Before remedying, consult the Safety precautions.
Shut-down warning
A shut-down warning level is a programmable level below the shut-down level.
If the compressor element outlet temperature exceeds the programmed shut-down warning level, a message
will appear on display (1) and general alarm LED (2) will light up, to warn the operator that the shut-down
warning level is exceeded.
The message disappears as soon as the warning condition disappears.
Service warning
A number of service operations are grouped (called Service plans A, B, C, ...). Each Service plan has a
programmed time interval. If a time interval is exceeded, a message will appear on display (1) to warn the
operator to carry out the service actions belonging to that plan.
Warning
A warning message also appears if:
• On Full-Feature compressors, the dewpoint temperature is too high in relation to the ambient
temperature.
Automatic restart after voltage failure
The regulator has a built-in function to automatically restart the compressor when the voltage is restored
after voltage failure. This function is deactivated in compressors leaving the factory. If desired, the function
can be activated. Consult the Atlas Copco Customer Centre.
If activated, and provided the regulator was in the automatic operation mode, the
compressor will automatically restart if the supply voltage to the module is restored
within a programmed time period.
The power recovery time (the period within which the voltage must be restored to have
an automatic restart) can be set between 10 and 3600 seconds or to ‘Infinite’. If the
power recovery time is set to ‘Infinite’, the compressor will always restart after a voltage
failure, no matter how long it takes to restore the voltage. A restart delay can also be
programmed, allowing e.g. two compressors to be restarted one after the other.
Instruction book
API603130 25
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