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Ordering Information
DTA
Series
DTA : Delta A Series Temperature Controller
4848 : 1/16 DIN W48 × H48mm
9648: 1/8 DIN W96 x H48
Panel Size
4896 : 1/8 DIN W48 × H96mm
7272 : W72 × H72mm
(W × H)
9696 : 1/4 DIN W96 × H96mm
R : Relay output, SPDT (SPST: 1/16 DIN size), 250VAC, 5A
Output Selection
V : Voltage Pulse output, 14V+10% ~ -20%(Max. 40mA)
C : Current output, 4~20mA
Communication
0 : No interface
(Optional)
1 : RS-485
Current Transformer
None : No CT function (Current transformer is not provided)
(CT) Function
T : Current transformer is provided (only DTA7272 series
(Optional)
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.
Address
Content
Explanation
Measuring unit is 0.1, updated one
4700H (R)
Process value (PV)
time in 0.5 second
o
o
4701H
Set point (SV)
Unit is 0.1,
C or
F
4702H
Upper-limit alarm 1
4703H
Lower-limit alarm 1
4704H
Upper-limit alarm 2
4705H
Lower-limit alarm 2
The data content should not be
4706H
Upper-limit of temperature range
higher than the temperature range
The data content should not be
4707H
Lower-limit of temperature range
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
Please refer to the contents of the
4710H
Input temperature sensor type
"Temperature Sensor Type and
Temperature Range" for detail
0: PID (default), 1: ON/OFF,
4711H
Control method
2: manual tuning
4712H
Heating/Cooling control cycle
1 to 99 second
Proportional control offset error
4713H
0% to 100%
value
4714H
Temperature regulation value
-999~999, unit: 0.1
Please refer to the contents of the
4715H
Alarm 1 type
"Alarm Outputs" for detail
Please refer to the contents of the
4716H
Alarm 2 type
"Alarm Outputs" for detail
o
o
4717H
Temperature unit display selection
C
F
: 1 (default),
: 0
4718H
Heating/Cooling control Selection
Heating: 0 (default), Cooling: 1
4719H
Control Run/Stop setting
Run: 1 (default), Stop:0
Communication write in disabled: 0
471AH
Communication write-in selection
(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
Initial status (Temperature is not
Code 2
stable)
Temperature sensor is not
Code 3
472BH (R)
connected
Code 4
Temperature sensor input error
Measured temperature value
Code 5
exceeds the temperature range
Code 6
No Int. error
Code 7
EEPROM Error
4733H
CT monitor value
Unit is 0.1A
Note: R means "read only" value
Alarm Outputs
There are up to two groups of alarm outputs and each group allows ten 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
Alarm Type
Alarm Output Operation
Value
0
Alarm function disabled
Output OFF
Deviation upper- and lower-limit:
ON
This alarm output operates when PV value is
1
OFF
higher than the setting value SV+(AL-H) or lower
SV-(AL-L)
SV
than the setting value SV-(AL-L).
Deviation upper-limit:
2
This alarm output operates when PV value is
higher than the setting value SV+(AL-H).
Deviation lower-limit:
3
This alarm output operates when PV value is
lower than the setting value SV-(AL-L).
Reverse deviation upper- and lower-limit:
This alarm output operates when PV value is in
4
the range of the setting value SV+(AL-H) and SV-
(AL-L).
Absolute value upper- and lower-limit:
This alarm output operates when PV value is
5
higher than the setting value AL-H or lower than
setting value AL-L.
Absolute value upper-limit:
6
This alarm output operates when PV value is
higher than the setting value AL-H.
Absolute value lower-limit:
7
This alarm output operates when PV value is
lower than the setting value AL-L.
Deviation upper- and lower-limit with standby
sequence:
This alarm output operates when PV value
8
reaches set value (SV value) and the value is
higher than the setting value SV+(AL-H) or lower
than the setting value SV-(AL-L).
Deviation upper-limit with standby sequence:
This alarm output operates when PV value
9
reaches set value (SV value) and the reached
value is higher than the setting value SV+(AL-H).
Deviation lower-limit with standby sequence:
This alarm output operates when PV value
10
reaches the set value (SV value) and the reached
value is lower than the setting value SV-(AL-L).
Hysteresis upper limit alarm output: this alarm
output operates if PV value is higher than the
11
setting value SV+(AL-H). This alarm output is
OFF when PV value is lower than the setting
value SV+(AL-L).
Hysteresis lower limit alarm output: this alarm
output operates if PV value is lower than the
12
setting value SV-(AL-H). This alarm output is
OFF when PV value is higher than the setting
value SV-(AL-L).
CT alarm output:
This alarm operates when the current measured
13
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).
Note: AL-H and AL-L include AL1H, AL2H and AL1L, AL2L.
With standby sequence: It means that the alarm output would be temporarily disabled
until the PV value reaches the set value. Then, the alarm output will operate.
Communication Protocol
Command code to read N words: 03H. The maximum value of N is 3.
For example, in order to read two words from controller 01 (address 01H) at starting data
address 4700H, the command in ASCII mode is:
ASCII mode:
Command message:
Response message:
STX
':'
ADR1
'0'
ADR1
ADR0
ADR0
'1'
CMD1
'0'
CMD1
CMD0
CMD0
'3'
'4'
Number of data
(count by byte)
'7'
Starting data address
'0'
'0'
Content of start address
4700H
'0'
Number of data (count
'0'
by word)
'0'
'2'
Content of start address
LRC CHK 1
'B'
4701H
LRC CHK 0
'3'
END 1
CR
LRC CHK 1
END 0
LF
LRC CHK 0
END 1
END 0
LRC check:
LRC check is the added sum from "Address" to "Data content". For example, 01H + 03H + 47H
+ 00H + 00H + 02H = 4DH, then take the complementary of 2, B3H.
Command code to write 1 word: 06H
For example, in order to write 1000 (03E8H) in controller 01 (comm. address 01H) at the
starting data address 4701H, the command in ASCII mode is:
ASCII mode:
Command message:
Response message:
STX
':'
ADR1
'0'
ADR0
'1'
CMD1
'0'
CMD0
'6'
'4'
'7'
Starting data address
Starting data address
'0'
'1'
Data content
'0'
Data content
SV+(AL-H)
'3'
'E'
'8'
ON
LRC CHK 1
'C'
OFF
LRC CHK 0
'6'
SV
SV+(AL-H)
END 1
CR
ON
END 0
LF
OFF
SV
SV-(AL-L)
Panel Cutout & External Dimensions
1. Panel wall thickness should range from 1mm to 8mm
ON
OFF
2. Provide at least 90 mm clearance around the controller for proper ventilation.
SV-(AL-L)
SV
SV+(AL-H)
(Dimensions are in millimeter and (inch))
DTA 4848
ON
OFF
AL-L
AL-H
ON
OFF
AL-H
ON
OFF
AL-L
ON
OFF
SV-(AL-L)
SV+(AL-H)
SV
DTA 4896
ON
OFF
SV
SV+(AL-H)
ON
OFF
SV-(AL-L)
SV
ON
OFF
SV
AL-L
AL-H
DTA9648
ON
OFF
AL-H AL-L SV
ON
OFF
AL-L
SV
AL-H
DTA7272
STX
':'
'0'
'1'
'0'
'3'
'0'
'4'
'0'
DTA9696
'1'
'9'
'0'
'0'
'0'
'0'
'0'
'6'
'7'
CR
LF
Terminals Identification
DTA4848
-
STX
':'
5A 250Vac
14Vdc
DC 4~20mA
ADR1
'0'
ADR0
'1'
+
CMD1
'0'
CMD0
'6'
RTD
'4'
+
'7'
Tc
or
'0'
-
'1'
'0'
'3'
'E'
'8'
LRC CHK 1
'C'
LRC CHK 0
'6'
END 1
CR
END 0
LF
DTA4896/DTA9648/DTA9696
Tc
DTA7272
Tc
Mounting
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 and push the mounting bracket forward until the bracket stops at
panel wall.
Step-3. Insert and tighten screws on bracket to secure the controller in place.
(The screw torque should be 0.8kgf-cm to 1.5kgf-cm)
Mounting Bracket Installation
1.
CT Wiring Method (if CT function is selected)
L
1
6
11
AC 100~240V
N
50~60Hz /5VA
2
7
12
ALM2
3
8
13
DATA-
ALM1
3A 250Vac
4
9
14
RS-485
5
10
15
DATA+
COM
DATA+
L
1
11
AC 100~240V
RS-485
N
50~60Hz /5VA
2
12
DATA-
3
13
COM
4
14
3A 250Vac
5
15
ALM2
6
16
COM
3A 250Vac
7
17
ALM1
NC
8
18
5A 250Vac
RTD
NO
-
+
9
19
or
DC 4~20mA
14Vdc
-
20
10
+
COM
DATA+
L
1
9
AC 100~240V
RS-485
N
50~60Hz /5VA
2
10
DATA-
COM
3
11
CT
4
12
3A 250Vac
ALM2
5
13
ALM1
NC
6
14
RTD
OUTPUT
+
NO
7
15
5A 250Vac
or
-
8
16
COM
3
2
1
2.
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