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Series 4V/8V Valve Temperature Controller

Instruction Sheet

Thanks you very much for choosing Love 4V/8V series valve temperature controller. Please read this instruction sheet

before using your 4V/8V to ensure proper operation. Keep this instruction handy for quick reference.

1 Precaution

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.

Love 4V/8V 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 malfunction. DO NOT modify or uninstall

4V/8V 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 DTV 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. 4V/8V 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. DO NOT touch the

internal wiring within this period.

12. DO use dry cloth and DO NOT use acid or alkaline liquid to clean the device.

2 Display, LED & Pushbuttons

PV: Present value

SV: Set value

%: Output percentage

AT: Auto-tuning indicator

A/M: Manual control indicator

OUT1/OUT2: Output indicator

ALM1/ALM2: Alarm output indicator

Manual/auto mode switch key

Selection/setup key

Switching page key

Left-shifting the digit

Adjusting numbers

3 Specifications

Power input AC100 ~ 240V, 50/60Hz

Input power range 85% ~ 110%, rated voltage

Power consumption Less than 5VA

Display

2-line, 7-segment LED, 4bits and 2 bits of valve openness display

PV in red, SV and valve openness in green.

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

Platinum resistance: Pt100, JPt100

Input temperature sensor

Analog input: 0 ~ 5V, 0 ~ 10V, 0 ~ 20mA, 4 ~ 20mA, 0 ~ 50mA

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

Control output type Relay output: SPST, Max. load 250V, 5A resistive load

Display scale 1 digit after the decimal point, or no decimal point

Sampling cycle Analog input: 0.15 sec; thermocouple/platinum resistance: 0.4 sec

Vibration resistance 10 ~ 55Hz 10m/s

3 axes 10 min.

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% to 80% RH (non-condensing)

4 Setting up Parameters

Switching Modes: 4V/8V is in the operation mode when the power is switched on, displaying PV and SV. Press

for more than 3 seconds to enter the initial setting mode. Press

for less than 3 seconds in the operation mode to

enter the regulation mode. Press

once in the regulation or initial setting mode to return to the operation mode.

Selecting parameters: In the operation, regulation or initial setting mode, press

to select parameters for setup.

Setting up number parameters: Find the parameters to be set up or modified. Use

to modify the settings.

Press

to move to the desired digit to be modified and the digit will flash. Press to complete and save the

setting.

Setting up non-number parameters: Find the parameter to be set up or modified and use

to modify the

setting. The parameter will flash at this time. Press

to complete and save the setting.

Regulation Mode Operation Mode Initial Setting Mode

Auto-tuning

(Set up when in PID control and RUN)

Press

Use to set up SV

Press

Set up input type

Press

Select the PID group (0 ~ 4)

(4 groups of PID are available in PID

control. n = 4: PID is auto-selected.

See the next table.)

Press

Control loop RUN/STOP

Press

Set up temperature unit

(Not

displayed when in analog input

mode)

Press

PD control offset

Press

Start setting up patterns

(Set up when in PID programmable

control mode)

Press

Upper limit for the

temperature range

Press

Heating hysteresis setting

(Set up when in On/Off control)

Press

Set up the position of decimal

point

(Not for

thermocouple B, R, S type)

Press

Lower limit for the

temperature range

Press

Cooling hysteresis setting

(Set up when in On/Off control)

Press

Upper limit for alarm 1

(Adjustable when ALA1 is enabled)

Press

Select control mode

(Enter step editing when PID

programmable control is selected.

See the next table)

Press

/ Heating/cooling control

cycle

Press

Lower limit for alarm 1

(Adjustable when ALA1 is enabled)

Press

Select heating or cooling

Press

Switch for valve feedback

setting

Press

Upper limit for alarm 2

(Adjustable when ALA2 is enabled)

Press

Set up alarm mode 1

Press

Auto adjusting feedback value

(Displayed when in valve feedback

mode and STOP)

Press

Lower limit for alarm 2

(Adjustable when ALA2 is enabled)

Press

Set up alarm mode 2

Press

Time from valve fully closed to

fully open

Press

Key-locked mode

Press

Set up system alarm

Press

Valve DeadBand Setting

Press

Displaying and adjusting

output percentage

(Displayed when in PID mode and

manual RUN)

Press

Enable/disable communication

write-in

Press

Upper limit adjusting with

feedback output

(Displayed when in valve feedback

mode)

Press

Output percentage of valve

feedback

(Displayed when there is valve

feedback)

Press

Select ASCII/RTU

communication format

Press

Lower limit adjusting with

feedback output

(Displayed when in valve feedback

mode)

Press

D/A value of valve feedback

(Displayed when there is valve

feedback)

Press Z Back to top

Set up communication

address

Press

Adjusting PV offset

Press

Set up baud rate

Press

Upper limit for control output

Press

Set up data length

Press

Lower limit for control output

Press Z Back to top

Set up stop bit

Press Z Back to top

Select the PID group: The user can select one of the 4 groups. When n = 4, the program will automatically select the

PID group that is the closest to the SV.

Select the PID group (n = 0~4)

Press

Z PID group 0 ~ 3

Set up the temperature SV for

PID group 0

Press

Set up the temperature SV for

PID group 3

Press

Set up the proportion band for

PID group 0

Press

Set up the proportion band for

PID group 3

Press

Set up the Ti value for PID

group 0

Press

Set up the Ti value for PID

group 3

Press

Set up the Td value for PID

group 0

Press

Set up the Td value for PID

group 3

Press

Set up the integration offset

for PID group 0, AT auto-setting

Pres

Z PD control offset

Set up the integration offset

for PID group 3, AT auto-setting

Press

Z PD control offset

Editing patterns and steps: In parameter , select for editing. Take pattern 0 for example:

Select the pattern No. to be

edited

Select No.

Press V Select OFF

Edit the temperature in step 0

Press

Select the actual number of

steps in the program

Press

Leave pattern and step editing

Edit the time for step 0

(unit: hour/minute)

Set up the number of

additional cycles (0 ~ 99)

Continue the setup in

Press

V Press V

Set up from step 0 ~ step 7 in order

Set up the link pattern.

OFF = end of program

Press

Edit the temperature in step 7

Press

Return to “select the pattern No. to

be edited”

Edit the time for step 7

(unit: hour/minute)

Press

Following the actual number of steps

5 Output Control

4V/8V offers heating and cooling outputs.

In parameter

, you can select either to operate heating control or cooling control. Select for heating

output and

for cooling output.

PVOFF

Heating hysteresi

Cooling hysteresi

Heating

Cooling

Set point

Figure 1: Output operation when in On/Off control

Output

Heating

Cooling

Set point

ure 2: PID control

Key-locked Function

: Lock all the keys on the panel.

: Only SV can be modified.

: Only SV and auto/manual mode can be modified (The control mode has to be PID control).

Press and at the same time to unlock the keys.

6 Types of Temperature Sensors & Temperature Range

Input Sensor Type Register Value Display Range

0 ~ 50mV analog input 17

-999 ~ 9,999

4 ~ 20mA analog input 16

-999 ~ 9,999

0 ~ 20mA analog input 15

-999 ~ 9,999

0V ~ 10V analog input 14

-999 ~ 9,999

0V ~ 5V analog input 13

-999 ~ 9,999

Platinum resistance (Pt100) 12

-200 ~ 600°C

Platinum resistance (JPt100) 11

-20 ~ 400°C

Thermocouple TXK type 10

-200 ~ 800°C

Thermocouple U type 9

-200 ~ 500°C

Thermocouple L type 8

-200 ~ 850°C

Thermocouple B type 7

100 ~ 1,800°C

Thermocouple S type 6

0 ~ 1,700°C

Thermocouple R type 5

0 ~ 1,700°C

Thermocouple N type 4

-200 ~ 1,300°C

Thermocouple E type 3

0 ~ 600°C

Thermocouple T type 2

-200 ~ 400°C

Thermocouple J type 1

-100 ~ 1,200°C

Thermocouple K type 0

-200 ~ 1,300°C

Note 1: 250Ω Precision Resistor must be used with current inputs.

Note 2: The default setting is Pt100 input.

Note 3: To display the decimal point, you have to set up the parameter (in the operation mode). The decimal point display is

available for all modes except for thermocouple B, R, and S type.

Note 4: The range for analog input is -999 ~ 9,999. Take 0 ~ 20mA for example, -999 refers to 0mA input and 9,999 refers to 20mA input. If

we change the range into 0 ~ 2,000, 0 will thus refer to 0mA input and 2,000 refers to 20mA input (1 display scale = 0.01mA).

7 Alarm Output

4V/8V offers 2 groups of alarm outputs and 17 modes for each group under the initial setting mode. When the PV

exceeds or falls below SV, the alarm output will be enabled. See the table below for the 17 alarm output modes.

Mode Alarm Type Alarm Output Operation

No alarm

Off

Alarm output is enabled when the temperature reaches upper and lower limits.

Alarm will be enabled when the PV exceeds SV + AL-H or falls below SV - AL-L.

OFF

AL-L SV AL-H

Alarm output will be enabled when the temperature reaches the upper limit.

Alarm will be enabled when the PV exceeds SV + AL-H.

OFF

L-H

Alarm output is enabled when the temperature reaches the lower limit.

Alarm will be enabled when the PV falls below SV – AL-L.

OFF

AL-L

4 Alarm output will be enabled when the PV is between SV + AL-H and SV – AL-L.

OFF

AL-L SV

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the upper

and lower limits.

Alarm will be enabled when the PV exceeds AL-H or falls below AL-L.

OFF

AL-L

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the upper

limit.

Alarm will be enabled when the PV exceeds AL-H.

OFF

AL-H

Alarm output is enabled when the temperature reaches the absolute value of the lower

limit.

Alarm will be enabled when the PV falls below AL-L.

OFF

L-L

1 2

Instruction Sheet 1
8V/4V 2

Inhaltsverzeichnis

Seite 1 - Instruction Sheet

Series 4V/8V Valve Temperature Controller Instruction Sheet Thanks you very much for choosing Love 4V/8V series valve temperature controller. Ple

Seite 2 - 8V/4V

Mode Alarm Type Alarm Output Operation 8 Standby upper/lower limit alarm: Alarm will be enabled when the PV reaches SV and exceeds SV + AL-H or fall

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