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(When Y=0: reverse, Y=1: forward) 

To set Alarm 3: Alarm 3 function is available when an output board is connected to Output 2. Use the parameter 

  in

Initial

Setting Mode

, press the key ▲ or ▼ to select for the following control output items: H1H2, C1H2… H1A2(H defines heating, C

defines cooling, 1 indicates Output1, 2 indicates Output2 , A indicates Alarm3).

Select x1A2( set x to H or C) to operates Alarm3. To set Standby Alarm: Use the parameters

  in 

Initial 

Setting Mode

  to set the digit Y of value xxxY (When Y=0: normal opeartion, Y=1: standby).

To set Hold Alarm: Use the parameters 

  in

Initial Setting Mode

  to set the digit Y of value xYxx ( When 

Y=0: normal operation, Y=1: Hold).

To set Peak Alarm Signal: Use the parameters 

  in

Initial Setting Mode

  to set the digit Y of value Yxxx 

(when Y=0: normal operation, Y=1: peak signal).

Note: Refer to the table 

PV Color Change Function: This controller provides PV color change function. The PV display color will be changed if the selected

alarm energized. Use the parameter 

  (PV color) in 

Initial Setting Mode

  to select the alarm, selectable items are 

,

  and 

 RS-485 Communication 

1. Supporting transmission speed: 2,400, 4,800, 9,600, 19,200, 38,400bps
2. Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2
3. Communication protocol: Modbus (ASCII or RTU)
4. Function code: 03H to read the contents of register (Max. 8 words). 06H to write 1 (one) word into register. 02H to read the bits

data (Max.16 bits). 05H to write 1 (one) bit into register.

5. Address and Content of Data Register:

Address 

Content 

Definition 

1000H 

Present value (PV) 

Measuring unit is 0.1, updated one time in 0.1 second 
The following reading value display indicates error occurs: 
8002H : Initial process (Temperature value is not got yet) 
8003H : Temperature sensor is not connected   
8004H : Temperature sensor input error   
8006H : Cannot get temperature value, ADC input error 
8007H : Memory read/write error 

1001H 

Set point (SV) 

Unit is 0.1, oC or oF 

1002H 

Upper-limit of temperature range  The data content should not be higher than the temperature range 

1003H 

Lower-limit of temperature range  The data content should not be lower than the temperature range 

1004H 

Input temperature sensor type 

Please refer to the contents of the “Temperature Sensor Type and Temperature 

Range” for detail 

1005H 

Control method 

0: PID, 1: ON/OFF, 2: manual tuning, 3: FUZZY 

1006H 

Heating/Cooling control selection  Refer to Ouputput Mode Selection 

1007H 

1st group of Heating/Cooling 

control cycle 

1~990, unit is 0.1 second. When the output setting = realy, the minimum control 

cycle is 5 second   

1008H 

2nd group of Heating/Cooling 

control cycle 

1~990, unit is 0.1 second. When the output setting = realy, the minimum control 

cycle is 5 second 1~990   

1009H 

PB Proportional band 

0.1 ~ 999.9 

100AH 

Ti Integral time 

0~9,999 

100BH 

Td Derivative time 

0~9,999 

100CH 

Integration default 

0 ~ 100%, unit is 0.1% 

100DH 

Proportional control offset error 

value, when Ti=0 

0 ~ 100%, unit is 0.1% 

100EH 

The setting of COEF when Dual 

Loop output control are used 

0.01 ~99.99, unit is 0.01 

100FH 

The setting of Dead Band when 

Dual Loop output control are 

used 

-99.9 ~ 999.9

1010H 

Hysteresis setting value of the 

1st output group   

-99.9~999.9

1011H 

Hysteresis setting value of the 

-99.9~999.9

Bit3 

Bit2 

Bit1 

Bit0 

Peak Alarm 

Hold Alarm  Reverse Alarm  Standby Alarm

Summary of Contents for CND3 Series

Page 1: ...CND3 Series Temperature Controller www omegamanual info Shop online at omega com For latest product manuals User sGuide e mail info omega com...

Page 2: ...rves the right to alter specifications without notice U S A Headquarters Servicing North America Omega Engineering Inc Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Cana...

Page 3: ...or connecting the thermocouple wires 6 Please use wires with resistance when extending or connecting a platinum resistance thermometer RTD 7 Please keep the wire as short as possible when wiring a pl...

Page 4: ...Note Not all combinations may be available Check website under All Models to see list of available models...

Page 5: ...perature 20 C 65 C Altitude Max 2000m Relative Humidity 35 80 RH non condensing Operation There are three modes of operation operation regulation and initial setting When power is applied controller g...

Page 6: ...for the selection of Thermocouple or Platinum Resistance types PT TEMP UNIT Set temperature unit it wil not be displayed when in analog input mode TEMP HIGH Set up upper temperature limit the upper li...

Page 7: ...will select P value accordingly 47 6 I Integral Time Setting display when Crtl PID FUZZY 2PID this parameter is set automatically when TUNE AT Set I value according to the selection of PID No n 0 5 Wh...

Page 8: ...eters into the selected PID group Select the n th PID n 0 5 press to set 0 5 th PID parameters Set up the 0 th PID temperature value press Set up the 5 th PID temperature value press Set up the 0 th p...

Page 9: ...to change the PV and SV display unit select decimal point and switch between F In Operation Mode SP 1 displays decimal place ex 25 5 degree SP 0 displays integral number ex 25 degree In Initial Settin...

Page 10: ...put 4 20mA or linear voltage output 0 10V user s desire output value can be attained by using compensation function For example the analog output 1 can be adjusted in and parameters in Regulation Mode...

Page 11: ...ent output L Linear voltage output S SSR output SV 3 rd digit indicates the function of accessory 2 N No function C CT measure E EVENT1 input R REMOTE input SV 4 th digit indicates the function of acc...

Page 12: ...e Some of the terms are explained as follows a Initial pattern set the program to start running at a sequential number of patterns b Initial Step set the program to start running at a sequential numbe...

Page 13: ...Y position of parameter in Initial Setting Mode e g xxxY Y is 0 or 1 0 normal 1 power off saving Note When any settings or changes of the program parameters are made please save the settings changes t...

Page 14: ...adjustment by parameter in Regulation Mode Remote lower limit Setting Remote lower limit by parameter in Regulation Mode Remote higher limit Setting Remote higher limit by parameter in Regulation Mode...

Page 15: ...Initial Setting Mode To set for heating or cooling control Select desired output control by parameter in Initial Setting Mode If no board is inserted in Output2 selection items are H1 C1 H for heating...

Page 16: ...and the AT LED in the panel goes out The calculated PID parameters are displayed in and of which their content can be revised by the user Automatic switching over Multiple PID sets Set parameter to 0...

Page 17: ...g Set a value corresponding to Y position by parameter in Initial Setting Mode such as xxYx Y can be 0 or 1 0 30A 1 100A CT2 100A setting Set a value corresponding to Y position by parameter in Initia...

Page 18: ...on F1 F2 button can be used to switch between PID and MANUAL control mode ALRS Selecting this function F1 F2 button can be used to reset Alarm Hold status SV2 Selecting this function F1 F2 button can...

Page 19: ...will return to PV SV display mode 3 Enter the new password two times in the screen The screen will return to PV SV display mode with the keys unlocked If the two entries of password are not the same...

Page 20: ...if PV value is lower than the setting value SV AL H This alarm output is OFF when PV value is higher than the setting value SV AL L ON OFF SV AL H SV AL L SV 9 Disconnection Alarm This alarm output op...

Page 21: ...PV Measuring unit is 0 1 updated one time in 0 1 second The following reading value display indicates error occurs 8002H Initial process Temperature value is not got yet 8003H Temperature sensor is n...

Page 22: ...r 0 15 1032H Remaining time of the executed step second Only read 1033H Remaining time of the executed step minute Only read 1034H No of currently executed step Only read 1035H No of currently execute...

Page 23: ...Linear Output 2 Adjust current 1scale 1 A Adjust voltage 1scale 1mV 1119H Adjust Lower Limit of Analog Linear Output 2 Adjust current 1scale 1 A Adjust voltage 1scale 1mV 111AH Adjust Retransmission...

Page 24: ...Starting data address 10H 08H Starting data address 10H 08H 00H 10H 01H 10H 01H 10H Number of data word Bit 00H 00H Start address data 1000H 081xH 01H 17H Data content 03H FFH Data content 03H FFH 02H...

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Page 28: ...http www omega com to contact OMEGA Engineering Inc 800 Connecticut Ave Suite 5N01 Norwalk CT 06854 USA Customer Service 1 800 622 2378 USA Canada only Engineering Service 1 800 872 9436 USA Canada on...

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