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If in a special application the power of the internal resistors should be insufficient, they can be cut off
by removing the bridge between the pin BR-CH and BR-INT of the [X9] plug. Instead, an external
brake resistor is inserted between the pins BR-CH and ZK+. This brake resistor must fulfil certain
minimum specifications (see Table 13, page 37). The output is protected against short-circuiting in the
brake resistor or its cable.
Pin BR-CH lies on positive DC bus potential and is thus not protected against ground fault or short-
circuits against mains voltage or negative DC bus voltages.
Simultaneous use of the internal and external brake resistors is not possible. The external resistors
are not automatically overload-protected by the device.
3.4 Communication interfaces
The ARS 2000 SE series servo drives have several communication interfaces:
USB interface [X19]: USB
UDP interface [X18]: Ethernet
Fieldbus system [X4]: CANopen
I/O interface [X1]: Digital and analogue In- and outputs
The Ethernet and the USB interface are particularly important for the connection of a PC and for the
use of the Metronix ServoCommander
®
parameterisation tool.
In any case, the servo drive of this design always works as a slave to the fieldbus.
3.4.1 USB interface [X19]
This interface was mainly intended as a parameterisation interface, but it can also be used for
controlling the servo drives.
Product Manual „Servo drives ARS 2100 SE“ Version 5.0
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