Delta Electronics DTV instruction sheet PID Programmable Control

Mode	Alarm Type	Alarm Output Operation
8	Standby upper/lower limit alarm: Alarm will be enabled when the PV reaches SV and	ON
		OFF
	exceeds SV + AL-H or falls below SV – AL-L.		AL-L	SV	AL-H
9	Upper limit standby alarm: Alarm will be enabled when the PV reaches SV and exceeds	ON
		OFF
	SV + AL-H.			SV	AL-H
10	Lower limit standby alarm: Alarm will be enabled when the PV reaches SV and falls below	ON
		OFF
	SV – AL-L.		AL-L	SV
11	Upper limit hysteresis alarm: Alarm will be enabled when the PV exceeds SV + AL-H.	ON
		OFF
	Alarm will be disabled when the PV falls below SV + AL-L.			AL-L	AL-H
12	Lower limit hysteresis alarm: Alarm will be enabled when the PV falls below SV – AL-H.	ON
		OFF
	Alarm will be disabled when the PV exceeds SV – AL-L.		AL-H	AL-L

14Programmable STOP: Alarm will be enabled when the program is in STOP status.

15Programmable RAMP UP: Alarm will be enabled when the program is in RAMP UP status.

16Programmable RAMP DOWN: Alarm will be enabled when the program is in RAMP DOWN status.

17Programmable SOAK: Alarm will be enabled when the program is in SOAK status.

18Programmable RUN: Alarm will be enabled when the program is in RUN status.

Note: AL-H and AL-L include AL1H, AL2H and AL1L, AL2L. There is no mode 13 (reserved for CT function).

PID Programmable Control

Functions and Parameter Setting:

The PID programmable control includes 8 patterns (Pattern 0 ~ 7). Each pattern contains 8 steps (Step 0 ~ 7) and parameters: link pattern, cycle and the number of steps.

Start Pattern : This parameter can be set in the operation mode. The user can set up which pattern is the start pattern for the programmable control. This function is only available when the program is in STOP status.

Step: Includes the settings of the two parameters, set point X and execution time T, indicating that the set point (SV) has to rise to temperature X after the period of execution time T. If the result of the set point X is the same as that of the previous setting, the process is called Soak; otherwise, it is called Ramp. Therefore, the programmable control is also known as Ramp/Soak control.

The default setting of the first step program is Soak control. The temperature will first rise to the set point X and remain at X. The total execution time is T.

Link Pattern: For example, if the parameter is set as 2, it refers to the execution of pattern 2 will follow the

execution of pattern 0. If the link pattern is set as , it refers to the program will end after the execution of the pattern is completed and the temperature will remain at the SV for the last step.

Cycle: The additional number of cycles for a pattern. For example, if the parameter is set as 2, it refers to pattern 4 has to execute twice additionally, totaling the executions to 3 times including the original one.

The Number of Steps: The number of steps in each pattern (range: 0 ~ 7). For example, if the parameter is set as 2, it refers to pattern 7 will execute step 0 ~ step 2 and other steps will not be executed.

The Execution:

1.When the parameter is set as , the program will start its execution from step 0 of the start pattern.

2.When the parameter is set as , the program will stop and the control output will be disabled.

3.When the parameter is set as , the program will stop and the temperature will stop at the SV before

the program stops. When you select again, the program will execute again from step 0 of the start pattern.

4.When the parameter is set as , the program will stop and the temperature will stop at the SV before

the program stops. When you select again, the program will resume the step before the program stops and execute by the remaining time.

Display:

In PID programmable control, some SVs are re-set as P-XX. P refers to the current pattern and XX refers to the

current step. Press to modify the display.

Select and press . SV will display the target temperature for the current step.

Select and press . SV will display the remaining time of the current step.

PID Control

In PID control, you can select any one of the 4 groups of PID parameter (P, I, D, IOF). After auto-tuning, the PID value and the temperature SV will be stored into the selected PID parameter.

~ : PIDn, n = 0 ~ 4. 0 ~ 3 are the corresponding selected PID parameter. refers to

auto-selected PID and the program will automatically select a most useful PID parameter based on the current SV. SV

displays will be ~ corresponding to n = 0 ~ 3.

~ : The SV for the selected PID parameter, can be set by the user or auto-generated by auto-tuning.

Valve Control

Heaters and coolers can be used to control the temperature and the openness of the valve in order to control the flow of the medium. Current and voltage can control the openness of the valve; however, the most direct and economic way to control the openness of the valve is the relay. To control the valve by voltage and current, you can use the DTB series analog output controller. If you tend to use relay for the control output, you have to choose the valve function in DTV series. The two control outputs are relay output for the forward/reverse running of the motor to drive the opening and closing of the valve. Control output1 controls the opening of the valve and control output 2 controls the closing of the valve in order to adjust the position of the valve. In order to detect the position of the valve, DTV is able to receive “feedback signal” and “no feedback signal”. When there is no feedback signal and the valve is fully open, control output 1 will output continuously. If at the moment the valve is fully closed, control output 2 will output continuously. If the valve you use is with feedback output, you can connect the output of the valve to the feedback part of DTV and set

to On to precisely control the openness of the valve. If there is no feedback signal or the feedback signal is incorrect, and the pre-set openness of the valve is not reached after twice as long as the time set in the parameter

, the program will automatically switch back to the no feedback state. To ensure the correctness of the valve control, please make sure that you have set up the parameters below:

: Time required from the valve fully closed to fully open. This parameter has to be correct when the valve is without feedback signal; otherwise, the accuracy for the temperature control will be affected. The PID control will correspond to the openness of the valve according to the setting of this parameter.

: DeadBand value of the valve. The parameter is to prevent frequent movement of the valve. For example, assume the DeadBand is 4%, PID control will correspond to the openness of the valve within 4% and the valve will not move within the range unless the value is accumulated and exceeds 4%. If the Deadband value is too small and the valve is set to have feedback signals, moving back and forth of the valve will shorten the life of the valve motor.

: With or without feedback signals.

When is set as “On”, it refers to “with feedback signals” and the following parameters will be displayed.

a): Automatically adjusting the upper/lower limit of the valve feedback. This parameter will only be displayed

when is set as . When this parameter is set as On, the relay will enable the forward and reverse running of the motor in order to calculate the time needed from the valve fully closed to fully open and the feedback signal of fully closed and open. The feedback signal is the hardware D/A value of the valve control, which is for the calculation of the valve controller.

b): Upper limit of the valve signal. Set as “On”, can be set automatically or manually.

c): Lower limit of the valve signal. Set as ”On”, can be set automatically or manually.

Auto/Manual Mode Switch

A/M indicator On refers to manual mode; A/M indicator Off refers to auto mode. Besides On/Off, PID, programmable and manual controls, the valve control is also able to forcibly switch to manual control (fixing the openness of the

valve, unit: % from valve fully closed to fully open) when in PID control mode. You simply need to press in PID

control mode to switch to manual mode and A/M indicator will be On. Press again to return to PID control and A/M indicator will be Off.

Upper/Lower Limits of Valve Openness

Assume we would like the maximum openness of the valve to be 80% and the minimum to be 20%, set the parameter

as 80 and as 20, and the valve openness of PID control, programmable control and manual control will fall within this range.

RS-485 Communication

1.Supports transmission speed 2,400bps, 4,800bps, 9,600bps, 19,200bps and 38,400bps; does not support communication format 7, N, 1/8, E, 2/8, O, 2. Communication protocol: Modbus (ASCII or RTU). Function: 03H (able to read max. 8 words in the register), 06H (able to write 1 word into the register), 01H (able to read max. 16 bits of data), 05H (able to write 1 bit into the register).

2.Address and content of the data register.

Address	Content		Explanation
		Unit: 0.1 degree, updated every 0.4 second.
		The read values below indicate the occurrence of errors:
		8002H: temperature not acquired yet
1000H	Present temperature value (PV)	8003H: temperature sensor not connected
		8004H: wrong sensor type
		8006H: unable to acquire temperature, ADC input error
		8007H: unable to read/write the memory
1001H	Set point (SV)	Unit: 0.1 degree
1002H	Upper limit of temperature range	The content shall not be bigger than the range.
1003H	Lower limit of temperature range	The content shall not be smaller than the range.
1004H	Input sensor type	See “Types of Temperature Sensors and Temperature Range" table.
1005H	Control method	0: PID; 1: On/Off; 2: manual control; 3: PID programmable control
1006H	Selecting heating/cooling control	0: heating; 1: cooling
1009H	Proportion band value	0.1 ~ 999.9
100AH	Ti value	0	~ 9,999
100BH	Td value	0	~ 9,999
100CH	Default integration value	0	~ 100%, unit: 0.1%
100DH	Offset compensation value for	0	~ 100%, unit: 0.1%
	proportional control (when Ti = 0)
1010H	SV of output hysteresis	0	~ 9,999
1012H	Read/write of output percentage	Unit: 0.1%, only applicable in manual control mode
1014H	Upper limit regulation for analog linear	1 scale = 2.8μA = 1.3mV
	output
1015H	Lower limit regulation for analog linear	1 scale = 2.8μA = 1.3mV
	output
1016H	Temperature offset regulation value	-99.9 ~ +99.9, unit: 0.1
1017H	Analog decimal point setting	0	~ 3
1018H	Time from valve fully closed to fully open	0.1 ~ 999.9
1019H	DeadBand setting of valve	0	~ 100%, unit: 0.1%
101AH	Upper limit for valve feedback signal	0	~ 1,024
101BH	Lower limit for valve feedback signal	0	~ 1,024
101CH	PID group setting	0	~ 4
101DH	SV for the corresponding PID setting	In valid range. Unit: 0.1
101EH	Upper limit for control output	Lower limit for control output ~ 100%, unit: 0.1%
101FH	Lower limit for control output	0	~ Upper limit for control output, unit: 0.1%
1020H	Output mode for alarm 1	See “Alarm Output” section.
1021H	Output mode for alarm 2	See “Alarm Output” section.
1023H	System alarm setting	0: None (default); 1 ~ 2: Set alarm 1 ~ alarm 2
1024H	Upper limit for alarm 1	See “Alarm Output” section.
1025H	Lower limit for alarm 1	See “Alarm Output” section.
1026H	Upper limit for alarm 2	See “Alarm Output” section.
1027H	Lower limit for alarm 2	See “Alarm Output” section.
102AH	Read/write LED status	b0: °F; b1: °C; b2: ALM2; b3: x; b4: OUT1; b5: OUT2; b6: AT; b7: ALM1
102BH	Read/write key status	b0: Set; b1: Select; b2: Up; b3: Down; 0 refers to push.
102CH	Panel lock status	0: normal; 1: lock all; 11: SV adjustable; 111: SV adjustable, A/M
		available
102FH	Software version	V1.00 refers to 0x100
1030H	No. of start pattern	0	~ 7
1040H ~	Number of steps in a pattern	0	~ 7 = N refers to the pattern will be executed from step 0 to step N.
1047H
1050H ~	Additional number of cycles for a pattern	0	~ 99 refers to the pattern will be executed for 1 ~ 100 times.
1057H
1060H ~	No. of the link pattern for the current	0	~ 8. 8 refers to end of the program; 0 ~ 7 refers to the next pattern No.
1067H	pattern	following the current pattern.
2000H ~	SV temperature for pattern0 ~ 7	-999 ~ 9,999
203FH	SV for pattern 0 is set in 2000H ~ 2007H
2080H ~	Execution time for pattern 0 ~ 7
	Time for pattern 0 is set in 2080H ~	0	~ 900 (Every scale = 1 minute)
20BFH
	2087H

3.Address and content of the bit register (read bits are stored starting from LAB and written data is FF00H, set the bit as 1. 0000H sets the bit data as 0.)

0810H	Selecting communication write-in	Communication write-in forbidden: 0 (default), allowed: 1
0811H	Selecting temperature unit	0: °F; 1: °C/linear input (default)
0812H	Position of the decimal point	0 or 1. Available for all modes except for thermocouple type B, S, R.
0813H	Read/write auto-tuning (AT)	0: AT stops (default); 1: AT starts
0814H	RUN/STOP of the control	0: stop; 1: run (default)
0815H	Programmable control RUN/STOP	0: run (default); 1: stop
0816H	Programmable control RUN/PAUSE	0: run (default); 1: pause
0817H	Read/write valve feedback	0: without feedback (default); 1: with feedback
0818H	Read/write AT of valve feedback	0: AT stops (default); 1: AT starts

4. Communication transmission format: command 01: read bit, 05: write bit, 03: read word, 06: write word.

ASCII Mode

Read Command			Read Response Message			Write Command			Write Response Message
Start word	’：’	’：’	Start word	’：’	’：’	Start word	’：’	’：’	Start word	’：’	’：’
Machine address 1	‘0’	‘0’	Machine address 1	‘0’	‘0’	Machine address 1	‘0’	‘0’	Machine address 1	‘0’	‘0’
Machine address 0	‘1’	‘1’	Machine address 0	‘1’	‘1’	Machine address 0	‘1’	‘1’	Machine address 0	‘1’	‘1’
Command 1	‘0’	‘0’	Command 1	‘0’	‘0’	Command 1	‘0’	‘0’	Command 1	‘0’	‘0’
Command 0	‘3’	‘1’	Command 0	‘3’	‘1’	Command 0	‘6’	‘5’	Command 0	‘6’	‘5’
	‘1’	‘0’	Length of response	‘0’	‘0’		‘1’	‘0’		‘1’	‘0’
Read start address	‘0’	‘8’	data (byte)	‘4’	‘2’	Write data address	‘0’	‘8’	Write data address	‘0’	‘8’
of data/bit	‘0’	‘1’	Data content in	‘0’	‘1’		‘0’	‘1’		‘0’	‘1’
	‘0’	‘0’		‘1’	‘7’		‘1’	‘0’		‘1’	‘0’
Read length of	‘0’	‘0’	1000H/081xH	‘F’	‘0’		‘0’	‘F’		‘0’	‘F’
	‘0’	‘0’		‘4’	‘1’	Write data content	‘3’	‘F’	Write data content	‘3’	‘F’
data/bit (word/bit)	‘0’	‘0’	Data content in	‘0’			‘E’	‘0’		‘E’	‘0’
	‘2’	‘9’		‘0’			‘8’	‘0’		‘8’	‘0’
LRC1 check	‘E’	‘D’	1001H	‘0’		LRC1	‘F’	‘E’	LRC1	‘F’	‘E’
LRC0 check	‘A’	‘C’		‘0’		LRC 0	‘D’	‘3’	LRC 0	‘D’	‘3’
End word 1	CR	CR	LRC1 check	‘0’	‘E’	End word 1	CR	CR	End word 1	CR	CR
End word 0	LF	LF	LRC0 check	‘3’	‘3’	End word 0	LF	LF	End word 0	LF	LF
			End word 1	CR	CR
			End word 0	LF	LF

LRC check: Sum up from “machine address” to “data content”, e.g. 01H + 03H + 10H + 00H + 00H + 02H = 16H. Obtain 2’s complement EA.

RTU Mode

Read Command

Read Response Message

Write Command

Write Response Message

Machine address

01H

01H

Machine address

01H

01H

Machine address

01H

01H

Machine address

01H

01H

Command

03H

01H

Command

03H

01H

Command

06H

05H

Command

06H

05H

Read start

10H

08H

Length of response

04H

02H

Write data

10H

08H

Write data

10H

08H

address of data

00H

10H

data (byte)

address

01H

10H

address

01H

10H

Read length of

00H

00H

Data content 1

01H

17H

Write data

03H

FFH

Write data

03H

FFH

data (bit/word)

02H

09H

F4H

01H

content

20H

00H

content

20H

00H

CRC low byte

C0H

BBH

Data content 2

03H

CRC low byte

DDH

8FH

CRC low byte

DDH

8FH

CRC high byte

CBH

A9H

20H

CRC high byte

E2H

9FH

CRC high byte

E2H

9FH

CRC low byte

BBH

77H

CRC high byte

15H

88H

CRC (Cyclical Redundancy Check) is obtained by the following steps.

1.Load in a 16-bit register FFFFH as the CRC register.

2.Do an exclusive OR operation of the first byte of the data and low byte of CRC register, and place the operation result back to the CRC register.

3.Right shift the bits in the CRC register and fill the high bits with “0”. Check the removed lowest bit.

4.If the removed lowest bit is “0”, repeat step 3. Otherwise, do an exclusive OR operation of the CRC register and the value A001H and place the operation result back to the CRC register.

5.Repeat step 3 and 4 until the 8 bits (1 byte) are all right shifted.

6.Repeat step 2 and 5 and calcualte all the bits to obtain CRC check.

Please be aware of the high/low byte transmission order in the CRC register.

How to Mount How to Install Mounting Bracket

1.Insert DTV into the panel cutout

2.Insert the mounting bracket into the mounting groove at the top and bottom of DTV.

3.Push the mounting bracket forward until the bracket stops at the panel wall.

4.Tighten the screw.

Dimensions

DTV4896 DTV9696

Panel Cutout						Terminals
DTV4896/DTV9696						DTV4896R/DTV9696R
48*96	60.0 min.			96*96	110.0 min.
120.0 min.		+0.6		120.0 min.		+0.6
		91.50
						910
		+0.6			+0.6
		44.5	0
					91	0
How to Set up Current Input
For normal input (default)						Current input (4 ~ 20mA, 0 ~ 20mA)
					JU MPER	J UMPER

JP1	PIN HEADER	JP1
		PIN HEADER
DEFAULT SETTING
		The content of this instruction sheet may be revised without prior notice. Please consult our distributors or
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