Lenze EDB9300UES - Manual (Page 34)

Technical Data
BA8230 29
Example:
With a 10 % duty cycle the resistor may be switched on continuously for a maximum
of 15 seconds. Also permissible, for example, would be 5 seconds on and 45 seconds
off. A load cycle with 20 seconds on and then 180 seconds off would not be
permissible.
Technical data of braking resistors:
Type ERBD015R04K0 0.4 kW / 15
Ω
Resistance 15
Ω
Peak load 40 kW
Duty cycle % / 150 s 10 %
Max. rating 600 kWs
Continuous capacity
ϑ
= 45 °C 4 kW
Continuous current at DC 750 V 16 A
Peak current at DC 750 V 50 A
Permitted ambient temperature -25 ... +45 °C
max. 55 °C: Power reduction of 1 % / 1 °C
Protection class IP 20
Table 13: Technical data of braking resistors
8230 frequency
inverter Assignment of braking resistors
Number of
parallel
resistors
Total
resis-
tance
Total continuous
power
Total continuous
current
Total peak
power
Total peak
current
[Ohm] [kW] [A] [kW] [A]
8231 4 3.7 16 64 150 200
8232 5 3.0 20 80 187 250
8233 6 2.5 24 96 225 300
8234 8 1.9 32 128 300 400
Table 14: Assignment of braking resistors
Observe the installation notes in section 3.
Dimensions and installation drawings: See section 2.8.7.
Important!
The brake resistors used must be monitored thermally by an overload protection. The
alarm contact(s) are to be integrated into the control of the drive (plant) such that the
mains voltage is switched off atthe power input of the 8230 frequency inverter, if the
contact responds. This means that the main contactor or power switch in the 3AC
supply is opened.
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