Atlas Air Compressor manual Regulating system on SF Multi, Controlling the compressor

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Instruction book

1.5 Regulating system on SF Multi

SF Multi are provided with an Elektronikon® regulator (Fig. 1.11) to control the compressor.

The following is a short description of the main functions of the regulator. Consult section 8 for a detailed description of all functions.

1.5.1 Controlling the compressor

The Elektronikon regulator keeps the net pressure within programmable limits by starting and stopping the compressor modules, depending on the air consumption. The regulator distributes the running time among the compressor modules, taking into account the availability and number of running hours of each compressor module.

When the compressor has stopped automatically and the net pressure decreases, the regulator will start a compressor module before the net pressure has dropped to the starting pressure to prevent the net pressure from falling under the programmed minimum level.

1.5.2 Protecting the compressor

If one or more compressor modules are shut down due to a protection function a warning message will be shown on the display.

The compressor will be shut down in case temperature switch (TSHH20-Fig. 2.8) trips. See also section 8.3.2.

Warning

Before carrying out any inspection or repair, stop the compressor, switch off the voltage, open the isolating switch and depressurize the compressor.

After remedying, switch on the voltage and press the key “Reset” (F3).

1.5.3 Monitoring components subject to service

A number of service operations are grouped in plans (called Service plans I, A, B and D). Each Service plan has a programmed time interval. If a time interval is exceeded, a message will appear on the display to warn the operator to carry out the service actions belonging to that plan.

1.5.4 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 made inactive. If desired, the function can be activated. Consult Atlas Copco.

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Contents No 1521 Registration code APC SF / 38 Instruction bookInstruction book Skid Tank-mounted Twin Service warning message exists General description Leading ParticularsSF4 Skid Control panel Air outlet valve SF4 Tank-mounted SF8FF Multi Details of a compressor module on SF Tank-mounted Cooling and condensate drain systems Fig Air flowProtecting the compressor Regulating system on SF Skid Tank-mounted TwinAutomatic restart after voltage failure Monitoring components subject to serviceRegulating system on SF Multi Controlling the compressorDesignation Function Control panel FigTabulator key 4-Fig Display keysOperating condition of a compressor module Scroll keys 3-Fig13 Menu flow, SF Multi Selecting a menu14 Electric cabinets, SF Multi Electric cabinet on SF MultiRefrigerant circuit Air dryer on SF Full-Feature FigCompressed air circuit Dimension drawings Figs .1 up to Installation9820 4054 00/1 Dimension drawing, SF 6-8 Multi Dimension drawing, SF 11-15 Multi Instruction book Installation proposal Fig Instruction book Connections Skid Tank-mounted Twin Electrical connectionsGeneral SF Multi TSHH20 Pictographs PictographsStarting Operating InstructionsInitial start-up Stopping Taking out of operation at end of compressor service lifeDuring operation Service plans on SF Multi MaintenancePreventive maintenance schedule for the compressor Before carrying out any maintenance or repairYearly MonthlyCoolers Adjustments and Servicing ProceduresAir filter 1-Figs .7/1.8 Belt exchange/tensioning FigOperating Safety valveTesting Problem Solving Electric cable size for SF 6-15 Multi Principal DataElectric cable size for SF1-8 Overload relays for SF6-15 Multi Overload relays for SF1-8Reference conditions Main fuses for SF1-8Main fuses for SF6-15 Multi Reference conditions/limitations11 SF2-4 145 psi 60 Hz SF1-4 8bar 50 HzSF2-4 10 bar 50 Hz 10 SF1-4 100 psi 60 Hz14 SF6-15 Multi 100 psi 60 Hz 12 SF6-15 Multi 8 bar 50 Hz13 SF6-15 Multi 10 bar 50 Hz SF11 SF15 145 psi 15 SF6-15 Multi 125 psi 60 Hz16 SF6-15 Multi 145 psi 60 Hz SF11 SF15 125 psiMenu-driven control programs Regulator Functions for SF MultiMain screen Function of control programs Program/Function DescriptionElement status screen, typical example Line Indicates RemarksCalling up other menus ProcedureQuick look at actual compressor status Shut-down message exists Status data menuNo message exists Shut-down reset Measured data menu Service warning message existsTest menu Counters menuModifying parameters Modify parameters menuModifying the pressure bands Checking protections for compressor modules Modifying protection settingsService plans Modifying service plansService actions according to Programmed service plan intervals Service plans IntervalsResulting service actions to be carried out Programming Clock function Programming start/stop/pressure band commandsInstruction book To modify a command To activate/deactivate the timerInstruction book To delete commands Adding a command between two existing commandsDeleting a specific start/stop/pressure band command Configuration menuDeleting all commands Deleting all commands related to a specific dayService menu Service plans ABI Saved data menu Regulation settings Minimum Nominal Maximum Setting Programmable settingsConversion List of SI Units Into US/BRITISH Units Service settings Minimum Nominal Maximum SettingOverall Rating Components subject to 97/23/EC Pressure Equipment DirectivePart number Description PED Class Instruction book Instruction book Wnership Data Safety Preca Utions