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User manual 

2920 1456 03 

 

Atlas Copco

 Stationary Air Compressors 

 
 
 

GA18, -30, -37, -45, -50, -55, -75, -90 (W) VSD 

 
 
 

User manual for Elektronikon® II regulator 

 
 
 
1.  This manual must be used together with the instruction books for GA18 up to -90 (W) VSD 

compressors. 

 
 
 
2.  From following serial numbers onwards: 
 

- GA18-30 VSD: AII 297 500 

 

- GA37-55 VSD: AII 355 000 

 

- GA75-90 VSD: AII 494 500 

 
 
 
 
Copyright 2003, Atlas Copco Airpower n.v., Antwerp, Belgium. 
Any unauthorized use or copying of the contents or any part thereof is prohibited.  This applies in 
particular to trademarks, model denominations, part numbers and drawings. 
 
This instruction book meets the requirements for instructions specified by the machinery directive 
98/37/EC and is valid for CE as well as non-CE labelled machines. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

No. 2920 1456 03 

 
(Replaces No. 2920 1456 02) 
 
 

Registration code:

 

APC G18-30 VSD/2002 / 38 / 977 

 

APC G37-55 VSD/2003 / 38 / 975 

 

APC G75-90 VSD/2000 / 38 / 987 

 
 
 
2003-07 www.atlascopco.com 

Summary of Contents for Elektronikon II

Page 1: ...opyright 2003 Atlas Copco Airpower n v Antwerp Belgium Any unauthorized use or copying of the contents or any part thereof is prohibited This applies in particular to trademarks model denominations part numbers and drawings This instruction book meets the requirements for instructions specified by the machinery directive 98 37 EC and is valid for CE as well as non CE labelled machines No 2920 1456...

Page 2: ...status 10 6 Status data menu 11 6 1 No message exists 11 6 2 A shut down message exists 11 6 3 A shut down warning message exists 12 6 4 A service warning message exists 13 6 5 A warning message exists 14 7 Measured data menu 14 8 Counters menu 14 9 Test menu 15 10 Modify params modifying compr motor settings 16 11 Modifying parameters 17 12 Modifying protection settings 18 13 Modifying service pl...

Page 3: ...atic restart after voltage failure made inactive 1 1 Controlling the compressor The regulator matches the air output to the air consumption by speed regulation of the motor The regulator takes into account a number of programmable settings such as net pressure setpoint indirect stop offset direct stop offset proportional band integration time minimum speed minimum stop time maximum speed limit pow...

Page 4: ...rammed time interval If a time interval is exceeded a message will appear on display 12 Fig 2 1 to warn the operator to carry out the service actions belonging to that plan 1 4 Automatic restart after voltage failure The regulator has a built in function to automatically restart the compressor if the voltage is restored after voltage failure For compressors leaving the factory this function is mad...

Page 5: ... compressor 10 Stop button Push button to stop the compressor LED 9 goes out 11 Start button Push button to start the compressor LED 9 lights up indicating that the regulator is operative in automatic operation 12 Display Indicates messages concerning the compressor operating condition a service need or a fault On GA37 VSD 200 V Isolator switch Switch to isolate the compressor from the mains or to...

Page 6: ...the previous menu Mod Modify To modify programmable settings Prog Program To program modified settings Rset Reset To reset a timer or message Rtrn Return To return to a previously shown menu Xtra Extra To find information regarding the installed modules 3 Display keys 3 1 Display 12 Fig 2 1 The display has four lines of 16 characters A typical display is shown in Fig 4 2 It indicates 1 On the firs...

Page 7: ...down or service message to have access to all data collected by the regulator The function keys allow to make the required selection from a menu of possibilities The functions of the keys vary depending on the displayed menu The actual function is abbreviated and indicated on the bottom line of the display just above the relevant key Only the active and relevant functions at a moment are shown 4 M...

Page 8: ...res Speed Loaded Hours Motor Starts Module Hours Accumulated Vol Compressor Out DP Oil Separ Element Outlet Dewpoint Cool Water In Cool Water Out DP Oil Separ Element Outlet Dewpoint Cool Water In Cool Water Out ER Water In ER Water Out Emergency Stop Rem Start Stop Overl Fanmotor Condens drain DD filter PD filter Motor Starts Module Hours Accumulated Vol Setpoint 2 Indir Stop Level Direct Stop Le...

Page 9: ...y Params Modifying the parameters for compr motor settings e g setpoints parameters e g minimum stop time protections e g air temperature shut down level service plans clock functions automatic compressor start stop pressure band commands configuration time date display language Service Calling up service plans and resetting the timers Saved data Calling up the saved data last shut down last emerg...

Page 10: ...ain Help Xtra F1 F2 F3 Fig 5 1 Example of an actual compressor status display Line 1 indicates the automatic or manual operation status of the regulator Auto operation means that the regulator automatically adapts the operation of the compressor i e matching the compressor output to the air consumption Line 2 indicates whether the regulator operates in local control or remote control mode Local co...

Page 11: ...a will be followed by a horizontal arrow Press the tabulator key 2 6 1 No message exists In this case LED 7 is out and the message on the display indicates that all conditions are normal Fig 6 1 All conditions are OK Menu F1 F2 F3 Fig 6 1 Example of a status data screen 6 2 A shut down message exists In case the compressor is shut down LED 7 will blink In case of a shut down due to too high a temp...

Page 12: ...set of fan motor overload 1 Switch off the voltage and remedy the trouble Reset overload relay F15 after cooling off When the shut down condition has disappeared switch on the voltage and press the key Rset 2 Press the keys Menu and Main to return to the Main screen and restart the compressor by means of button I 6 3 A shut down warning message exists A shut down warning level is a programmable le...

Page 13: ...warning screen 2 The indicators are blinking and the service warning message appears 3 Press the key Menu F1 and the tabulator key 2 to select the Status data menu the option Service is blinking 4 Scroll to this option and select it by pressing the tabulator key 2 two options may blink Inputs if the programmed service level of a component is exceeded e g the maximum pressure drop of the oil separa...

Page 14: ...n regarding the actually measured data and the status of a number of inputs such as the motor overload protection Procedure 1 Starting from the Main screen see section 4 2 press the key Menu F1 press the key until the option Measured data is followed by a horizontal arrow press the tabulator key 2 to activate the menu 2 By pressing the key a number of actually measured data can be found see Fig 4 ...

Page 15: ...he compressor has delivered 230 x 1000 m of compressed air If it should be required to modify the value of the indicated timer consult Atlas Copco 9 Test menu Function To carry out a display test i e to check whether the display and LEDs are still intact Procedure 1 Starting from the Main screen see section 4 2 press the key Menu F1 press the key until the option Test is followed by a horizontal a...

Page 16: ... option Compr motor will be followed by a horizontal arrow 3 Press the tabulator key 2 the first item Setpoint 1 and its setting will appear 4 Use the key to scroll until the parameter to be modified is followed by a horizontal arrow Modifying the net pressure setpoints If desired the operator can program two setpoints Setpoint 1 and setpoint 2 1 Consult the steps above to select Setpoint 1 2 The ...

Page 17: ... menu 2 Use the key until the option Parameters is followed by a horizontal arrow 3 Press the tabulator key 2 the first item Fan Mot St Day and its setting will appear Fan Mot St Day Number 240 Menu Mod F1 F2 F3 Fig 11 1 Modify parameters menu 4 To modify this setting press the key Mod F2 the setting will blink 5 The key Lim F2 can be used to find out the limitations for the parameter Use the or a...

Page 18: ...4 2 press the key Menu F1 press the key until the option Modify Params is followed by a horizontal arrow press the tabulator key 2 to activate the menu 2 Use the key to scroll until the option Protections is followed by a horizontal arrow 3 Press the tabulator key 2 the first item Delivery air and its value will appear 4 Use the key to scroll until the parameter to be modified is followed by a hor...

Page 19: ...odification operation 5 The screen shown in Fig 12 1 shows an arrow pointing to the right to call up the screen to modify the shut down warning value Element Outlet C 94 Shdw Max 110 Back Mod F1 F2 F3 Fig 12 3 Modify parameters menu 6 The screen shows that the current temperature is 94 C and that the shut down warning setting is 110 C The modifying procedure is similar to the description above Not...

Page 20: ... should be changed The intervals must not exceed the periods below and must coincide logically Programmed service plan intervals Service plans Intervals Service plan A Every 4000 running hours Service plan B Every 4000 running hours Service plan C Every 8000 running hours Service plan D Every 24000 running hours Resulting service actions to be carried out Service actions according to At Service pl...

Page 21: ...F3 Fig 13 1 Service plan menu 4 The screen shows the actual running hours 2130 5 Press the tabulator key 2 a screen similar to the one below will appear Service Timer Level A hrs 4000 Menu Mod F1 F2 F3 Fig 13 2 Service plan menu 6 The screen indicates that the level for Service plan A is set at 4000 running hours 7 Press the Mod key The key Lim F2 can be used to find out the limitations for the pa...

Page 22: ...day at 18 00 changing over to pressure band 2 On Saturday at 18 00 stopping 1 Starting from the Main screen see section 4 2 press the key Menu F1 press the key until the option Modify Params is followed by a horizontal arrow press the tabulator key 2 to activate the menu 2 Use the key to scroll until the option Clock function is followed by a horizontal arrow Press the tabulator key 2 following sc...

Page 23: ...e the or key to enter the command Start Press the key Prog to program the command 06 15 Start 6 Press the key the right pointing arrow key indicates that the second line is accessible Press the key Mod and modify this line in a similar way to the following command line 06 15 Band 1 7 Press the key Menu F1 and scroll to Friday Thursday Friday Saturday Menu Mod Del F1 F2 F3 8 Programming the command...

Page 24: ...rizontal arrow Press the tabulator key 2 following screen appears Clock Function Not activated Menu Mod Del F1 F2 F3 3 Press the key Mod Not activated starts blinking 4 Press the key Not activated changes into Activated 5 Press the key Prog Important 1 It is necessary to program the start stop pressure band commands in successive order timewise e g 07 30 start 07 30 band 1 08 30 band 2 17 00 stop ...

Page 25: ...Press the tabulator key 2 following screen appears Monday Tuesday Wednesday Menu Mod Del F1 F2 F3 4 Scroll through the display until Saturday is followed by a horizontal arrow Press the tabulator key 2 If necessary scroll through the compressor start stop pressure band commands until the command to be modified is followed by the horizontal arrow on the screen Press the key Mod the first two digits...

Page 26: ...e compressor at 18 00 must be added to the list of Monday 06 15 start 06 15 band 1 3 Press the tabulator key 2 following screen appears Monday Tuesday Wednesday Menu Mod Del F1 F2 F3 4 Scroll through the display until Monday is followed by a horizontal arrow Press the tabulator key 2 Scroll through the compressor start stop pressure band commands until the first empty command line is indicated by ...

Page 27: ... of the list in the example above 18 00 stop and press the key Prog 14 5 To delete a command 1 Starting from the Main screen see section 4 2 press the key Menu F1 press the key until the option Modify Params is followed by a horizontal arrow press the tabulator key 2 to activate the menu 2 Use the key to scroll until the option Clock function is followed by a horizontal arrow Press the tabulator k...

Page 28: ...figuration is followed by a horizontal arrow 3 Press the tabulator key 2 The first option shown is Time If another option is desired scroll through the display using or keys and select it using the tabulator key 2 4 In case of option Time the second line on the screen indicates the actual setting e g 14 30 5 If it is desired to modify the time press key Mod If not press key Menu to return to the s...

Page 29: ...ator key 2 to activate the menu 2 Use the key to scroll until the option Configuration is followed by a horizontal arrow 3 Press the tabulator key 2 The first option shown is Time Scroll through the display using or keys until the option C C M is followed by a horizontal arrow and select it using the tabulator key 2 Following screen is shown CCM Local control Menu Mod F1 F2 F3 Fig 15 1 Compressor ...

Page 30: ...hen the service plan interval is reached a message will appear on the screen See section 6 Example Programmed service plan intervals ex factory Service plans Intervals Service plan A Every 4000 running hours Service plan B Every 4000 running hours Service plan C Every 8000 running hours Service plan D Every 24000 running hours Resulting service actions to be carried out Service actions according t...

Page 31: ...he screen shows that the total compressor running time is 7971 hrs 3 Press the tabulator key 2 Next Timer Level A B C hrs 8000 Back Rset F1 F2 F3 Fig 16 2 Service menu The screen shows that the next service plans to be carried out are plans A B and C and that these plans are to be carried out every 8000 running hours 4 Press the key to find out which service plans were carried out previously Previ...

Page 32: ... Life time hours are shown i e the number of hours elapsed since initial programming ex factory This counter is not taken into account 17 Saved data menu Function To call up some compressor data saved by the regulator These data are Last shut down data Last emergency stop data Procedure 1 Starting from the Main screen see section 4 2 press the key Menu F1 press the key until the option Saved data ...

Page 33: ...A30 VSD Siemens motor rpm 2000 2000 4000 GA30 VSD ABB motor rpm 1870 1870 2500 GA37 45 50 55 VSD rpm 900 900 2000 GA75 VSD rpm 700 700 1000 GA90 VSD rpm 600 600 1000 Max RPM reduction 75 100 100 18 2 Parameters Minimum Nominal Maximum Minimum stop time GA18 up to GA55 VSD sec 5 2 5 30 GA75 VSD 200 230 V sec 10 2 10 30 GA75 VSD 380 575 V sec 5 2 5 30 GA90 VSD sec 5 2 5 30 Power recovery time sec 10...

Page 34: ...to injectfluid hr 12 4000 12 compressors filled with HD Roto fluid hr 12 8000 12 Service plan B running hours hr 12 4000 12 Service plan C running hours hr 12 8000 12 Service plan D running hours hr 12 24000 12 Footnotes chapter 18 1 The settings for the Proportional band and Integration time are determined by experiment Altering these settings may damage the compressor Consult Atlas Copco 2 Once ...

Page 35: ...yer to reach the dewpoint temperature 10 Is the period after starting which must expire before generating a warning This setting should be less than the setting for delay at signal 11 Recommended minimum setting 70 C For testing the temperature sensor this setting can be decreased to 50 C Reset the setting value after testing 12 Always consult Atlas Copco in case any timer setting should be change...

Page 36: ...User manual 2920 1456 03 36 Notes ...

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