LogikaControl LOGIK 26-S User manual

Revision 1 –04.12.2015 1/28
Instructions and Advices
to use the electronic controller
Logik 26-S
ORIGINAL INSTRUCTIONS
(INDUSTRIAL CONTROL EQUIPMENT)
39UG
FILE: E316817

Revision 1 –04.12.2015 2/28
INDEX
CAUTION ..........................................................................................................................................3
TECHNICAL FEATURES......................................................................................................................4
MOUNTING .......................................................................................................................................5
WARNING TO THE WIRING OF THE CONTROLLER.............................................................................5
LEGEND ..............................................................................................................................................................7
CONNECTION SERIAL NET RS485 .....................................................................................................9
MAIN VISUALIZATION ...................................................................................................................10
QUICK SETTING START/STOP PRESSURES (ENABLED WITH PASSWORD LEVEL3) .........................12
GENERAL NOTES TO THE PROGRAMMING.......................................................................................12
M1 MAIN MENU..........................................................................................................................12
M2 ENTER PASSWORD ...............................................................................................................13
M1-1 INFO .................................................................................................................................13
M1-2 PASSWORD.......................................................................................................................13
M1-3 VISUALIZATIONS SETUP...................................................................................................13
M1-4 COMPRESSOR SETUP ........................................................................................................14
M1-5 PRESSURES.......................................................................................................................16
M1-6 TEMPERATURES ................................................................................................................16
M1-7 TIMER...............................................................................................................................16
M1-8 INVERTER RS485 (DANFOSS) ...........................................................................................17
M1-9 ANALOG OUTPUT ..............................................................................................................18
M1-10 HOURS FILTERS/OIL ........................................................................................................19
M1-11 MAINTENANCE LIST..........................................................................................................19
M1-12 ALARMS LIST ....................................................................................................................19
M1-13 TIMER START/STOP..........................................................................................................20
M1-14 RESET ...............................................................................................................................20
ALARMS..........................................................................................................................................21
ALARMS WITH IMMEDIATE COMPRESSOR SHUT-OFF ..............................................................................................21
ALARMS WITH COMPRESSOR SHUT-OFF AFTER 30 SECONDS UNLOAD RUNNING.......................................................21
WARNINGS (VISUAL ALARMS) .............................................................................................................................22
MESSAGES VISUALIZED INTO ALARM LIST ONLY ...................................................................................................22
MAINTENANCE MESSAGES ..................................................................................................................................22
HOW LOGIK 26-S CONTROLS THE COMPRESSOR ............................................................................23
INVERTER OPERATION...................................................................................................................25
INVERTER CONTROLLED VIA ANALOG OUTPUT 4/20mA ..........................................................................................25
INVERTER CONTROLLED VIA RS485 .....................................................................................................................25
MASTER/SLAVE OPERATION ..........................................................................................................26
MASTER/SLAVE INVERTER (ONLY FOR LOGIK26S, LOGIK33S) .................................................................................26
MULTIUNIT OPERATION.................................................................................................................26
WARRANTY TERMS .........................................................................................................................27

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CAUTION
THE LOGIK 26-S IS AN INDUSTRIAL CONTROL EQUIPMENT (NOT A SAFETY ISTRUMENT) FOR THE OPERATION
OF A SCREW COMPRESSOR WITH SOFTWARE CLASS A (see EN 60730-1 and EN 60335-1).
THE INSTALLATION MUST BE MADE IN ACCORDANCE TO THE LOCAL AND INTERNATIONAL STANDARDS AND
REGULATIONS WHERE THE COMPRESSOR IS MANUFACTURED.
THE INSTALLATION AND START UP OF THE CONTROLLER MUST BE CARRIED OUT BY TRAINED PERSONNEL
WELL KNOW IN THIS MANUAL.
THE CONTROLLER HAS TO BE USED IN STANDARD INDUSTRIAL ENVIRONMENT AND IT CAN NOT BE USED IN
EXPLOSION RISK ENVIRONMENT, MARITIME AND MILITARY PURPOSE.
THIS MANUAL COULD BE SUBJET TO CHANGES; PLEASE CONTACT LOGIKA CONTROL TECHNICAL OFFICE IN
CASE OF DOUBT ON THE LAST VERSION.
ATTENTION
LA LOGIK 26-S EST UN CONTROLE EQUIPMENT INDUSTRIEL (PAS UN INSTRUMENT DE SECURITE) POUR LE
FONCTIONNEMENT D’UN COMPRESSEUR A VIS AVEC SOFTWARE DE CLASS A (voir EN 60730-1 et EN 60335-1).
L'INSTALLATION DOIT ETRE EFFECTUEE CONFORMEMENT AUX NORMES ET AUX REGLEMENTATIONS LOCALES
ET INTERNATIONALES OU LE COMPRESSEUR EST FABRIQUE.
L'INSTALLATION ET MISE EN MARCHE DE LA COMMANDE DOIVENT ETRE EFFECTUEES PAR DU PERSONNEL
QUALIFIÉ BIEN SAVOIR DANS CE MANUEL.
LE CONTROLEUR DOIT ETRE UTILISE DANS LA NORME ENVIRONNEMENT INDUSTRIEL ET IL NE PEUT PAS ETRE
UTILISE DANS UN ENVIRONNEMENT DE RISQUE D'EXPLOSION ET MARITIME FINS MILITAIRES.
CE MANUEL POURRAIT ETRE SOUS RESERVE DE MODIFICATION; S'IL VOUS PLAIT CONTACTER LOGIKA
CONTROL TECHNIQUE BUREAU EN CAS DE DOUTE SUR LA DERNIERE VERSION.

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TECHNICAL FEATURES
-Industrial control equipment for the operation and management of screw compressors only, pollution degree 2.
-In accordance to EC Directives:
-Directive:
-LVD : 2014/35/UE
-EMC: 2014/30/UE
-RHOS: 2011/65/EU
-based on the following harmonized standards applied:
-SAF-EMC: EN 60730-1
-RHOS: EN 50581
-In accordance to UL 508 (FILE #: E316817).
-Black auto-extinguishing box in ABS:
-a) according EC: IP64 for the front panel and IP20 for the other parts;
-b) according UL: type 1 and Type 12 for front panel mounting , installation in pollution degree 2 for the other parts
-Inputs and outputs via terminal-block board to wires (250V, 10A, 12-24AWG) tightening torque 8 Nm.
-Working temperature: 0°C (32°F) ÷ 50°C (122°F) 90% RH (non condensing)
-Storage temperature: -20 (-4°F) ÷ +70 °C (158°F)
-Power supply: 12Vac ± 10% 50 ÷ 60 Hz. (power of the transformer’s secondary: ~ 9 VA) from safety transformer
-Max. current absorbed = ~ 350 mA
- Visualization through back light alphanumerical LCD 20 digits x 2 rows and nr. 1 led for alarm status
- Messages selectable in 8 languages: Italian –English –French –German –Spanish –Portuguese –
Turkish –Russian
-nr. 6 key buttons: increase, decrease, enter, reset, start, stop
-nr. 1 input for temperature probe KTY13.5/NTC 10KOhm@25°C, ß(25/85)= 3977
-nr. 1 input for pressure transducer (working pressure P1)
-nr. 1 input for auxiliary pressure transducer (internal pressure P2) or analog information from inverter
-nr. 1 input for PTC or Klicson for motor protection (IN8).
-nr. 7 opto isolated digital inputs from 12/24Vac to detect:
IN 1 = emergency stop button
IN 2 = thermal motor
IN 3 = thermal fan
IN 4 = remote start/stop
IN 5 = air filter pressure switch
IN 6 = separator filter differential pressure switch
IN 7 = settable as: door of the electrical cabinet open –control phase relay –generic alarm
-nr. 3 digital inputs for connection to Logika Control phases unit.
-nr. 7 outputs via relay with contact 1.5A AC1 250Vac –6 A AC1 250Vac total
RL1 = line contactor
RL2 = delta contactor
RL3 = star contactor
RL4 = load solenoid valve
RL5 = fan contactor
RL6 = settable as fan contactor, condensate drain, compressor status
RL7 = settable as: alarm, fan contactor, condensate drain, compressor status
- nr. 1 real time clock with buffer battery, around 10 years electrical life
- nr. 1 24Vdc power supply input for PNP outputs
- nr. 1 24Vdc input from inverter to detect inverter fault
- nr. 2 PNP digital output to control the inverter (run and jog command)
- nr. 1 analog output 4÷20 mA for inverter operation
- nr. 2 serial output RS485 for:
connection to other compressor for Master/Slave and/or Multiunit operation
inverter communication
-Check min. and max. power supply to the controller
-Non volatile memory to store setting data, working hours, compressor status, alarm list
-The controller switches OFF due to micro interruption longer than ~ 300 m.s.
Weight: 470 g
Accessories:
- nr. 1 temperature probe KTY 13.5 for detection of the air end temperature: cable in silicone rubber, length 2.5 m,
working range –10 ÷ 130°C, resolution 1°C.
- nr. 1 pressure transducer 4-20 mA for working pressure control: 2 wires, AISI 316L stainless steel membrane,
working range 0 ÷ 15 bar, resolution 0,1bar, precision ± 0,1bar.
- nr. 1 Logika Control phases unit for power supply 230 ÷ 460V three phase

Revision 1 –04.12.2015 5/28
MOUNTING
Use the drawing below as overall dimensions to mount the controller.
WARNING TO THE WIRING OF THE CONTROLLER
1) Respect the working technical features and instructions on the electrical wiring; in special way both the cables of the
temperatures probes and pressure transducers must be isolated from the power cables and proper RC filters must be
placed on the contactors’ coils
2) On the back side of the controller there must be enough space for wiring and connectors.
3) The rear side of the controller must be protected against condensation, oil and dust.
4) Don’t wash the front panel by water injection; clean the front mylar with a soft cloth using soap water.
5) Low voltage and high voltage cables run on separate trunks.
6) The connection cables of temperature probe and pressure transducer must be placed in a trunk separate from the power
cables.
7) The connections cables of digital inputs must be placed in a trunk separate from the power cables.
8) The power cable of controller must NOT be placed in the same trunk of the power cables
DRILLING TEMPLATE
161 mm
106 mm

Revision 1 –04.12.2015 6/28
ELECTRICAL DRAWING AND LEGEND OF THE CONNECTIONS

Revision 1 –04.12.2015 7/28
LEGEND
Terminal M1
Pole 1-2 = power supply 12Vac
Terminal M2 –RS485 FOR CONNECTION MASTER/SLAVE –MULTIUNIT
Pole 1 = 0
Pole 2 = D-
Pole 3 = D+
Pole 4 = +15Vdc (As power supply for a Logik option)
Terminal M3
Pole 1-2 = air end temperature probe
Pole 3-4 = pressure transducer (pole 3 = negative –pole 4 = positive)
Terminal M4
Pole 1 = pole 5 of the control phases (GND)
Pole 2 = pole 1 of the control phases (T)
Pole 3 = pole 2 of the control phases (S)
Pole 4 = pole 3 of the control phases (R)
NOTE: THE GND FROM THE CONTROL PHASES UNIT MUST NOT BE CONNECTED TO EARTH.
IT’S THE GROUND OF THE CONTROLLER AND MUST BE CONNECTED TO GROUND OF THE CONTROL PHASES UNIT
Terminal M5
Pole 1 = IN 1 = emergency stop button (L)
Pole 2 = IN 2 = thermal motor (L)
Pole 3 = IN 3 = thermal fan (L)
Pole 4 = IN 4 = remote start/stop (L)
Pole 5 = IN 5 = air filter pressure switch (L)
Pole 6 = IN 6 = separator filter differential pressure switch (L)
Pole 7 = neutral = N
NOTE: the digital inputs you do not use have to be connected directly to 12-24V otherwise they generate the
related alarm, except IN5 that must not be connected in case you do not use it.
Terminal M6
Pole 1 = RL7 = alarm (configurable)
Pole 2 = RL6 = condensate drain solenoid valve (configurable)
Pole 3 = RL5 = fan contactor (configurable)
Pole 4 = RL4 = solenoid valve
Pole 5 = RL3 = star contactor
Pole 6 = RL2 = delta contactor (configurable)
Pole 7 = RL1 = line contactor
Pole 8 = common = 24 ÷ 230Vac
Terminal M7
Pole 1 = IN 7 = settable as door of electrical cabinet open –control phase relay –generic alarm (L)
Pole 2-3 = IN 8 = PTC or Klicson for motor protection
Terminal M8 –RS485 FOR DRIVE CONNECTION
Pole 1 = 0
Pole 2 = D-
Pole 3 = D+
Polo 4 = 2nd 4/20mA analog input configurable as internal pressure transducer or as analog data coming from the drive:
1. internal pressure transducer: connect to the negative pole of the transducer
2. analog data from drive: connect to a 4/20mA analog output on the drive control board (drive must be set correctly
to give the right information on this output)
Pole 5 = +15V power supply for the internal pressure transducer (first of the above cases): connect to positive pole of the
transducer; not to be connected in case of analog data coming from drive
Terminal M9
These terminals to be connected only to the drive controlled by 4/20mA analog output
Pole 1 = Analog and/or digital GND and DGND from drive
Pole 2 = Inverter fault input, 24Vdc signal coming from drive (normally connected to drive alarm relay)
Pole 3 = 4/20mA analog output computed by Logik26S PID (when activated)
Pole 4 = PNP1 digital output from 24Vdc from drive (when analog output is active this is the run command for the drive)
Pole 5 = PNP2 digital output from 24Vdc from drive (when analog output is active this is the jog command for the drive)
Pole 5 = 24Vdc from drive

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EXAMPLE OF CONNECTION TO SECURITY PRESSURE SWITCH
Alarm related to security pressure switch A21 is joined to the lacking phase to all the digital inputs.
This is a shut off alarm: below you can find the connection drawing both to contactors 24Vac and/or 230Vac.
Contactors 230Vac
If the operation of the contactors and
solenoid valves comes through 230 Vac, the
digital inputs have to be connected to 12
Vac; next to the contact of the pressure
switch, place and energize an auxiliary
relay and put the contact in serie to
12 Vac (L) (see drawing on the right).
When the pressure switch is closed, the
auxiliary relay with contact closed supply
power to the digital inputs; the power
supply of the controller is connected before
the contact of the relay.
When the pressure switch opens, the
auxiliary relay opens power to the digital
inputs; the controller detects all the digital
inputs open and signal the alarm “SEC.
PRESSURE SWITCH”.
Contactors 24Vac
If the operation of the contactors and
soenoid valves come through 24 Vac, the
digital inputs have to be connected to 24
Vac (see drawing on the right); on this
way when the pressure switch opens due
to high pressure, 24 Vac lacks and
deenergize all the contactors, solenoid
valve and digital: the controller detects
all the digital inputs opened and signal
the alarm “SEC. PRESSURE SWITCH”.
I°
12 –0
II°
Security pressure
switch for high
pressure detection
Power supply to
the controller
Power supply to digital
inputs and uses
24 –0
I°
12 –0
II°
Security pressure
switch for high
pressure detection
Auxiliary relay
Power supply to
the controller
Power supply to
the uses
230 –0
Power supply to digital
inputs

Revision 1 –04.12.2015 9/28
CONNECTION SERIAL NET RS485
To connect a serial net you have to pay carefully attention to some executive aspects:
1) Use flexible cable, shielded, twisted 22 AWG type.
2) Connect D- and D+ to two conductors of same couple and 0 to a third one (if available) or both conductors of a
second couple.
3) Connect the cable’s shield to only one end of 0.
4) DO NOT CONNECT the cable’s shield to the electrical ground of the plant.
5) The net MUST NOT BE LONGER than 400 meters.
6) Max connectable units through serial net RS 485 is 32.
7) In case of connection via serial line RS485 you have to set the parameter C08 into menu 04 Compressor setup:
this is the number you need to combine to the recognition of the controller.
8) The units on serial net RS485 must be connected without any reversal: pole D+ to D+, pole D- to D-, pole 0 to 0.
9) In case of connection with more than 2 units it is necessary to provide only one line without any deriving.
At the terminal both starting and ending the net it is possible to place (in parallel to D- and D+) a termination
resistance 120 Ohm.
In the picture below you can see the connection of 4 units on serial net RS485 by using a shielded cable with two
twisted couples.
NOTES ON THE WIRING: wrong wiring can damage both the controller and other devices connected to the
serial port.
WARNINGS TO THE WIRING RS485
1) The cable must be placed into a TRUNK SEPARATED by power cables and any potentially dangerous cables as
lighting plant and so on.
2) DO NOT PLACE signal cables next to power bar, lighting lamps, antennas, transformers;
3) Keep signal cables FAR 2 METERS MINIMUM from units with heavy inductive (distribution cabinet, motors,
inverter).
4) Don’t pull the cables with a strength over 12 Kg; stronger strength can damage the wires and reduce the signal
transmission on the line.
5) DO NOT: twist, knot, crush or fray the conductors.
6) Do not make any joints between lengths of cable: always use only one cable to connect any single unit to each
others. Strip the end part carefully, do not crush the cable next to core-hitches or safety supports.
7) Always respect the position of the colors at the both sides of the connection.
Once the wiring is complete, visually and physically check the cables are undamaged and properly placed

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MAIN VISUALIZATION
Power on and display visualizes the message “Logika Control” “Logik 26-S” for about 3 seconds, then it shift to the main
visualization and the compressor is in OFF status.
The pic. below shows the main visualization
1
.
According the pic. above and related icons, the main visualization can be described as below:
1. General icons, where be present the following:
I01, Condensate drain in operation
I02, Multiunit operation
I03, Master/slave operation
I04, Maintenance messages
2. Alarm or maintenance messages: if an alarm is detected the display visualizes the icon I05, if maintenance timer is
over visualizes icon I04.
3. Start/stop by timer activated.
4. Time (hours and minutes).
5. Icons I12 when fan ON
6. Air end temperature
7. Inverter area: data visualized when output 4/20mA or RS485 inverter are enabled. In case output 4/20mA is
activated the display shows the PID frequency set (F) and eventual data set on the input 4/20mA (parameter
C19). In case of inverter via RS485 all the data from the inverter are visualized: frequency (F), current (I), power
(P) and temperature (T). Data are visualized on the right side (7b) or left side (7a) according the inverter
configuration is on the air end temperature or working pressure.
8. Compressor status: icons from I07 to I13 as below:
Compressor OFF
Witing for safety timer
Pressure set
Remote start/stop open
Compressor ON
Waiting for start/stop by timer (in this case the display visualizes the day of the week and time of the
next ON by timer).
Waiting for internal pressure P2 lower than parameter AP4
9. Pressure area:
Working pressure (BIG) and stop/start pressures.
Aux pressure transducer (if enabled).
Icon I17, motor run
Icon I18, load solenoid valve open
In case of alarm, the below side of the display (7a, 7b and 8) visualizes the alarm message
The controller is provided with 6 key-buttons with following functions: (with reference to the above pic.):
-T1, decrease, select down
-T2, increase, select up
-T3, change or confirm
-T4, reset or back
-T5, stop compressor
-T6, start compressor
1
In a normal operation status, the icons will not be visualized all together: here they are just to show their own position in the display.
1
3
4
7a
2
6
5
9
8
T6
T5
T4
T3
T1
T2
7b