For compressors with integrated dryer: Minimum
setting
Factory
setting
Maximum
setting
Delay at signal sec 0 3 10
Delay at starting sec 0 255 255
Service plan
Also see section Preventive maintenance schedule.
Consult Atlas Copco if a timer setting has to be changed. The intervals must not exceed the nominal
intervals and must coincide logically. See section Modifying service plans.
Minimum
setting
Factory
setting
Maximum
setting
Service plan A (operating hours) hr 4000
Service plan B (operating hours) hr 4000
Service plan C (operating hours) hr 8000
Terminology
Term Explanation
ARAVF Automatic restart after voltage failure. See section Elektronikon regulator II.
Compressor
element outlet
The regulator does not accept illogical settings, e.g. if the warning level is programmed
at 95 ˚C/203 ˚F, the minimum limit for the shut-down level changes to 96 ˚C/204 ˚F. The
recommended difference between the warning level and shut-down level is 10 ˚C/18 ˚F.
Delay at shut-
down signal
Is the time for which the signal must exist before the compressor is shut down. If it is
required to program this setting to another value, consult Atlas Copco.
Oil separator Use Atlas Copco oil separators. The recommended maximum pressure difference is 1
bar/15 psi.
Power recovery
time
Is the period within which the voltage must be restored to have an automatic restart. Is
accessible if the automatic restart is activated. See Elektronikon II regulator. To activate
the automatic restart function, consult Atlas Copco.
Minimum stop
time
Once the compressor has automatically stopped, it will remain stopped for the minimum
stop time, whatever happens with the net air pressure. Consult Atlas Copco if a setting
lower than 20 seconds is required
Unloading/
Loading pressure
The regulator does not accept illogical settings, e.g. if the unloading pressure is
programmed at 7.0 bar(e)/101 psig, the maximum limit for the loading pressure changes
to 6.9 bar(e)/100 psig. The recommended minimum pressure difference between
loading and unloading is 0.6 bar/9 psig.
Instruction book
52 API603130
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