KEB COMBIVERT 10F6 Series, Инструкция по эксплуатации

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DeVIce DATA OF THe 400 V DeVIceS
3.3.3.1 Overload characteristic (OL) for 400 V devices
All drive converters with overload characteristic of 180 % or 216 % can be operated at
rated switching frequency with an utilization of 150 % for 60 s.
Restrictions:
• The thermal design of the heat sink is based on the rated operation. The following
values are taken into account: Rated output current, ambient temperature, rated
switching frequency, rated voltage.
• At high surrounding temperatures and/or high heat sink temperatures (for example,
by preceding utilization nearby 100%) the drive converter can change to overtem-
perature error before triggering the protective function OL.
• At low output frequencies or switching frequencies higher than the rated switching fre-
quency, the frequency-dependent maximum current can be exceeded before and error
OL2 can be triggered (=> „Frequency-dependent maximum current (OL2) for 400V de-
vices“).
0
30
60
90
120
150
180
210
240
270
300
400
110 120 130 140 150 160 170 180 190 200 210
①
②
500
Overload characteristic (OC level 216%)
Release time / s
Motor current / drive converter rated currrent / %
Legend
①
Thermal overload limit
②
Limitation by the software current limit (the limit can be set with parameter is35)
Figure 4: Turn-off time t depending on the overload I/IN at OC level 216 %