3.6.1.3 Maximum current (OL2)
It can be adjusted in the drive controller parameters if error (OL2) shall be triggered
when exceeding the maximum currents, or if the switching frequency is automatically
reduced (derating).
The following tables indicate the permissible maximum current for 6 output frequency val-
ues. In between there is a linear interpolation. Device size 07 is represented exemplary.
Overload characteristic in the lower speed range (OL2)
0
50
100
150
200
250
300
350
0 3,1 6,2 12,5 25 50
Output frequency in Hz
OL2 current to rated current in %
The characteristic curves represent the real maximum current values using the example of device size 07 (400 V).
Legend
Overcurrent I
OC
Switching frequency 4 kHz
Switching frequency 8 kHz
Switching frequency 16 kHz
Not available for modulation. The error OC is triggered at 300 % overload.
Figure 8: Overload characteristic in the lower speed range (OL2)
The frequency-dependent maximum current Iout_max refers in % to the rated
output current IN.
Fromthelastspeciedoutputfrequencyvalue,thecurrentremainsconstant.
The values for the respective device size are listed in the following tables.
43
GENERAL DATA
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