HV580L Series Frequency Inverter
142
P8-53
Current running time reached
Default
0.0Min
Setting Range
0.0Min
~
6500.0Min
If the current running time reaches the value set in this parameter, the corresponding DO becomes ON,
indicating that the current running time is reached.
Group P9 Fault and Protection
P9-00
Motor overload protection selection
Default
1
Setting Range
0
Disabled
1
Enabled
P9-01
Motor overload protection gain
Default
1
Setting Range
0.20
~
10.00
P9-00 = 0
The motor overload protective function is disabled. The motor is exposed to potential damage due to
overheating. A thermal relay is suggested to be installed between the AC drive and the motor.
P9-00 = 1
The AC drive judges whether the motor is overloaded according to the inverse time-lag curve of the motor
overload protection.
The inverse time-lag curve of the motor overload protection is:
220% x P9-01 x rated motor current (if the load remains at this value for one minute, the AC drive reports
motor overload fault), or 150% x P9-01 x rated motor current (if the load remains at this value for 60 minutes,
the AC drive reports motor overload fault)
Set P9-01 properly based on the actual overload capacity. If the value of P9-01 is set too large, damage to the
motor may result because the motor overheats but the AC drive does not report the alarm.
P9-02
Motor overload warning coefficient
Default
80%
Setting Range
50%
~
100%
This function is used to give a warning signal to the control system via DO before motor overload rotection.
This parameter is used to determine the percentage, at which pre-warning is performed before motor overload.
The larger the value is, the less advanced the pre-warning will be.
When the accumulative output current of the AC drive is greater than the value of the overload inverse
time-lag curve multiplied by P9-02, the DO terminal on the AC drive allocated with function 6 (Motor overload
pre-warning) becomes ON.