VDH PROBA 50 User manual

Brand: VDH

Model: PROBA 50

Type: User manual

User Manual PROBA 50 - English Doc.no.: 951573

Version: V1.3

Software: 000498 PROBA50 Version: V1.05

File: DO951573.HND

By: AAD Date: 07-03-2012

VDH Products BV - Roden - Holland Signed: Pages: 26

PROBA 50

User manual

(Wall- and Panel-mounting)

VDH Products BV Document 951573 - Version 1.3 Blad: 2 of 26

Disclaimer

The information contained in this document is assumed to be accurate. However VDH Products BV accepts no liability for

eventual mistakes or errors and has the right to change this document without notice.

No part of this document may be reproduced without the prior written permission of VDH Products BV.

Trademarks

'PROBA' is a trademark of VDH Products BV.

Edition

3st edition, March 2012

It is highly recommended to study the operation

of the PROBA ripening system carefully before

using it.

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Table of contents

1Introduction ................................................................................. 4

1.1 Setup of the PROBA ripening system ..................................................... 4

1.2 Operation of the PROBA ripening system .................................................. 4

1.3 Method of temperature control ........................................................... 5

2The PROBA 50 .............................................................................. 5

2.1 Control of the PROBA 50 ............................................................... 5

2.1.1 Switching the PROBA 50 ON and OFF ............................................ 5

2.1.2 Readout temperature, clock, sensors and setpoints .................................. 6

2.1.3 Programming and starting a ripening program ....................................... 6

2.1.4 Stopping a ripening program .................................................... 8

2.1.5 Changing the temperature setpoint ............................................... 8

2.1.6 Standby .................................................................... 9

2.1.7 Starting and stopping the gassing ................................................ 9

2.1.8 Starting and stopping the ventilation ............................................. 10

2.1.9 Stepping a program .......................................................... 11

2.1.10 Heating on/off switch ......................................................... 11

2.1.11 Switching sensors on/off ....................................................... 12

2.2 Adjustment of the PROBA50 ........................................................... 13

2.3 Regulation characteristics of the PROBA 50 ............................................... 14

2.4 Alarms and warnings of the PROBA 50 ................................................... 15

2.5 Error messages ..................................................................... 16

3 Datalogger ................................................................................. 17

Appendix A (Error messages) ......................................................................... 18

Appendix B (Internal Parameters) ...................................................................... 19

Appendix C (Technical Specifications) ................................................................... 21

Appendix D (Frontview PROBA50) ..................................................................... 22

Appendix E (Connection diagram PROBA50) ............................................................. 23

Appendix F (Dimensions PROBA50) .................................................................... 25

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1 Introduction

1.1 Setup of the PROBA ripening system

The PROBA 50 Ripening System provides a solution for the automated ripening of bananas. The system measures

and controls independently the temperature in the ripening room. Ventilation of the bananas is also controlled by the

system.

During a period of several days the system is capable of controlling one or more ripening rooms in such a way that

the fruit can be removed perfectly ripened from the rooms at the end of the ripening cycle.

The ripening room is fully controlled by the PROBA 50 computer. This steps through a ripening program

independently and can be controlled by the user via the front panel.

1.2 Operation of the PROBA ripening system

Bananas in the ripening room are ripened by means of ripening programs. In the PROBA ripening system the length

of these programs and the temperatures are adjusted each day. The ripener can make a choice from 10 different

ripening programs in each PROBA 50.

The course of the temperature is setup by means of temperature setpoints, one for each day. During the execution of

the program the temperature is checked and controlled by the PROBA 50 in such a way that the fruit is ripened

according to the requirements of the user.

The PROBA 50 is also able to control the application of gas during the ripening program. The duration of the

gasification is adjustable. During this period the PROBA 50 will indicate that gas is present in the ripening room.

During the ripening process the bananas can be ventilated. The length and interval of the ventilation are adjustable.

During gassing periods the ventilation is blocked. The PROBA 50 indicates when the room is being ventilated.

At the end of a ripening program the PROBA 50 switches over to the so-called STANDBY mode. The temperature

regulation continues on the STANDBY setpoint which ensures that the ripened product remains in a controlled

environment.

At any moment during the ripening program the temperature setpoint, which is used by the PROBA 50 at that

moment, can be changed (when the LED above the KEY button is on). The ripening program can also be changed

into STANDBY mode or stopped anytime by the user.

A ripening program can be displayed schematically as follows:

During a number of days (the length of the program, in this case is 4) a temperature setpoint is entered for each day.

On a given day, the PROBA 50 regulates the temperature in the ripening room to be equal or close to that particular

value. The length of a ripening program can be varied from 4 to 8 days (fixed length program numbers 1 to 5) or from

1 to 9 days (the length of the programs 6 to 10 are fully adjustable).

After setting up and starting a program the PROBA 50 starts at day 1. In the example the temperature setpoint is

now 18.0C, so the PROBA 50 regulates the temperature to become 18.0C. At the end of each day (24 hours) the

temperature setpoint is changed into that of the next day of the program. After all days of the program are past, the

PROBA 50 goes to the STANDBY mode. The STANDBY temperature is also adjusted in the ripening program. The

STANDBY mode remains active until the user stops the ripening program or starts a new one.

Finally a warming-up phase can take place before the ripening program starts. For convenience this precursion time

is called day 0. The length of precursion time is variable.

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1.3 Method of temperature control

Up to four temperature sensors can be connected to the PROBA 50.

It makes use of three product sensors which are placed in the boxes with the bananas (pulp temperature). These are

the product sensors type SM8500 which are connected via the coiled leads to the connection boxes. The

temperature is controlled on the average of the present and active product sensors.

In addition, an air temperature alarm sensor, type SM8000/2m, can be connected. This sensor controls the minimum

and maximum temperature of the airflow coming out of the evaporator. The evaporator can be temporarily switched

off if the alarm levels are exceeded.

Via a setting in the internal parameters the method of control can be selected, at which product sensor 3 is replaced

by an air temperature sensor type SM800/2m. During the warming-up phase (day 0) the temperature is controlled by

sensor 3. When the warming-up phase is passed, the temperature is controlled on the average of sensor 1 and 2.

2The PROBA 50

2.1 Control of the PROBA 50

The control computer PROBA 50 can be controlled fully via its front panel and has a number of control and display

features:

* Push buttons,

* Displays,

* LED's.

The control can be distinguished in:

* Readout of the sensor values,

* Change of setpoint(s),

* Programming and starting of regulation,

* Programming of control parameters and alarms.

Function of the LED's:

M 1 Indicates if sensor 1 is active. Flashes if sensor 1 is read-out.

M 2 Indicates if sensor 2 is active. Flashes if sensor 2 is read-out.

M 3 Indicates if sensor 3 is active. Flashes if sensor 3 is read-out.

M 4 Indicates if sensor 4 is active. Flashes if sensor 4 is read-out.

ALARM Lights in case of an error.

COOL Displays if the cooling is switched on.

HEAT Displays if the heating is switched on.

GAS Lights constantly if gas flows into the ripening room. Flashes if gas is present in the

ripening room.

VENT Lights during ventilation of the ripening room.

In general a flashing LED means that a function is active.

2.1.1 Switching the PROBA 50 ON and OFF

By pressing the ON/OFF key the PROBA 50 is switched on or off.

If the PROBA 50 is switched off, the control will stop immediately.

If the PROBA 50 is switched on, all settings can be displayed.

To change settings, a 4-digit security has to be entered.

Press the KEY button. The display shows the text 'Code'. By use of

combination of keys on the bottom row a code can be entered.

If the code is correct, the LED above the KEY button will light and settings can

be changed. The lock is open.

By pressing the KEY button again, the LED above the KEY button will

extinguish and it is not possoble to change the settings. The lock is closed.

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2.1.2 Readout temperature, clock, sensors and setpoints

The display in the top left shows the temperature in the ripening room. This

temperature is the average of the sensors 1, 2 and 3 (if these are active).

The display in the bottom left shows the present temperature setpoint.

The display in the top right shows the program clock, which indicates how long

the program has run in the present day. In this example 15 hours and 24

minutes.

The display in the bottom right shows the length and present day of the

program. In this example a 5 day program, which is now in day 3.

Press the PROG key. The LED above the key starts flashing. When a

program is in progress, the number of that program is shown in the display. By

pressing the PROG key once more, the average temperature is shown again

in the display. The LED above the PROG key will extinguish.

Press the SENS key. The LED above the key starts flashing indicating that

this function is active. The temperature of the first sensor is shown. Press the

SENS key again and the temperature of the next sensor is shown.

All present sensors are shown, also the non active sensors.

After the temperatures there is an indication if the heating can switch on

(HEAT ON) or not (HEAT OFF).

After the measured values of all sensors have been displayed, pressing the

SENS key once again will bring the PROBA 50 back into its normal working

condition. The SENS-LED goes off and the average temperature is shown

again in the display.

The PROBA 50 will switch to the normal working condition if within 30

seconds no key is touched.

2.1.3 Programming and starting a ripening program

Make sure that the LED above the KEY button is on, so that changes are

allowed.

Press the PROG key. The LED above this key starts flashing to indicate

programming is in progress.

In the temperature display the program number flashes. The length of the

program is shown in the DAY display.

The ripening program number (here number 3) can be changed by means of

the UP and DOWN keys.

By pressing the SET key the selected number is accepted.

The number of days of programs 1 to 5 is fixed (4 days with program number

1 and soon to 8 days with program number 5).

If one of the programs 6 to 10 is selected, the number of days can be selected

in addition to temperature.

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The number of days of this program can now be selected and is shown in the

DAY display. The length can vary from 1 to 9 days.

With the UP and DOWN keys the length of the program can be changed.

Acknowledge the number of days with the SET key.

From this point on setting up of programs 6 to 10 is the same as setting up

programs 1 to 5.

During the first day of the ripening program the fruit can be gassed. With the

UP and DOWN keys the user can select gasification ('G. on') or no gasification

('G.oFF'). The GAS LED also flashes.

Press the SET key if the setting is right.

Ventilation of the ripening rooms can now be adjusted. The VENT LED

flashes.

The ventilation time and the frequency of the ventilation can be set in the

Internal Adjustments.

During the gasification period ventilation is blocked. As soon as the

gasification period is ended, ventilation starts immediately.

Change the adjustment with the UP and DOWN keys.

Acknowledge selection with the SET key.

The setting of the temperatures of the ripening program now follow. For every

day a temperature can be selected.The DAY display indicates which day is

being set, while the temperature display shows the desired value (setpoint).

The value can be changed with the UP and DOWN keys.

When the value is correct, press the SET key.

Repeat the last steps for all days of the ripening program.

The STANDBY temperature (setpoint after finishing the actual ripening) is set

while the STANDBY LED lights. Changing of this value is done in the same

manner as adjustment of other setpoints (UP and DOWN keys and the SET

key).

Finally a delay time can be set before the actual ripening program starts. This

period is called day 0. Therefore the 0 lights in the DAY display.

By pressing the UP and DOWN keys and the SET key a delay time in hours

can be set.

If the delay time is 0 hours, the program will start directly.

When a delay time of more than 0 hours is programmed, the temperature

setpoint for day 0 can be adjusted with the UP and DOWN keys and

acknowledged with the SET key.

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By pressing the SET key for the last time, the ripening program will start. The

PROG LED lights to indicate that the ripening program is in progress and the

fruit is being ripened.

Please note:

During day 0 the PROBA 50 will, if selected, start with ventilation and regulate

the temperature. If the delay time is finished, the ripening program will step to

day 1 and continue the program.

The program clock will count down to 00.00 hours in day 0. The program

steps to day 1 and the clock will count from 00.00 hours.

While programming programs 1 to 5, the PROBA 50 will use the pre-

programmed ripening programs as default.

While programming programs 6 to 10, the PROBA 50 will use the

temperatures of the last ripening program used.

If ripening programs 6 to 10 are adjusted during programming or during the

ripening process, these changed values are default settings for the next time

the program is used.

Programming can be interupted at any time by pressing the PROG key. The

PROG LED will stop flashing and programming will not have any effect.

If during programming no key has been pressed for more than 30 seconds,

programming will be interrupted and changes are not made.

2.1.4 Stopping a ripening program

Make sure the LED above the KEY button is on.

By pressing the STANDBY key, the program is forced into the STANDBY

mode. The STANDBY LED above this key lights.

Because of this the ripening program will regulate for unlimited time on the

STANDBY temperature setpoint. If selected, the ventilation times will be taken

into account. The PROG LED does not light anymore.

By pressing the STANDBY key once more, the STANDBY mode is switched

off and the PROBA 50 stops regulating.

The temperature regulation stops, the ripening room will not be kept on a

constant temperature. Also the STANDBY LED does not light anymore.

2.1.5 Changing the temperature setpoint

To allow the ripener to adapt the ripening program whilst it is running, it is

possible to change the setpoint of the current day. This is only possible when

the PROG or the STANDBY LED are lit, which shows that the PROBA 50 is

regulating.

Make sure the LED above the KEY button is on.

Press the SETPOINT key. The present temperature setpoint starts to flash.

The value can be changed with the UP and DOWN keys.

Press the SET key to acknowlegde the adjustment.

The temperature setpoint of one of the other days can also be changed.

Press the SETPOINT key so that the present temperature setpoint flashes.

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By simultaneously pressing the DAY-key and the UP- or DOWN-

key, another day can be selected. The setpoint for this day will

appear in the setpoint display.

Using the UP- and DOWN-keys the setpoint can be changed.

Press the SETPOINT-key to exit the setting.

2.1.6 Standby

In the STANDBY mode the PROBA 50 will regulate for unlimited time on a

fixed setpoint temperature in the ripening room.

This STANDBY mode for example can be used if products other than

bananas are stored in the ripening room.

Make sure the LED above the KEY button is on.

Press the STANDBY key to switch to the STANDBY mode. The LED above

the STANDBY key will light.

Now the temperature will be regulated for an unlimited time on the last

programmed STANDBY setpoint.

The setpoint can be adjusted as described in chapter '2.1.5. Changing the

temperature setpoint' (see page 8).

By pressing the STANDBY key once more, the STANDBY mode is switched

off.

The temperature regulation will stop, the ripening room will not be kept at a

constant temperature. Also the STANDBY LED will not illuminated.

2.1.7 Starting and stopping the gassing

It is possible to stop the gasification during a gassing period.

Make sure the LED above the KEY button is on.

Press the GAS key.

The display shows the text 'GAS' and 'StOP'.

If gasification is not to be stopped, press the GAS key. The average

temperature shows in the display again.

Press the SET key to stop the gasification period. The LED GAS will

extinguish to indicate that gasification has stopped.

During the ripening program it is possible to insert (once again) a gassing

period.

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Press the GAS key.

The display shows the text 'GAS' and 'on'.

If gasification is not to be started, press the GAS key. The average

temperature shows in the display again.

Press the SET key to start the gasification period. The LED GAS will light to

indicate that gasification is active.

2.1.8 Starting and stopping the ventilation

If there is ventilation, this can be stopped in the following manner.

Make sure the LED above the KEY button is on.

Press the VENT key.

The display shows the text 'VENt' and 'StOP'.

If ventilation is not to be stopped, press the VENT key once more.

Press the SET key to stop ventilation. The VENT LED will extinguish

indicating that ventilation has stopped.

If there is no ventilation, this can be started.

Press the VENT key.

The display shows the text 'VENt' and ' on'.

Press the VENT key once more if ventilation is not to be started.

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Press the SET key to start ventilation. The VENT LED will light to indicate that

ventilation is active.

When the ventilation is actived in this manner, the system will commands a

cycle which is pre-programmed into the Interal Settings, e.g. 20 minutes every

12 hours (if the gas cycle is activated, ventilation will stop and then continues

automatically after gassing).

2.1.9 Stepping a program

During the course of a ripening program, it is possible to change the program

clock or the day in which the PROBA 50 is running. We call this 'Stepping' a

program. With this 'Stepping' the length of a program can be made shorter by

stepping forward or longer by stepping back.

Make sure the LED above the KEY button is on.

Press the TIME key. The program clock flashes.

The time can be changed using the UP and DOWN keys.

Press the TIME key to confirm the new setting.

Press the DAY key. The day number flashes.

The day number can be changed using the UP and DOWN keys.

Press the DAY key to confirm the selected day.

Please note:

It is not possible to step from a program to STANDBY. This is only possible by

pressing the STANDBY key.

Nor is it possible to step from STANDBY back into a program.

2.1.10 Heating on/off switch

The PROBA 50 offers the option to switch off the heating. During temperature

control there will only be cooling. If the temperature is lower than the setpoint,

the heating will not switch on.

Make sure the LED above the KEY button is on, so that changes are allowed.

Press the SENS-key until the text 'HEAT ON' or 'HEAT OFF' appears in the

display.

Press the SET key to change from ON to OFF or reverse.

Press the SENS key once more, so that the average value of the temperature

sensors appears in the display again.

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2.1.11 Switching sensors on/off

The user has the possibility to switch present sensors on or off.

Sensors which are switched on will be used for the regulation, sensors which

are switched off not. This can be useful e.g. if one of the sensors should not

be used for calculation of the temperature. Also a sensor which does not

measure correctly can be switched off. Illuminated LED's indicate which

temperature sensors are active.

Make sure the LED above the KEY button is on, so that changes are possible.

Press the SENS key and then the PROG key. The LED's above these keys

start flashing to indicate that this function is active.

The display shows 'S1.on'. The flashing number (in this case '1'), indicates the

number of the first sensor.

Select a sensor with the UP and DOWN keys. The display shows whether the

sensor is ON or OFF:

'on' if it is switched on,

'OF' if it is switched off.

By pressing the SET key the status of the sensor can be changed from ON to

OFF or vice versa.

With the UP and DOWN keys all present temperature sensors can be

switched ON or OFF in this way.

Finish switching sensors on/off by pressing the SENS key.

Please note:

If only one temperature sensor is switched on, the PROBA 50 does not allow

the user to switch this sensor off. If this sensor needs to be switched off, the

user needs to switch another sensor on first.

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2.2 Adjustment of the PROBA50

The PROBA 50 regulates and detects failures, dependant upon a number of

parameters which can be set by the installer or the user:

*regulation characteristics

* alarms/warnings

* default ripening programs

* gassing and ventilation

Normally these settings do not have to be changed daily. This is why they are

more difficult to access than e.g. the starting or stopping of a ripening program

or the changing of a setpoint.

We call changing of these settings we call 'Internal Programming'.

The PROBA 50 can be brought into this Internal Programming mode by

simultaneously pressing the SET and KEY buttons. Start by pressing the SET

key; then the KEY key.

Since most of the settings in the Interal Programming affect the regulation

characterisics of the PROBA 50, all controls are inactive, for as long as the

PROBA 50 is in the Internal Programming mode.

In Appendix B all parameters are shown.

The text 'iP--' appears in the display. The horizontal bar moves between the

third and fourth position. Keep both buttons pressed for two seconds and the

bar disappears.

Release the two keys.

The temperature display shows the text 'P 1'. This is the first parameter. The

value of this parameter is shown in the setpoint display.

Use the UP and DOWN keys to choose the various parameters.

By simultaneously pressing the SET key and the UP or DOWN key, the value

of the parameter can be changed.

End the 'Internal Programming' by pressing the PROG button.

If during the Internal Programming no key is pressed for 60 seconds, the

PROBA 50 stops programming and returns to it's previous state. The settings

which were changed will not be stored in the memory.

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2.3 Regulation characteristics of the PROBA 50

Description Min. Max. Step

Cooling Differential 0.1°C 20.0°C 0.1°C

Cooling Offset -20.0°C +20.0°C 0.1°C

Heating Differential 0.1°C 20.0°C 0.1°C

Heating Offset -20.0°C +20.0°C 0.1°C

Gas Supply Time 0 min 500 min 1 min

Total Gassing Time 0 hrs 99 hrs 1 hrs

Ventilation Time 0 min 240 min 1 min

Ventilation Interval 1 hrs 24 hrs 1 hrs

The two controls (Cooling and Heating) operate in such a way that the corresponding relays switch off at the

setpoint. If the measured value differs more than the differential (hysterisis) from the setpoint, the relay switches on.

This is assuming that for cooling and heating there is no offset.

If there is an offset, the effective setpoint (which is used for regulation) shifts with the offset value relative to the

setpoint.

The following values are default values set at the factory:

Adjustment Value

Cooling Differential 0.2°C

Cooling Offset -0.1°C

Heating Differential 0.2°C

Heating Offset -0.6°C

The resulting characteristics of the heating and cooling controls are:

Please note:

When changing differentials and offsets of cooling and heating, the PROBA 50 ensures that no situations arise with

which it is possible that cooling and heating are switched on at the same time. In case the user tries to change the

parameter in this way, the PROBA 50 signals and the faulty adjustment is blocked.

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2.4 Alarms and warnings of the PROBA 50

Alarms and warnings are adjustable within the following parameters:

Description Min. Max.

Absolute Maximum Temperature Alarm -10.0°C +40.0°C

Absolute Minimum Temperature Alarm -10.0°C +40.0°C

Delay Relative Temperature Warning 0 min 99 min

Relative Maximum Temperature Warning 0.0°C +40.0°C

Relative Minimum Temperature Warning -40.0°C 0.0°C

Maximum Air Temperature -10.0°C +40.0°C

Minimum Air Temperature -10.0°C +40.0°C

All active temperature sensors are continuously checked for exceeding the absolute temperature limits. If that

happens, a Fatal Alarm will follow.

There are also relative temperature limits. These are linked to the current temperature setpoint. If the setpoint

changes, these limits change by the same amount. These alarms can be delayed.

Example: Temperature setpoint = 16.0°C; Relative Maximum Alarm = +4.0°C; The limit of the Relative Maximum

Alarm is at 20.0°C. As soon as one of the sensors goes above 20.0°C, a delay timer is started. If the temperature

remains higher than 20.0°C during the set time, a Non Fatal Alarm is triggered.

If sensor 4, the air temperature alarm sensor, is connected and measures a temperature which is above the

Maximum Air Temperature Alarm, the heating relay is blocked and released again if the air temperature is below the

Maximum Alarm level. If the air temperature is below the Minimum Air Temperature Alarm, the cooling relay is

blocked. It is released if the temperature has risen above the Minimum Alarm level.

Changing these parameters is described earlier.

Standard values which are set at the factory are:

Setting Value

Absolute Maximum Temperature +22.0°C

Absolute Minimum Temperature +10.0°C

Delay Relative Temperature Alarm 30 min

Limit Relative Maximum Temperature +4.0°C

Limit Relative Minimum Temperature -4.0°C

Maximum Air Temperature +20.0°C

Minimum Air Temperature +10.0°C

Differential Air Temperature Limitation 0.5°C

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2.5 Error messages

The PROBA 50 has a large variety of ways to detect errors and failures. These are shown in an error code in the

display, while the ALARM LED lights and, depending on the type of error, the ALARM relay makes contact.

Pressing KEY can reset the ALARM relay. When several failures occur, use the SET key to scroll

through the errors.

The error code remains visible in the display until the cause of the alarm has been removed.

The PROBA 50 has two fault levels:

*fatal errors

* non fatal errors

Fatal Errors can be recognized by the letter 'E' in the display, followed by a number code. The meaning of the code

is:

E 1 All present temperature sensors are at fault

E 2 No temperature sensor present

E 2x Temperature sensor x is higher than the absolute maximum (x is the sensor number). E.g. 'E

22' means that sensor 2 is higher than the absolute maximum.

E 3x Temperature sensor x is lower than the absolute minimum (x is the sensor number). E.g. 'E

31' means that sensor 1 is lower than the absolute minimum.

During a Fatal Error the ALARM relay is activated. Depending on the Internal Settings the PROBA 50 will stop the

control or try to continue.

At the following Fatal Errors the control will always stop:

E 1 All present temperature sensors are at fault.

E 2 No temperature sensors present.

As soon as these faults are removed, the PROBA 50 will continue the program.

Non Fatal Errors can be recognized from the letter 'F' in the display, followed by a number code. The meaning of the

number is:

F x Temperature sensor x at fault. The regulation continues by using the operational temperature

sensors.

F 2x Temperature sensor x is higher than the relative maximum. The relative maximum is linked

to the current setpoint.

F 3x Temperature sensor x is lower than the relative minimum. The relative minimum is linked to

the current setpoint.

In Appendix A (Error messages, see page 18) all possible fatal and non fatal errors are listed.

Depending on the Internal Settings the alarms will be active if the PROBA 50 is on, or only during the execution of a

program or STANDBY regulation.

Selecting the ALARM relay to be resetable or not is achieved by the SET key. In the last situation the ALARM relay

will drop out when the faults are removed.

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3Datalogger

The PROBA 50 stores every hour measured temperatures, setpoint and the status of the relay. The data of the last 28 days is

stored in the memory.

During power failure of the PROBA50 logging will stop. The unit records that there has been a power failure.

By connecting the COM1 port of a computer to the RS 232 port of the PROBA 50, pre-recorded data can be downloaded to

the computer. The required software is available on request from VDH Products.

The data is stored in a DOS file, which can be edited using a normal editor.

The file will display the following data:

TIME - Date/time of the measurement

MODE - Status of the PROBA50

* Power off - switched of via ON/OFF

* Off - no program or standby

* Run - in program mode

* Stdby - in standby mode

SETP - Setpoint

AVERAGE - Control temperature

SENS 1 - Temperature sensor 1

SENS 2 - Temperature sensor 2

SENS 3 - Temperature sensor 3

SENS 4 - Temperature sensor 4

PF - Power failure during last hour

IP -Internal Programming accessed during last hour

COOL - Cooling relay activated during last hour

HEAT - Heating relay activated during last hour

VENT - Ventilation relay activated during last hour

GAS -Gassing relay activated during last hour

H.DIS - Heating function switched off

The date/time is calculated from the last measurement. This measurement obtains the actual date/time from the PC clock. The

date/time before a power failure could be wrong !

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Appendix A (Error messages)

Summary of error messages PROBA 50

type 'E' = Fatal Error.

type 'F' = Non Fatal Error.

Table of Fatal Errors

E 1 All present temperature sensors are at fault

E 2 No temperature sensor present

E 21 Temperature of sensor 1 exceeds absolute maximum

E 22 Temperature of sensor 2 exceeds absolute maximum

E 23 Temperature of sensor 3 exceeds absolute maximum

E 24 Temperature of sensor 4 exceeds absolute maximum

E 31 Temperature of sensor 1 below absolute minimum

E 32 Temperature of sensor 2 below absolute minimum

E 33 Temperature of sensor 3 below absolute minimum

E 34 Temperature of sensor 4 below absolute minimum

Table of Non-Fatal Errors

F 1 Temperature sensor 1 is at fault

F 2 Temperature sensor 2 is at fault

F 3 Temperature sensor 3 is at fault

F 4 Temperature sensor 4 is at fault

F 21 Temperature of sensor 1 exceeds relative maximum

F 22 Temperature of sensor 2 exceeds relative maximum

F 23 Temperature of sensor 3 exceeds relative maximum

F 31 Temperature of sensor 1 below relative minimum

F 32 Temperature of sensor 2 below relative minimum

F 33 Temperature of sensor 3 below relative minimum

VDH Products BV Document 951573 - Version 1.3 Blad: 19 of 26

Appendix B (Internal Parameters)

Number Description Range Unit Default

001

002

003

004

010

011

012

013

014

015

016

017

018

019

020

021

022

023

025

026

027

028

030

031

032

033

034

041

042

043

044

051

052

053

054

055

056

060

061

062

Differential cooling

Offset cooling

Differential heating

Offset heating

Absolute maximum alarm

Absolute minimum alarm

Relative maximum alarm

Relative minimum alarm

Delay relative alarm

Absolute maximum air temperature

Absolute minimum air temperature

Relative maximum air temperature

Relative minimum air temperature

Differential air temperature

Gas supply time program 1 to 5

Gassing period program 1 to 5

Ventilation time program 1 to 5

Ventilation interval program 1 to 5

Gas supply time program 6 to 10

Gassing period program 6 to 10

Ventilation time program 6 to 10

Ventilation interval program 6 to 10

Alarm relay resetable

Stop control during alarm

Absolute alarm when no control

Day 0 sensor selection

0 = control on sensor 1, 2 & 3

1 = in day 0 control on sensor 3

else on sensor 1 & 2

Setpoint change valid till the

next setpoint change

Sensor 1 present

Sensor 2 present

Sensor 3 present

Sensor 4 present

Offset sensor 1

Offset sensor 2

Offset sensor 3

Offset sensor 4

Proportional band cooling

I-time cooling (999 is P-function)

Software version

Serial number

Production date

0..20.0

-20..20.0

0..20.0

-20..20.0

-10..40.0

0..10.0

-10..0.0

0..99

-10..40.0

0..10.0

-10..0.0

0.1..10

0..500

0..99

0..240

0..48

0..500

0..99

0..240

0..24

0 = no

1 = yes

0 = no

1 = yes

0 = no

1 = yes

0..1

0 = no

1 = yes

0 = no

1 = yes

0 = no

1 = yes

0 = no

1 = yes

0 = no

1 = yes

-10..+10

0.1..+10

0..999

°C

min

°C

min

hrs

min

hrs

min

hrs

min

hrs

0.1°C

°C

min

year/week

0.2

-0.1

0.2

-0.6

25.0

10.0

5.0

-5.0

20.0

10.0

3.0

-3.0

0.5

0.0

1.0

VDH Products BV Document 951573 - Version 1.3 Blad: 20 of 26

Number Description Range Unit Default

110

111

112

113

114

120

121

122

123

124

125

126

130

131

132

133

134

135

136

137

140

141

142

143

144

145

146

147

148

150

151

152

153

154

155

156

157

158

159

999

Temperature day 0 program 1

Temperature day 1 program 1

Temperature day 2 program 1

Temperature day 3 program 1

Temperature day 4 program 1

Temperature standby program 1

Temperature day 0 program 2

Temperature day 1 program 2

Temperature day 2 program 2

Temperature day 3 program 2

Temperature day 4 program 2

Temperature day 5 program 2

Temperature standby program 2

Temperature day 0 program 3

Temperature day 1 program 3

Temperature day 2 program 3

Temperature day 3 program 3

Temperature day 4 program 3

Temperature day 5 program 3

Temperature day 6 program 3

Temperature standby program 3

Temperature day 0 program 4

Temperature day 1 program 4

Temperature day 2 program 4

Temperature day 3 program 4

Temperature day 4 program 4

Temperature day 5 program 4

Temperature day 6 program 4

Temperature day 7 program 4

Temperature standby program 4

Temperature day 0 program 5

Temperature day 1 program 5

Temperature day 2 program 5

Temperature day 3 program 5

Temperature day 4 program 5

Temperature day 5 program 5

Temperature day 6 program 5

Temperature day 7 program 5

Temperature day 8 program 5

Temperature standby program 5

Password

0 = PRG key

1 = STBY key

2 = GAS key

3 = VENT key

4 = SENS key

5 = SET key

6 = UP key

7 = DOWN key

8 = KEY key

7 = ON/OFF key

-10..40.0

1111-9999

°C

14.5

18.0

16.5

15.5

15.0

14.5

16.5

15.5

15.0

14.5

16.5

15.5

14.5

14.0

14.5

15.5

14.5

14.0

14.5

14.0

1234

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VDH PROBA 50 User manual

VDH PROBA 50 User manual

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