A_HEC-OM-B021
Operation Manual
Thermo-con
HEC*05W-**
HEC105W-1A,-1B,-2A,-2B,-4A,-4B
HEC205W-1A,-1B,-2A,-2B,-4A,-4B
Rev.8 February.2007.
SMC CORPORATION
Ｃｏｎｔｅｎｔｓ
１.For Safety
1
２.Introduction
2
３.Special Caution
1)Ambient Environment and Mounting Conditions
2)Power Supply / Grounding
3)Conditions for Radiating Water
4)Conditions of Constant Temperature Circulating Water
5)Alarm Contact Output
6)Maintenance
7)Transportation and Movement
3
3
3
3
4
4
4
5
４.Specifications
５.Function
1)Auto-tuning Function
2)Offset Function
3)Learning Control Function
4)External Tuning Control Function
5)Sensor Fine Control Function
6)Setting Value Memory Function
7)Serial Communication Function
8)Upper/lower Temperature Limit Alarm Function
9)Output Cutoff alarm Function
6
6
6
6
6
6
7
7
7
６.How to Order
7
７.Outside Dimensions
8
８.Electric Circuit Diagram
8
９.Performance Chart
1)Cooling Performance (HEC105W)
2)Heating Performance (HEC105W)
3)Cooling Performance (HEC205W)
4)Heating Performance (HEC205W)
5)Pumping Performance
6)Pressure Loss of Radiating Water
９
９
10
10
11
11
１０.Name and Function of Each Part
10－1.Main Parts
10－2.Details of Display/Operation Panel
12
13
i
１１.Preparation and Operation
11－1.Cautions for Installation
11－2.Preparation for Radiating Water
11－3.Preparation of Constant Temperature Circulating Water
11－4.Connection of Each Connector and Power Supply Plug
11－5.Starting Operation
11－6.Setting Value
11－7.Cautions for Operation Control
１２.How to Operate Controller
12－1.How to Set Data
12－2.Selecting Front Mode
12－3.Details of Front Mode
12－4.Selecting Back Mode
12－5.Details of Back Mode
12－6.Selecting Second Back Mode
12－7.Details of Second Back Mode
12－8.Default Value of Each Mode
14
14
14
15
15
16
16
17
17
18
20
21
23
23
24
１３.Contents of Alarm
13－1 Alarm
12－2 Countermeasure of Alarm
25
26
１４.Specification of Connectors
28
１５.How to Find Dew Point(from a psychrometric chart)
29
ii
１．Ｆｏｒ
Ｓａｆｅｔｙ
This product is designed fully considering safety, however, wrong handling will lead to
electric shock or other accidents and it is dangerous.
Please be sure to follow the precautions stated below to prevent from accidents.
Operation by Specialist
Operate by a person who has enough knowledge and experience about the device.
Follow Instructions for Safety
Read instructions in this operation manual carefully.
Inspect Regularly
Inspect regularly to avoid operating with failure.
Stop Operation if Failure is Found
If failure is found, stop operation and ask our distributors, or sales offices /branches for repair.
In Case Something is Wrong!
Abnormal noise, smell
Smoking
Water leak
→
① Turn off power supply.
② Stop water supply.
③ Ask our distributors, or sales office/branches
for repair.
Meaning of Warning Mark
The following mark is indicated in this operation manual. After understanding the contents
of indication, read the sentences.
Warning
If instructions with this indication are not followed, electric shock or injuries by other
accidents and damages to surrounding devices will occur.
1
２．Ｉｎｔｒｏｄｕｃｔｉｏｎ
Thank you very much purchasing Thermo-con.
We have always been trying to provide customers with high performance temperature control devices with
highest quality applying our original technology.
Please read carefully this operation manual before starting operation to make good use of performance and
function of this product.
Please keep this operation manual carefully to be able to refer to it at any time.
In case of using communication, please request us “Communication Specifications”.
Ｃａｕｔｉｏｎｓ
(1) Reprinting and reproduction of all parts or a part of this manual are strictly prohibited without notice.
(2) The contents of this manual including specifications may subject to change without notice.
(3) We take all possible measures to make this manual, please make contact with our sales offices and
branches described at the back of this manual if any unclear points or mistakes are found.
(4) We cannot guarantee results of practical use of this product regardless of items (2) and (3).
２
３．Ｓｐｅｃｉａｌ
Ｃａuｔｉｏｎｓ
1)
Ambient Environment and Mounting Conditions
Warning
If instructions with this indication are not followed, electric shock or injuries by other accidents
and damages to surrounding devices will occur.
(１)Avoid operating under the following environment.
①Conditions that liquids (including mist) such as water, brine and oil are splashed.
②Places where fine particles and dust are found.
③Places where corrosive gas, solvent and inflammable gas are contained.
(This product is not explosion proof construction)
④Places where direct sunlight and radiation heat are given.
⑤Places where ambient temperature is out of the range of 10−35℃
⑥Places where fluctuation of temperature is remarkable.
⑦Conditions that dew is formed.(If setting temperature is low, dew may be formed on the piping surface.)
⑧Places where strong electromagnetic noise is generated. (where strong electric field, strong magnetic field
and surge are generated.)
⑨Places where static electricity is discharged and condition that static electricity are discharged to the body.
⑩Places where strong high frequency is generated.
⑪Conditions that strong vibration and shock are transmitted.
⑫Conditions that force and weight which deform the body are given.
(２)Thermo-con is not designed for clean room applications. There is dust generation from pump in Thermo-con.
(３)Each set point is written on to EEROM, however the number of over write possible is no more than 100000
times. Please pay attention to the number of overwrites especially when using communication function.
2) Power Supply / Grounding
(1) Supply power which is in accordance with the specifications.
(2) Be sure to ground(FG, frame ground) and apply the specification.(Grounding resistance is less than 100Ω)
Grounding can be done by cord for power supply. Do not use to ground devices which generate strong
electric magnetic noise or high frequency.
3) Radiating Water
(1) Radiating water should be clean water like tap water. If radiating water is circulated, water quality
control to avoid damaging material (SUS304) contacting to radiating water circuit is required.
(2) Do not operate this device without flowing radiating water or with very little water flowing rate. If it is
operated in such conditions, temperature of radiating water may be reached about 90℃. When resin tube is
connected, it is in danger of softening and exploding. Flow the right amount of radiating water after cooling
naturally not to explode.
(3) Radiating water of a low temperature makes dew condensation in Thermo-con, which will result in
breakage of electrical apparatuses in Thermo-con. Use radiating water of a temperature more than dew
point of atmosphere.(See page 29.)
4) Constant Temperature Circulating Water
(1) Use tap water which can avoid damaging materials contacting to liquid (Refer to the page 14.).
(2) If DI water is used, bacteria or algae may grow for a short period. Change all amount of water regularly
depending on the condition.
(3) Please consult us if liquids other than water is used. Considering pumping capacity, use liquids with less
than 3×10−5 m2/s of viscosity and less than 1.1 of specific gravity.
(4) The max. operating pressure used for constant temperature circulating water circuit is 0.1 MPa.
If the pressure more than this is used, water will be leaked from tank and piping in device.
(5) Select piping length and size in order to flow rate is more than 2L/min. If flow less than 2L/min is applied,
temperature control become unfit and fail to control precisely, then equipment might be broken due to
repetition of cooling/ heating.
３
(6) Magnet operating pump is used as circulation pump for constant temperature circulating water. Liquids
containing metal powder like iron powder cannot be used.
(7) Be sure not to operate without putting constant temperature circulating water. Idling will damage pump.
(8) Note that water may flow out depending on external piping by opening the tank lid after constant
temperature circulating water is supplied.
(9) When an external tank is used, water may flow out from the lid of the built-in tank depending on a place
where the external tank is installed. Since special Thermo-con with no built-in tank are available, uses one
of these in such a case.
(10)When external tank is used at atmosphere pressure, make piping resistance on return side of constant
temperature circulating liquid as small as possible. If piping resistance is large, there is possibility that
piping is collapsed and tank is deformed and damaged because pressure in built-in tank of circulator
becomes negative. As built-in tank of circulator is made of resin (PE), so, in case of negative pressure, tank
may be collapsed. Be sure not to make negative pressure of -0.02MPa or more. Especially, as it is easier to
make forbidden negative pressure value in case of large circulating flow rate, use thick and short piping for
return side and make piping resistance small. Tightening flow rate of outlet is another effective way.
(11)If fluid like DI water which does not conduct electricity much is used as constant temp. water, static
electricity is generated by the friction of the fluid movement. This may damage electric parts of thermo-con,
or cause malfunctioning by discharging to the external temp. sensor. To prevent static electricity from
discharging to the external temp. sensor, temp. sensor wire, communication line, and the signal wire of
warning line, anti-static solution of the constant temp. fluid is necessary.
(12)GALDEN(Solvay Solexis), fluorinert(3M), ethylene glycol are not applicable.
(13)Avoid operation with cavitation and bubble involved because of low water level of tank to keep life of
pump longer.
5) Alarm Contact Output
Upper / lower temperature limit alarm and output cutoff alarm are relay output. Since enclosure is not
attached, use at 24 VDC and the range of 1mA-100mA. The length of connecting cable shall be limited
to around 15m due to noise.
6) Maintenance
(1) Corrective action when abnormality occurs
When abnormal sound, smoke or smell occurs, immediately cut power supply, stop circulating water and
radiating water and use of product. After this, ask selling agent or SMC to repair.
(2) Periodical check
Confirm if product is operated with broken or not periodically by person who has sufficient knowledge
and experience of facility.
(3) Prohibition of disconnection and modification
Avoid to remove panel to disconnect and modify product for preventing electrical shock, burning and
injury. If these action is required absolutely, cut power supply at field or remove power supply connector.
(4) Stop of operation for a long
If operation of Thermo-con is stopped for a long, in order to prevent unintended trouble, disconnect
supply power and drain fluid from both constant temperature water and radiating water loops.
(5) Disposal
Discarded Thermo-cons must be disposed of through an industrial waste dealer.
7) Transportation and Movement
(1) Avoid strong vibration and impact
As Thermo-con is precise, do not give any strong vibration and impact at transportation.
(2) Caution for movement
Thermo-con has much weight. When it is brought up and down, care not to cause damage due to drop.
４
４．Ｓｐｅｃｉｆｉｃａｔｉｏｎｓ
Model
Temp. Setting Range
Temp.Measuring
Range
Setting Accuracy
Temperature Drift
Control Accuracy
(Stability)
Cooling Capacity
(Note 1)
Constant
Temperature
Circulating Water
Radiating Water
ＨＥＣ１０５Ｗ
ＨＥＣ２０５Ｗ
−１
−２
−４
−１
−２
10.0 − 60.0℃ (unable to set at out of range)
-9.9 − 80.0℃ (unable to indicate temperature at out of range)
−４
Within ±0.2℃ (including sensor accuracy)
Within ±0.2℃ (At 15 − 35℃ of ambient temperature)
Within ±0.03℃ (When IN and OUT of constant temperature circulating water
are connected directly)
116W
233W
Pump capacity: Pump head is 0.06/0.09 MPa (50/60Hz) at 5 L/min
Tank capacity: Approx. 1.2L (Sealed tank)
Max. operating Pressure: 0.1 MPa
Flow rate: 3 − 5 L/min
Temperature: 2 − 40℃ (Without dew formation)
Max. Operating Pressure: 1MPa
Piping Fitting
Constant Temperature Circulating Water IN / OUT : Rc3/8
Radiating Water IN / OUT
: Rc3/8
Constant Temperature Circulating Water Drain
: Rc1/4
Power Supply
AC100V
AC200V
AC220V
AC100V
AC200V
AC220V
(±10%V)
1φ, 5 A,
1φ,3 A,
1φ, 3 A,
1φ, 9 A,
1φ, 5 A,
1φ, 5 A,
50 / 60 Hz
50 / 60 Hz
50 / 60 Hz
50 / 60 Hz
50 / 60 Hz 50 / 60 Hz
OverCurrent Protection Fuse 8A
Fuse 6A
Fuse 15A
Fuse 10A
Main Functions
auto-tuning, offset, learning control, external tuning control, sensor fine control,
(Note2) setting value memory, upper / lower temperature limit alarm, output cutoff alarm,
serial communication.
Input Operation
Membrane key seat
Display
Liquid crystal display panel (with back light)
Alarm Output
Output cutoff alarm：relay output(contact C, 24VDC, 1mA−100mA)
Upper/Lower temperature limit alarm: relay output(contact C,24VDC, 1mA−100mA)
Temperature Sensor
Platinum resistance bulb, Pt100Ω, 3wire type, class A, JIS C 1604
(Note 3) (Both internal and external sensor)
Ambient Temp., Humidity 10−35℃, 35−85%RH (without dew formation)
Quality of Air
Good atmosphere where corrosive gas, solvent of thinner, inflammable gas are not
contained.
Instant Power Failure 50ms or less
Insulation Resistance 50MΩ or more
Noise Resistance
1500V for both normal and common modes (1μs range impulse noise)
Static Electricity
Discharge voltage to housing is 10kV or less.
Discharge Resistance
Dimension (Note 4)
Width １８６×Height ２６２ ×Depth ３６８mm
Housing Color
DIC５４６ １/２ (Ivory)
Weight
About １４ kg
Option
With flow switch : Function that output cutoff alarm works when flow rate of
constant temperature circulating water decreases( 1±0.5 L /min. or less)
(Note 1)Conditions that radiating water temperature is at 20℃, radiating water flow rate is at 5 L/min,
setting temperature is at 20℃ and ambient temperature is at 20℃.
(Note 2)As for serial communication, RS-485 is the standard and RS-232C is option.
(Note 3)External sensor should be prepared by customers.
(Note 4)As for dimension, while lid of tank and secure hand are included, drop resistance cover and connector
etc. are not included.
５
５．Ｆｕｎｃｔｉｏｎ
1) Auto-tuning Function
This is a function to set value necessary for control such as PID (proportional band, integral time, derivative
time and ratio of cooling / heating gain) automatically.
2) Offset Function
This is a function to control temperature sliding it by offset value from set point temperature.
The range of offset -9.99 − 9.99℃.
When constant temperature circulating water is carried to an object whose temperature is controlled, certain
deviation is made between temperature before the object and setting temperature of Thermo-con due to
influence by ambient temperature of piping inside. At that case, if deviation is input as offset value,
temperature of constant temperature circulating water just before the object can conform with setting value.
3) Learning Control Function
This is a function to match temperature to setting value by setting designated temperature sensor (external
sensor) at constant temperature circulating water before the object, sampling temperature with Thermo-con
and sliding temperature by offset value at regular intervals automatically.
Providing that temperature of constant temperature circulating water controlled at 30℃ drop to 0.2℃ and
becomes 29.8℃ while it is carried to the object. Then if learning control is turned on, Thermo-con will
increase outlet set temperature by 0.2℃ like broken line and it will be 30.2℃. As a result, temperature of
constant temperature circulating water just before the object is revised to be 30℃ automatically.
Thermo-con
Object that
temperature controls
External sensor
Internal sensor
Target value of internal sensor
Learning control "ON"
Set value
(Target value of external sensor)
（30.0℃）
Temperature
Deviation
（0.2℃）
Learning control "OFF"
4) External Tuning Control Function
This is a function to conform temperature of constant temperature circulating water with external
temperature (ambient temperature). Set temperature sensor where tuning is required, sample the
temperature by Thermo-con and automatically match the constant temperature circulating water to that of
tuning position.
5) Sensor Fine Control Function
This is a function to finely control measurement temperature of control sensor within the range of -9.99−
9.99℃ apart from offset function.
Control sensor can be corrected by inputting difference (calibration value) between temperature of standard
and that of control sensor.
6) Setting Value Memory Function (Function that backs up with EEROM)
This is function that all setting value manually input is backed up with nonvolatile memory, EEROM.
Even if power is turned off, the setting condition just before turning off power is reproduced at re-start.
Resetting is not necessary.
Each set point is written on to EEROM, however the number of over write possible is no more than 100.000
times. Please pay attention to the number of overwrites especially when using communication function.
６
7) Serial Communication Function
This communication function conforms to the communication standards of RS-485 and RS-232C.
Communication is possible with the cable length of 500m for RS-485 and 15m for RS 232C.Communication
allows one host computer to set and monitor operating conditions of up to 16 Thermo-cons.
Contents of communication is as follows.
①Setting and reading of set point temperature
②Reading control sensor value
③Reading alarming status
④Setting offset and reading offset setting value
In case of using communication, please request us “Communication Specifications”
8) Upper / Lower Temperature Limit Alarm Function
This is a function that alarm operates when control temperature is out of allowable upper range and
allowable lower range. When alarm operates, WRN is indicated on liquid crystal display, alarm is output to
Alarm output connector by relay contact. If control temperature returns to within allowable upper / lower
range, this alarm is automatically canceled. Allowable upper / lower range of temperature can be set at the
range of 0−10℃ independently. Please note that upper/ lower temperature limit alarm do not operate until
target temperature is reached once after power is supplied.
9) Output Cutoff Alarm Function
This is a self-check function to cutoff and stop output to thermo-module (operation is continued in case of ERR
15 and ERR 18), and go off alarm when serious failure occurs. When alarm operates, ERR and alarm No. are
indicated on liquid crystal display and alarm is output to alarm output connector by relay contact.
This alarm cannot be canceled without turning off power once and turning it on again.
６．Ｈｏｗ
ｔｏ
Ｏｒｄｅｒ
ＨＥＣ １０５Ｗ－１ Ａ ＊
・Option
Nil ：None
F ：With flow switch
・Communication Specification
A ： RS－485 (Standard)
B ： RS－232C(Semi-standard)
・Power Supply Specification
１ ： AC100Ｖ
２ ： AC200Ｖ
４ ： AC220Ｖ
・Product Type
Ｗ ： Water-cooled unit
・Cooling Capacity
１ ： 116Ｗ
２ ： 233Ｗ
７
７．Ｏｕｔｓｉｄｅ
Ｄｉｍｅｎｓｉｏｎｓ
８．Ｅｌｅｃｔｒｉｃ
Ｃｉｒｃｕｉｔ
Ｄｉａｇｒａｍ
3
RS-485
(RS232C)
RS-485
3
6
L.C.D.
Unit
CPU
board
Sensor
board
3
2
2
AC100V
AC200V
AC220V
2
R
Power supply
switch
Line
Fuse
filter
3
2
SW power
supply
CPU board
SW power
supply
2
FG
８
Pump
Alarm
output
External
sensor
９．Ｐｅｒｆｏｒｍａｎｃｅ
Ｃｈａｒｔ
Value on performance charts is not guaranteed value but representative value.
Value used for consideration should not be the very limit for the safety.
1)Cooling Performance (HEC105W)
2)Heating Performance (HEC105W)
Heating energy
W
Heating energy
９
W
3) Cooling Performance (HEC205W)
4) Heating Performance (HEC205W)
１０
5) Pumping Performance
Pressure shown by the vertical line is differential pressure between IN and OUT of constant temperature
circulating water for Thermo-con.
0.12
0.10
60Hz
Pressure　MPa
0.08
50Hz
0.06
0.04
0.02
0.00
0
2
4
6
Flow rate　L/min
8
10
12
6)Pressure Loss of Radiating Water
Fluid: Water
0.12
Pressure Loss MPa
0.10
0.08
HEC205W
0.06
0.04
HEC105W
0.02
0.00
0
2
4
6
Flow rate L/min
１１
8
10
12
１０．Ｎａｍｅ
ａｎｄ
Ｆｕｎｃｔｉｏｎ
ｏｆ
Ｅａｃｈ
Ｐａｒｔ
10-1.Main Parts
①Power supply switch : Turn ON / OFF power supply of device.
② Display / operation panel: Display various indication and input setting value.
③ Power supply connector: Power supply connector with single-phase current, which is connected to attached
power supply cord.
④ Fuse: Fuse for power supply.
⑤ Alarm output connector: Connector for output cutoff alarm and upper / lower temperature limit alarm.
⑥ Communication connector: Communication connector for RS-485 or RS-232C
⑦ External sensor connector: Connector for connecting external sensor.
⑧ IN for radiating water: Inlet port for radiating water whose port size is Rc3/8.
⑨ OUT for radiating water: Outlet port for radiating water whose port size is the same as inlet port.
⑩ IN for constant temperature circulating water: Inlet (return) port for constant temperature circulating
water whose port size is Rc3/8.
⑪ OUT for constant temperature circulating water: Outlet port for constant temperature circulating water
whose port size is the same as inlet port.
⑫ Water level gauge: Confirm level of water tank.
⑬ Tank: Water tank whose max. capacity is Approx. 1.2L
⑭ Tank lid : Screw type tank lid. This lid is removed for supplying water and sealed by O-ring.
⑮ Drain port: Outlet port for water tank. Port size is Rc1/4.
⑯ Drip proof partition: Drip proof partition for electrical system, and it is secured by screws (2 positions).
⑰ Flow switch: This is a switch to detect if constant temperature circulating water is flowed into inlet (return)
or not. In case of less than 1±0.5 L/min, alarm leveling down constant temperature
circulating water flow works.(E16) Flow switch is an option.
１２
10-2.Details of Display / Operation Panel
① AT key : AT Implement and cancel auto tuning.
② SEL key : SEL Select various modes.
③ RET key : RET Return to temperature indication from each mode.
④ ▼ key (Down key) : ▼ Decrease setting data.
⑤ ▲ key (Up key) : ▲ Increase setting data.
⑥ Data display LCD : Indicate data such as temperature of three digits with sign.
⑦ Mode display LCD : Display mode in 1 digit.
⑧ PV / SV / MODE indicator :
Identify which data is displayed measuring temperature PV, set point
temperature SV or various modes MODE.
⑨ AT indicator : A.T Light during auto tuning.
⑩ WARN indicator : WRN Light when upper / lower temperature limit alarm operates.
⑪ ERR indicator : ERR Light when output cutoff alarm operates.
(9) (10) (11)
(6)
(8)
SMC THERMO-CON
PV
SV
MODE
(7)
(5)
A.T WRN ERR
-88.8
8.
AT SEL RET
(4)
(1)
(2)
１３
(3)
１１．Ｐｒｅｐａｒａｔｉｏｎ
ａｎｄ
Ｏｐeｒａｔｉｏｎ
11-1.Cautions for Installation
Please install Thermo-con into the following places.
(1) Places where water, oil and various chemicals are not splashed and where particles are
hardly found.
(2) Places where corrosive gas and inflammable gas are not contained.
(This product is not explosion proof construction)
(3) Places where ambient temperature is 10−35℃ and humidity is 35−85% without dew
formation.
(4) Places where are not affected by noise generation (electric discharging device, large sized
relay, thyristor etc.)
(5) Places where every cable of Thermo-con is not approached to power lines of other devices.
(6) Places where are not strong electromagnetic field nor strong magnetic field.
(7) Places where are good power supply ground.
11-2.Preparation for Radiating Water
(1) Condition of Radiating Water
① Use clean water like tap water. If radiating water is circulated, water quality control to avoid
damaging materials, SUS304, which is used for radiating water line, should be needed.
Warning
② Water whose temperature range is 2−40℃ can be used. Take care that cooling and heating
performance will be changed depending on temperature. Radiating water of a low
temperature makes dew condensation at heat exchanger, which may result in breakage of
electrical apparatuses in Thermo-con. Use radiating water of a temperature more than dew
point of atmosphere by referring to page 29.
③ The max. operating pressure is 1MPa . Please use low pressure as much as possible
considering water hammer.
④ Flow rate should be 3−5 L/min. Even if flow rate is more than that, performance will be
hardly changed. If flow rate is less than 3 L/min, cooling and heating performance will be
remarkably deteriorated.
(2) Connect fittings to “IN” and “OUT” ports (Rc3/8) of Thermo-con, which are indicated “COOLING
WATER” and pipe tubes to inlet and outlet of radiating water.
Warning (3) Ensure to avoid cutting off radiating water and operating with very little water flow. In case of
such operation, while Thermo-con itself will stop by thermostat, since temperature of radiating
water reaches about 90℃, tube will be soften and exploded.
If thermostat operates (E14 occurs), flow correct rate of radiating water after cooling naturally.
11-3.Preparation of Constant Temperature Circulating Water
(1) Conditions of Constant Temperature Circulating Water
① Use clean water like tap water which does not damage the following materials.
【Materials for sections contacting to constant temperature circulating water】
SUS304, ethylene propylene rubber, polypropylene, polyethylene, Filler contained
fluorocarbon resin , ceramics
② If DI water is used, bacteria or algae may grow for a short period.
So please change all amount of water regularly depending on operating conditions.
③ Since magnet operating pump is used, liquid with high viscosity (3×10−5 m2/s or more) or
one containing iron powder can not be used.
１４
(2) Connect fittings to “IN” and “OUT” ports (Rc3/8) of Thermo-con, which are indicated
“CIRCULATING WATER”, and pipe tubing at inlet and outlet of constant temperature
circulating water.
(3) Select piping length and size in order to circulating flow is more than 2L/min. If flow less than
2L/min is applied, temperature control become unfit and fail to control precisely, then equipment
might be broken due to repetition of cooling/ heating.
(4) Connect fittings to ports (Rc1/4) of Thermo-con, which are indicated “DRAIN” and pipe to drain
port nearby. Provide valve in between piping, use thick and short tubing as much as possible.
(5) Supply constant temperature circulating water by opening tank lid the top of Thermo-con. The
capacity of tank is about 1.2 L. Please take care that flow rate or heat transmission capacity will
deteriorate because air is contained into constant temperature circulating water if water level is
low. Close tank lid after supplying water.
Warning
(6) Be sure to avoid operation without supplying constant temperature circulating water.
Operation without water will damage circulating pump.
11-4.Connection of Each Connector and Power Supply Plug
(1) Connect each connector and power supply plug after checking if power switch of Thermo-con is
turned OFF.
(2) For learning control and external tuning control, connect sensor to “EXTERNAL SENSOR”.
Sensor should be measuring temperature Pt100Ωof the new JIS standards (JIS C 1604) and
3 wire type, and be sure to attach shielding wire.
(3) For communication, connect Thermo-con to host with twist pair shielding wire.
(4) For alarm output, connect twist pair cable to “ALARM” on Thermo-con. It is relay C contact
(24VDC, 1−100mA).
(5) Connect power supply cord to Thermo-con. Connector is screwed type. Ensure to tighten to the
end.
Warning (6) Connect power supply cord to single phase current power supply and ground. Ensure not to
connect grounding wire to power supply. Since frame ground of Thermo-con is also used as
power supply ground, it is necessary to keep reliable power supply ground.(The ground class 3)
(7) Install electric leakage breaker whose electric capacity is suitable for power supply equipment.
11-5.Starting Operation
(1) Run radiating water.
(2) Turn on power supply of Thermo-con.
(3) Display on Thermo-con shows ROM version for about 1 sec. After turning on power supply, and
then the present temperature of constant temperature circulating water is indicated and
operation starts. If alarm goes off after turning on power supply, see contents of errors, turn off
power supply to investigate causes and take countermeasures.
(4) Errors which might occur at starting operation are as follows.
【E16】: It occurs when constant temperature circulating water is not full in piping. Open tank lid and supply
constant temperature circulating water.(When optional flow switch is installed.)
【E18】: It occurs when external sensor is not connected. Connect external sensor or change normal control
operation from learning control or external tuning control. For changing procedure, see section 12-2
on page 17.
１５
11-6.Setting Value
When Thermo-con starts control operation normally, set value such as setting temperature.
(1) Perform fine control of sensor. Refer to the 12-5 and input fine control value.
(2) Set each value such as setting temperature and upper / lower temperature range. Refer to the
chapter 12 and set required value. All preparation is completed by this setting and operation
with the set conditions has been started when mode is returned to normal mode.
(3) Once value is set, value is not erased even if power is turned off. If all value must be reset, turn
on power supply of Thermo-con pushing “RET” key and “SEL” key together. EEROM is forcefully
erased and default value of ROM is set. (See page 24)
11-7.Cautions for Operation Control
(1) If the same water is used for a long time, fur or algae may be formed. Especially, if DI water is
used it is formed in a short period. Replace all water with new one regularly to avoid it. Water
should be discharged from “DRAIN” port turning off power supply. Avoid discharging water
turning on power supply because pump may absorb air due to dropping down of water level.
(2) Flow more than 2 L /min of constant temperature circulating water for Thermo-con.
(3) After turning on power supply, take warming-up time for at least 30 minutes until operation
becomes smooth.
(4) If error occurs during operation refer to the chapter 13, Error Information and take measures.
(5) Radiating water of a low temperature makes dew condensation in Thermo-con, which will
result in breakage of electrical apparatuses in Thermo-con. Use radiating water of a
temperature more than dew point of atmosphere.
(6) When unscrewing the tank lid of Thermo-con, water may flow out depending on its external
piping. When unscrewing the tank lid after constant temperature circulating water is supplied,
ensure that there is no external tank above the level of Thermo-con and no back-flow of constant
temperature circulating water to Thermo-con.
Indication and Setting when Output Cutoff Alarm Operates
① In case of front mode, indicator ERR and error No. are shown.
② If output cutoff alarm operates when back mode or the second back mode is indicated, ERR is shown
but mode data is continued to be indicated without showing error No. and setting can be done.
Output cutoff and alarm contact output are implemented normally.
③ Error No. is indicated if back mode or the second back mode returns to front mode.
④ Even in alarming condition, by pushing SEL key, required function can be selected and set in every
mode (Excepting E00∼E03). If RET key is pushed, indication will return to ERR with error No.
１６
１２．Ｈｏｗ
ｔｏ
Ｏｐｅｒａｔｅ
Controller
12-1. How to Set Data
(1) Controller has 3 modes, Front mode, Back mode and Second back mode. Function of each mode is as follows.
Front mode : Mode normally used.
Back mode : Mode used for maintenance
Second back mode : Mode used to select communication type.
(2) How to Select Mode
Front mode : This mode is set when power supply is turned on.
Back mode : This mode is set by pushing ▼ key and SEL key together.
Second back mode : This mode is set by pushing ▲ key and SEL key together.
(3) How to Select Function and Data Setting in Each Mode
① Required function can be selected by pushing SEL key in each mode.
② Move up and down function data with ▲ and ▼ keys.
Increase data by the count of 1 by pushing ▲ key.
Decreases data by the count of 1 by pushing ▼ key.
When ▲ and ▼ keys are kept pushing, data move up and down automatically.
③ The data is set in 2 seconds after releasing ▲ and ▼ keys.
12-2. Selecting Front Mode
When power supply is turned on, front mode is set. By pushing SEL key one by one, front mode changes as
follows.
Push RET key once in case of returning to measuring temperature indication.
Mode Indication
Indicating measuring temperature：Indicator
lights on PV and indicates measuring
① 1.or2.
temperature of internal or external sensor.
↓
Setting set point temperature：Indicator lights on SV and sets set point temperature for
② Nil
control.
In the following function, Indicator lights on MODE.
↓
Selecting control operation：Select normal control operation, auto tuning operation, learning
③Ｃ
↓
control operation, external tuning control operation
Setting external sensor sampling cycle：Set sampling cycle at learning control or external
④e
tuning control. If learning control or external tuning
control is not set, this mode is skipped.
↓
Setting offset value：Control temperature of PV sliding by offset value.
⑤o
↓
Setting allowable upper temperature range：Set allowable upper temperature range for set
⑥H
point temperature .
↓
Setting allowable lower temperature range：Set allowable lower temperature range for set
⑦L
↓
point temperature.
Setting high temperature cutoff temperature of internal sensor：
⑧ｎ
Set high temperature cutoff temperature of internal sensor. (by 0.1℃)
↓
Setting low temperature cutoff temperature of internal sensor：
⑨ｕ
Set low temperature cutoff temperature of internal sensor.(by 0.1℃)
↓
１７
12-3. Details of Front Mode
① Indicating measuring temperature : Mode indication１. or ２. ,Indicator lights on PV.
[Indicating Range] -9.9−80.0
[Contents of Indication] Measuring temperature of internal
sensor and external sensor.
[Function] Measuring temperature is indicated.
Ｍode indication“１.“means internal sensor and “２.“means
external sensor. Push ▲ or ▼ key for change. For normal
control, internal sensor “１.“is indicated, and when learning
control and external tuning control are selected, external sensor
“２.“ is indicated.
Indication when key is not input for 1 minute
If key is not input for 1 minute, indication will automatically return to measuring temperature indication
even if any setting conditions of front mode, back mode and second back mode.
② Setting set point temperature : Ｍode indication is blank, Indicator lights on SV.
[Setting Range] 10.0℃−60.0℃
[Contents of Indication] Set point temperature
[Function] Controlled set point temperature is set.
③ Selecting control operation : Mode indication is Ｃ , Indicator lights on MODE.
[Setting Range] 1 − 4
[Contents of Indication]
･ Control Operation No.
･ “C “ indicates that it is setting mode of control operation.
[Function] Select control operation.
1: Normal control operation
2: Auto tuning operation
3: Learning control operation
4: External tuning control operation
Implementation of Auto Tuning
① Keep initial value of PID value used for control (See page 22) and it is not needs to change it.
If control temperature is unsettled regularly, implement auto tuning.
② Set “2” at control operation selecting mode C.
③ When AT key is pushed, indicator A.T lights on and auto tuning starts.
④ If it is needs to cancel auto tuning, push AT key. Indicator A.T is turned off.
⑤ If indicator A.T is turned off, control operation returns to normal soon. During auto tuning, at first
temperature is increased by 3℃ higher than set point temperature and then returned to set point
temperature.
⑥ If auto tuning is not finished for 20 minutes, alarm ERR19 is gone off and output is cut off(stop
control). Turn off power supply once and turn it on again to start operation.
⑦ If auto tuning is not worked smoothly, adjust PID value(proportional band, ARW value, integral time
and derivative time) of back mode by hand.
During Auto-tuning
Auto-tuning Error
１８
④ Setting external sampling cycle : Mode indication is e , Indicator lights on MODE.
[Setting range] 10−999 sec.
[Contents of Indication]
･External sensor sampling cycle
･”e “ indicates that it is external sensor sampling cycle setting mode.
[Function] Set sampling cycle of learning control or external tuning
control.
⑤ Setting offset value : Mode indication is ｏ , Indicator lights on MODE.
[Setting Range] -9.99−9.99℃
[Contents of Indication]
･Offset value
･”ｏ “ indicates that it is offset value setting mode.
･Decimal mode is not indicated. The example in the left figure means
-0.57℃.
[Function]
･Set offset function which controls set point temperature shifting it from
actual value by adding / reducing desired value to measured value of
internal sensor. If -1.0 is set, actual control temperature will be
reduced 1.0℃.
⑥Setting allowable upper temperature range : Mode indication is H , Indicator lights on MODE.
[Setting Range] 0.0−10.0℃.
[Contents of Indication]
･Allowable upper temperature range
･” H “ indicates that it is allowable upper temperature range setting
mode.
[Function]Set allowable upper temperature range for upper / lower
temperature limit alarm. Input allowable upper range from set
point temperature.
⑦ Setting allowable lower temperature range : Mode indication is L , Indicator lights on MODE.
[Setting Range] 0.0−10.0℃.
[Contents of Indication]
･Allowable lower temperature range
･” L “ indicates that it is allowable lower temperature range setting
mode.
[Function]Set allowable lower temperature range for upper / lower
temperature limit alarm. Input allowable lower range from set
point temperature.
Condition when upper / lower temperature limit alarm works
When upper / lower temperature limit alarm works,
indicator WRN lights on.
Since control continues, indicator WRN turns off when
temperature returns to within allowable upper / lower
temperature range.
１９
⑧ Setting high temperature cutoff temperature of internal sensor :Mode indication is ｎ .
Indicator lights on MODE.
[Setting Range] 11.0−70.0℃.
[Contents of Indication]
･High temperature cutoff temperature of internal sensor.
･” ｎ “ indicates that it is a mode to set high temperature cutoff
temperature of internal sensor.
[Function] Set high temperature cutoff temperature of internal sensor
(by 0.1℃.)
⑨Setting low temperature cutoff temperature of internal sensor :Mode indication is ｕ .
Indicator lights on MODE.
[Setting Range] 0.0−59.0℃.
[Contents of Indication]
･Low temperature cutoff temperature of internal sensor.
･”ｕ “ indicates that it is a mode to set low temperature cutoff
temperature of internal sensor.
[Function] Set low temperature cutoff temperature of internal sensor
(by 0.1℃.)
12-4. Selecting Back Mode
This mode (hereinafter back mode) is used to set data which is not usually used, and mainly applied to
maintenance.
Mode changes to back mode by pushing ▼ and SEL keys together.
Pushing RET key 1 time, indication changes to fine control of internal sensor and pushing RET key again,
returns to front mode. If mode indication is at fine control of internal sensor before returning to front mode,
push RET key only 1 time. By pushing SEL key one by one, back mode changes as follows.
Indicator
lights on MODE to indicate following functions.
Mode Indication
Fine control of internal sensor：Internal sensor value is finely controlled.
① 1.
↓
Fine control of external sensor：External sensor value is finely controlled.
② 2.
↓
Setting PB range：Proportional band range is set.
③P
↓
Setting ARW range：Set effective integral control range (Anti-reset windup)
④A
↓
Setting I constant：Set integral time.
⑤I
↓
Setting D constant：Set derivative time.
⑥d
↓
Setting heating / cooling ratio：Output ratio of cooling to heating is set to correct difference of
⑦E
gain between heating and cooling.
↓
Setting overload judging temperature range：Set overload judging temperature range.
⑧r
↓
Setting overload judging time：Set overload judging time.
⑨q
↓
Output indication：Indicate output ratio of controller.
⑩G
↓
２０
12.5 Details of Back Mode
① Fine control of internal sensor value : Mode indication is 1. ､Indicator lights on MODE.
[Setting Range] -9.99−9.99℃.
[Contents of Indication]
･Internal sensor fine control value.
･” 1. “ indicates that it is internal sensor fine control value.
･Decimal point is not indicated. The left example indicates -0.32℃.
[Function]Set correction value when internal sensor value is revised. When
-1.0℃ is set, temperature value of sensor increases 1.0℃ and
actual control temperature decreases 1.0℃.
② Fine control of external sensor value : Mode indication is 2. , Indicator lights on MODE.
[Setting Range] -9.99−9.99℃.
[Contents of Indication]
･External sensor fine control value.
･” 2. “ indicates that it is external sensor fine control value setting mode.
･Decimal point is not indicated. The left example indicates -3.82℃.
[Function] Set correction value when external sensor value is revised.
When -1.0 is set, temperature value of sensor increases 1.0℃.
③ Setting PB range : Mode indications is P , Indicator lights on MODE.
[Setting] 0.3−9.9℃
[Contents of Indication]
･PB range (Proportional band)
･” P “ indicates that it is PB range setting mode.
[Function] Set PB range used for PID control.
④ Setting ARW range : Mode indication is A, Indicator lights on MODE.
[Setting Range] 0.3−9.9℃
[Contents of Indication]
･ARW range (Anti-reset windup)
･” A “ indicates that it is ARW range setting mode.
[Function] Specify operating range of integral operation.
⑤Setting I constant : Mode indication is I, Indicator lights on MODE.
[Setting Range] 0−999 sec.
[Contents of Indication]
･I constant (Integral time)
･” I “ indicates that it is I constant setting mode.
[Function]Set integral time (sec.) used for PID control. Integration is not
performed at 0.
⑥ Setting D constant : Mode indication is d. Indicator lights on MODE.
[Setting Range] 0−99.9 sec.
[Contents of Indication]
･D constant (derivative time)
･” d “ indicates that it is D constant setting mode.
[Function]Derivative time used for PID control is set. Derivative is not
performed at 0 (PI control).
２１
⑦ Setting of heating / cooling ratio :Mode indication is E , .Indicator lights on MODE.
[Setting Range] 10−999 %
[Contents of indication]
･Ratio of heating / cooling gain.
･” E “ indicates that it is setting mode for ratio of heating / cooling gain.
[Function]Output ratio of cooling for heating is set to correct difference of
gain between heating and cooling.
⑧ Setting overload judging : Mode indication is r , Indicator lights on MODE.
[Setting Range] 0.1−9.9℃
[Contents of Indication]
･Overload judging temperature range.
･” r “ indicates that it is overload judging temperature range setting mode.
[Function] Temperature range to judge overload (E15) is set.
⑨ Overload judging time : Mode indication is q , Indicator lights on MODE.
[Setting Range] 0−99 min.
[Contents of Indication]
･Overload judging time.
･” q “ indicates that it is overload judging time.
[Function] Overload judging (E15) time is set.
When setting value is 0, the judgment of E15 isn't done.
(E15 doesn't occur)
⑩Output indication : Mode indication is G , Indicator lights on MODE.
[Range] -100−100%
[Contents of Indication]
･Output ratio.
･” G “ indicates that it is output indication mode.
[Function] Output ratio of controller is indicated.
PID Value
PID value is as follows. Normally adjustment is not required. Although adjustment is required if
control temperature becomes unstable periodically using auto tuning is recommended.
―HEC105W―
PB range=0.4, ARW range=1.0, I constant=100, D constant=0, Ratio of heating / cooling gain=200
―HEC205W―
PB range=0.6, ARW range=1.0, I constant=150, D constant=0, Ratio of heating / cooling gain=200
２２
12-6. Selecting Second Back Mode
This mode (hereinafter second back mode) is used to select communication method. Second back mode is
entered by pushing ▲ key and SEL key together. Pushing RET key one time, unit number setting is indicated
and pushing again, it returns to front mode. If unit number setting is displayed before returning, push RET key
only 1 time.
By pushing SEL key one by one, second back mode changes as follows.
Indicator
lights on MODE in the case of function started below.
Mode Indication
Unit number setting : Unit number for communication is set.
①ｃ
↓
Baud rate setting : Communication Baud rate is set.
②b
↓
Parity bit setting : Communication parity bit is set.
③r
↓
Data length setting : Communication data length is set.
④L
↓
Stop bit setting : Communication stop bit is set.
⑤┘
↓
12-7. Details of Second Back Mode
① Unit number setting : Mode indication is ｃ , Indicator lights on MODE.
[Setting range] 0−F (hexadecimal)
[Contents of Indication]
･Unit number of communication.
･” ｃ“ indicates that it is communication unit setting mode.
[Function] When multiple Thermo-cons are used, unit number of each one is
specified by hexadecimal.
② Baud rate setting : Mode indication is b , Indicator lights on MODE.
[Setting range] 600,1200,2400,4800,9500 b/s
[Contents of Indicator]1/10 of setting baud rate.
･“ b “ indicates that it is Baud rate setting mode.
[Function]Setting value is scrolled by ▲ and ▼ keys.
60
120
240
480
960
③Parity bit setting : Mode indication is r , Indicator lights on MODE.
[Setting range] 0,1,2
[Contents of Indication]
･Parity bit of communication.
･” r “ indicates that it is parity bit setting mode.
[Function]Parity bit is set.
0 : Without parity
1 : Odd number
2 : Even number
２３
④ Data length setting : Mode indication is L , Indicator lights on MODE.
[Setting range] 0,1
[Contents of Indication]
･Data length of communication.
･” L “ indicates that it is data length setting mode.
[Function]Data length is set.
0 : Data 8 bits
1 : Data 7 bits
⑤ Stop bit setting : Mode indication is ┘, Indicator lights on MODE.
[Setting range] 0,1
[Contents of Indication]
･Stop bit of communication.
･” ┘“ indicates that it is stop bit setting mode.
[Function]Stop bit is set.
0 : 1 bit of stop bit
1 : 2 bits of stop bit
12-8. Default Value of Each Mode
Front mode
Back mode
Second back mode
Contents
Set point temperature
Control operation
External sensor sampling cycle
Offset value
Allowable upper temperature range
Allowable lower temperature range
High temperature cutoff temperature of internal sensor
Low temperature cutoff temperature of internal sensor
Fine control of internal sensor
Fine control of external sensor
PB range
ARW range
I constant
D constant
Heating/Cooling ratio
Overload judging temperature range
Overload judging time
Unit number
Baud rate
Parity bit
Data length
Stop bit
２４
Setting Value
25.0
1
180
0
1.5
1.5
70
0
0
0
0.6
1.0
150
0
200
0.2
10
0
120
0
0
0
１３．Ｃｏｎｔｅｎｔｓ
ｏｆ
Ａｌａｒｍ
1) Alarm
Contents of Alarm
E00
Upper temperature limit alarm
It operates when sensor value (Note1)
exceeds value of temperature setting
value plus allowable upper temperature
range. (Alarm dose not operate until
temperature reaches setting value
after turning on power.)
Lower temperature limit alarm
It operates when sensor value (Note 1) is
less than value of temperature setting
value minus allowable lower temperature
range.(Alarm does not operate until
temperature reaches setting value
after turning on power)
Runaway of CPU
Runaway of CPU due to noise.
Output Upper/
cutoff Lower
alarm temperature
limit alarm
×
○
Blinking
LCD
Condition
after
alarming
WRN
Normal
(Lighting) operation
At any
time
×
○
Normal
WRN
(Lighting) operation
At any
time
○
×
ERR
Turn on
power
again.
Device
stops
Communication stops
Device
stops
Communication stops
Device
stops
Communication stops
Device
stops
Communication stops
Device
stops
E01
ROM check failure
ROM check failure when power is
turned on.
○
×
ERR
E02
RAM check failure
RAM check failure when power is
turned on.
○
×
ERR
E03
Back-up data error
EEROM data is damaged when power
is turned on again.
○
×
ERR
E10
DC power voltage rises.(power failure)
Thermo-module cuts off.
○
×
ERR
E11
DC power voltage drops(power failure)
Thermo-module shorts.
○
×
ERR
Device
stops
E12
Internal sensor value is extremely high.
It operates when internal sensor value
(Note2) exceeds internal sensor high
temperature cutoff temperature.
Internal sensor value is extremely low
It operates when internal sensor value
(Note 2) is less than internal sensor
low temperature cutoff temperature
○
×
ERR
Device
stops
○
×
ERR
Device
stops
E13
Returning
Method
Change
EEROM.
Change
substrate.
Readjust
data of
EEROM.
Turn on
power
again.
Turn on
power
again.
Turn on
power
again.
Turn on
power
again.
Note 1) Internal sensor value shall be applied to normal control, and external sensor value shall be applied to
learning control and external tuning control.
Note 2) Internal sensor value for alarm here is the value that fine control value is decreased from internal
sensor value and offset value is not included.
Internal sensor value for alarm = Internal sensor value − Internal sensor fine control value
２５
7seg.LED
(Blinking)
E14
E15
E16
E17
E18
E19
Contents of Alarm
Thermostat alarm
It operates when overheat detecting
thermostat operates.
Output failure alarm
It operates when temp. change is less
than overload judging temp. range
even if 100% output is performed
continuously for overload judging
time. When overload judging time
value is 0, the judgment of E15 isn't
done. (E15 doesn't occur)
Decrease of flow rate of constant
temperature circulating water(Option)
It operates when flow rate is less than
1±0.5 L/min.
Cutoff and short circuit of internal
sensor
It operates when internal sensor cuts
off or internal sensor value is at 0
Cutoff and short circuit of external
sensor
It operates when external sensor cuts
off or external sensor value is at 0.
(It is detected only at learning control
or external turning control.)
AT failure
It operates when auto tuning is not
finished in 20 minutes after starting
auto tuning
Output Upper/
cutoff Lower
alarm temperature
limit alarm
○
×
Blinking
LCD
Condition
after
alarming
Returning
Method
ERR
Device
stops
Turn on
power
again.
Turn on
power
again.
○
×
ERR
Operation
continues
○
×
ERR
Device
stops
Turn on
power
again.
○
×
ERR
Device
stops
Turn on
power
again.
○
×
ERR
Operation Turn on
continues power
at normal again.
control
○
×
ERR
Device
stops
Turn on
power
again.
2) Countermeasures of Alarm
Alarm
Causes
Repair
1)E00 Runaway of CPU
①High level noise entered the power ① Move the Thermo-con to an
environment with little noise, turn
line, ground line, or sensor line.
ON the power supply. Alarm is
confirmed, we will exchange and
repair the Thermo-con
If there is no alarm, it causes from
noise. Please consult with us.
2)E01 ROM check failure
①High level noise entered the ① Move the Thermo-con to an
power line, ground line, or sensor
environment with little noise, turn
line.
ON the power supply. Alarm is
confirmed, we will exchange and
repair the Thermo-con
If there is no alarm, it causes from
noise. Please consult with us.
3)E02 RAM check failure ①High level noise entered the power ① Move the Thermo-con to an
environment with little noise, turn
line, ground line, or sensor line.
ON the power supply. Alarm is
confirmed, we will exchange and
repair the Thermo-con
If there is no alarm, it causes from
noise. Please consult with us.
２６
Alarm
4)E03 Back-up data error
5)E10
rises
Causes
Repair
①The EEROM data was destroyed ① Move the Thermo-con to an
environment with little noise, turn
by high level noise.
ON the power supply. Alarm is
confirmed, we will exchange and
repair the Thermo-con
If there is no alarm, it causes from
noise. Please consult with us.
DC power voltage ① Thermo-module broken wire.
①②Replace and check the failure. We
② DC power supply breakdown.
will repair if Thermo-con is failed.
6)E11
drops
DC power voltage ①DC output voltage of Thermo-con
is decreased.
②Thermo-module shorts wire.
③DC power supply breakdown.
7) E12 Internal sensor value ①Internal sensor value exceeds
is extremely high.
internal sensor high temp. cutoff
temperature.
②High level noise entered the
sensor line.
8)E13 Internal sensor value ①Internal sensor value is less than
is extremely low
internal sensor low temperature
cutoff temperature.
②High level noise entered the
sensor line.
9)E14 Thermostat alarm
①Flow rate of radiating water is not
proper over 3L/min.
10)E15
Output failure ①Cooling or heating ability over by
alarm
loaded.
②Thermo-module broken wire.
③High level noise entered the
sensor line.
11) E16 Decrease of flow ① Flow rate of constant temp.
rate of constant temperature
circulating water is 1±0.5 L/min
circulating water.
or less.
② Thermo-con is failure.
12)E17 Cutoff and short ①Internal sensor is short circuit or
circuit of internal sensor
broken wire.
②High level noise entered the
sensor line.
13)E18 Cutoff and short ① External sensor is unconnected or
circuit of external sensor
bad.
② External sensor is short circuit or
broken wire.
③ High level noise entered the
sensor line.
14)E19 AT failure
①Capacity of constant temp. water
circuit is too large.
15) Temperature rises and ① Flow
rate
of
constant
falls ±1 to 2 ℃ gradually
temperature circulating water is
less than 2L/min.
about
the
set
point
② P.I.D parameters are wrong value.
temperature.
③ Defective connection inside the
temperature sensor.
２７
①Check the power voltage 180 to 242V.
②③Replace and check the failure. We
will repair if Thermo-con is failed.
① Check whether the abnormal
temperature occur reality.
② Check the temperature unstable
occurred by noise. Please consult us
if it causes noise.
①Check whether the abnormal
temperature occur reality.
②Check the temperature unstable
occurred by noise. Please consult us if
it causes noise.
① Confirm the flow rate of radiating
water.
①If PV temp. changes when the set
temp. is raised and down, it causes
overload. Increase radiating water.
②Replace and check the failure. We will
repair if Thermo-con is failed.
③Please correspond the same as E00.
① Examine and correspond the causes
for constant temp. flow rate decreased.
② Replace and check the failure. We will
repair if Thermo-con is failed.
①Replace and check the failure. We will
repair if it is failed.
②Check the temperature unstable
occurred by noise. Please consult us if
it causes noise.
① Connect normal sensor.
② Check whether the external sensor is
abnormal.
③ Check the temperature unstable
occurred by noise. Please consult us if
it causes noise.
① Adjust PID value(proportional band,
ARW value, integral time and
derivative time) of back mode by hand.
① In case of flow rate of the constant
temp. circulating water decreased,
adjust the P.I.D. values.
② Enter the regular P.A.I.D. parameters.
Replace and check the failure. We will
repair if it is failed.
１4．Ｓｐｅｃｉｆｉｃａｔｉｏｎ
ｏｆ
Ｃｏｎｎｅｃｔｏｒｓ
Interfitting connectors other than the power supply connector should be prepared by customers.
①Power supply connector
100V：Nanaboshi NR-203-RM
200V,220V：Nanaboshi NJC-203-RM
Interfitting Connector：NR-203-PF Interfitting Connector：NJC-203-PF
Pin No. Contents of signal
Pin No. Contents of signal
1
AC100V
1
AC200V/220V
2
2
AC200V/220V
AC100Ｖ
3
FG
3
FG
②External sensor connector
AMP Japan,Ｌtd.：1-178802-5
Interfitting connector：1-178288-5＆1-175217-3
Pin No.
Contents of signal
1
Resistance temperature sensor A terminal
2
Resistance temperature sensor B terminal
3
Resistance temperature sensor B terminal
4
FG for shield
5
Unused
③Alarm output connector
AMP Japan,Ltd：178803-3
Interfitting connector：178289-3＆1-175217-3
Rated voltage（DC24V）、Current of contact point（1−100mA）
Pin No.
Contents of signal
A1
Output cutoff alarm a contact(OPEN at alarming)
A2
Output cutoff alarm common
A3
Output cutoff alarm
b contact(CLOSE at
A1
alarming)
A2
B1
Upper/Lower temperature limit alarm a contact
(OPEN at alarming)
A3
B2
Upper/Lower temperature limit alarm common
B3
Upper/Lower temperature limit alarm b contact
(CLOSE at alarming)
④Communication connector（RS-485）
DDK Equivalent to 17JE-13090-02（D1）
Interfitting connector：17JE-23090-02（D8A）
Pin No.
Contents of signal
1
RS-485 BUS ＋
2
RS-485 BUS −
4
Unused
3、4
5
SG
5
Unused
6−9
⑤Communication connector（RS-232C）
DDK Equivalent to 17JE-13090-02（D1）
Interfitting connector：17JE-23090-02（D8A）
9
Pin No.
Contents of signal
8
1
Unused
2
RS-232C RD
3
RS-232C SD
4
Unused
5
SG
Unused
6−9
２８
1
2
3
B1
B2
B3
3
2
1
6
7
％
１5．Ｈｏｗ ｔｏ Fｉｎｄ Dｅｗ Pｏｉｎｔ(ｆｒｏｍ ａ ｐｓｙｃｈｒｏｍｅｔｒｉｃ ｃｈａｒｔ)
5
45 0
40
60
70
10
0
90
80
Rel
ati
ve
hu
m
idi
ty
55
Point A
30
35
Point B
4
10 13
20
24
30
Temperature ℃
1) Measure the ambient temperature and humidity.
2) Plot ambient temperature to the temperature of horizontal axis (ex.24℃), then draw perpendicular
line.
3) Obtain intersection (A) of the curve which is almost equal to ambient temperature and the
perpendicular of 2).
4) Draw a line from (A) in parallel to temperature axis ,and obtain the intersection (B) of that line and
the curve of relative humidity 100%.
5) Draw perpendicular line from the intersection (B). The temperature of the intersection of that line and
the temperature axis is dew-point temperature. (ex.13℃)
*Therefore, moist in the air starts to be formed into dew when the temperature becomes lower than
this temperature.
２９