Altronic VariSpark CPU-XL Operating Instructions Manual

Digital ignition system with enhanced display

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Operating Instructions

CPU-XL VariSpark Digital Ignition System with Enhanced Display

Form CPU-XL VariSpark IOM 07-21

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Summary of Contents for Altronic VariSpark CPU-XL

Page 1 Operating Instructions CPU-XL VariSpark Digital Ignition System with Enhanced Display Form CPU-XL VariSpark IOM 07-21...
Page 2 Logic/Display Module. The CPU-XL ignition fires in the Module and the 791401-2 Coil. same order as all other Altronic digital ignition systems. The first firing event is the The -1 versions of these parts are for one following the reset.
Page 3 6.0 MOUNTING FLYWHEEL GEAR/DRILLING FLYWHEEL HOLES 6.1 The Altronic CPU-XL system requires a source of angular position pulses from the engine crankshaft. This can be a flywheel ring gear, a separately provided gear or specially drilled holes in the flywheel. The source of position pulses must meet the following requirements: Must be ferrous material, diameter of 18"...
Page 4 24 AWG, UL style 1015 wire or shielded cable for these connections; the 24 AWG wire is available from Altronic under part no. 603102 (black) or 603103 (white). A. SHUTDOWN INPUT (terminal 4): Use to stop the ignition for engine shutdown.
Page 5 NOTE: This is a 5-volt low-level signal. G: RS-485: The terminals: 5(GND), 6(–), and 7(+) provide an RS-485 port for external control VIA PC or PLC. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 6 Logic/Display Module. The CPU-XL ignition always fires in the same order as all other Altronic digital systems. The first firing event is the one following the reset. The firing events are brought out in order of occurrence (1, 2, 3, 4…) on the 20-position terminal strip inside the Junction/...
Page 8: Primary Wiring
15.2 The spark plug leads should be fabricated from silicone insulated 7mm cable with suitable terminals and silicone spark plug boots. The use of leads with resistor spark plug boots (Altronic series 59320x-xx) is recommended to minimize interference from emitted RFI on the operation of other nearby electronic equipment. Another option is the use of suppression ignition cables.
Page 9: Input/Output Wiring
RX LED: flashes to indicate that the ignition unit is receiving on the RS-485 serial link. ALARM LED: turns on to indicate that a warning or fault is present. The ALARM LED flashes when an acknowledged warning is present. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 10: Understanding The Home Screen
19.5 The STALLED message is displayed when a loss of rotation is detected after the ignition is firing and neither a SHUTDOWN or FAULT has occurred. This signifies that the engine has stopped without any detected cause from the ignition system. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 11 Out switch (switch opens), and by displaying the Fault message and changing the screen background color to red. The various types of diagnostic faults are described in section 25.5. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 12 19.9 From the HOME SCREEN, pressing the NEXT key allows you to cycle through the configuration comments which describe the configuration of the ignition system. PRESS TO NEXT GO TO NEXT The configuration screens are shown starting on the next page. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 13 CURRENT LOOP CURVE DESCRIPTION AT 4mA 0° RETARD AT 20mA 24° RETARD USER SPECIFIED DESCRIPTION NEXT RPM RETARD CURVE DESCRIPTION YES/NO Status RPM RANGE Retard Range 0/1275 10/0 ret NEXT CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 14 NEXT SPECIAL USER COMMENTS AREA #2 USER SPECIFIED COMMENTS NEXT PRESS NEXT TO RETURN TO HOME SCREEN NEXT PRESS ESC. FROM ANY SCREEN TO RETURN TO HOME SCREEN CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 15 REPRESENTS THE CYCLE TYPE OF THE ENGINE 2 = TWO-CYCLE 4 = FOUR-CYCLE REPRESENTS THE ALTRONIC PATTERN CODE (SEE FORM CPU-XL VA- RISPARK AL) REPRESENTS THE NUMBER OF GEAR TEETH OR HOLES TO BE SENSED REPRESENTS A DESIGNATOR FOR CPU-XL VARISPARK VERSION 1 REPRESENTS THE CURRENT LOOP RETARD CURVE TYPE A = 0°...
Page 16 20.0 ADJUSTING GLOBAL RETARD 20.1 Global retard is an adjustment affecting the timing of all cylinders equally. This adjustment can be equated to the manual timing switch of the Altronic CPU-XL VariSpark system. Adjustments made as described below will be in effect until another adjustment is made.
Page 17 21.1 Several options exist with regard to global timing modes. Once the global timing mode menu is entered as described below, the status of each option can be viewed and changed. FROM PRESS TIMING ⬆ THEN AT PRESS ⬇ THEN AT PRESS CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 18 RPM. To configure the RPM retard curve, refer to the Programming Instructions, Form CPU-XL VariSpark PI. AT THE NOTE: DISPLAY NEXT SHOWS RPM OPTION MAP OFF. SCREEN ⬆ ⬇ TURN TURN NEXT EXIT NEXT OPTION CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 19 1 step retard can be seen during adjustments (if the Misc Input terminal is grounded). AT THE NEXT OPTION SCREEN NOTE: 1 STEP RETARD NOT CONFIGURED. ⬆ ⬇ TO GO NEXT INCREASE DECREASE BACK TO EXIT FIRST CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 20 DIAGNOSTIC RETURN CYLINDER SELECT OFFSET TO HOME GRAPH SCREEN IADVANCE TO THE TO RESET THE RESET NEXT CYLINDER CYLINDER TIMING TIMING IN THE FIRING ORDER TO EEPROM STORED VALUE CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 21 Reference Section 22.3 to adjust individual offsets. AT THE FIRST OPTION SCREEN PRESS TO PRESS PRESS TO ENTER NEXT SAVE FOR NEXT EXIT OFFSETS OPTION CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 22 23.4 The next screen allows all temporary cylinder timing to be reloaded from the EEPROM. PRESS TO PRESS TO RETURN NEXT ENTER RELOAD FOR NEXT TO THE HOME OFFSETS SCREEN SCREEN CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 23 NOTE: Adjustment of this parameter should be done while individual cylin- der offsets are all at zero. ⬆ ⬇ NEXT INCREASE DECREASE NEXT EXIT OPTION CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 24 PROTECTION menu shown above will appear. If the password is not known, press the ESC key to exit or the NEXT key to go on to the next setup menu. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 25 1-N -Fire individual cylinder; the cylinder’s label and connection will be displayed. If the firing is detected at a different location or not detected at all, an asterisk ‘*’ will be displayed next to the location. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 26 9600, 19200, 38400, 57600, 115200. The DEBUG mode is used by the factory for testing purposes. 24.9 The CLOCK SETUP menu is used to set the desired calendar date and time used by the datalog feature of the Logic/Display Module. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 27 The DATALOG SETUP menu appears after the COMMUNICATION SETUP menu. If datalogs are not being used, press the NEXT key to proceed to the CYLINDER LABELS menu. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 28 24.11 The CYLINDER LABELS menu allows the user to associate two alphanumeric cylinder designators with the output lead on the CPU-XL VariSpark. PRESS TO PRESS TO PRESS TO NEXT ACCESS GO TO THE EXIT ENTER THE MENU NEXT MENU CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 29 PRESS TO ATTEMPT A HARD-CODED TO VERIFY THE RESET DIAG EXIT DEFAULT THAT PROGRAMMED ENABLES ALL ORDER (MUST BE THE CYLINDERS DONE ON A RUNNING AND COILS ENGINE - SEE BELOW) CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 30 This has no effect on the engine operation. To verify the firing order: FROM PRESS DIAG The system will verify the fire order: CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 31 ENTER It will then detect and verify the fire order: If the detection fails, it will display the following message: And reset the fire order to the hard-coded default. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 32 LCD backlight turns yellow. 25.3 If the Alarm Out switch is being used to turn on an audible alarm or flasher, the user can acknowledge the alarm as described below. PRESS ALARM CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 33 When too many gear-tooth pulses are seen without a reset pulse. When there are no Hall-effect pickup pulses, or when the pick- ups are not synchronized. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 34 Output Module (rails 3 and 4) has gone critically too high or too low. This indicates either a bad power supply, or a blown fuse (located in the Junction/Diagnostic Module). CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 35 This screen indicates that the diagnostics have identified no current draw on the master coil primary of cylinders 1R and 2R. This normally indicates faulty wiring or a failed coil. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 36 This screen indicates that diagnostics have detected that the output of the master coils of cylinders 2R and 3L are firing with significant cycle-to-cycle variation. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 37 Output Module (rails 1 and 2) has deviated outside of the normal operating range. This can result from poor wiring, an inadequate power supply, or a discharged/weak supply battery. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 38 Clears all diagnostic faults from memory. Clears a latched shutdown condition when the input is no longer grounded. Causes temporary cylinder timing offsets to be overwritten from EEPROM memory. Resets internal communication statistics. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 39 DIAGNOSTIC SCREEN SCREEN 26.3 Additional information is accessible by authorized technicians. This information is protected by a hard-coded password. This prevents unauthorized access to various parts of the system: CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 40 This screen displays the software version and name for the Junction/Diagnostic Module and Logic/Display Module. PRESS TO GO TO PRESS TO GO TO “VERSION INFORMATION” ENTER HOME SCREEN SCREEN CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 41: From The Home Screen
ORDER ORDER CYL. CYLINDER TO VIEW TO GO TO TO GO TO CURRENT DIAGNOSTIC CYLINDER EXIT TIMING CYLINDER OFFSET TIMING GRAPH TO GO TO NEXT CYL IN FIRING ORDER CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 42: Diagnostic Reset
(CAVG - EAVG) > user programmable threshold (Typ. 15) CPU-XL VariSpark PI. Low From Engine (EAVG - CAVG) > user programmable threshold (Typ. 15) High Variation COV COV > User programmable threshold (Typ. 30) CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 44 This test will identify a high voltage demand condition which may result, for example, from worn spark plugs or poor air-fuel ratio control. To disable, set to 255. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 45 28.6 If the COV reference number is greater than the HI VARIATION COV threshold, a diagnostic warning for that cylinder will occur. This test will identify a cylinder whose cycle-to-cycle voltage demand has become erratic. Default = 30 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 46 PRESS TO VIEW THE PRESS TO ADJUST THE CURRENT SELECTED CURRENT SELECTED CYLINDER CYLINDER SPARK OFFSET PRESS TO ADJUST THE PRESS TO EXIT TIMING CURRENT SELECTED CYLINDER TIMING OFFSET CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 47 Pressing ENTER the second time will display the é and allows the user to change the zoom level using the arrow keys. Pressing ENTER a third time exits the adjustments. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 48: Press Enter
This RPM data is what is recorded by the ignition system and should not be used in place of a tachometer or other high precision device. The RPM data is updated every 640ms during normal engine operation. FROM PRESS ENTER CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 49 When the arrows are üÇ (up and down), using the ↓↑ (up/down) arrow keys will adjust the scale of the graph in the Y direction (RPM). This change is stored in EEPROM memory. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 50 When the arrows are üÇ (up and down), using the ↓↑ (up/down) arrow keys will adjust the scale of the graph in the Y direction (RPM). This change is stored in EEPROM memory. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 51 SELECTED OPTION OPTION If a previous ignition backup has been stored in the display, an overwrite confirmation is displayed PRESS TO PRESS TO CONTINUE ENTER EXIT WITH THE BACKUP CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 52 The second phase is to read the ignition again for verification. PRESS TO ABORT After reading and verifying, the contents are written to the eeprom of the Logic/ Display Module. Done. PRESS TO EXIT CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 53 FROM PRESS AUTO WARNING: THE IGNITION MUST BE SHUT DOWN IN ORDER TO PROGRAM THE IGNITION EEPROM. ⬆ THEN THEN ENTER PRESS TO PRESS TO ENTER CONTINUE EXIT PROGRAMMING CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 54 The Logic/Display Module now writes the eeprom contents of the CPU-XL VariSpark ignition. Next, the Logic/Display Module will read back what was written for verification. With verification complete, the ignition is reset. Done. PRESS TO EXIT CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 55 The Logic/Display Module will write the configuration to the ignition EEPROM. Next, the Logic/Display Module will read back what was written in order to verify that it is correct. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 56 30.4 Restoring the CPU-XL Configuration from the ignition image. NOTE: After the CPU-XL ignition FROM PRESS image has been programmed (section NEXT 30.2) the configuration must be restored from the ignition image. THEN THEN ENTER CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 57 The Logic/Display Module will read the configuration from the ignition EEPROM. Next, the Logic/Display Module will read back what was written to verify that it is correct. With verification complete, the configuration will be updated. Done. PRESS TO EXIT CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 58 2- and 4-stroke cycle engines modified for enhanced combustion. CURRENT 31.4 SPARK #4: A long duration spark event featuring increasing current. VOLTAGE CURRENT NOTE: Waveforms shown are for illustrative purposes only. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 59 VOLTAGE CURRENT 31.8 SPARK #8: A long duration, lower-current spark profile that also offers maximized spark plug life. VOLTAGE CURRENT NOTE: Waveforms shown are for illustrative purposes only. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 63 TO GO BACK a diagnostic warning and the current loop will NEXT THE VALUE TO THE NEXT TO THE have no effect on the spark number. MENU HOME SCREEN CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 64 10001 to 10064 can be made which will return all 64 values as a group of 8 bytes. These registers also support an Altronic custom function 102 which will return a descriptive label for each specific register. The custom label function...
Page 65 HIGH COV 1M REG10148 HIGH VOLTAGE 4M REG10105 PRIMARY OPEN 1S REG10106 Spare 1S REG10149 NO SECONDARY SPARK 4M REG10150 HIGH FROM ENGINE AVG 4M REG10107 LOW VOLTAGE 1S CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 66 NO PRIMARY CURRENT 9S REG10191 LOW FROM ENGINE AVG 6S REG10234 spare 9S REG10192 HIGH COV 6S REG10235 LOW VOLTAGE 9S REG10193 NO PRIMARY CURRENT 7M REG10236 HIGH VOLTAGE 9S CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 67 REG10277 NO SECONDARY SPARK 12M REG10320 HIGH COV 14S REG10278 HIGH FROM ENGINE AVG 12M REG10321 NO PRIMARY CURRENT 15M REG10279 LOW FROM ENGINE AVG 12M REG10322 spare 15M CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 68 REG10363 LOW VOLTAGE 17S REG10406 HIGH FROM ENGINE AVG 20M REG10364 HIGH VOLTAGE 17S REG10407 LOW FROM ENGINE AVG 20M REG10365 NO SECONDARY SPARK 17S REG10408 HIGH COV 20M CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 69 EEPROM CHECKSUM FAIL ACK'D REG10498 SECONDARY COIL CURRENT S6 REG10456 FAIL DETECT DISP BOARD ACK'D REG10499 SECONDARY COIL CURRENT S7 REG10457 PRIMARY OPEN ACK'D REG10500 SECONDARY COIL CURRENT S8 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 70: Analog Input
Label support Modbus standard function 4. These registers also REG10501 SECONDARY COIL CURRENT S9 support an Altronic custom function 104 which will return a descriptive label for each specific register. The custom label REG10502 SECONDARY COIL CURRENT S10 function can be used to reduce the need for the Modbus...
Page 71 REG30120 FIRE DELAY COIL 3S REG30078 COV 2S REG30121 FIRE DELAY COIL 4M REG30079 COV 3M REG30122 FIRE DELAY COIL 4S REG30080 COV 3S REG30123 FIRE DELAY COIL 5M CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 72 MINIMUM SEEN COIL 6M REG30208 MAXIMUM SEEN COIL 7S REG30166 MINIMUM SEEN COIL 6S REG30209 MAXIMUM SEEN COIL 8M REG30167 MINIMUM SEEN COIL 7M REG30210 MAXIMUM SEEN COIL 8S CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 73 InStat 113-128 REG30291 Label03 REG30249 InStat 129-144 REG30292 Label04 REG30293 Label05 REG30250 InStat 145-160 REG30294 Label06 REG30251 InStat 161-176 REG30295 Label07 REG30252 InStat 177-192 REG30253 InStat 193-208 REG30296 Label08 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 74 Label87 REG30333 Label45 REG30376 Label88 REG30334 Label46 REG30377 Label89 REG30335 Label47 REG30378 Label90 REG30336 Label48 REG30379 Label91 REG30337 Label49 REG30380 Label92 REG30338 Label50 REG30381 Label93 REG30339 Label51 REG30382 Label94 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 75 Label98 all 64 values as a group of 8 bytes. These registers also REG30387 Label99 support an Altronic custom function 101 which will return a descriptive label for each specific register. The custom label REG30388 Label100 function can be used to reduce the need for the Modbus...
Page 76 RESERVED REG00122 REG00123 Datalog Power On Erase REG00124 Datalog Continue Log At Stop REG00125 Datalog Track Timing Change REG00126 SLI Password Protect REG00127 4-20MA SPK MAP EN REG00128 ALARM CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 77 3, and can be written using function 6 (individual), or function 16 (multiple). These registers also support an Altronic custom function 103 which will return a descriptive label for each specific register. The custom label function can be used to reduce the need for the Modbus master to maintain a current listing of all of the register labels for each unit.
Page 78 COIL DIAG. OFF. 15S deg*10 REG40079 COIL DIAG. OFF. 16M deg*10 REG40080 COIL DIAG. OFF. 16S deg*10 REG40081 COIL DIAG. OFF. 17M deg*10 REG40082 COIL DIAG. OFF. 17S deg*10 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 79 CYL POSITION MAP TO FIRE 13 REG40122 CYL POSITION MAP TO FIRE 14 REG40123 CYL POSITION MAP TO FIRE 15 REG40124 CYL POSITION MAP TO FIRE 16 REG40125 CYL POSITION MAP TO FIRE 17 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 80 Value Protect Password (Keys) 65535 REG40165 Value Protect Password (Keys) 65535 REG40166 Value Protect Password (Keys) 65535 REG40167 Value Protect Password (Keys) 65535 REG40168 Value Protect Password (Keys) 65535 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 81 OVERFLOW The master has sent an otherwise valid request, but the request length exceeded the size of the internal request buffer. The maximum request length supported is 270 bytes. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 82 FIGURE 11: WIRING DIAGRAM – CPU-XL VARISPARK LOGIC/DISPLAY MODULE FIGURE 12: SHIELDED HARNESS (293030) FIGURE 13: SHIELDED HARNESS (793101) FIGURE 14: SHIELDED HARNESS (793102) FIGURE 15: TIMING CURVE, 4–20mA FIGURE 16: DC POWER HOOKUP CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 83 Rail 4 Rail 2 Rail 3 72º 132º 288º 348º Logic/Display Module input Junction Box Rail 1 Rail 4 Output Module 1 Output Module 2 Rail 2 Rail 3 CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 85 OUT 2 FIGURE 4: CPU-XL VARISPARK JUNCTION/DIAGNOSTIC MODULE MOUNTING DIMENSIONS 7.73 4.45 6.25 TO COIL TO COIL RAIL “a” RAIL “b” 19-PIN FROM JUNCTION/DIAGNOSTIC MODULE (OUT 1 OR OUT 2) CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...
Page 97 FIGURE 16: DC POWER HOOKUP D.C. POWER SOURCE REGULATOR BATTERY ALTERNATOR BATTERY SWITCH RATING: CHARGER BATTERY 20 AMP MIN. FUSE RATING: 20 AMP POWER SUPPLY POWER SUPPLY SPEC: SEE CHART BELOW. CPU-XL VariSpark IOM 07-21 All rights reserved © ALTRONIC, LLC 2021...

Altronic VariSpark CPU-XL Operating Instructions Manual

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Related Manuals for Altronic VariSpark CPU-XL

Summary of Contents for Altronic VariSpark CPU-XL

Page 8: Primary Wiring

Page 9: Input/Output Wiring

Page 10: Understanding The Home Screen

Page 41: From The Home Screen

Page 42: Diagnostic Reset

Page 48: Press Enter

Page 70: Analog Input