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

Series Temperature Controller

Instruction Sheet

Thank you very much for choosing Delta DTD series temperature controller. Please read this instruction sheet

before using your DTD to ensure proper operation. Keep this instruction sheet handy for quick reference.

 Warning

DANGER! CAUTION! ELECTRIC SHOCK!

When the power is on, DO NOT touch the AC terminals in case

an electric shock may occur. Make sure the power is disconnected when you check the input power.

DTD is an OPEN-TYPE device. If it will cause serious injury to workers or damage on other equipments

when used in a dangerous environment, please make sure it is installed in an automatic safety protection

device.

1. Always use recommended solder-less terminals: Fork terminal with isolation (M3 screw, Max. width 7.2mm). Please be

sure to tighten them properly and make sure the wire is connected to the correct terminal.

2. Prevent dust or metallic debris from falling into the device and cause malfunctions. DO NOT

modify or uninstall DTD

series without being permitted. DO NOT

use empty terminals.

3. Keep away from high-voltage and high-frequency environment during installation in case of interference. Prevent using

the device in premises which contain:

(a) dust or corrosive gas; (b) high humidity and high radiation; (c) shock and vibration

4. The power has to be switched off when wiring or changing temperature sensor.

5. Make sure to use compensation wire which matches the thermocouple when extending or connecting the thermocouple

wire.

6. Use wires with resistance when extending or connecting the platinum resistance sensor.

7. Keep the wire as short as possible when wiring a sensor to the temperature controller. Separate the power cable and load

wire in order to prevent interference and induced noise.

8. DTD is an open-type device. Make sure to install it in an enclosure which prevents dust and humidity in case of an

electric shock.

9. Make sure the power cables and signal device are installed correctly before switching on the power; otherwise serious

damage may occur.

10. DO NOT

touch the terminals or repair the device when the power is on; otherwise an electric shock may occur.

11. Please wait for one minute after the power is switched off to allow the capacitor to discharge and DO NOT touch the

internal wiring within this period. Use dry cloth to clean the device. DO NOT use acid or alkaline liquid to clean the

device.

 Display, LED &

Pushbuttons

Present value/function

display (red 7-segment LED)

Set value

(green 7-segment LED)

Flashes when PID

auto-tuning (green LED)

OUT On when output (green LED)

ALM On when alarm (red LED)

Selecting modes

completing setup

Displaying functions

Left-shifting the digit

Up key

 Ordering Information

DTD

Series name

DTD: Delta D series temperature

controller

1 2

Panel size

(W × H)

4848: 1/16 DIN W48 × H48 mm

4896: 1/8 DIN W48 × H96 mm

R: Relay output SPST (250VAC, 5A)

V: Voltage pulse output 14V +10% ~

-20% (Max. 40mA)

Optional 0: None

 Specifications

Power input AC100 ~ 240V 50/60Hz

Input power range 85% ~ 110%, rated voltage

Power consumption 6VA Max.

Display 7-segment LED; PV in red, SV in green

Input temperature

sensor

Thermocouple: K, J, T, E, N, R, S, B, U, L,

Txk

Platinum resistance: Pt100, JPt100

Copper resistance: Cu50

Analog input Current: 0 ~ 20mA, 4 ~ 20mA Voltage: 0 ~ 5V, 0 ~ 10V, 0 ~ 70mV

Display scale

For temperature input: K2, J2, T2, Pt100-2, JPt100 and Cu50 can display to 0.1

degree; others display in 1degree as a unit.

Control method PID, PID programmable control, On/Off, manual output

Relay output: AC 250V, 5A, SPST

Control output type

Voltage pulse output: DC 14V, Max. output current 40mA

Sampling cycle 0.4 second (including analog input signal and sensor input signal)

Vibration resistance 10 ~ 55Hz 10m/s

3 axes 10mins

Shock resistance Max. 300m/ s

3 axes 6 directions, 3 times each

Ambient temperature

0°C ~ 50°C

Storage temperature

-20°C ~ +65°C

Operation altitude Less than 2,000m

Ambient humidity 35% ~ 85% RH (non-condensing)

 Operation Instructions on Keys!

h Switching Modes

DTD is in operation mode (the first level) when the power is switched on. Press once to switch to the

regulation mode (the second level), or press

for more than 3 seconds in operation mode to switch to the initial

setting mode (the third level). Press

once in other screens to return to the operation mode.

Switching Functions

Press in each mode to select functions. Press once to switch to the next function, or return to the first

function when press

in the last function.

Modifying Settings

Select the item to be set up by using and . Next, press . If the item to be set up is a value, the last

digit of the SV will flash. If you press

to select parameters, the SV will flash. Press to increase the value

of the digit or select parameters. When setting up the value, press

to left shift to the digit to be modified.

h Examples

1. DTD from STOP to RUN: Press once and select parameter . SV will display . Press and

will flash. Press to save the setting and will stop flashing.

2. Modifying SV from 80 to 120:

Press and display 0080 (the last digit in right hand side 0 will flash). Press

once and 8 will flash. Next, press 4 times and “2” in the display 0020 will flash. Press once and

the 100s digit 0 will flash. Press

once and ”1” in the display 0120 will flash. Press to complete and

save the setting.

 Input Settings!

h Setting up Input Type

When DTD is switched on, SV will display the type of the input sensor (default K1 = thermocouple type). Press

for more than 3 seconds in the operation mode and PV will display the parameter

. Press to select the

sensor types (see the table below) and press

to complete and save the setting. The screen will return to the

screen of operation mode.

If the setting is current input, a 249Ω resistor has to be connected to the current input terminals.

Setting up Input Unit

In the operation mode, press for more than 3 seconds and PV will display the parameter . Press

once to select the unit. If the input type is thermocouple or platinum resistance, the PV will display

. In this

case, press

to select the temperature unit (°C or °F). If the input type is an analog input, the PV will display

. In this case, you can set up the position of the decimal point for the analog input. Press to complete

and save the setting.

h Setting up Input Range

After you complete setting up the input unit, press

once to display the parameter . Use and

to set the maximum value for the temperature range. Press

again to display the parameter , and use

and to set the minimum value for the temperature range. The default range is the maximum range

measurable (see the table below) and both parameters cannot exceed this range. When PV exceeds the range, PV

will flash and DTD will stop its operation.

When in analog input, the temperature range also refers to the maximum and minimum input values. For example,

when 4 ~20mA input is adopted,

= 2,000, = 400. That is to say, PV = 1,200 refers to the input is

12mA and the unit is 0.01mA.

h Adjusting Input Inaccuracy

When there is the need to correct the measured input PV, press

once in the operation mode to enter the

regulation mode. Press

repeatedly until the parameter of input compensation value appears.

Modifying this parameter will make the PV = measured value + input compensation value. Press

again to

display the parameter of input gain

and make PV = measured value × (1 + input gain/1,000) + input

compensation value. Press

again and display the parameter of software filter (default = 2). Increase

this parameter to enhance the stability of the PV; however, this will result in slow reaction to the input value.

Input Sensor Type Display Temperature Range

4 ~ 20mA input

-999 ~ 9,999

0 ~ 20mA input

-999 ~ 9,999

0V ~ 10V input

-999 ~ 9,999

0V ~ 5V input

-999 ~ 9,999

0 ~ 70mV input

-999 ~ 9,999

Cu50 type

-50

C ~ 150

C (-90.0

F ~ 302.0

Pt100 type 2

-99.9

C ~ 600.0

C (-99.9

F ~ 999.9

Input Sensor Type Display Temperature Range

Pt100 type 1

-200

C ~ 600

C (-360

F ~ 1,112

JPt100 type

-20.0

C ~ 400.0

C (-36.0

F ~ 752.0

Thermocouple TXK type

-200

C ~ 800

C (-360

F ~ 1,472

Thermocouple U type

-200

C ~ 500

C (-360

F ~ 932

Thermocouple L type

-200

C ~ 850

C (-360

F ~ 1,562

Thermocouple B type

100

C ~ 1,800

C (180

F ~ 3,272

Thermocouple S type

C ~ 1,700

C (0

F ~ 3,092

Thermocouple R type

C ~ 1,700

C (0

F ~ 3,092

Thermocouple N type

-200

C ~ 1,300

C (-360

F ~ 2,372

Thermocouple E type

C ~ 600

C (0

F ~ 1,112

Thermocouple T type 2

-99.9

C ~ 400.0

C (-99.9

F ~ 752.0

Thermocouple T type 1

-200

C ~ 400

C (-360

F ~ 752

Thermocouple J type 2

-99.9

C ~ 999.9

C (-99.9

F ~ 999.9

Thermocouple J type 1

-200

C ~ 1,200

C (-360

F ~ 2,192

Thermocouple K type 2

-99.9

C ~ 999.9

C (-99.9

F ~ 999.9

Thermocouple K type 1

-200

C ~ 1,300

C (-360

F ~ 2,372

 Control Settings!

h Setting up Control Mode

In the operation mode, press for more than 3 seconds and PV will display the parameter . Press

for 4 times to display the parameter

. The default setting of this parameter is “On/Off control” . Use

to select PID control , PID programmable control or manual control . Press again

and display the parameter

for selecting the control method. You can select heading (default) or

cooling

. Press to return to the operation mode.

Setting up RUN and STOP

In the operation mode, press and display parameter . The default is RUN . Use to select

STOP

. Press to complete the setting and the output will be disabled.

Setting up On/Off Control Parameters

Press in the operation mode. If DTD is in On/Off heating mode, the PV will display ; if in On/Off cooling

mode, the PV will display

. Modify these parameters to set up the hysteresis of On/Off. The default setting is

0 (without hysteresis). When the output reaches SV, the control output will be disabled. When the input is bigger

(cooling) or smaller (heating) than the SV and hysteresis, the control output will be enabled. When the On/Off

hysteresis is not 0, the control output will be like the diagrams below.

Hysteresis

HtS

OFF

ON/OFF Control for Heating

Hysteresis

CtS

OFF

ON/OFF Control for Cooling

h Setting up PID Parameters

When in PID control mode, you have to first decide the On/Off cycle time for the control output, i.e. the control cycle.

Press

in the operation mode and PV will display . Press 5 times to display the parameters of

heating control cycle

or cooling control cycle . Set up the cycle depending on the reaction speed of

the control system. In principle, the faster the reaction, the shorter the cycle and more accurate the control. A short

control cycle indicates that there will be more times of On/Off. If you adopt relay output, the short cycle will shorten

the life span of the relay. Therefore, it is recommended that you adopt voltage output in the PID control mode. The

default setting of the control cycle is 20 seconds.

Parameters P, I and D can be set up manually or auto-tuned by DTD. Follow the steps below for the auto-tuning.

Press

in the operation mode and PV will display the parameter . In RUN state , set the

parameter to

and DTD will perform an auto-tuning. The AT indicator will flash and after the setup is

completed, the AT indicator will be off. The PID parameters will be written in automatically and saved.

To set up the parameters manually, enter the regulation mode and select the parameter

. Press once

to display the parameter of proportion band

, indicating the range where P control is enabled. See the

diagrams in the next page.

Delta Electronics DTD4848

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