Time Dependent Overload Curve - KEB COMBIVERT F5 Instruction Manual

2.6 Time dependent overload curve
If the load current exceeds the rated current but is below the over current level, an
overload timer begins counting. The rate at which the timer increments is a function
of load current. The higher the current the faster the increments. When the counter
reaches the limit the fault E.OL is triggered and the output to the motor is shut off.
At this point the inverter begins a cool down period where the inverter is allowed to
cool before the fault can be reset.
 Less than size 24
Time [s]
300
270
240
210
180
150
120
90
60
30
0 105 110 115 120 125 130 135 140 145 150 160 170 180 190 200
 Size 24 and greater
Time [s]
300
270
240
210
180
150
120
90
60
30
0 105 110 115 120 125 130 135 140 145 150
Overload Characteristic
The overload curves are
dependent on the invert-
er housing size.
Load [%]
Load [%]
27