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Delta DTB4824 User Manual

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Type: User Manual
Category: Temperature Controller
Pages: 16
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http://www.delta.com.tw/industrialautomation/

 

 

DELTA Temperature Controller 

DTB Series 

User Manual

 

 

                                                 

 


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1

http://www.delta.com.tw/industrialautomation/

 

B Series Temperature Controller 

User Manual

 

Thank you very much for purchasing DELTA B Series. Please read this instruction sheet before using 

your B series to ensure proper operation and please keep this instruction sheet handy for quick 
reference. 

 

1  

Precaution

 

 

DANGER!

 

Caution! Electric Shock! 

1. 

Do not touch the AC terminals while the power is supplied to the controller to prevent an electric shock. 

2. 

Make sure power is disconnected while checking the unit inside. 

3. 

The symbol 

  indicates that this Delta B Series Temperature Controller is protected throughout by DOUBLE 

INSULATION or REINFORCED INSULATION (equivalent to Class II of IEC 536). 

 

 

 

WARNING!

 

This controller is an open-type temperature controller. Make sure to evaluate any dangerous 

application in which a serious human injury or serious property damage may occur. 

 

1. 

Always use recommended solder-less terminals: Fork terminal with isolation (M3 screw, width is 7.0mm (6.0mm for 
DTB 4824), hole diameter 3.2mm). Screw size: M3 x 6.5 (With 6.8 x 6.8 square washer). Screw size for DTB4824: 
M3 x 4.5 (With 6.0 x 6.0 square washer). Recommended tightening torque: 0.4 N.m (4kgf.cm). Applicable wire: 
Solid/twisted wire of 2 mm

2

, 12AWG to 24AWG. Please be sure to tighten them properly. 

2. 

Do not allow dust or foreign objects to fall inside the controller to prevent it from malfunctioning. 

3. 

Never modify or disassemble the controller. 

4. 

Do not connect anything to the “No used” terminals. 

5. 

Make sure all wires are connected to the correct polarity of terminals. 

6. 

Do not install and/or use the controller in places subject to: 

• 

Dust or corrosive gases and liquid. 

• 

High humidity and high radiation. 

• 

Vibration and shock. 

• 

High voltage and high frequency 

7. 

Must turn power off when wiring and changing a temperature sensor. 

8. 

Be sure to use compensating wires that match the thermocouple types when extending or connecting the 
thermocouple wires. 

9. 

Please use wires with resistance when extending or connecting a platinum resistance thermometer (RTD). 

10. 

Please keep the wire as short as possible when wiring a platinum resistance thermometer (RTD) to the controller 
and please route power wires as far as possible from load wires to prevent interference and induced noise. 

11. 

This controller is an open-type unit and must be placed in an enclosure away from high temperature, humidity, 
dripping water, corrosive materials, airborne dust and electric shock or vibration. 

12. 

Please make sure power cables and signals from instruments are all installed properly before energizing the 
controller, otherwise serious damage may occur. 

13. 

Please do not touch the terminals in the controller or try to repair the controller when power is applied to prevent an
electric shock. 

14. 

Wait at least one minute after power is disconnected to allow capacitors to discharge, and please do not touch any 
internal circuit within this period. 

15. 

Do not use acid or alkaline liquids for cleaning. Please use a soft, dry cloth to clean the controller. 

16. 

This instrument is not furnished with a power switch or fuse. Therefore, if a fuse or power switch is required, install 
the protection close to the instrument. Recommended fuse rating: Rated voltage 250 V, Rated current 1 A. Fuse 

 


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2

type: Time-lag fuse 

17. 

Note: This controller does not provide overcurrent protection. Use of this product requires that suitable overcurrent 
protection device(s) must be added to ensure compliance with all relevant electrical standards and codes. (Rated 
250 V, 15 Amps max). A suitable disconnecting device should be provided near the controller in the end-use 
installation. 

 

2  

Display, LED and Pushbuttons

 

 

PV Display
SV Display

AT 
OUT1/OUT2

Function key

Temperature unit LED

Down key

Up

 : to display the process value or parameter type.
 : to display the set point, parameter operation read value, 

                      manipulated variable or set value of the parameter.

: flashes 

when 

the 

Auto-tuning 

operation 

is 

ON.

 : Output LED ights when the output is ON.

       : 

. Press this key to select the desired function mode and

         confirm a setting value.
      

C, F : 

.

ALM1  ~ ALM3 : Alarm output   LED, lights  when ALM1/ALM2/ALM3 is  ON.
       : 

. Press this key to decrease values displayed on the SV

         display. Hold down this key to speed up the decrements.
       :

O

Auto-tuning LED, 

, l

 : 

. Press this key to set parameters within function mode.

C :  Celsius    F : Fahrenheit 

. Press this key to increase values displayed on the SV display.

         Hold down this key to speed up the incremental action.

Mode key

 key

O

O

O

 

3  

Ordering Information 

 

DTB

1 2 3 4 5 6

7

 

 

DTB Series 

DTB : Delta B Series Temperature Controller 

1 2 3 4

 

Panel Size (W×H) 

4824 : 1/32 DIN W48 

×

 H24mm 

4848 : 1/16 DIN W48 

×

 H48mm 

4896 : 1/8 DIN W48 

×

 H96mm 

9696 : 1/4 DIN W96 

×

 H96mm 

5

  1st Output Group Selection 

R: Relay output, SPDT (SPST: 1/16 DIN and 1/32 DIN size), 250VAC, 5A
V: Voltage pulse output, 14V +10

~ -20

(Max. 40mA) 

C: DC current output , 4 ~ 20m A 
L: Linear voltage output, 0~5V, 0~10Vdc 

6

  2nd Output Group Selection 

R: Relay output, SPDT (SPST: 1/16 DIN and 1/32 DIN size), 250VAC, 5A
V: Voltage pulse output, 14V +10

~ -20

(Max. 40mA) 

7

  EVENT Inputs / CT function 

(Optional) 

None : No EVENT input , No CT (Current transformer) 
E: EVENT input is provided, No CT (Current transformer) 
T: CT (Current transformer) is provided, No EVENT input 
V: Valve control. 

                             

Note 1 :

 

DTB4824 series: no optional function provided and no extra alarm output supported, but user can set 
2nd output as alarm mode. 

Note 2 :

 

DTB4848 series: only one alarm output when optional function supported, but user can set 2nd output as 
2nd alarm output. 

Note 3: “Valve control” with feedback selection is only available for DTB9696RRV.

 

 
 
 

 


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3

 

4  

Specifications

 

 

 

5  

Temperature Sensor Type and Temperature Range

 

 

Input Temperature Sensor 

Type 

Register Value

LED Display 

Temperature Range 

0~50mV Analog Input 

17 

 

-999 ~ 9999 

4~20mA Analog Input 

16 

 

-999 ~ 9999 

0~20mA Analog Input 

15 

 

-999 ~ 9999 

0V~10V Analog Input 

14 

 

-999 ~ 9999 

0V~5V Analog Input 

13 

 

-999 ~ 9999 

Platinum Resistance (Pt100) 

12 

 

-200 ~ 600

o

Platinum Resistance (JPt100) 

11 

 

-20 ~ 400

o

Thermocouple TXK type 

10 

 

-200 ~ 800

o

Thermocouple U type 

 

-200 ~ 500

o

Thermocouple L type 

 

-200 ~ 850

o

Thermocouple B type 

 

100 ~ 1800

o

Thermocouple S type 

 

0 ~ 1700

o

Thermocouple R type 

 

0 ~ 1700

o

Thermocouple N type 

 

-200 ~ 1300

o

Input Voltage 

100 to 240VAC    50/60Hz 

Operation Voltage 
Range 

85% to 110% of rated voltage 

Power Consumption 

5VA max. 

Memory Protection 

EEPROM 4K bit (non-volatile memory (number of writes: 100,000) 

Display Method 

2 line x 4 character 7-segment LED display Process value(PV): Red color, Set point(SV): 
Green color 
Thermocouple: K, J, T, E, N, R, S, B, L, U, TXK 
3-wire Platinum RTD: Pt100, JPt100 

Sensor Type 

Analog input: 0~5V, 0~10V, 0~ 20 m A, 4~20 m A, 0~50mV 

Control Mode 

PID, ON/OFF, Manual or PID program control (Ramp/Soak control) 
Relay output: SPDT (SPST: 1/16 DIN and 1/32 DIN size), Max. load 250VAC, 5A resistive load
Voltage pulse output: DC 14V, Max. output current 40mA 
Current output: DC 4 ~ 20m A output (Load resistance: Max. 600

Ω

Control Output 

Linear voltage output: 0~5V, 0~10V 

Display Accuracy 

0 or 1 digit to the right of the decimal point (selectable) 

Sampling Rate 

Analog input: 150 msec/ per scan Thermocouple or Platinum RTD: 400 msec/per scan 

RS-485 Communication MODBUS ASCII / RTU communication protocol 
Vibration Resistance 

10 to 55Hz, 10m/s

2

 for 10min, each in X, Y and Z directions 

Shock Resistance 

Max. 300m/ s

2

, 3 times in each 3 axes, 6 directions 

Ambient Temperature 

o

C to +50 

o

Storage Temperature 

-20 

o

C to +65 

o

Altitude 

2000m or less 

Relative Humidity 

35% to 80% (non-condensing) 

 


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4

Thermocouple E type 

 

0 ~ 600

o

Thermocouple T type 

 

-200 ~ 400

o

Thermocouple J type 

 

-100 ~ 1200

o

Thermocouple K type 

 

-200 ~ 1300

o

Note 1 : An external 250

Ω

 precision resistor should be connected when the current input is selected as the input 

temperature sensor type.. 

Note 2 : 

  (Operation mode) must be set if user wish to specify decimal point position. Except for the 

thermocouple B, S, R type, the decimal point positions of all the other thermocouple type input sensors can 
be set. 

 

The default range of analog input is -999 ~ 9999. For example, when a 0~20mA analog input is selected as the 

input temperature sensor type, -999 indicates 0mA and 9999 indicates 20mA. If change the input range to 0 ~ 
2000, then 0 indicates 0mA and 2000 indicates 20mA. One display scale is equal to 0.01mA. 

 

6  

Operation

 

 

There are three modes of operation: operation, regulation and initial setting. When power is applied, controller 
gets into the operation mode. Press the 

 key to switch to regulation mode. If the 

 key is pressed for 

more than 3 seconds, controller will switch to the initial setting mode. Pressing the 

 key while in the 

regulation mode or initial setting mode, forces the controller to return to the operation mode.   
PV/SV: Sets the temperature set point and displays the temperature process value. Use 

  keys to set the 

temperature set point. 

Setting method: While in any function mode, press the 

  key to select the desired function and use the 

 

keys to change settings. Press 

  key to save the changes.   

 

 
The next flow chart shows how to switch for settings and internal functions: 

 

Regulation Mode

Operation Mode

Initial Setting Mode

Press       key less than 3 sec

Press       key

Press       key more than 3 sec

Press       key

 

Regulation Mode

 

Operation Mode

 

Initial Setting Mode

 

Auto-tuning

(Set in PID control and RUN mode)

Press

 

Use              key to

set temperature set point

Press

 

Set input type

Press

 

4 groups PID modes (n=0~3). When n=4,
PID control is auto regulated.

Press

 

Press

Control setting RUN or STOP

 

Set temperature unit

do not display when analog input

Press

 

PD control offset

setting

(When PID control is ON and Ti=0, 
 set the value of PdoF.

Press

 

Start pattern setting (PID

program control and         

Time setting.

Press

 

Set upper-limit of
temperature range

Press

 

Heating hystereisis setting

(Set in ON/OFF control mode)

Press

 

Decimal point position selection

(except for B, S, R type, all the
 other types can be set)

Press

 

Set lower-limit of

temperature range

Press

 

Cooling hystereisis setting

(Set in ON/OFF control mode)

Press

 

Upper-limit alarm 1

(This parameter is available only when 
  ALA1 function enables)

Press

Select control mode

(See "Pattern and set Editing 
selection" for detail)

Press

 

 


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5

 

or

Heating/Cooling

control cycle setting

(Set in PID control mode)
Press

 

Lower-limit alarm 1

(This parameter is available only when 
  ALA1 function enables)

Press

 

Select heating/cooling control
or dual loop output control

Press

Control cycle setting 

of 2nd output group

(Set in PID control and Dual Loop

 output control mode)

Press

 

Upper-limit alarm 2

(This parameter is available only when 
  ALA2 function enables)

Press

 

Alarm 1 mode setting

Press

 

P value of  2nd output group =

(P value of 1st output group) 

P value of 1st & 2nd output group
during dual loop output control

Press

 

Lower-limit alarm 2

(This parameter is available only when 
  ALA2 function enables)

Press

 

Press

Alarm 2 mode setting

 

Press

Dead Band (Set in Dual Loop

output control mode)

 

Upper-limit alarm 3

(This parameter is available only when 
  ALA3 function enables)

Press

 

Press

Alarm 3 mode setting

 

Press

             Switch setting for feedback

signal of valve. (Display when
valve control is ON) 

 

Lower-limit alarm 3

(This parameter is available only when 
  ALA3 function enables)

Press

 

Set system alarm

Press

 

Press

Automatically regulate 

feedback value.

Press

(Display when valve control is ON)

 

Setting lock mode

Press

 

Communication write function
enable/disable

Press

Time setting for valve from

full close to full open. (Display when 

valve control is ON)

Press

 

Display and adjust output value 
of 1st output group

(Display in PID control mode and manual

 RUN mode)

Press

ASCII, RTU communication
format selection

Press

 

Press

Valve Dead Band setting.

Press

(Display when valve control is ON)

 

Display and adjust output value 
of 2nd output group

(Display in dual loop PID control mode and 
 manual RUN mode)

Press

 

Communication address
setting

Press

 

Upper-limit regulation of

valve output with feedback to 

controller. (Display when valve

signal feedback function is ON)

Press

 

In case of using an external CT, 
the controller displays the current
value being measured by CT, if 
the control output is ON

Press

to return to set target temperature

Communication baud
rate setting

Press

 

Lower-limit regulation of

valve output with feedback to 

controller. (Display when valve

signal feedback function is ON)

Press

 

Valve output with feedback.

(Display when valve feedback 

function is ON)

Press

 

Data length setting

Press

 

Press

Regulate temperature

deviation value

 

DA value feedback of valve.

(Display when valve feedback 

function is ON)

Press

Back to target temperature

Parity bit setting 

Press

 

(The setting display when analog output)
Press

Regulate upper-limit of analog 

output value

 

 

Stop bit setting

Press        to return input type setting

 

Press

Regulate lower-limit of analog 
output value

(The setting display when analog output)

to return to auto-tuning mode

 

 

 

 


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6

  1 Scale = 2.8uA = 1.3mV for tuning output value 

PID mode selection: any one of 4 groups PID modes (n=0~3) can be selected. When n=4, program will 

automatically select 1 group PID that is most useful for target temperature. 

Select n=0~4 to 

decide PID mode.

0~3 groups PID

Press

 

PID setting: n=0.Press

 

PID setting: n=3.Press

 

 

Proportion band setting: n=0.

Press

 

Proportion band setting: n=3.

Press

 

 

Ti setting: n=0. Press

 

Ti setting: n=3. Press

 

 

Td setting: n=0.Press

 

Td setting: n=3.Press

 

 

Integral deviation setting: n=0.

AT setting.

Press

back to PID deviation setting

Integral deviation setting: n=3.
AT setting.

Press

back to PID deviation setting

 

 

Pattern and step editing selection: edit 

in 

  parameter. The following display is the example operation of pattern 

No. 0. 

select OFF

Press

Select desired editing pattern
number

select number

 

Edit temperature of step No. 0
of pattern No. 0 

Press

 

Select actual step No. when 
program control is executing

Press

 

Exit p

attern and step editing selection

Switch to                 and continue setting

 

Edit time of step No. 0 of 
pattern No. 0, unit is hh.mm

Press

Set additional execution cycle

number(0 to 99)

Press

 

 

Set step No. 07 in order 

 

Press

Edit temperature of step No. 7

of pattern No. 0 

Set link pattern, OFF indicates

the program  end

Press        to return pattern No. editing
mode

 

 
 
 

Press         to set actual step No.

Edit time of step No. 7 of 
pattern No. 0, unit is hh.mm

 
 
 

 

7  

Dual Loop Output Control (Heating / Cooling Control)

 

 

OFF

PV

Set point

ON

Heating

Dead band

Heating hysteresis 

Figure 1. Output 

 

during dual loop output control

operation of ON/OFF control

Cooling hysteresis 

Cooling

Temperature control can be achieved either by heating or cooling. In DTB 
series, heating and cooling can be operated simultaneously (Dual Loop 
output control) to perform temperature control. When Dual Loop output 
control are used, two control outputs must be connected to the heating and 
cooling devices. Please refer to the following for the operation: 

 

 : This parameter is used to select heating or cooling action if 

operate either heating or cooling function in this controller. When selecting 

, 1st output group is heating (reverse) control, and when selecting 
, 1st output group is cooling (forward) control. At this moment, 2nd 

output group is regarded as an alarm output. If user select 

 or

it indicates that user can operate Dual Loop output control function in this 
controller. When selecting 

, 1st output group is heating (reverse)

control and 2nd output group is cooling (forward) control. When selecting 

, 1st output group is cooling (forward) control and 2nd output group is 

heating (reverse) control. 

PV

0

Output

Dead band: dead
band width=positive

Set point

Heating

Cooling

Figure 2. PID

 Dead Band is positive

 control,

 


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7

 
In DTB series, P (Proportional Band), I(Integral Time) and D(Derivative 
Time) parameters are automatically set by using the Auto-tuning (AT) 
function. 

: This parameter is for the control mode that must be Dual Loop 

output control with PID control method configured. The value of P, I and D of 
1st output group can be set immediately. The P value of 2nd output group is 
equal to (P value of 1st output group) x 

  and the value of I and D of 

2nd output group are the same as the value of I and D of 1st output group.

: Dead Band, shown as the following figure 1, 2 and 3. This 

parameter sets an area in which the heating and cooling control output is 0 
centering around the set point in a Dual Loop output control mode. 
 

Settings lock.

 To avoid incorrect operation, two key lock functions 

are provided. 

 : Lock 1 can lock all settings. All parameters and 

temperature settings can be locked to disable changes. 

 : Lock 2 

can lock settings except the SV (Set point) value. All parameters and 
temperature settings can be locked with the exception of the SV value. 

Press 

 and 

 key simultaneously, the “Lock” status can be 

released. 

PV

0

Output

Dead band: dead
band width=negative

Set point

Heating

Cooling

Figure 3. PID

 Dead Band is negative

 control,

 

 

 

 

 

8  

Alarm 

Outputs

 

 

There are up to three groups of alarm outputs and each group allows thirteen alarm types in the initial setting 
mode. The alarm output is activated whenever the process temperature value (PV) is getting higher or lower than 
the set point of alarm limit. 

 

Set 

Value 

Alarm Type 

Alarm Output Operation

Alarm function disabled 

Output is OFF 

Deviation upper- and lower-limit:   
This alarm output operates when PV value is higher than the setting value 
SV+(AL-H) or lower than the setting value SV-(AL-L). 

ON

OFF

SV-(AL-L)

SV

SV+(AL-H)

 

2 Deviation 

upper-limit: 

 

This alarm output operates when PV value is higher than the setting value 
SV+(AL-H). 

ON

OFF

SV

SV+(AL-H)

 

3 Deviation 

lower-limit: 

 

This alarm output operates when PV value is lower than the setting value SV-(AL-L). 

ON

OFF

SV

SV-(AL-L)

 

Reverse deviation upper- and lower-limit:   
This alarm output operates when PV value is in the range of the setting value 
SV+(AL-H) and the setting value SV-(AL-L). 

ON

OFF

SV

SV-(AL-L)

SV+(AL-H)

Absolute value upper- and lower-limit:   
This alarm output operates when PV value is higher than the setting value AL-H or 
lower than the setting value AL-L. 

ON

OFF

AL-L

AL-H

Absolute value upper-limit:   
This alarm output operates when PV value is higher than the setting value AL-H. 

ON

OFF

AL-H

Absolute value lower-limit: 
This alarm output operates when PV value is lower than the setting value AL-L. 

ON

OFF

AL-L

Deviation upper- and lower-limit with standby sequence: 
This alarm output operates when PV value reaches set point (SV value) and the 
value is higher than the setting value SV+(AL-H) or lower than the setting value 
SV-(AL-L). 

ON

OFF

SV

SV-(AL-L)

SV+(AL-H)

 


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8

Deviation upper-limit with standby sequence: 
This alarm output operates when PV value reaches set point (SV value) and the 
reached value is higher than the setting value SV+(AL-H).   

SV+(AL-H)

ON

OFF

SV

10  Deviation lower-limit with standby sequence:   

This alarm output operates when PV value reaches the set point (SV value) and the 
reached value is lower than the setting value SV-(AL-L). 

SV-(AL-L)

ON

OFF

SV

11  Hysteresis upper-limit alarm output: 

This alarm output operates if PV value is higher than the setting value SV+(AL-H). 
This alarm output is OFF when PV value is lower than the setting value SV+(AL-L).

 

ON

OFF

AL-L AL-H

12  Hysteresis lower-limit alarm output:   

This alarm output operates 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

AL-H AL-L

13  CT alarm output: 

This alarm operates when the current measured by transformer (CT) is lower than 
AL-L or higher than AL-H (This alarm output is available only for the controller with 
current transformer). 

ON

OFF

AL-L

SV

AL-H

14  When program control is end status, alarm output is ON. 

 

15  When RAMP UP status happens to PID program control, alarm output is ON. 

 

16  When RAMP DOWN status happens to PID program control, alarm output is ON. 

 

17  When SOAK status happens to PID program control, alarm output is ON. 

 

18  When RUN status happens to PID program control, alarm output is ON. 

 

Note: AL-H and AL-L include AL1H, AL2H, AL3H and AL1L, AL2L, AL3L 

9   

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. 

 

10   

EVENT Inputs Function

 


 

There are two optional event inputs (contact inputs) supported (EVENT1and EVENT2) in DTB series. 

EVENT1: 

RUN/STOP operation can be executed by RUN/STOP parameters (Operation Mode) or via the 

communication. User also can control RUN/STOP operation by EVENT 1 in DTB series. The control 

output is ON if the circuit of EVENT 1 is open when the controller is operating. Otherwise, the 

controller will stop output if the circuit of EVENT 1 is short or when the system parameter of the 

controller is set to STOP mode. 

EVENT2: 

DTB series allows user can switch two temperature setting value by changing the status (open/short) of 

EVENT 2. Each temperature setting value has independent control parameters. 

 

 

11   

PID Program Control (Ramp/Soak Program Control)

 

 

Description of Function and Parameters Setting: 

PID program control by 8 patterns (Pattern No. 0~7) is supported in DTB series. Each pattern contains 8 steps 

(step No. 0 ~ 7), one Link Pattern parameter, one Cycle parameter and one Actual Step parameter. 

 

Start Pattern

 

  is in operation mode and it is used to set the Start Pattern of PID program control (This 

parameter appear in 

 mode only). 

 

Steps :

 Include set point X and execution time T, these two parameters setting. The set point (SV) should reach 

temperature X after the period of execution time T. If the set point is the same as the result of the previous 
setting, then it is called Soak program control. If not, then it is called Ramp program control. Therefore, 
PID program control is also called Ramp/Soak program control. The default of step No. 0 in this controller 
is Soak program control. The controller will control the temperature (PV) to reach the set point X and then 
keep the temperature at set point X. The period of execution time is time T which provided by step No. 0. 

 

Link Pattern Parameter : 

For example, when set 

  to 2, it indicates that pattern No. 2 will execute next after 

 


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9

the execution of pattern No. 0. If set to 

, it indicates the program will stop after executing the current 

pattern and the temperature will keep at the set point of the last step. 

 

Cycle Parameter : 

Additional execution cycle number. For example, when set 

  to 2, it indicates that pattern 

No. 4 should execute twice in addition. Include origin one time execution, total execute three times. 

 

Actual Step Parameter : 

Execution step number per pattern (can set to 0 ~ 7). For example, when set

 

 to 

2, it indicates that pattern No 7 will not execute other steps than step 0 to step2. 

 

Execution : 

When 

 is set to 

, the program will start to execute in order from the step 0 of start 

pattern. When 

 

is set to

 

, the program will stop and the control output is disabled. When 

  is set to

 

, the program will stop and the temperature at that time will be controlled at the set 

point before program stop. Select 

 

again, then the program will restart and execute from step 0 of 

start pattern. When 

  is set to

 

, the program will hold and the temperature at that time will be 

controlled at the set point before program hold. Select

 

 

again, then the program will follow the step 

before hold and start to execute through the rest of the time. 

 

Display : 

During PID program control, the SV default display is P-XX, P indicates the current execution pattern 

and XX indicates the current execution step. Press 

 

to change the display item. After select 

press 

 key, and then the temperature set point of the current execution step will display on SV 

display.After select 

, press

 

  key, and then the residual time of the current execution step will 

display on SV display. 

 

12  

PID Control

 

 

One group can be selected from any one of 4 groups PID parameters (P, I, D, IOF) for PID control. After AT, PID 

value and temperature setting will be stored in the selected one group. 

  ~

:

 

PIDn, n=0~4 from which 

0~3 correspond to each PID parameter. 

: n=4, auto PID parameter. Program will automatically select a most 

useful PID parameter based on current temperature setting. Displayed SV values correspond to 

~

 

~

:

 

Temperature setting corresponded to the selected PID parameter via user-defined or AT. 

 

Valve Control: 

When use valve control as output control, there are 2 Relay outputs for motor forward/reverse control, one (output 

1) for valve open the other (output 2) for valve close. The output volume is controlled by valve open/close and it 
can be set with feedback function enabled or disabled. When feedback is disabled, output 1 will keep output while 
valve fully opens and output 2 will keep output while valve fully closes. But if feedback is enabled, please follow the 
parameter setting for valve control as follows: 

 

: Time for valve from full close to full open. 
: Dead Band setting of valve. The value of current valve output minus previous one must be greater than 

Dead Band value; otherwise, valve will remain OFF. 

: Signal feedback setting, ON for enabling feedback and OFF for disabling feedback. 

When 

set to ” 1”, it means signal feedback function is activated and will come up selections as follows: 

a. 

: Upper/Lower limit of valve feedback by auto-tuning. 

must set to

for showing up this 

selection. 

b. 

: D/A value when value fully opens. Set 

to be ”1” for auto setting or ”0” for manual setting. 

c. 

: D/A value when value fully closes. Set 

to be ”1” for auto setting or “0” for manual setting. 

Note: If feedback function setting is with problem, program will see the setting as feedback disabled. 
 
 

 
 

 


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10

13  

RS-485 Communication

 

 

1. Supporting transmission speed: 2400, 4800, 9600, 19200, 38400bps 
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 

Explanation 

Measuring unit is 0.1, updated one time in 0.4 second 
The following reading value display indicates error occurs: 
8002H : Initial process (Temperature value is not got yet) 
8003H : Temperature sensor is not connected   

1000H  Process value (PV) 

8004H : Temperature sensor input error   

 

8006H : Cannot get temperature value, ADC input error 

1000H 

Process value (PV) 

8007H : Memory read/write error 

1001H  Set point (SV) 

Unit is 0.1, 

o

C or 

o

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: PID grogram control 

1006H Heating/Cooling control 

selection 

0: Heating, 1: Cooling, 2: Heating/Cooling, 3: Cooling/Heating 

1007H  1st group of Heating/Cooling 

control cycle 

0~99, 0:0.5 sec 

1008H  2nd group of Heating/Cooling 

control cycle 

0~99, 0:0.5 sec 

1009H  PB Proportional band 

0.1 ~ 999.9 

100AH  Ti Integral time 

0~9999 

100BH  Td Derivative time 

0~9999 

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   

100FH  The setting of Dead band 

when Dual Loop output control 
are used 

-999 ~ 9999 

1010H  Hysteresis setting value of the 

1st output group   

0 ~ 9999 

1011H  Hysteresis setting value of the 

2nd output group 

0 ~ 9999 

1012H  Output value read and write of 

Output 1 

Unit is 0.1%, write operation is valid under manual tuning mode only.   

1013H  Output value read and write of 

Output 2 

Unit is 0.1%, write operation is valid under manual tuning mode only. 

1014H  Upper-limit regulation of 

analog linear output 

1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output) 

1015H  Lower-limit regulation of 

analog linear output 

1 Unit = 2.8uA(Current Output) = 1.3mV(Linear Voltage Output) 

 


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11

1016H  Temperature regulation value  -999~+999, unit: 0.1 
1017H  Analog decimal setting 

0 ~ 3 

1018H  Time for valve from full open 

to full close 

0.1~999.9 

1019H  Dead Band setting of valve 

0~100%; unit: 0.1% 

101AH  Upper-limit of feedback 

signal set by valve 

0~1024 

101BH  Lower-limit of feedback 

signal set by valve 

0~1024 

101CH  PID parameter selection 

0~4 

101DH  SV value corresponded to 

PID value 

Only valid within available range, unit: 0.1 scale 

1020H  Alarm 1 type 

Please refer to the contents of the “Alarm Outputs” for detail 

1021H  Alarm 2 type 

Please refer to the contents of the “Alarm Outputs” for detail 

1022H  Alarm 3 type 

Please refer to the contents of the “Alarm Outputs” for detail 

1023H  System alarm setting 

0 : None (default), 1~3 : Set Alarm 1 to Alarm 3 

1024H  Upper-limit alarm 1 

Please refer to the contents of the “Alarm Outputs” for detail 

1025H  Lower-limit alarm 1 

Please refer to the contents of the “Alarm Outputs” for detail 

1026H  Upper-limit alarm 2 

Please refer to the contents of the “Alarm Outputs” for detail 

1027H  Lower-limit alarm 2 

Please refer to the contents of the “Alarm Outputs” for detail 

1028H  Upper-limit alarm 3 

Please refer to the contents of the “Alarm Outputs” for detail 

1029H  Lower-limit alarm 3 

Please refer to the contents of the “Alarm Outputs” for detail 

102AH  Read LED status 

b0 : Alm3, b1: Alm2, b2: F, b3: 

, b4: Alm1, b5: OUT2, b6: OUT1, b7: AT 

102BH  Read pushbutton status 

b0 : Set, b1 : Select, b2 : Up, b3 : Down. 0 is to push 

102CH  Setting lock status 

0 : Normal, 1 : All setting lock, 11 : Lock others than SV value 

102DH  CT read value 

Unit: 0.1A 

102FH  Software version 

V1.00 indicates 0x100 

1030H  Start pattern number 

0 ~ 7 

1040H~ 

1047H 

Actual step number setting 
inside the correspond pattern 

0 ~ 7 = N, indicate that this pattern is executed from step 0 to step N   

1050H~ 

1057H 

Cycle number for repeating 
the execution of the 
correspond pattern 

0 ~ 99 indicate that this pattern has been executed for 1 ~ 100 times 

1060H~ 

1067H 

Link pattern number setting of 
the correspond pattern 

0 ~ 8, 8 indicates the program end. 0~7 indicates the next execution pattern 
number after executing the current pattern 

2000H~ 

203FH 

Pattern 0~7 temperature set 
point setting 
Pattern 0 temperature is set to 
2000H~2007H 

-999 ~ 9999 

2080H~ 

20BFH 

Pattern 0~7 execution time 
setting 
Pattern 0 time is set to 
2080H~2087H 

Time 0 ~ 900 (1 minute per scale) 

6.    Address and Content of Bit Register: ( First bit of reading will put into LSB, Write data = FF00H for bit set, 

0000H for bit clear) 

 

0810H 

Communication write-in 
selection 

Communication write in disabled: 0 (default), Communication write in 
enabled: 1 

0811H 

Temperature unit display 
selection 

o

C / linear input (default) : 1 , 

o

F : 0 

0812H 

Decimal point position 
selection 

Except for the thermocouple B, S, R type, all the other thermocouple type 
are valid. (0 or 1) 

0813H  AT setting 

OFF: 0 (default), ON : 1 

0814H  Control RUN/STOP setting 

0 : STOP, 1 : RUN (default) 

0815H 

STOP setting for PID 
program control 

0: RUN (default), 1: STOP 

 


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12

0816H 

Temporarily STOP for PID 
program control 

0: RUN (default), 1: Temporarily STOP 

0817H  Valve feedback setting status  0: w/o feedback (default), 1: feedback function

 

0818H 

Auto-tuning valve feedback 
status 

0: Stop AT (default), 1: Start AT

 

7.  Communication Transmission Format : Command Code: 02: read N bits, 05: write 1 bits, 03: read N words, 06:     

write 1 words

 

 

14   

Panel Cutout and Terminals Identification

 

 

 

Panel Cutout (

dimensions are in millimeter and

 

Terminals Identification

DTB4824 

65.0 min.

(2.56)

4

0

.0

 m

in

.

(1

.5

8

)

44.8

(1.76)

2

2

.0

(0

.8

7

)

+0.6

-0

+0.02

-0

+

0

.6

-0 +

0

.0

2

-0

mm

(in)

   

DTB4824

1

4

3

2

5

6

AC 100~240V 

50/60 Hz 5VA

Tc

+

-

RTD

OUT 1

DATA-

DATA+

RS-485

7

9

8

10

11

12

V

!

+

+

-

-

OUT 2/

       ALM

V

+

-

IN

+

-

L

N

                     

 

DTB4848 
 

65.0 min.

(2.56)

4

5

.0

(1

.7

7

)

45.0

(1.77)

6

0

.0

 m

in

.

(2

.3

6

)

+0.6

-0

+0.02
-0

+

0

.6

-0 +

0

.0

2

-0

mm

(in)

 

DTB4848 
(EVENT & CT selection) 
 

DTB4848 
(NO EVENT & CT) 
 

1

4

3

2

5

Tc

+

-

RTD

7

6

9

8

10

14V

DC

DATA-

DATA+

RS-485

11

14

15

13

12

AC 100~240V 

50/60 Hz

5VA

3A

250Vac

ALM 2

ALM 1

COM

3A

250Vac

NO

OUT1

14V

or

4~20mA

or

0~10V

DC

+

-

COM

NO

COM

+

-

IN

OUT2/
ALM3

+

-

L

N

 
 
 

DTB4896 
 

 

DTB4896/DTB9696 
 

NO

COM

NC

5A

250Vac

1

4

3

2

5

7

6

9

8

10

11

14

15

13

12

16

19

20

18

17

AC 100~240V 

50/60 Hz

5VA

OUTPUT1

14V

DC

4~20mA

0~10V

NO

COM

NC

5A

250Vac

OUTPUT2/ALM3

14V

DC

ALM2

COM

or

or

Tc

+

RTD

DATA+

DATA-

RS-485

SG

Ev1

Ev2

CT

ALM1

COM

IN

+

+

-

+

- -

-

L

N

 

 


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13

DTB9696 
 

 

DTB9696RRV 
 

 

 

15  

External Dimensions 

 

  

Dimensions are in millimeter (inch)

 

DTB4824

 

 

DTB4848

 

48.0 mm

(1.89 in)

2

4

.0

 m

m

(0

.9

4

 in

)

3.4 mm

(0.13 in)

99.8 mm
(3.93 in)

2

1

.8

m

m

(0

.8

in

)

44.75 mm
(1.76 in)

2

2

.0

 m

m

(0

.8

in

)

44.8 mm

(1.76 in)

 

48.0 mm
(1.89 in)

4

8

.0

 m

m

(1

.8

in

)

9.5 mm
(0.37 in)

80.0 mm
(3.15 in)

4

4

.7

m

m

(1

.7

in

)

45.0 mm
(1.77 in)

+0.6

0

4

5

.0

 m

m

(1

.7

7

 in

)

+

0

.6

0

+0.02

0

+

0

.0

2

0

 

 

DTB4896

 

 

DTB9696

 

48.0 mm
(1.89 in)

12.8 mm
(0.50 in)

79.2 mm(3.12 in)

91.0

 mm(3.58

 in

)

95

.7

 m

m

(3.

7

7

 in)

98.2

 mm(3.

8

7 i

n

)

44.0 mm
(1.73 in)

44.5 mm
(1.75 in)

+0.6

0

91

.5

 m

m

(3

.6

0

 i

n

)

+0

.6

0

+0.02

+0

.0

2

0

0

 

96.0 mm
(3.78 in)

96.

0 mm

(3

.7

8 in

)

98.

0 mm

(3

.8

6 i

n

)

15.8 mm
(0.62 in)

79.2 mm
(3.12 in)

90

.8

 m

m

(3

.5

7 i

n

)

91.0 mm
(3.58 in)

+0.6

0

91

.0

 mm

(3

.5

8 in

)

+0

.6

0

+0.02

0

+0

.0

2

0

 

 

 

    

 


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14

16  

Mounting

 

   

 

Mounting Method

 

 

Mounting Bracket Installation

 

   

 

 

CT Wiring Method (if CT function is 

Step 1 : Insert the controller through the panel cutout. 
Step 2 : Insert the mounting bracket into the mounting groove 

at the top and bottom of the controller 

Step 3 : Push the mounting bracket forward until the bracket 

stops at panel wall. 

Step 4 : Insert and tighten screws on bracket to secure the 

controller in place. (The screw torque should be 
0.8kgf-cm to 1.5kgf-cm) 

DTB4824 Mounting Method:

 

   

 

DTB4848/4896/9696 Mounting Method:

 

1

     

3

2

 

06

.8

m

m

 M

ax

.

 

 

17  

Error Acknowledge and Display

 

Communication error code response description: 

Error status 102EH/4750H 

PV read back 1000H/4700H 

Error status 

0001H N/A 

PV 

unstable 

0002H 8002H 

Re-initial

No temperature at this time

0003H 

8003H 

Input sensor did not connect 

0004H 

8004H 

Input signal error 

0005H 

N/A 

Over input range 

0006H 8006H 

ADC 

fail 

0007H 

N/A 

EEPROM read/write error 

Display message: 

 

Power ON 

Normal display 

PV 

  DTB series, Firmware V1.50 

Present value 

SV 

  Output VR type with Event option 

Set value 

 

Sensor didn’t connect 

Input error 

PV 

  No 

Error 

SV 

  Connect 

Input 

 

EEPROM error 

Input over range 

PV 

  Error 

PV flash when over 

SV 

  EEPROM 

 

 


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15

Contact Information:

 

ASIA 
DELTA ELECTRONICS, INC. 
TAOYUAN Plant/ 

31-1, SHIEN PAN ROAD,   
KUEI SAN INDUSTRIAL ZONE 
TAOYUAN 333, TAIWAN 
TEL: 886-3-362-6301 
FAX: 886-3-362-7267 
 

NORTH/SOUTH AMERICA 
DELTA PRODUCTS CORPORATION 
Sales Office/ 

P.O. BOX 12173 
5101 DAVIS DRIVE 
RTP, NC 27709 U. S. A. 
TEL: 1-919-767-3813 
FAX: 1-919-767-3969 

 

EUROPE 
DELTRONICS (Netherlands) B.V. 
Sales Office/ 

DE WITBOGT 15 
NL-5652 AG EINDHOVEN 
The NETHERLANDS 
TEL: 31-40-259-2850 
FAX: 31-40-259-2851