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3.2.2 DC bus coupling, DC supply
1.1.1.2 DC bus coupling
If they have the same DC bus voltage, it is possible to couple multiple servo drives of the
ARS 2100 FS / SE series.
Caution!
If the DC buses are connected, the power supplies must be connected to the same
mains phase.
This means, if two ARS 2100 FS / SE are coupled in the DC bus, only the connection
L1/N is possible for both devices. It is not allowed to connect the DC busses if the
devices are connected to different mains phases.
It is forbidden to supply device 1 via L1/N and device 2 via L2/N, if the DC buses are
coupled.
In case of a DC bus coupling with an ARS 2000 FS unit, the PFC in the ARS 2000 FS
must be disabled.
Caution!
Operation with DC bus coupling together with devices of the ARS 2300 FS / SE series is
not allowed.
1.1.1.3 DC supply
The direct DC supply is supported for a supply with voltages 60 VDC by the DC-bus connection
instead of the connection to the mains, see Table 11.
The digital motor temperature measurement system requires a DC-link voltage of
120 VDC minimum. Below this voltage, the system will always identify the digital motor
temperature sensor as open.
3.2.3 Mains fuse
A slow-blow (B16) single-phase automatic circuit breaker of 16 A has to be installed in the mains
supply line.
3.3 Brake chopper
A brake chopper with a brake resistor is integrated into the power output stage. If during the generator
operation the permissible charging capacity of the DC bus is exceeded, the braking energy can be
converted into heat by the internal brake resistor. The brake chopper is software-driven. The internal
brake resistor is overload-protected by means of software and hardware.
Product Manual „Servo drives ARS 2100 SE“ Version 5.0
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