Chapter 5: Detailed description of parameters
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In general, set the wake-up frequency equal to or higher than the sleep frequency. If the
wake-up and sleep frequency is set to 0, sleep and wake-up are off.
If the sleep function and the PID source are active, PID sleep mode is performed according
to parameter PA.28. In this case, allow PID operation in the stop state (PA.28 = 1).
If the current turn on time reaches the value set in this parameter, the corresponding M01
output is ON.
Group P9: Faults and protection
P9.00 = 0
Overload protection function is off. The motor is exposed to potential damage due to
overheating. It is recommended to install a thermal relay between the inverter and the
motor.
P9.00 = 1
The inverter evaluates whether the motor is overloaded according to the inverse time-lag
curve of the motor overload protection
The inverse time delay of the overload protection of the motor is:
220% * P9.01 * rated motor current (if the load remains at that value for one minute, the
inverter reports an overload motor error) or
150% * P9.01 * rated motor current (if the load remains at this value after 60 minutes, the
inverter reports a motor overload error).
Set P9.01 based on actual overload. If the value of parameter P9.01 is set to too high, the
motor may be damaged if the motor overheats but the inverter does not sound an alarm.