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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
!
!
PV
Present value/function
display (red 7-segment LED)
SV
Set value
(green 7-segment LED)
AT
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
0
1
2
3
4
5
Series name
DTD: Delta D series temperature
controller
1 2
3
4
Panel size
(W × H)
4848: 1/16 DIN W48 × H48 mm
4896: 1/8 DIN W48 × H96 mm
5
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
2
3 axes 10mins
Shock resistance Max. 300m/ s
2
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.
h
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.
h
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.
h
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
o
C ~ 150
o
C (-90.0
o
F ~ 302.0
o
F)
Pt100 type 2
-99.9
o
C ~ 600.0
o
C (-99.9
o
F ~ 999.9
o
F)
Input Sensor Type Display Temperature Range
Pt100 type 1
-200
o
C ~ 600
o
C (-360
o
F ~ 1,112
o
F)
JPt100 type
-20.0
o
C ~ 400.0
o
C (-36.0
o
F ~ 752.0
o
F)
Thermocouple TXK type
-200
o
C ~ 800
o
C (-360
o
F ~ 1,472
o
F)
Thermocouple U type
-200
o
C ~ 500
o
C (-360
o
F ~ 932
o
F)
Thermocouple L type
-200
o
C ~ 850
o
C (-360
o
F ~ 1,562
o
F)
Thermocouple B type
100
o
C ~ 1,800
o
C (180
o
F ~ 3,272
o
F)
Thermocouple S type
0
o
C ~ 1,700
o
C (0
o
F ~ 3,092
o
F)
Thermocouple R type
0
o
C ~ 1,700
o
C (0
o
F ~ 3,092
o
F)
Thermocouple N type
-200
o
C ~ 1,300
o
C (-360
o
F ~ 2,372
o
F)
Thermocouple E type
0
o
C ~ 600
o
C (0
o
F ~ 1,112
o
F)
Thermocouple T type 2
-99.9
o
C ~ 400.0
o
C (-99.9
o
F ~ 752.0
o
F)
Thermocouple T type 1
-200
o
C ~ 400
o
C (-360
o
F ~ 752
o
F)
Thermocouple J type 2
-99.9
o
C ~ 999.9
o
C (-99.9
o
F ~ 999.9
o
F)
Thermocouple J type 1
-200
o
C ~ 1,200
o
C (-360
o
F ~ 2,192
o
F)
Thermocouple K type 2
-99.9
o
C ~ 999.9
o
C (-99.9
o
F ~ 999.9
o
F)
Thermocouple K type 1
-200
o
C ~ 1,300
o
C (-360
o
F ~ 2,372
o
F)
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.
h
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.
h
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
ON/OFF Control for Heating
SV
Hysteresis
CtS
OFF
ON
ON
ON/OFF Control for Cooling
SV
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.