Instructions and Advices to use the electronic controller Logik 25-S ORIGINAL INSTRUCTIONS (INDUSTRIAL CONTROL EQUIPMENT) 39UG FILE: E316817 04.24.13 Rev. 0.
INDEX CAUTIONS Page 3 TECHNICAL FEATURES Page 4 MOUNTING Page 5 ELECTRICAL DRAWINGS AND LEGEND OF THE CONNECTION Page5 CONNECTION THROUGH SERIAL PORT RS232 Page 8 CONTROL PANEL Page 9 MENU FLOW Page 10 MAIN MENU Page 11 SETTING °C/F°, BAR/PSI, LANGUAGE Page 11 VISUALIZATION AND SETTING OF THE PARAMETERS USER LEVEL Page 12 ENTER THE PASSWORD Page 12 VISUALIZATION OF THE MENU Page 12 VISUALIZATION AND SETTING OF THE PARAMETERS Page 12 MENU 0 = WORKING PRESSURES Page 13 MENU 3 = TEM
CAUTIONS THE LOGIK 25-S IS AN INDUTRIAL CONTROL EQUIPMENT (NOT A SAFETY INSTRUMENT) FOR THE OPERATION OF A SCREW COMPRESSOR. 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.
TECHNICAL FEATURES - Industrial control equipment for the operation and management of screw compressors only; don’t mount and use in explosive room. - In accordance to CE regulation: Low tension: 2006/95/CE Safety: EN 60730-1 (General regulations) EMC 2004/108/CE - In accordance to UL 508 (FILE #: E316817). - Inputs and outputs via terminal-block board to wires (300V, 15A, 18-14AWG).
MOUNTING Use the drawing below as overall dimensions to mount the controller. 106 mm OVERALL DIMENSIONS 161 mm ELECTRICAL DRAWING AND LEGEND OF THE CONNECTIONS NOTES ON THE CONNECTIONS 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.
LEGEND Terminal M1 Pole 1-2 = power supply 12Vac Terminal M2 – RS 232 Pole 1 = GND Pole 2 = RX Pole 3 = TX Pole 4 = +12Vdc 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.
EXAMPLE OF CONNECTION TO THE SECURITY 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”.
CONNECTION THROUGH SERIAL PORT RS232 Connection Master – Slave LOGIK 25-S / LOGIK 25-S 4 4 +V TX 3 3 TX RX 2 2 RX GND 1 1 GND +V Unit nr.1 Unit nr.
INSTRUCTION FOR SERIAL CONNECTION RS232 AND/OR RS485 NOTES ON THE WIRING: wrong wiring can damage both the controller and other devices connected to the serial port. Be careful to the following technical points below: 1. Use flexible, twisted pair, earth shielded cable, type 22 AWG. 2. The total length of the net has to be no more than: - 5 m for serial connection through RS232 - 400 m for serial connection through RS485 3. In serial connection RS485 the maximum devices connectable are 32 units.
MENU FLOW AND VISUALIZATION OF THE PARAMETERS °C/°F – B/P- LANGUAGE 8,5 bar 85°C OFF 8,5 bar 85°C COMPRESSOR STATUS I 0) WORKING PRESSURES 6) OIL – FILTERS / HOURS (visualization only) 7) WORKING HOURS 9) ALARMS 11) COMPRESS. CONFIG. PASSWORD Nr. 14) CLOCK TIMER PASSWORD Nr. SERVICE 1 = 22 PASSWORD Nr. SERVICE 2 = 4444 PASSWORD Nr.
MAIN MENU Power ON the compressor and the LCD visualizes the main menu where: a) on the first row, working pressure and air end temperature probe; b) on the second row, compressor status: OFF = compressor ready to start by the Start button I ; IN SET = compressor in stand by for pressure set reached; LOAD RUNNING = compressor working; UNLOAD RUNNING X SET = compressor running unload for pressure set reached; UNLOAD RUNNING (blinking) = compressor is going to stop; OFF BY REMOTE STOP = contact of remote st
VISUALIZATION AND SETTING OF THE PARAMETERS USER LEVEL In the main menu, pushing the button the LCD visualizes the menu 0 “WORKING PRESSURE”; again by the button flow other menu down and by the button flow them up; after the visualization of the last menu, the LCD shift back to the main menu. Once the menu has been selected, pushing the button enter into the programming or visualization of the pertinent parameters.
MENU 0 = PRESSURES Function Description Setting values Default Password level WP1 Top range transducer 15 ÷60 15 3 WP2 High press. alarm (WP3+0,5) ÷ (W P1-0,5 ) 11,0 bar 2-3 WP3 Stop pressure (WP4+0,2) ÷ (WP2-0,2) 10,0 bar 0-1-2-3 WP4 Start pressure 3 ÷ (WP3-0,2) 8,5 bar 0-1-2-3 WP5 Start press. slave 2,8 ÷ (WP4-0.2) 8,3 bar 0-1-2-3 WP6 Offset -2,0 ÷ +2,0 0 bar 2-3 NOTE: the parameter WP5 is visualized only if the compressor has been set for Master/Slave operation (see menu 11 COMPRESS. CONFIG.).
a) If you need to set a new value, push the button set the new value and confirm it by and the first character starts blinking; by the button and/or ; automatically the next character starts blinking: set all the next character according the same procedure for the first one. Confirming the last character the new value is loaded into the memory and the LCD shift back to the message selected automatically.
c) if Maintenance mode has been confirmed, you enter into a menu to select YES/NO and set the way to maintenance. YES: the compressor is excluded by the multiunit operation, it shifts to standing alone operation so you can carry out the normal maintenance. MENU 9 = ALARMS Memory of the alarms: visualization of he progressive number, date and time the alarm has been detected and pertinent cause.
MENU 11 = COMPRESS. CONFIG.
MENU 12 = CLOCK TIMER (use password 666666) Set the automatic start and stop of the compressor. On the first row the LCD visualizes the message “OFF – ON” (OFF blinking); by the button and/or select: OFF: if you need to start and stop the compressor by the pertinent buttons; confirming this selection by the button , the LCD shift back to the message “CLOCK TIMER”.
MENU 13 = CHANGE PASSWORD By the button (Password level 2-3) confirm the menu and the LCD visualizes the message “PASSWORD N°1-2-3” with 1 blinking(the possibility of modification depends on the password level entered).
WARNINGS (VISUAL ALARMS) Code Description 35 36 37 SETTING DATA FAILURE AIR FILTER MULTIUNIT FAILURE 39 LOW VOLTAGE 40 HIGH VOLTAGE 41 CLOCK FAILURE 42 47* RS232 FAILURE MAX. STARTS/HOUR Cause Default data loaded Air filter pressure switch closet (IN5) No communication to master or master’s transducer failure Power supply to the controller lower than 11.6Vac with automatic reset when the voltage rise to 12Vac Power supply to the controller over 14.
HOW LOGIK 25-S CONTROLS THE COMPRESSOR Safety time Wt5 Pushing the stop button 0 , the compressor stops according the following procedure: a) if the compressor is loading, it changes into unload run for the time set on timer Wt5; during this time the restart is accepted by the button I ; when the timer Wt5 is elapsed, the compressor stops and the LCD visualizes the message “OFF”; b) if the compressor is unloading and the timer Wt4 is higher than Wt5, once the timer Wt4 is elapsed, the compressor stops a
Thermoregulation of the fan (RL5) When the delta contactor is powered: a) air end temperature equal or higher than WT3 = RL5 ON b) air end temperature below (WT3 – WT4) = RL5 OFF NOTE: on the right side of the upper row of LCD the character “F” indicates each time the fan is in operation.
MASTER/SLAVE OPERATION After the two compressors have been connected through serial port RS232 on the terminal M2 with length not longer than 5 m (for longer distances use line converter RS 232/485): 1) select the menu 11 “COMPRESS. CONFIG.” and confirm it by the button 2) by the button select “M/S OPERATION” and confirm by the button ; .
WARRANTY TERMS 24 (twenty-four) months from the production date printed on the label of the serial number. Temperature probe is not included in the warranty terms. Both working and technical features of the controller must be fully respected: the warranty declines if the controller has been opened or repaired by unauthorized personnel.
