How “OIL” Activation of current overload works on ATS48 Soft Starter.

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If R3 is set to AIL, then R3 is activated only if OIL is set to ALA and If the motor current exceeds an adjustable threshold LOC for a period of time longer than an adjustable value tOL.

Example: ---
Relay r3 = AIL
OIL Activation of current overload = ALA
LOC Current overload threshold = 120% of the In (nominal motor current)
tOL Current overload time = 6 sec.
In =Nominal motor current = 30Amp

If the motor current exceeds an adjustable threshold LOC (120% of 30 = 36 Amp) for a period of time longer than an adjustable value tOL (6 sec) then R3 will be activated.