PID-controll-unit for Termotek Laserkühlung · CENTRAL CHILLERCONTROLL 3 PID-controll-unit for Termotek Laserkühlung . V 1.1 Hardbergstraße 9 Phone: +49(0)7222/50 58-0 – Fax:

V 1.1

Hardbergstraße 9Phone: +49(0)7222/50 58-0 – Fax: +49(0)7222/50 58-290

76437 Rastatt, Germany E-Mail: [email protected] - www.termotek-ag.com

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CENTRAL CHILLERCONTROLL 3

PID-controll-unit for Termotek Laserkühlung

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Contents

1. GENERAL NOTES........................................................................................................... 3

1.2. UNIQUE CONTROL FEATURES ......................................................................................... 3 1.3. SPECIAL BUTTON ASK ..................................................................................................... 3 1.4. SHEME OF CONTROL ELEMENTS...................................................................................... 4

2. POSIBILITIES TO ADJUST........................................................................................... 5

2.1. FIRST PROGRAMMING LEVEL ......................................................................................... 5 2.1.1 ADJUSTABLE PARAMETER ................................................................................... 5 2.1.2 PARAMETER DESCRIPTION .................................................................................. 5 2.2. SECOND PROGRAMMING LEVEL (USER-LEVEL)............................................................. 6 2.2.1 ADJUSTABLE PARAMETER ................................................................................... 7 2.2.2 Parameter Description .................................................................................................... 8 2.3. THIRD PROGRAMMING LEVEL (TECHNICIAN-LEVEL) ................................................... 9 2.3.1 Adjustable Parameters.................................................................................................... 9 2.3.2 Parameter Description .................................................................................................. 11 2.4. FOURTH PROGRAMMING LEVEL (ADMINISTRATOR-LEVEL) ...................................... 16 2.4.1 Adjustable Parameters.................................................................................................. 16 2.4.2 Parameter Description .................................................................................................. 17

3. CIRCUIT DIAGRAM..................................................................................................... 19

4. EVOLUTION .................................................................................................................. 20

5. PARAMETER VIA RS232 ‐ INTERFACE ................................................................. 21

6. F. A. Q. ............................................................................................................................. 26

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General Notes



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1. General Notes

Picture 1-1

1.2. Unique Control Features

The controller is optimised for water cooling laser systems with bypass regulation.

After re-starting (starting point below/above the set value) maximum heating/cooling power will be

used to reach the accordant value.

On the one hand, the analysis of the flow rate sensors is monitored on the front panel display ( with

time delay for starting), on the other hand the signal (for release) would be send directly to the digital

output (“1” = release)

1.3. Special Button Ask Pressed Button Function

ESC - display the set value - menue level back

↵ - menue - confirm

↑ - chiller on/off - menue point up - value up

← - disable beeper - menue level forward - position left

→ - menue level forward - position right - info

↓ - menue level down - value down

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General Notes



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1.4. Sheme of control elements

The operational mode is indicated by lighting of the green LED. If a fault occurs, the

red LED will light. It depends to the fault and the adjusted parameters whether the

chiller discontinues operating. The beeper can be disabled by pressing the mute-

button (←). The error messages are self-explanatory by pressing the info-button

(→). The appeard fault can be accepted by pressing the Quit-button (↓). If remote

start is enabled, the fault can only be accepted by the remote start signal. The

chiller restarts autonomously when the green LED lights.

errorr LED

operational mode LED

ESCAPE/set value

LEFT/mute

Picture 1-2

display ENTER/menue UP/on/off RIGHT/roll/info DOWN/quit

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Posibilities To Adjust



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2. Posibilities To Adjust

2.1. First Programming Level

Set value adjusting By pressing the ESCAPE-button (ESC), you can reach the set value display (1st

programming level). By pressing the UP- and DOWN-button (↑↓) you can adjust the

value of the digit, with the RIGHT- and DOWN-button (← →) you can choose the

digit. The set value is affirmed by pressing the ENTER-button (↵), you can cancel

the input by pressing the ESCAPE-button (ESC). Adjusting the set value is only

possible in the specified range. (Water temp. Func./Lower set value limit; Water temp.

Func./Upper set value limit).

Picture 2-1

2.1.1 Adjustable Parameter

Function Range Default Customer

setting Set value Lower/upper set value limit 20,0 °C

2.1.2 Parameter Description Set Value

Here you can adjust the set value, the water is cooled or heated to reach this temperature.

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2.2. Second Programming Level (User-level)

Adjusting parameters By pressing the ENTER-button (↵), you can reach the 2nd programming level.

Therefore, please enter your user-password (0020). By pressing the UP- and

DOWN-button (↑↓) you can adjust the value of the digit, with the RIGHT- and

DOWN-button (← →) you can choose the digit. The set value is affirmed by

pressing the ENTER-button (↵), you can cancel the input by pressing the ESCAPE-

button (ESC).

Picture 2-2

Here you have the possibilty to adjust the following parameters

Language Filling Water level System function control function

All other parameters cannot be adjusted

because these could damage the function of

the chiller. Please contact Termotek.

Choose the wished paramater and confirm with the ENTER-button (↵). To save the

action press the ESCAPE-button (ESC) until following display appears (Picture 2-3)

(Save changes? YES = Enter)

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Picture 2-3

You can confirm with the ENTER-button (↵) or abort with The ESCAPE-button

(ESC) and return to the start display.

2.2.1 Adjustable Parameter

Function Range Default Customer

setting Language GERMAN

ENGLISH GERMAN

Fill Water level/Switch off output NO/YES NO Water level/Level monitor DISABLE/ENABLE DISABLE Water level/RelayW-level W-WARNING ENABLE/

W-ALARM ENABLE W-ALARM

System function/Beeper ON/OFF/IF

OPERATION ON

System function/Rolling menue ON/OFF ON System function/Operating hours Only read out System function/Starting mode KEY/LINE/REMOTE

START/START FLAG KEY

System function/Temperature scale °C / °F °C System function/Baud rate 9.600, 14.400, 19.200,

28.800, 38.400, 57.600 38.400

Control functions/Pump operation hours Only read out Control functions/Hot gas valve operation Hours Only read out Control functions/PID-Control/dT increase start -99.9 … 99.9 K 1.0 K Control functions/PID-Control/dT-increase 100 … 500 % 100 %

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2.2.2 Parameter Description Language

Choose the required language for display. Fill

This mode is required to fill and to drain the unit: Starting the filling mode is only possible if the controller is switched off („starting mode“ = key) or remote start („starting mode” = line) is disabled. If the fill mode is enabled, it can be started by switching off the chiller and on again. While the filling mode is active, no alarm messages are monitored (only for a defined period System function/Advanced/Long term rejection).

Water level/ Switch off output

This allows the disabling of the outputs at water level alarm to be prohibited. In this case, simultaneous operation together with the flow alarm will be prevented (i.e. Switch off output = YES) => at water alarm, no flow alarm will be given.

Level monitor Monitors the water level via bar on the display.

RelayW-level

System functions/ Beeper

No beeper will sound except warning at filling mode. Rolling mode

The different values will appear succesive. Operation hours

Read out the hours of operation. Starting mode

The controller can switched on or off using either the UP-button (↑) on the front panel, the remote start input or the start flag (via RS232 – connector). If the remote start input is used to enable the outputs, then the controller is always on. Using the starting mode line, the chiller will start as soon as voltage is enable.

Temperature scale The unit can be switched between Fahrenheit and Celsius. Despite changing this unit, the parameter and set value and adjustment range remain the same. Only the display shows °F!

Baud rate Adjust speed of the RS232 interface.

Control functions/ Pump operation hours

Read out the operational hours of pump. Heating operation hours

Read out the operational hours of heating.

Control functions/PID-control dT-increase start

Start temperature of temperature control. dT-increase

Heats/cools the chiller without control until dT-increase start is reached Use only at laboratory operation!

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2.3. Third Programming Level (Technician-level) For some paramters you have to enter the technician-password. The third programming level is on the same kind reachable as the second one.

2.3.1 Adjustable Parameters Function Range Default Customer

setting Conduct. func./Alarm conductivity 0.0 – 99.9 µS 20.0 µS Conduct. func./Pre alarm conductivty 0.0 – 99.9 µS 8.0 µS Conduct. func./Alarm delay 0 ... 999 s 10 S Conduct. func./Conductivity valve-off 0.0 – 99.9 µS 4 µS Conduct. func./Conductivity valve-on 0.0 – 99.9 µS 6 µS System function/Advanced/Error relays ALARM/RELEASE ALARM System function/Advanced/Longterm rejection 0 ... 999 s 100 s System function/Advanced/Limit value ambient temp. 0 ... 100 °C 40 °C System function/Advanced/Change relay output BREAKER/CLOSER CLOSER System function/Advanced/Change relay input BREAKER/CLOSER CLOSER System function/Advanced/Reset parameter WARNING DANGER Control functions/PID-control/PID control P-part 0 ... 500 % 50 % Control functions/PID-control/PID control I-part 0 ... 500 % 10 % Control functions/PID-control/PID control D-part 0 ... 500 % 10 % Control functions/PID-control/PID-Optimize ON/OFF ON Control functions/PID-control/control cycle normal 5 … 30 s 8 s Control functions/PID-control/control cycle fast 1 … 10 s 2 s Control functions/Compressor/Switch off point comp. -99.9 ... 99.9 K -2.0 K Control functions/Compressor/Switch on point comp. -99.9 ... 99.9 K -1.0 K Control functions/Compressor/LP-sensor mode REGULAR FUNCTION/

DISABLE SENSOR REGULAR FUNCTION

Control functions/Compressor/HP-sensor mode REGULAR FUNCTION/ DISABLE SENSOR

REGULAR FUNCTION

Control functions/Compressor/Compress. off if HP/LP NO/YES NO Control functions/Compressor/Time out compressor 0 ... 999 s 30 s Control functions/Heating/Swich off point heating -99.9 ... 99.9 K -2.0 K Control functions/Heating/Swicht on point heating -99.9 ... 99.9 K -5.0 K Control functions/Ventilator/Minimum engine speed 0 ... 100 % 50 % Control functions/Ventilator/Temp fan max speed 0 ... 100 °C 40 °C Control functions/Ventilator/Temp fan min speed 0 ... 100 °C 20 °C Control functions/Ventilator/Fan control CONTROLLED/

ALWAYS MAX/ TWO POINT

CONTROLLED

Control functions/Ventilator/Max. temp 0 ... 100 °C 40 °C Control functions/Hot gas valve/Valve cycle 0 … 50 s 10 s Control functions/Hot gas valve/Start on 0 … 100 s 5 s Control functions/Hot gas valve/Operation hours Only read out Control functions/Switch use H./C. contact/Heating contact

HEATING CONTACT/ COOLING CONTACT

HEATING CONTACT

Sensor functions/Correction F1 -9.9 ... 9.9 K 0.0 K Sensor functions/Correction F2 -9 ... 9 K 0 K

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Function Range Default Customer setting

Sensor functions/Correction F3 -9 ... 9 K 0 K Sensor functions/Correction F4 -9.9 ... 9.9 K 0.0 K Pressure func./Switch off output NO/YES NO Pressure func./Starting delay 0 ... 99 s 5 s Pressure func./Upper limit 0.0 ... 99.9 bar 5.0 bar Pressure func./Lower limit 0.0 ... 99.9 bar 1.0 bar Pressure func./Advanced/Pressure sensor 4 mA 0.0 ... 99.9 bar 0.0 bar Pressure func./Advanced/Pressure sensor 20 mA 0.0 ... 99.9 bar 10.0 bar Flow 1 Funct./Lower limit 0.0 ... 99.9 l/min 1.5 l/min Flow 1 Funct./Upper limit 0.0 ... 99.9 l/min 4.5 l/min Flow 1 Funct./Pre alarm flow 0.0 ... 99.9 l/min 2.0 l/min Flow 1 Funct./Starting delay 0 ... 99 s 10 s Flow 1 Funct./Advanced/Signal type DISABLE/TURBINE/

SWITCH DISABLE

Flow 1 Funct./Advanced/Impulse performance 0 ... 9999 Imp/l 1000 Imp/l Flow 1 Funct./Advanced/Switch off output NO/YES NO Flow 1 Funct./Advanced/Error message if off NO/YES NO Flow 2 Funct./Lower limit 0.0 ... 99.9 l/min 1.5 l/min Flow 2 Funct./Upper limit 0.0 ... 99.9 l/min 4.5 l/min Flow 2 Funct./Pre alarm Flow 0.0 ... 99.9 l/min 2.0 l/min Flow 2 Funct./Starting delay 0 ... 99 s 10 s Flow 2 Funct./Advanced/Signal type DISABLE/TURBINE/

SWITCH DISABLE

Flow 2 Funct./Advanced/Impulse performance 0 ... 9999 Imp/l 1000 Imp/l Flow 2 Funct./Advanced/Switch off output NO/YES NO Flow 2 Funct./Advanced/Error message if off NO/YES NO Water temp. Func./Lower set value limit -99.0 ... 32.0 °C 15.0°C Water temp. Func./Upper set value limit 15.0 ... 999.0 °C 32.0 °C Water temp. Func./Warning at .../Analysis ABSOLUTE

ABSOLUTE/RELATIVE ABSOLUTE

Water temp. Func./Warning at .../High temp. warning -99.9 ... 99.9 °C 25 °C Water temp. Func./Warning at .../Low temp. warning -99.9 ... 99.9 °C 15 °C Water temp. Func./Alarm at .../Analysis ABSOLUTE ABSOLUTE/RELATIVE ABSOLUTE Water temp. Func./Alarm at .../High temp. alarm -99.9 ... 99.9 °C 30 °C Water temp. Func./Alarm at .../Low temp. alarm -99.9 ... 99.9 °C 15 °C Water temp. Func./Shut down/Shut down max. water-temp

NO/YES NO

Water temp. Func./Shut down/Shut down temperature

10.0 ... 150.0 °C 50 °C

Water temp. Func./Shut down/Relay F1 0 … 999 s 0 s Water temp. Func./delay high temp. 0 ... 999 s 0 s Water temp. Func./delay low temp. 0 ... 999 s 0 s Water temp. Func./increase value 0.0 … 9.9 °C 0.0 °C Password/Soft-Vers. Only read out Password/Par.-Vers. Only read out Password/Syspar-Vers. Only read out Password/Proc.-Vers. Only read out

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Function Range Default Customer setting

Password/Kali-Vers. Only read out Password/Password user 0 ... 9999 0020 Password/Password technician 0 … 9999 0021 Password/Password administrator 0 … 9999 XXXX Calibration/Analog outputs Calibration/Analog inputs Diagnosis/Digital outputs Diagnosis/Digital inputs Diagnosis/Analog outputs Diagnosis/Analog inputs

2.3.2 Parameter Description Conduct. func./ Alarm conductivity

Conductivity alarm if this limit is exceeded. The corresponding message appears on the display and the according relay output switches.

Pre alarm conductivity Alarm if this limit is exceeded („cooling contact with hysteris 1mS“).The corresponding message appears on the display.

Alarm delay The conductiviy alarm will be surpressed for the set time in case of a error.

Conductivity valve-off Switching point ventile OFF if enable.

Conductivity valve-on Switching point ventile ON if enable.

System function/Advanced/

Error relay Alarm relay: closed in case of alarm. Release relay: closed if no alarm and the controller is on.

Longterm rejection All Alarm messages are surpressed for the set time if the filling mode is active.

Limit value ambient temp. Alarm limit value for the ambient temperature. The according relay output switches n case of alarm.

Change relay output The switch use of the outputs can be inverted here.

Change relay input The switch use of the inputs can be inverted here.

Reset parameter WARNING DANGER Reset parameter to factory settings. All edited settings made by you and by Termotek will be lost!

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Control functions/PID-control/

PID control P-part Proportional part

PID control I-part Integral part

PID control D-part Derivative part

PID-optimizing Optimizes the PID – values. These values will be used at next start.

Control cycle normal Interval time of hot gas valve between two cycles.

Control cycle fast Interval time of hot gas valve between two cycles.

Control functions/Compressor/

Compressor switch off point Compressor switch on point

Switching limits for compressor contact (relative to set value). LP-sensor mode

Low pressure switch for cooling circuit. HP-sensor mode

High pressure switch for cooling circuit. Compressor off at HP/NP

Choose YES if the compressor should be switched off in case of high/low pressure alarm. Time out compressor

Restarting the compressor is disabled for this defined period. An according message appears on the display.

Control functions/Heating/

Switch off point heating Switch on point heating

Switching limits for the heating. Control functions/Ventilator/

Minimum engine speed This speed defines the minimum speed of fan operation unless the controller is disabled.

Temp max engine speed Temp min engine speed

This defines the temperature control range for the fan speed. Ventilator control

Either the fan runs with full speed or the fan is controlled by ventilator control. An additional switch off/on point can be set.

Max. temp Temperature limit, the message „clean condensor“ appears on the display if exceeded.

Control functions/Switch use H./C. contact/

Heating contact Switches the hot gas valve, heating or cooling.

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Sensor functions/ Correction F1 (water temperature) Correction F2 (ambient temperaturer) Correction F3 (exhaust air temperature) Correction F4 (inlet temperature)

Adjust sensor inlet F1 – F4. Pressure func./ Switch off output

The chiller will be switched off in case of HP/LP alarm if enable. Starting delay

Maximum period of time which may pass from starting the compressor until the minimum pressure is established.

Upper limit Lower limit

Pressure alarm will be set off if pressure leaves these limits. Output will be switched off (Pressure func./Switch off output) if enabled.

Pressure func./Advanced/

Pressure sensor 4 mA Pressure sensor 20 mA

Calibration Flow ½ funct./ Lower limit

The flow alarm will be set off in case of falling below the limit (after end of starting delay). Upper limit

The flow alarm will be set off in case of exceeding the limit (after end of starting delay).Der Pre alarm flow

If flow falls below this value, a flow warning will be released via the display and the interface. Starting delay

Maximum period of time which may pass from starting the pump until the minimum flow is established.

Flow ½ funct./Advanced/

Signal type DISABLE switched off TURBINE pulse interpretation SCHALTER digital input

Impulse performance Calibration of flow sensor: How many pulses per litre?

Switch off output The output will be switched off in case of quitting the reference between lower and upper limit if enable.

Error message while off Flow alarm when the chiller is switched off.

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Water temp. Func./ Lower set value limit

Lowest adjustable limit for set temperature. Upper set value limit

Highest adjustable limit for set temperature. Water temp. Func./Warning at .../

Analysis ABSOLUTE

High temp. warning Definition of temperature warning, the warning will be released via the display and the interface.

Low temp. warning Definition of temperature warning, the warning will be released via the display and the interface.

Water temp. Func./Alarm at .../

Analysis ABSOLUTE

High temp. alarm Definition of temperature alarm, the alarm will be released via the display and the interface. Output will be switched off.

Low temp. alarm Definition of temperature alarm, the alarm will be released via the display and the interface. Output will be switched off.

Water temp. Func./Shut down/

Shut down max. water-temperature The chiller will be switched off if the shut down temperature is exceeded.

Shut down temperature Definition of shut down temperature.

Water temp. Func./ Delay high temp.

Maximum period of time which may pass from starting the chiller until the excess temperature is exceeded.

Delay low temp. Maximum period of time which may pass from starting the chiller until the insufficient temperature is under-run.

Increase value This value is added to the max. ambient temperature. When the ambient temperature > this value, the set point will be increased proportionally.

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Password/ Soft-Vers.

Actual software version Par. Vers.

Actual parameter version Syspar-Vers.

Actual system-parameter version Proc.-Vers.

System information Kali-Vers.

System information Password user

Change user password Password technician

Change technician password Password administrator

Change administrator password

Calibration/ Analog outputs Analog inputs Diagnosis/ Digital outputs Digital inputs Analog outputs Analog inputs

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2.4. Fourth Programming Level (Administrator-Level)

For some paramters you have to enter the administrator-password. The third programming level is on the same kind reachable as the second and third one.

2.4.1 Adjustable Parameters Function Range Default Customer

setting Conduct. func./Advanced/Conductivity control DISABLE/ENABLE ENABLE Conduct. func./Advanced/Conductivity measuring DISABLE/ENABLE ENABLE Conduct. func./Advanced/Rinse start temp. -35 … 99 °C 40 °C Conduct. func./Advanced/Interval rinsing 0 … 999 s 0 s Conduct. func./Advanced/Duration rinsing 0 … 999 s 0 s System function/Operation hour/Part RESET System function/Operation hour/Complete RESET System function/Advanced/Advanced/Cooling power monitoring

DISABLE/TURBINE 1/ TURBINE 2/ TURBINE 1+2

DISABLE

System function/Advanced/Advanced/Switch off max. ambient temp.

OFF/ON OFF

System function/Advanced/Advanced/Prop valve NO/YES NO Control functions/Compressor/Hours op. RESET Control functions/Heating/Hours op. RESET Control functions/Hot gas valve/Hours op. RESET Control functions/Pump/Hours op. RESET Sensor functions/Switch off F2 DISABLE SENSOR/

REGULAR FUNCTION

REGULAR FUNCTION

Sensor functions/Switch off F3 DISABLE SENSOR/ REGULAR FUNCTION

REGULAR FUNCTION

Sensor functions/Switch off F4 DISABLE SENSOR/ REGULAR FUNCTION

REGULAR FUNCTION

Pressure func./Advanced/Pressure gauge DISABLE/ENABLE ENABLE

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2.4.2 Parameter Description Conduct. func./Advanced/

Conductivity control Enables conductivity control

Conductivity measuring Enables conductivity measuring

Rinse start temp. When this temperature is reached, the rinsing of the de-ionising cartridge will be started. Only possible with DI – control.

Interval rinsing Interval between two rinsing sequences

Duration rinsing Duration of a rinsing sequence

System function/Operation hour/

Part

Complete

Reset the operation hour of the chiller. System function/Advanced/Advanced/

Cooling power monitoring The performed cooling power is affected by the difference between in- and outlet temperature and flow. Can be disabled or enabled.

Switch off max ambient temp. The chiller will be switched off if the ambient temperture limit is exceeded. (Control functions/Ventilator/Max. temp). Can be disabled or enabled.

Proportional valve If enabled, a PWM – signal will be send from the CCC. It will be analyzed by an external flat module and converted into a 0 – 10 V signal.

Control functions/Compressor/

Hours op. Reset operation hours of compressor (for example at replacement).

Control functions/Heating/

Hours op. Reset operation hours of heating (for example at replacement).

Control functions/Heissgas-Ventil/

Hours op. Reset operation hours of hot gas valve (for example at replacement).

Control functions/Pumpe/

Hours op. Reset operation hours of pump (for example at replacement).

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Sensor functions/ Switch off F2

If the sensor inlet (normally ambient temperature sensor) is not required it can be switched off. In this case it is set to 20.0 °C internally (unattached of a eventually mounted sensor).

Switch off F3 If the sensor inlet (normally condensor block temperature sensor) is not required it can be switched off. In this case it is set to 20.0 °C internally (unattached of a eventually mounted sensor).

Switch off F4 If the sensor inlet (normally inlet temperature sensor) is not required it can be switched off. In this case it is set to 20.0 °C internally (unattached of a eventually mounted sensor).

Pressure func./Advanced/

Pressure gauge Can be disabled or enabled.

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Circuit diagram



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3. Circuit diagram

Picture 3-1

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Evolution



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4. Evolution pos date version change 01 2006 V067 Software update 02 03 04 05

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Parameter via RS232 - interface



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5. Parameter via RS232 ‐ interface Please ask for your parameter sheet at TERMOTEK AG. We need the type designation and the serial number. Please hold them ready. We will send you a RS232 – protocol if required. Request of warning and alarm signals via <<STAT_Message>>

bit description 0 OK 1 Warning water level 2 Warning flow 1 3 Warning flow 2 4 Warning conductivity 5 Warning high tempterature 6 Warning low temperature 7 Temperature condensor block too high 8 Alarm 9 Alarm high temperature 10 Alarm low temperature 11 F2 – error (normally ambient temperature sensor) 12 F3 – error (normally condensor block temperature sensor) 13 F4 – error (normally inlet temperature sensor) 14 Error refrigerant ciruit 15 High pressure refrigerant circuit 16 Low pressure refrigerant circuit 17 Error water circuit 18 Alarm water level 19 Alarm ambient temperature 20 Alarm conductivity 21 Alarm flow 1 too low 22 Alarm flow 2 too low 23 Alarm flow 1 too high 24 Alarm flow 2 too high 25 Alarm high temperature 26 Alarm high pressure water circuit 27 Alarm low pressure water circuit 28 F1 – error (normally water circuit temperature sensor)

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Request of measured values (if required options are installed) Flow 1 (l/min) (actual value)

Element Offset Length/Bit Description Unit/Selections

IO: Wasserkrei_DFL1_AI _Fluss

44 2 Flow 1 l/min

Flow 2 (l/min) (actual value)


IO: Wasserkrei_DFL2_AI _Fluss

50 2 Flow 2 l/min

Conductivity (μS) (actual value)


IO: Wasserkrei_Leitwert_ AI_Leitwert

56 2 Conductivity μS

Cooling power (W) (actual value)

Element Offset Length/Bit Description Unit/Selections Flag PKuehl 268 2 Cooling power kW

Set temperature (°C) (read/set)

Element Offset Length/Bit Description Unit/Selections Prozeß‐daten:

Wasserkrei_Wassertemp _PAR_TSollwert

28 2 Set value °C

Inlet temperature (°C) (actual value)


Flag: Wasserkrei_Wassertemp_ AI_TRuecklauf

134 2 Inlet temperature °C

Outlet temperature (°C) (actual value)


Flag: Wasserkrei_Wassertemp_ AI_TVorlaufEx

132 2 Outlet ‐ raw °C

Water pressure (Bar) (actual value)


Flag: Wasserkrei_Druck_AI_ Druck

66 2 Pressure bar

Remote start

Element Offset Length/Bit Description Unit/Selections IO: SysFkt_DI_Extern 1 Bit 0 Remote start 0 = OFF, 1 = ON

Read parameter/communication with controller

• Set the set temperature via „process data“. See „controller communication“ protocol chapter 3.7

• The actual values (status data) can be read via „ask for status data“. See “controller communication” protocol chapter 3.3

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Examples

red are the special data of your command (use these) the checksum will be calculated by your transmit routine

For more information and examples see protocol „controller communication“.

Set set temperature (e. g. 21.0 °C) Host CCC (commando „set process data“)

Name Offset dez

Value hex

Description

LEN 0 0C Command-/reference data length byte DST 1 01 Destination adress SRC 2 00 Source adress CMD1 3 91 Command byte 1 CMD2 4 00 Command byte 2

Offset (long) 5‐8 12 00 00 00 32bit-number, defines the offset within the parameter block

Wert (long) 9‐12 D2 00 00 00 32bit-number, contains the value to set t Länge (long) 13‐16 02 00 00 00 32bit-number, defines the length of the

value (byte = 1, short = 2, long = 4) CHKSUM 17 ## Checksum byte (if not calculated: 26h)

Host CCC 0AAh(= correct checksum) within 0.2 s

(no reponse)

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Auslesen der IST‐Wassertemperatur Host CCC (request status data partial [here FLAG‐data])

Name Offset dez

Valuehex

Description

LEN 0 03 Command-/reference data length byte DST 1 01 Destination adress SRC 2 00 Source adress CMD1 3 13 Command byte 1 CMD2 4 02 Command byte 2

tt = 01h: of IO‐data tt = 02h: of Flag‐ data tt = 03h: of Parameter‐ data tt = 04h: of System‐ data tt = 05h: of Process‐ data

OFFSET_L 5 82 Offset, low order byte OFFSET_H 6 00 Offset, high order byte LENGTH 7 02 Number of retransfered bytes (< 240) CHKSUM 8 ## Checksum byte (if not calculated: 0Dh)

Host CCC 0AAh (= correct checksum) within 0.2 s Host CCC (data / value answer)

Name Offset dez

Valuehex

Description

LEN 0 nn Reference data length byte (you may ignore)

DST 1 00 Destination adress (you may ignore) SRC 2 01 Source adress (you may ignore) CMD1 3 13 Command byte 1 (you may ignore) CMD2 4 02 Command byte 2 (you may ignore)

REQ‐DATA 5‐6 LL HH

temperatur *10 (16 Bit‐value, low byte first)

CHKSUM 7 ## Checksum byte (you may ignore)

Example: 25.0 °C, LL HH is (FAh 00h)

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Read set temperature Host CCC (request status data partial [here process‐data])

Name Offset dez

Valuehex

Description

LEN 0 3 Command-/reference data length byte DST 1 01 Destination adress SRC 2 00 Source adress CMD1 3 13 Command byte 1 CMD2 4 05 Command byte 2

tt = 01h: of IO‐data tt = 02h: of Flag‐ data tt = 03h: of Parameter‐ data tt = 04h: of System‐ data tt = 05h: of Process‐ data

OFFSET_L 5 12 Offset, low order byte OFFSET_H 6 00 Offset, high order byte LENGTH 7 02 Number of retransfered bytes (< 240) CHKSUM 8 ## Checksum byte (if not calculated: 0Dh)

Host CCC 0AAh (= correct checksum) within 0.2 s Host CCC (data / value answer)

Name Offset dez

Valuehex

Description

LEN 0 nn Reference data length byte (you may ignore)

DST 1 00 Destination adress (you may ignore) SRC 2 01 Source adress (you may ignore) CMD1 3 13 Command byte 1 (you may ignore) CMD2 4 05 Command byte 2 (you may ignore)

REQ‐DATA 5‐6 LL HH

temperatur *10 (16 Bit‐value, low byte first)

CHKSUM 7 ## Checksum byte (you may ignore)

Example: 25.0 °C, LL HH is (FAh 00h)

V 1.1 6.

F. A. Q.



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6. F. A. Q. Please try to solve your problems with this F.A.Q. bevor contacting TERMOTEK. My computer does not communicate with the TERMOTEK chiller via the visualisation software

1. Check the connection between the chiller (RS232 – connector and the computer. 2. Check that the computer uses the correct interface (normally COM 1 or COM 2). These must

be adjusted in the visualisation software.

3. The TERMOTEK chiller is delivered with an interface speed of 38,400 Baud normally, the computer is set to 9,600 Baud mostly. You can change the speed via system control as follows:

1

2

V 1.1 6.

F. A. Q.



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3

4

5

You can change the interface speed at the chiller at system functions/baudrate. TERMOTEK suggest to change the speed at your computer.

I want to use my own software to enable/disable the chiller. Which command have I to use?

IOs: Element Offset Length/Bit Description Unit/Selections SysFkt_DI_Extern 1 Bit 0 Remote start 0 = OFF, 1 = ON

Two parameters for the output of the water temperature are available (<<Wasserkrei_Wassertemp‐AI‐TVorlaufRohEx>> at IOs and <<Wasserkrei_Wassertemp_AI_TVorlaufEx>> at flags) Both transmit a reasonnable value. What is the difference?

<<Wasserkrei_Wassertemp_AI_TVorlaufEx>> is eventually admit with an additional ajustment value. Calibrations will affect then.

We want to read all warnings, errors and alarms. How?

Read these via <<STAT_message>>. See chapter 5 for a description of this parameter.

Documents

PID-controll-unit for Termotek Laserkühlung · CENTRAL CHILLERCONTROLL 3 PID-controll-unit for Termotek Laserkühlung . V 1.1 Hardbergstraße 9 Phone: +49(0)7222/50 58-0 – Fax: