current [mA]

0

4

8

12

16

20

Input current [mA]

0

4

8

12

16

20

I

Figure. 10.2 Normal („Lo C” < ”Hi C) and inverted („Lo C” > ”Hi C) characteristic

Input current [mA]

0

4

8

12

16

20

Input current [mA]

0

4

8

12

16

20

39

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ITC 450/470

User manual

Summary of Contents for ITC 450

Page 1: ...C 450 ITC 470 Read the user s manual carefully before starting to use the unit or software Producer reserves the right to implement changes without prior notice www levelprosales com ITC 450 ITC 470 w...

Page 2: ...inPt menu parameters of current and voltage inputs 7 3 6 OutP menu 7 3 7 bri parameter 7 3 8 HOLd menu 7 3 9 SECu menu 7 3 10 rS menu 7 3 11 Edit parameter 7 3 12 dEFS parameter 7 3 13 SErv menu 7 4 M...

Page 3: ...t to the safety of people or property additional independent systems and solutions to prevent such a threat must be used The unit uses dangerous voltage that can cause a lethal accident The unit must...

Page 4: ...onal and threshold control like temperature processes heating or cooling valves controlling or other Power supply voltage depending on version 85 230 260V AC DC 50 60 Hz separated or 19 24 50V DC and...

Page 5: ...uracy of cold ends temperature compensation 1 C Sensor power supply output 24V 5 10 max 100 mA stabilized Relay output 0 2 or 4 NO 1A 250V AC cos 1 OC type output 0 2 or 4 30mA 30VDC 100mW Active curr...

Page 6: ...ry EEPROM type Front panel protection IP 65 optional version with panel cut out sealing available Terminals protection IP 20 Housing type panel Housing material NORYL GFN2S E1 Housing dimensions 96 x...

Page 7: ...the unit must be conducted correctly and according to the local regulations 4 DEVICE INSTALLATION Read the basic safety requirements on page 3 prior to starting the installation Ensure that the power...

Page 8: ...tre points of multiple units due to the thermal and mechanical conditions of operation are 115 mm x 67mm Figure 4 4 The unit is designed for mounting inside housings control panel switchboard insuring...

Page 9: ...igure 4 4 Minimum distances when assembly of a number of units 115 mm 67 mm Figure 4 3 Installing of brackets and dimensions of connectors 92 mm 5 mm 12 mm 10 mm 8 5 mm 16 mm 07 www levelprosales com...

Page 10: ...clamping screws The recommended tightening torque is 0 5 Nm Loose screws can cause fire or defective operation Over tightening can lead to damaging the connections inside the units and breaking the t...

Page 11: ...the case of measurement or control signals are longer than 30m or go outside of the building then additional safety circuits are required In the case of interference from the power supply side the use...

Page 12: ...Figure 4 8 Terminals description relay and active current outputs GND DATA DATA RS 485 24V 5 10 Imax 100mA 1 2 5 6 7 8 9 10 11 12 13 14 15 3 4 31 32 33 34 35 TC 33 34 V mA RTD RTD 31 34 mV OC1 OC2 OC1...

Page 13: ...DATA RS 485 Uo 24V 5 10 Imax 100mA 1 2 5 6 7 8 9 10 11 12 13 14 15 3 4 31 32 33 34 35 TC 33 34 V mA RTD RTD 31 34 mV OC1 opcja OC2 opcja OC1 OC2 Umax 30V DC Imax 30mA Pmax 100mW n c n c ACTIVE current...

Page 14: ...www levelprosales com 12 www levelprosales com ITC 450 470 User manual...

Page 15: ...s resistance The resistance of particular wire should not be greater than 20 If 2 wire circuit is used the resistance of wires should be as small as possible to avoid of measurement errors Measured v...

Page 16: ...load In consequence of using the suppression circuit the level of generated electromagnetic disturbances is lower and the life of relay contacts rises The connection circuit should not be changed whil...

Page 17: ...www levelprosales com 15 www levelprosales com ITC 450 470 User manual...

Page 18: ...clean with solvents For cleaning use warm water with small amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol Product marked with this symbol should not be...

Page 19: ...of the display mode Symbol used in the manual v After turning the power supply on device ID and software version are showed on the display next the controller goes to the measurement mode 6 PRINCIPLE...

Page 20: ...ment value do not exceeds permissible measurement range but displayed value exceeds range 999 9999 the warning Ov is displayed rather than the calculated result nominal measurement range permissible m...

Page 21: ...most right decimal point The relays LEDs and analogue outputs can be controlled depend on the current value of input signal or the peak value see HOLd menu In the measurement mode user can check main...

Page 22: ...tP SEt2 HYSt modE t on toFF unit and AL Depend on modE parameter relays can be not used or controlled over one or two thresholds values If one threshold is used Figure 6 5 the relay can be turned on m...

Page 23: ...then relay state will be turned on if the input value exceeds the border values and stay bigger or lower during at least t on see points BON DON Figure 6 7 a d e Similarly the relay will be turned of...

Page 24: ...itical situations All parameters connected with relay outputs are described in paragraph rEL1 menu 6 3 2 Two thresholds mode EOFF SEt P or SEt P2 parameter HYSt parameter A B C A C BON t oFF parameter...

Page 25: ...ce menu allow user to set all parameters connected to operation of measurement input control modes critical situations behaviour communication via RS 485 and access settings The meaning of the particu...

Page 26: ...NU ESC ENTER 7 2 PARAMETERS EDITION To start edition of any parameter user should select name of desired one using v buttons and then press ENTER 7 2 1 Numeric parameters digit change mode Numerical p...

Page 27: ...parameters can be described as a sets of values a lists out of which only one of the options available on the list can be selected for the given parameter Options of switching parameter are selected...

Page 28: ...e number password must be entered every to enter main menu every enter to main menu follows the entering of password If entered password is correct then first menu position will be displayed other wis...

Page 29: ...cond zone The hanger threshold means hanger one of SEtP and SEt2 thresholds the Smaller threshold means Smaller one of SEtP and SEt2 thresholds out LEDs lights up when relays are closed independently...

Page 30: ...e input signal drops result value of the measure will change slow causes of turning on or off relay due to thresholds values The critical situation is slowly detected so it is impossible to predict th...

Page 31: ...tc b thermocouple input type B tc E thermocouple input type E 7 3 4 inPt menu parameters of temperature inputs connection method of RTD input This parameter can be set to values tYPE connection metho...

Page 32: ...an additional decimal point on utmost right position is displayed If user defined characteristic is selected and if number of defined points is lower than 2 then warning Errc is displayed in measureme...

Page 33: ...odification of the coordinates is done accordingly to numerical parameters edition AddP dELP and EdtP options are available only if the user defined characteristic is used it means when parameter CHAr...

Page 34: ...0 current output enabled with 0 20 mA mode 4 20 current output enabled with 4 20 mA mode modb current output controlled via RS 485 interface For passive current output oFF current output disabled 4 20...

Page 35: ...0 voltage will be set to 11 V 5 5 voltage will be set to 5 5 V 1 2 voltage will be set to 1 2 V 0 6 voltage will be set to 0 6 V 0 0 voltage will be set to 0 V 33 www levelprosales com ITC 450 470 Us...

Page 36: ...on the peak drop value Scod user password 4 digits number If this parameter is set at value 0000 user password is turned off If the user do not remember his password the access to the menu is possibl...

Page 37: ...time will be not controlled this parameter defines minimal additional delay between the Modbus message and the answer of the device received and sent via RS 485 interface This additional delay allows...

Page 38: ...36 www levelprosales com ITC 450 470 User manual 7 4 MENU STRUCTURE...

Page 39: ...37 www levelprosales com ITC 450 470 User manual...

Page 40: ...nd units The first step to compute the result of measure is the calculation of the normalized result it means result of 0 1 range To do it the begin of the input range 0 mA for 0 20mA range and 4mA fo...

Page 41: ...parameter In such a case for an increasing value of input current the displayed value decreases W In X Hi C Lo C Lo C 10 1 2 Square characteristic Where W means displayed value The normalized result i...

Page 42: ...low is used and if In 1 then segment defined by points X PL 90 0 X PH 100 0 will be used User defined characteristic is defined as set of X Y points Number of the points is variable and may be set fro...

Page 43: ...is calculated accordingly to the expression on page 40 so if Iin 10 mA then 10 mA 4 mA 6 mA and this result should be divided by the width of input range 16 mA Finally the normalized result In 6 16 0...

Page 44: ...00 211 and C value is added to the result so the displayed value W 211 300 89 b Iin 2 5 mA and In 0 0938 W 287 c Iin 20 5 mA and In 1 0313 W 1295 Example 5 The square root characteristic Let the input...

Page 45: ...e selected X1 PL 0 Y1 PL 50 X2 PH 10 Y2 PH 30 and Ip 0 For these values the displayed value W 69 c Iin 20 5 mA and In 1 0313 because of the normalized In value is higher than 1 the segment defined by...

Page 46: ...p bit 2 bits are send 1 and 2 bits are accepted when receive no parity control Baud rate selectable from 1200 to 115200 bits second Transmission protocol MODBUS RTU compatible The device parameters an...

Page 47: ...t of desired output current Yes 0h 1600h State of active voltage output expressed in 1 512 V units it means that high byte express integer part and low byte fractional part of desired output voltage 0...

Page 48: ...r1 parameter bit 1 A r2 parameter bit 2 A r3 parameter bit 3 A r4 parameter 25h Yes 0 5 rESP parameter in rS menu additional response delay 0 no additional delay 1 10c option 2 20c option 3 50c option...

Page 49: ...mode 5 modb mode 3Bh Yes 0 999 t on parameter in rEL2 menu expressed in tenth of seconds or tenth of minutes depend on unit parameter register no 3Dh 3Ch Yes 0 999 toFF parameter in rEL2 menu expresse...

Page 50: ...meter register no 4Dh 4Dh Yes 0 1 unit parameter in rEL4 menu 0 seconds 1 minutes 4Eh Yes 0 2 AL parameter in rEL4 menu 0 no changes 1 on 2 off 3Ch Yes 0 999 toFF parameter in rEL2 menu expressed in t...

Page 51: ...ed via RS 485 interface Yes 0 5 Omod parameter in OUtP menu active voltege output mode 0 voltage output disabled 1 voltage output enabled with 0 5V mode 2 voltage output enabled with 1 5V mode 3 volta...

Page 52: ...e or read of single register then the device sends an error code according to Modbus RTU specifications example message no 1 Examples apply for device with address 1 All values are represent hexadecim...

Page 53: ...code 60h bottom border of the measurement range is exceeded DATA identification code 20D8h b The answer if an error occur ERROR error code 60h bottom border of the measurement range is exceeded 2 Rea...

Page 54: ...s DATA H3 L3 reg 03h 1 decimal point position 0 0 5 Read of the registers 1 2 and 3 in one message example of reading a number of registries in one frame The answer 4 Change of baud rate of all device...

Page 55: ...0 0 25 unit SEC 25 AL oFF 26 SEtP Relay R2 threshold 40 0 28 SEt2 Relay R2 second threshold 60 0 28 HYSt Hysteresis of relay R2 0 0 28 modE Operation mode of relay R2 on 28 t on Turn on delay of rela...

Page 56: ...r Extension of the top of the nominal output range 5 0 34 AL Current output value on critical exception 22 1 mA 35 Active current output configuration OUtP menu Omod Passive current output mode 4 20 m...

Page 57: ...y R2 and LED R2 control rEAL 36 H r3 Source of relay R3 and LED R3 control rEAL 36 H r4 Source of relay R4 and LED R4 control rEAL 36 HOUt Source of current output control rEAL 36 Configuration of pea...

Page 58: ...to changes of configuration registers on 36 mbtO Maximum delay between received messages 0 37 rESP Additional delay of answer transmission Std 37 RS 485 interface configuration menu rS Edit Numerical...

Page 59: ...Specification may be modified without notice in advance For More Information Visit www levelprosales com USER MANUAL METER ITC 450 470 SERIES...

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