4) Electrical wiring of E800 inverters
400V Threephase above 30 kW
C3.....C6
Brake resistor:
E800 inverters have build in chopper transistor as standard. An adequate brake resistor can be connected externaly. The
maximum cable lenght is 2mt, the crossection depends on the current through the resistor, calculated, considering the brake
switch on voltage of 800V and the resistor value.
The minimum resistor value for single inverter power ranges is reported in table on chapter:
2) Product overview / Product data
–
the value in the table is the absolute minimum value – resistors with up to three times higher resistance value are
allowed
.
Right dimensioning of the resistor, especially in sense of continuous power and peak power depends on the application (inertia,
speed, brake cycle rate).
EURADRIVES accessories program offers special resistors for all kind of application.
ATTENTION!! All stored dynamic energy of the system is converted in heat,
during the brake process - heat, dissipated in the brake resistor.
Overheating of the resistor, risk of burning and fire may be the consequence of
improper dimensioning, wrong parameter setting, inverter fault or power supply
over-voltage.
It is necessary to provide suitable electrical and mechanical protection of the
brake resistor
The rules in chapter 1) Common installation and safety rules are to observe.
EURADRIVES does not take any responsibility for any damage or risk, if
improper brake resistors are used.
E800 / 3000 – Rev.04 -EN- SOFT Rev. 3.04
© 2014 EURADRIVES EUROPE GmbH
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