Additional requirements for the servo drives concerning the UL approval Page 24
5 Electrical installation
If they have the same DC bus voltage, it is possible to couple multiple servo drives of the
ARS 2100 FS / SE series.
Caution!
DC bus coupling is not allowed while the PFC stage is active. This can otherwise result
in damages to the servo drive.
Caution!
If the DC buses are connected, the power supplies must be connected to the same
mains phase.
This means, if two ARS 2100 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.
Caution!
Operation with DC bus coupling together with devices of the ARS 2300 FS / SE series is
not allowed.
Mounting Instructions „Servo drives ARS 2100 SE“ Version 5.0