CELLmatic 1502 GSV User manual

Thy-tronic I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: [phone] – Email.: [email protected]
CELLmatic 1502 GSV/GSF
User Manual
Version 2.1

CELLmatic 1502 – GSV/GSF Issue: 2.1
User Manual 04.02.08
Thy-tronic I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: [phone] – Email.: [email protected]
CONTENTS
INTRODUCTION.........................................................................................................2
DISPLAY.......................................................................................................................3
KEYBOARD .................................................................................................................4
DIODES ........................................................................................................................4
MENU TREE ................................................................................................................5
PASSWORD..................................................................................................................6
SETTING OF CLOCK AND DATE......................................................................................6
CONTROL ....................................................................................................................7
MONITORING ...............................................................................................................7
ALARM.........................................................................................................................7
CUTOUT .......................................................................................................................7
EMERGENCY STOP........................................................................................................7
STARTING UP .............................................................................................................8
CONNECTION BETWEEN CAPACITY AND VOLUME RATIO.....................10
TYPES OF DUTY.......................................................................................................11
CALIBRATION..........................................................................................................15
SETUP OF COMPRESSOR......................................................................................16
SET POINTS...............................................................................................................19
DISPLAY PICTURES................................................................................................31
I/O PICTURES............................................................................................................35
SURVEY OF SET POINTS.......................................................................................45
SURVEY OF MESSAGE TEXTS.............................................................................47
SURVEY OF ALARM AND CUTOUT TEXTS......................................................49

CELLmatic 1502 – GSV/GSF Issue: 2.1
User Manual 08.02.2004
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INTRODUCTION
This operating manual is primarily intended for users of the CELLmatic 1502 computer. The manual itself
describes in general how to communicate with the computer, but not how to configurate the computer for a
specific control task. Reading this manual does not require any particular knowledge of computers, and the
same applies to the operation of the CELLmatic 1502. However, it would be useful to test the described
procedures of the CELLmatic 1502, while going through this manual.
Operating the microprocessor
The microprocessor is operated from the keyboard on the control panel. Here is also found the display, which
normally shows operating conditions.
The front of the panel with keyboard and display is as shown in the picture below.
The emergency stop is at the extreme right.

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DISPLAY
The display has been divided into more fields:
ALARM LINE
COMMAND LINE DATE TIME
F6 :
F5 FUNC- :
F4 TION :
F3 FIELDS :
F2 :
F1 STOP :
TEXT AND
INFORMATION
SIGNAL AND STATUS LINE
1. Text and information
This field may consist of a text alone, which will be clearly bound up with the function fields.
In some menus the field will be consisting of a text with corresponding values, as for example "P-SUCT
20.0°C".
When entering set points and set up values there will also be a text with corresponding values. If the set
point or the set up value concerned is altered the new value will appear on the display.
2. Signal and status line
On the status line it is possible to show a number of texts stating the working condition of the
compressor.
If capacity is adjusted up or down a "C" followed by a plus (+) or a minus (-) will appear in this line. In
case of volume ratio control a "V+" or a "V-" will appear.
At the back of this description of control there is a list for signal texts.
3. Command line
The command line shows whether a scrolling of display modes has taken place, and how far it has
proceeded.
Here a possible new set point is also shown before the value is updated and moved into the field "Text
and information".
4. Alarm line
In case of an alarm or a cutout this will be indicated in this line. See list of alarm and cutout texts at the
back of this description.
5. Function fields
The actual functions, which can be performed by means of the keys F1 - F6 are shown here.
If no text appears the key has no function.

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KEYBOARD
The keyboard is provided with three types of keys:
1. Function keys
2. Fixed function keys
3. Numeric keys
1. Function keys (F1-F6)
When a function key is pushed, the function shown in the display opposite the key is performed.
F1 is generally identical with stop. If F1 is pushed once, and the text "STOP" is shown opposite the key,
the compressor will stop after expiry of the stop time, and the signal "MAN.STOP" will appear in the
bottom line of the display. In order to start the compressor again it is necessary to push the <CLA> key.
F6 is used for resetting an alarm, if the text "CLA" is shown opposite the key.
2. Fixed function keys
The keyboard is provided with 3 fixed function keys.
ÍÍ (Reset) is used for scrolling immediately from an arbitrary menu to the initial picture.
Í(Recall) will delete the latest entry. It means that it is used for scrolling back to the previous
menu.
When entering set points the <Í> key can be used for deleting the value entered provided
that the <ENTER> key has not been pushed.
ENTER (Enter) is used for updating. If you want to change a set point and the new value, which will
be shown in the command line, has been entered the value is updated by pushing the
<ENTER> key.
3. Numeric keys
The numeric keys are used for change of set points, and choice of refrigerant, compressor type, type of
duty etc.
DIODES
There are three diodes on the front of the panel:
RED DIODE
The red diode lights up when a cutout occurs in the system.
YELLOW DIODE
The yellow diode lights up when an alarm occurs in the system.
GREEN DIODE
The green diode lights up during standstill to indicate that the compressor is ready to start. This assumes
that no cutout, restart delay or other factors will prevent the compressor starting when required. If
CABS is less than 15%, the green diode will not light up. During operation the lamp is of no
significance, but it will go out when a cutout occurs.

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MENU TREE
The connection between function fields for selection of operation, set up and set points are shown below. For
the I/O pictures a menu tree is shown at the beginning of the section "I/O pictures".

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PASSWORD
To protect the system against use by unauthorised persons, certain menus are protected by a password. In daily
use of the control panel it is not necessary to use the password, reading off and start/stop can be performed
without using passwords. However, if important setpoints or set-ups have to be changed the password might be
necessary. The extent to which this is necessary is indicated in the menu tree on the previous page, i.e. "P" is
given, followed by the password.
A password can be entered by going to the initial picture <ee> and then keying <ENTER>, <F1>,
<password>, <ENTER> and, finally, <ee> in order to return to the initial picture. If the necessary password
is not entered, the function fields for the "password-demanding" menus concerned will remain empty. An
entered password will "hold" for about half an hour. If a password is to be deleted before leaving the machine,
the procedure is as follows: Go to the initial picture <ee> and key <ENTER>, <F1>, <ENTER> and <ee>.
The password will then be deleted.
The panel operator might have to use two passwords.
PASSWORD "1.5"
This password must be used when changing important setpoints and machine set-up. When the password is
used it becomes possible to show the I/O pictures which gives the status of analog and digital inputs and
outputs (I/O = Input/Output).
PASSWORD "1.8"
This password is used very rarely, typically only for the first start-up when in error the wrong type of
compressor has been entered and must be changed under SETUP2/MENU2. The reason that password 1.5
cannot be used for the change is that when the compressor type is changed, certain pictures and setpoints are
also changed and must then be checked.
The password "1.8" can also be used if a node number which is an identification number allocated to the panel
when coupled to a network is to be changed; see below for a description of communication in the section "Set-
up of compressor".
SETTING OF CLOCK AND DATE
Clock and date can be set as follows: Go to the start menu picture with <ee> and key <ENTER>, <F1>,
password <1.5> and then <ENTER>. The function field against key F4 will now show "TIME" and the
function field against key F3 will show "DATE".
If, for example, the time must be 14.53.20, key <F4> followed by "14.53.20". The time can then be entered by
keying <ENTER>.
If the date is to be 15 January 1994, key <F3> followed by "15.01.94". The date can then be entered by keying
<ENTER>.
Return to the initial picture by keying <ee>.

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CONTROL
The CELLmatic 1502 control panel is equipped with a microprocessor. The microprocessor monitors and
adjusts the operation of the compressor, and facilitates communication between operator and the machine.
MONITORING
The microprocessor monitors and reacts to error conditions in the compressor. The following conditions are
monitored:
- Suction temperature
- Suction pressure
- Discharge pressure
- Oil differential pressure
- Pressure drop over oil filter
- Oil temperatures
- Oil level in oil separator
- Pressure pipe temperature
If the threshold limit value of the set point is exceeded, possibly with a delay for the individual operating
parameter, a message will be sent either through an alarm or a cutout (the compressor will stop).
ALARM
An alarm message means that a preset limiting value has been exceeded, and something might go wrong
shortly. I.e. a warning.
In the event of an alarm the message "P1 ALARM" will appear in the upper left-hand corner followed by the
operating parameter causing the alarm.
The alarm and the time of alarm will be stored in the memory of the control, and can be read out if the
computer is connected to a main control unit.
An alarm is reset by pushing the <CLA> (= Clear Alarm; F6), but it will appear again immediately, if the error
causing the alarm is not removed from the system.
CUTOUT
Cutout means that an operating situation has risen, which require the compressor to be stopped. Cutout
conditions are shown in the same way as alarms, and are to be reset at the <CLA> before the compressor can
be restarted. If a picture with the operating parameter concerned is not already shown in the display, there will
automatically be scrolled to a display picture showing the operating parameter together with a "frozen" cutout
value.
EMERGENCY STOP
In the event of an emergency stop the compressor and the oil pump will stop immediately, but it will not
prevent the next slave from starting.
After deactivation of the emergency stop, <CLA> must be keyed before the compressor can be restarted.

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STARTING UP
If a cold start is attempted, i.e. the voltage supply has been connected to the panel after the microprocessor
battery back up has been disconnected the following picture (the cold start picture) will appear.
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F6 :Screw compr. Control CELLmatic
F5 COMP.TYPE: 1=GSV 2=GSF 0
F4 COMP.SIZE:State size 0
F3 REFRIGER.:State type 0
F2 NODE NO. :State own number 0
F1 CONTINUE :The above has to be completed
In this picture, the following questions must be answered:
1=GSV
2=GSF
If the compressor is with variable volumen control – select 1.
If the compressor is with fixed volume control – select 2.
Compressor size: Possibilities are: 50, 65, 84, 111, 147, 185, 263, 331, 412 and 562.
Ex.: 64 means that the compressor has a swept volume of 640 m3/hour.
Refrigerant: Possibilities are: 12=R12, 22=R22, 134=R134a, 404=R404a, 502=R502 and 717=R717.
Node number: Here, give the identification number the panel can be allocated if communication is by network.
When these questions have been answered with values the computer can accept and <F1> must be keyed to
continue. If a value has been given that subsequently must be altered without cold start, the operation can be
performed under setup or setpoints.
When <F1> is keyed, the picture shown is the "initial picture". This picture is also shown when control voltage
is connected to the panel while there is battery back up on the microprocessor, i.e. a "hot start".
01-01-94 17:25:35
F6 CLA :P-Suction (C) 0.0 C
F5 SETUP. :Output (%) 0.0 %
F4 SET POINT:Ampere (%) 0.0 %
F3 MANUAL :T-oil compr (C) 0.0 C
F2 DISPLAY 2:P-discharge (B) 0.00 Bar
F1 STOP : STOP
01-01-94 17:25:35
SETPOINT/SETP I-L/SETP. I/
F6 CLA :
F5 NEW (F5) :Transform. factor 0 %
F4 NEW (F4) :Ampere max. 110.0 %
F3 NEW (F3) :Switch on heater 40.0 C
F2 HEAT SYST:Activ 0=NO 1=YES NO
F1 STOP : STOP

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The left-hand corner might then show "CUTOUT I-DATA". This means that a transformer factor must be
entered. Enter password "1.5" and go to SETP/I:
When picture "SETP/I" appears, key <F5> followed by the transformer factor.
The transformer factor is determined by:
Transformer factor = (input current corresponding to 20 mA output on the current converter instrument)
Full load current of motor
The current converter instrument must have a range of input current there go higher than the full load
motor current, so an over load can be measured. A range there goes up to 25% higher will be very
suitable.
Example: When using an instrument transformer where the primary current is 200 A and a motor with a
rated current of 180 A
The transformer factor will make = 200
180 = 1,11
When the factor has been entered, push <ENTER> to update and then <ee> to return to the initial picture.
The text "CUTOUT I-DATA" is removed from the initial picture by pushing the <F6> (Clear alarm). In
principle the compressor is now ready for start, but in most cases the set points are to be altered, and the type
of duty has to be indicated; see following section.

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CONNECTION BETWEEN CAPACITY AND VOLUME RATIO
The programme is operating with 3 values for capacity, output, C-abs and C-pos. To demonstrate the
connection between these values the below sketches indicate the regulation and control of the slide stop and
the slide valve.
With suction flange mounted on top of the compressor:
With suction flange mounted on the side of the compressor:
The slide stop (MSS) provides the lowest volume ratio, when in its outermost left-hand position. Conversely,
the highest volume ratio is obtained in the outermost right-hand position. The actual position is measured by a
sliding potentiometer (POT 1).
As far as the slide valve (MSV) is concerned, the lowest capacity is obtained, when the piston is in its
outermost right-hand position. A 100% capacity is obtained when the slide valve is run so far to the left that it
runs against the slide stop. The position is measured by means of a rotary potentiometer (POT 2) or a sliding
potentiometer.
The slide valve has its longest travel when the slide stop is in a outermost left-hand position. For all other
positions of the slide stop, the travel of the slide valve will be shorter.
The longest possible travel of the slide valve is called the absolute travel, C-abs, and goes from 0 to 100%. The
value can be read in the display 2 picture.
The actual travel, C-pos, which is dependent on the position of the slide stop, goes also from 0 to 100%. The
value can be read in the MANUAL picture or in the display 4 picture.
The output is a calculated value indicating the partial load at which operation is taking place. The calculation is
performed on the basis of the relative position and the actual volume ratio. The output can be seen in the initial
picture.

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TYPES OF DUTY
CELLmatic offers the possibility of 4 types of duty:
1. MASTER OPERATION
2. SLAVE OPERATION
3. REMOTE CONTROL OPERATION
4. MANUAL OPERATION
F5 is activated from the initial picture and you go to SETUP 1
01-01-94 17:25:35
SETUP 1/
F6 CLA :Select type of operation (F5):
F5 OPERATION:1=Master 2=Slave 3=Manual
F4 :4=Remote w. ext. setp (remot4)
F3 I/O :5=Remote w. own setp (remot5)
F2 SETUP 2 :
F1 STOP : STOP
Note: In the SETUP 1 picture the whole text field is attached to the F5 key "OPERATION". The type of
duty is selected by entering <F5> followed by a number from 1 to 5 dependent on the required type of
duty.
1. Master operation
If master operation is selected the message "MASTER" will appear on the bottom of the report line.
This type of duty can be selected if the compressor is not connected with other compressors (also called "stand
alone"), and you want it to run according to its own set point.
The master compressor is able to control one or more subsequent compressors (slaves). The slaves will all be
controlled by the setpoint of the master compressor.
For master operation the following conditions have to be fulfilled before the compressor will start:
-Restart period expired
- Call for capacity, that is PSUCTION [°C] > (PSUCT-SETP+PSUCT-START)
T
BRINE > (TBRINE-SETP+TBRINE-START)
- Reset of possible cutout <CLA>
- Slide valve at its minimum (CABS < 15%)
- Oil pump is started and the oil pressure are greater than (Oildiff. Alarm)
Under setp E a choice can be made: control in accordance with the suction pressure or the brine temperature,
see description of setpoints.
If the compressor has started it will stay in its minimum until the motor is in delta. After this the capacity will
be increased until it has reached its "minimum capacity" (Setp. C). The internal volume ratio of the compressor
will now adjust to the volume ratio of the plant (Vi), and the capacity is controlled by the suction pressure.
This is done by sending electrical signals to two solenoid valves mounted on the oil manifold of the
compressor.
If the slide valve or the slide stop is adjusted upwards, a "C+" or a "V+" is shown in the display. In case of a
downward adjusting a "K-" or a "V-" is shown. If the suction pressure is within the dead zone there will be no
regulation of capacity. If the suction pressure lies within the dead zone, capacity will not be regulated and
"CN" will be shown on the display.

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When the motor current exceeds the rated current (setp. C/F4) less 10 % the capacity up signals will be halved.
When the motor current exceeds the rated current less 3% the capacity up signals will be locked. When the
motor current exceeds max. ampere consumption (setp. I) the capacity will be adjusted downwards by forced
operation till rated current is reached again.
If the compressor receives signals to stop the following will take place:
- the oil pump will start (if it is OFF)
- a constant signal is set to the capacity-down solenoid valve
- a constant signal is set to the volume-down solenoid valve
and the compressor will not stop until minimum capacity (C-ABS > 15%) has been reached, but not later than
after the stopping delay which can be variably set under SETUP2/MENU 2. The pump will continue to run for
5 minutes, calculated from the start of run-down. The solenoid valves for the down-regulation of capacity and
volume ratio remain activated for 120 minutes, provided CABS is not less than 15%.
In most cases this will ensure that the compressor is ready for start.
2. Slave operation
Slave operation is selected by activating the F5/2 in the SETUP 1 picture.
If the compressor is to run as a slave, a master compressor must be available. The slave must be connected to
the master compressor either via a hardware connection or a network (Profibus). The master compressor can be
a compressor set for the operating form "MASTER" or "REMOTE".
The connection between master and slave is as shown below:
When the master compressor has reached 100% and there is still call for refrigeration the slave will receive a
signal to start after a preset delay (setp. U). The slave will now run up to its preset minimum setpoint C at the
same time as the master might be adjusted a little downwards to avoid excess capacity. If there is a call for
more refrigeration the master will first be adjusted up to 100%, and then the slave will be adjusted upwards.

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In case of downward adjustment the slave will first be regulated to its minimum after which further downward
adjustment will be taking place at the master compressor.
When the master has reached "SLAVE STOP" (setp. U/ F3) the slave will stop, and adjustment will take place
at the master alone.
Signals to the slave about upward and downward regulation of capacity will be sent by the master compressor,
which at the same time will start the slave in the event of a cutout or voltage limitation.
Before a slave can start, in addition to a start signal, and a slave cap.-up signal from the master, the following
conditions must be fulfilled:
- Restart delay expired
- Reset of cutout, if any
- Slide valve at minimum (C-ABS < 15%)
When the slave is stopped the oil pump etc. will start as when stopping a master compressor.
In the event of operation with more slaves, slave no. 1 will work as a master for slave no. 2, and so on.
However, the suction pressure, registered by the "real" master, will be adjusted unless, for the master
compressor it is a question of remote control operation with external set point.
3. Remote control operation
The CELLmatic 1502 offers the possibility of running remote operation in 2 different ways:
I. Remote control according to its own setpoint (select OPERATION/5).
The compressor must receive a start signal before it will run, and then it will react as if it was a
compressor preset for the "MASTER" operation, that is it runs according to its own setpoint.
Note: The compressor will only start if suction pressure PSUC[°C] > (PSUC SETP +PSUC START)or
if brinetemperature TBRINE > (TBRINE SETP+TBRINE START) and will stop again if
PSUC[°C] < (PSUC SETP -PSUC STOP) or TBRINE < (TBRINE+SETP+TBRINE STOP)
II. Remote control according to external setpoints (select OPERATION/4).
The compressor will start via an external signal and run according to external setpoints. The signals for
capacity up and down are sent from the main panel. The CELLmatic 1502 is converting these signals into
pulse interval signals for the solenoid valves of the compressor.

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4. Manual operation
Manual operation can be selected by entering OPERATION/3 in SETUP 1, but in order to operate the
compressor by hand you have to enter into the MANUAL menu. Push the <ee> key in order to go back to
the initial picture and activate <F3>.
Note: If you are running master operation and want to change into manual operation this can be done without
having to select "MANUAL" operation under SETUP 1. From the initial picture the <F3> key is
activated, and at the moment the "START" (F4) key is pushed you change into manual operation.
01-01-94 17:25:35
MANUAL/
F6 CLA :Vi-Compressor 0.0
F5 CALIBRATE:C-pos 0.0 %
F4 START :1=Compr. 2=Pump
F3 NEW (F3) :Setpoint Vi 9.9
F2 NEW (F2) :Setpoint C-pos 999.0 %
F1 STOP : STOP
If the compressor or the pump are to be started, push "START" <F4> followed by 1 or 2. If the compressor is
started the oil pump will also be running dependent on which type of pump has been chosen, see setpoint R.
The desired capacity, at which the compressor is to run, can be stated by F2. After this the solenoid valve will
receive pulses and the capacity slide will be adjusted to the desired capacity. If -10 or 110 is entered here, the
solenoid valve will receive constant signal to lower/ increase the capacity. If the value 999 is given, capacity
regulation will be a master operation, but ignoring PSUG START/PSUG STOP and TBRINE START/TBRINE
STOP.
With the F3 key the volume ratio can be selected at which you want the compressor to run. Here, the volume
slide is also regulated by impulses. By entering 2.0 or 6.0 the signal to lower/ increase the volume ratio will be
constant. If the value 9.9 is entered the computer will compute and place the slide stop at the optimum volume
ratio given at the suction pressure and the discharge pressure. In the MANUAL picture the desired values and
the actual values for capacity and volume ratio will appear in the text field.
F1 is used for stop of compressor and pump, and "MAN.STOP" will appear on the message line.

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CALIBRATION
With the F5 key a menu, which is used when calibrating the potentiometers scanning the positions of capacity
slide and slide stop, can be selected from the MANUAL picture.
01-01-93 17:25:35
MANUEL/CALIBRATE/
F6 CLA :Volume position 0
F5 :Capacity pos 0
F4 START :1=Compr. 2=Pump
F3 NEW (F3) :Setpoint Vi 2.2
F2 NEW (F2) :Setpoint C-pos 0,0 %
F1 STOP : Stop
Starting the compressor or oil pump makes calibrating. Enter -10 in setpoint C-pos. and 6.0 in setpoint Vi. The
capacity slide will now be forced into minimum and the slide stop into maximum position. When the values of
the two upper text lines are not changed any more, the limits have been reached. The values are read and noted.
Enter now 110 for C-pos and 2.0 for Vi. The capacity slide will then run into maximum and the slide stop into
minimum. As above, the variable values of the two upper lines are read and noted when the limits have been
reached.
The 4 noted values for the maximum and minimum positions of the slides are entered under setpoint S (see
section about setpoints), after which the potentiometers are calibrated.

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SETUP OF COMPRESSOR
Unit data and electrical data are laid down under SETUP1/SETUP2.
Do not forget to enter the password to make SETUP2 active.
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SETUP 1/SETUP 2/
F6 CLA :
F5 MENU 5 :Communication data
F4 :
F3 MENU 3 :Electrical data
F2 MENU 2 :Unit data
F1 STOP : STOP
COMMUNICATION, PROFIBUS, MENU 5
Through a profibus system, with the F5 key of the SETUP2 menu access is given to data (menu 5) affecting the
communication of the control panel.
01-01-94 17:25:35
SETUP 1/SETUP 2/MENU 5/
F6 CLA :
F5 COMMUNIC.:State 0=OFF 1=ON OFF
F4 NEW (F4) :Next (slave) 0 Node
F3 NEW (F3) :Previous (master) 0 Node
F2 NODE NO :State own number 5
F1 STOP : STOP
F5: To make this communication all CELLmatic 1502 panels involved must be provided with the
communication board CELL 566, which consists of a communication adapter (a so-called profibus). If
this extension has been mounted it is possible, in the above menu, to select whether the
communication is to be active (1=YES) or not (0=NO).
F3/F4: Through a menu, to which there is only access for specially instructed staff, a compressor and its
control panel can be given an identifier, here called "Node-No.". Through the F3 and F4 key you can
tell which compressors are running as master or slave for the compressor concerned, if more compres-
sors are provided with profibus, and they have further been given a Node-No. In F3 and F4 the panels
own number must never be entered.
F2: Here the node number (identification number) the panel is to have, must be entered. To enable the
entry, password "1.8" must be given.

CELLmatic 1502 – GSV/GSF Issue: 2.1
User Manual 08.02.2004
Page 17 of 51
Thy-tronic I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: [phone] – Email.: [email protected]
SETUP OF COMPRESSOR
UNIT DATA, MENU 2
With the F2 key of the SETUP2 menu access is given enter 4 unit data for the compressor.
03-06-96 13:48:15
SETUP 1/SETUP 2/MENU 2/
F6 CLA :
F5 NEW (F5) :Motor cut time 10.0 Sek.
F4 NEW (F4) :Stop time (sek) 20.0 Sek.
F3 KOMP TYPE:State 1=GSV 2=GSF 0
F2 POWERKIT :State 0=NO 1=NC NO
F1 STOP :GSV Stop
F6: PowerKit
Time in seconds can here be entered. PowerKit solenoid valve opens before compressor stops.
F5: Motor cut time
Through the feedback from the star-delta starter of the compressor (that the starter is in delta) the
control panel registers that the compressor is running. If this signal disappears the control panel will
give an alarm. In order to avoid the alarm message when starting up, where the starter has not yet
switched from star to delta position, a time delay of the alarm message is entered here with the F5 key.
The time delay is running from the moment the start signal has been given to the motor and is called
"Motor cut time". Can be set from 5 to 30 seconds.
F4: Stop time
After STOP or CUTOUT has been set the time, according to which the compressor is to run, is set
with the F4 key. The value can be set between 0 and 120 seconds and is called STOP TIME. At
compressors running with a great difference between condensing pressure and suction pressure a
small stop time is set.
Note: When stopping the compressor abnormal periodical noise might be observed if the stop time is
too long, and at the same time there is a high differential pressure. This appears in case of "oil
lapping" and should be avoided by reducing the stop time.
F3: Compressor type
Here the compressor type can be changed if after a cold start the wrong type has been entered. To
make the change, enter password "1.8". If the compressor type is changed, certain pictures and
setpoints will also be changed.
F2: Power kit
With the F2 (under MENU 2) it can be indicated if the solenoid valve used for POWER KIT is
normally open NO or normally closed NC.
Power kit can be used if the suction/non-return valve needs help for closing when the compressor is
stopped. In case of a compressor stop Power kit has the function to send high-pressure gas into the
suction valve for 15 seconds in such a way that the valve is forced to close.

CELLmatic 1502 – GSV/GSF Issue: 2.1
User Manual 08.02.2004
Page 18 of 51
Thy-tronic I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: [phone] – Email.: [email protected]
SETUP OF COMPRESSOR
ELECTRICAL DATA, MENU 3
With the F3 key (menu 3) of the SETUP2 menu access is given for displaying 2 analogue process variables as
a 4 to 20 mA signal on channel 0 or 1.
01-01-94 17:25:35
SETUP 1/SETUP 2/MENU 3/
F6 CLA :Analog outp 1 NO
F5 NEW OUT 1:State:0 1 2 3 4 5 0.0 mA
F4 :Analog outp 0 NO
F3 NEW OUT 0:State 0 1 2 3 4 5 0.0 mA
F2 :
F1 STOP : STOP
For the two channels can freely be selected between following:
0 = No displaying
1 = OUTPUT 0-100% ≈ 4-20 mA, calculated value
2 = AMPERE 0-150% ≈ 4-20 mA, measured motor current
3 = OIL DIFFERENTIAL PRESSURE 0-25 bar ≈ 4-20 mA, computed value
4 = SUCTION PRESSURE -1 to +6 bar ≈ 4-20 mA, measured value P-suction
5 = DISCHARGE PRESSURE 0-25 bar ≈ 4-20 mA, measured value P-discharge
With the F5 key it can be selected which variable you want to read out at channel 1 by indicating one of the
above numbers from 0 to 5.
The selected variable for channel 1 is displayed on the upper line of the text field and on the line below the
value (4 to 20 mA value) is displayed.
Correspondingly, F3 will be able to select the variable at channel 0, and variable and value for this will appear
on the 2 next text lines.

CELLmatic 1502 – GSV/GSF Issue: 2.1
User Manual 08.02.2004
Page 19 of 51
Thy-tronic I/S – Bjørnevej 8c – DK 7700 Thisted – Tel.: [phone] – Email.: [email protected]
SET POINTS
The specific set points regarding function will be described in this section. In general, to the set points it
applies that the function keys F2 to F5 are uniquely used for selecting the value shown on the text line opposite
the key concerned. In the description of the set points the number of the function key will thus be indicated
followed by an explanation. At the back of this description of the control there is a summary of all set points
with a specification of minimum/ maximum limits together with starting up values.
Set point A:
01-01-94 17:25:35
SETPOINT/SETP A-E/SETP. A/
F6 CLA :
F5 NEW (F5) :P-suc setp 1 -30.0 C
F4 NEW (F4) :P-suc relieve -40.0 C
F3 NEW (F3) :P-suc cutout -45.0 C
F2 NEW (F2) :Restart delay 30.0 Min.
F1 STOP : STOP
F5: P-SUCTION SETPOINT 1
The suction pressure is set here (in °C) according to which the compressor is to be adjusted. As the
compressor has the possibility to change quickly between two set points (1 and 2) for suction pressure
this is the desired value if the compressor has to run according to suction pressure 1. (Suction pressure 2
is entered under "Set point T", see later in the section about set points). The extent of regulation in
accordance with setpoint 1 or 2 for suction pressure (or brine temperature) is determined by the value
entered for setpoint E and whether or not a signal is given on resistance input R IN 4. Notice that on
switchboards provided with EPROM no. lower than 94600 a shift between setpoint 1 and 2 is performed
through digital input 4, whereas on switchboards with EPROM no. 94600 or higher resistance input R IN
4 is being used. EPROM no. can be read on display picture 6.
Resistance input
R IN 4 Brine regulation SETP.E/F2 active Regulation based on:
OFF NO Psuct setp 1.(setp. a/F5)
OFF YES Brinetemperature (setp. E/F5)
ON NO Psuct setp.2(setp. T/F4)
ON YES Psuct setp.2(setp. T/F4)
F4: P-SUCTION RELIEVE
If this suction pressure (in °C) is too low the compressor will start relieving which means that it is
adjusting the capacity downward. The downward adjustment is effected by sending a signal to move the
slide valve to minimum until the pressure is again higher than the suction pressure set "P-SUCTION
RELIEVE". At the same time the message "RELIEVE" will appear on the text line of the display picture,
but there will be no alarm as this state is considered as a regulation situation.
F3: P-SUCTION CUTOUT
If this suction pressure (in °C) is too low the compressor will stop and the message "ST.PSUCT" will
appear in the display. This stop mode will not give any alarm message, and will be reset when the suction
pressure has again exceeded this set point (P-SUCTION CUTOUT)
F2: RESTART DELAY
The time entered here is the number of minutes with which the restart of the compressor will be delayed.
The time is counted from the last compressor start, and the purpose is to protect the compressor motor
against overload because of too many starts. In case the restart time has not expired, and the compressor
is stopped, the text "RESTART" will appear on the message line of the display if attempts are made to
start the compressor. If you are still going to force the compressor to start the restart time can be ignored
by pressing the <F6> (clear alarm, "CLA").