Product description
Page 35
Product Manual „Servo drives ARS 2320, ARS 2340, ARS 2320W, ARS 2360W“
Version 8.0
3.3
Brake chopper
The power output stage comprises a brake chopper with a braking resistor. If the admissible charging
capacity of the DC bus is exceeded during regenerative power supply, the internal braking resistor can
convert the braking energy into heat. The brake chopper is controlled by the software. The internal
brake resistor is overload-protected by means of software and hardware.
If in a special application the capacity of the internal braking resistor is not sufficient, the resistor can
be switched off by removing the jumper between pins
BR-CH
and
BR-INT
of connector [X9]. Instead,
an external braking resistor has to be connected between pins
BR-CH
and
BR-EXT
. The values of this
braking resistor must not be below certain predefined minimum values (see
Table 12, page 41
). The
output is protected against a short-circuit in the braking resistor or in its feed line.
Pin
BR-CH
is connected to the positive DC bus potential and therefore not protected
against ground fault or shorts to mains power or negative DC bus voltage.
Internal and external braking resistors cannot be used simultaneously. External braking resistors are
not automatically overload-protected by the device.
Содержание ARS 2320
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