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 Ordering Information

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Series DTA : Delta A Series Temperature Controller

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Panel Size (W × H)

4848 : 1/16 DIN W48 × H48mm; 9648: 1/8 DIN W96 x H48; 4896 : 1/8 DIN W48 × H96mm;

7272 : W72 × H72mm; 9696 : 1/4 DIN W96 × H96mm

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Output Selection

R : Relay output, SPDT (SPST: 1/16 DIN size), 250VAC, 5A

V : Voltage Pulse output, 14V+10% ~ -20%(Max. 40mA)

C : Current output, 4~20mA

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Communication

(

tional

)

0 : No interface

1 : RS-485

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Current Transformer

(CT) Function

(Optional)

None : No CT function (Current transformer is not provided)

T : Current transformer is provided (only DTA7272 series support this function)

 Current Transformer (CT) Function

The Current Transformer (CT) function is used with the alarm output. When using a current transformer (CT) with the controller, change the corresponding alarm

output mode to mode 13 (alarm output set value is 13), then turn to operation mode and set the current lower-limit and current upper-limit. You can set current

alarm range between 0.5A ~ 30A, display resolution is 0.1A and measure accuracy is +/- 0.5A.

 Communication Parameters List

Controller offers a RS-485 port for serial communication.

• Supporting transmission speed: 2400, 4800, 9600, 19200, 38400bps

• Communication protocol: Modbus (ASCII)

• Non-supported formats: 7, N, 1 or 8, O, 2 or 8, E, 2

• Available communication address: 1 to 255, 0 is broadcast address

• Function code: 03H to read the contents of register (Max. 3 words). 06H to write 1 (one) word into register.

Content Explanation

4700H (R) Process value (PV) Measuring unit is 0.1, updated one time in 0.5 second

4701H Set point (SV)

Unit is 0.1,

C or

4702H Upper-limit alarm 1

4703H Lower-limit alarm 1

4704H Upper-limit alarm 2

4705H Lower-limit alarm 2

4706H Upper-limit of temperature range The data content should not be higher than the temperature range

4707H Lower-limit of temperature range The data content should not be lower than the temperature range

4708H PB Proportional band 0.1 to 999.9, unit is 0.1

4709H Ti Integral time 0 to 9999

470AH Td Derivative time 0 to 9999

470BH Heating/Cooling hysteresis 0 to 9999

470CH~ 470FH Reserved

4710H Input temperature sensor type Please refer to the contents of the “Temperature Sensor Type and Temperature Range” for detail

4711H Control method

0: PID (default), 1: ON/OFF,

2: manual tuning

4712H Heating/Cooling control cycle 1 to 99 second

4713H Proportional control offset error value 0% to 100%

4714H Temperature regulation value -999~999, unit: 0.1

4715H Alarm 1 type Please refer to the contents of the “Alarm Outputs” for detail

4716H Alarm 2 type Please refer to the contents of the “Alarm Outputs” for detail

4717H Temperature unit display selection

C : 1 (default),

F : 0

4718H Heating/Cooling control Selection Heating: 0 (default), Cooling: 1

4719H Control Run/Stop setting Run: 1 (default), Stop:0

471AH Communication write-in selection Communication write in disabled: 0 (default), Communication write in enabled: 1

471BH Software version V1.00 indicates 0 x 100

4729H AT Setting OFF: 0 (default), ON:1

Code 0 Normal operation (No error)

Code 1 Initial process

Code 2 Initial status (Temperature is not stable)

Code 3 Temperature sensor is not connected

Code 4 Temperature sensor input error

Code 5 Measured temperature value exceeds the temperature range

Code 6 No Int. error

472BH (R)

Code 7 EEPROM Error

4733H CT monitor value Unit is 0.1A

Note: R means “read only” value