Maximum Current (Ol2); Figure 8: Overload Characteristic In The Lower Speed Range (Ol2) - KEB COMBIVERT S6 Series Instructions For Use Manual

GeNerAL DATA

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)
350
300
250
200
150
100
50
0
0
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)
3,1 6,2
Output frequency in Hz
The frequency-dependent maximum current I
output current I .
N
From the last specified output frequency value, the current remains constant.
The values for the respective device size are listed in the following tables.
12,5 25
refers in % to the rated
out_max
50
43