Derating and mains voltage
Reduce overcurrent based on mains voltage.
Frequency converter VFC 3210 is thermally dimensioned for the rated current.
This rated current is available with the specified rated voltage. With deviating
voltages in the permissible range, please pay attention to the following:
●
U
mains
< U
rated
:
With mains voltage below the rated voltage, no higher current may be with-
drawn to ensure that the dissipated power remains.
●
U
mains
> U
rated
:
With mains voltage above the rated voltage, a reduction of the permissible
output permanent current takes place to compensate for the increased
switching losses.
Fig. 6-2: Derating and mains voltage
1 % power derating every 4 V lower than 380 V.
Bosch Rexroth AG
Frequency Converter Overview
VFC 3210
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DOK-RCON04-VFC3210****-IT01-EN-P