ABB ACS2000 AFE 1MVA, User Manual

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33 ACS2000 AFE 1MVA UM 3BHS297030 ZAB E01 REV. J
Direct-to-line connection
For applications where the line voltage corre-
sponds to the motor nominal voltage, the ACS2000
can be connected direct-to-line by employing input
reactors
(1) instead of an input transformer. The
direct-to-line (DTL) configuration is used for 6 to
6.9 KV line voltages.
2.2.2 Auxiliary power supply configurations
The drive needs auxiliary power for:
• the cooling system and a short-time power
demand for the charging unit of the drive.
The power is fed by a three-phase power sup-
ply.
• the control hardware.
The power is fed by one single-phase power
supply.
The drive can be equipped with the following
power supply options:
• Standard power supply
The drive is equipped for one three-phase
power supply that provides the total auxiliary
power.
• Optional power supplies
To accommodate requirements for safe opera-
tion if the auxiliary power fails, the drive can be
furnished with one three-phase power supply
and one single-phase power supply.
Independent of the power supply scheme, the drive
provides an internal back-up supply for 100 ms.
This safety feature enables the control system to
shut down the drive in a controlled manner if the
auxiliary power fails.
Optionally the drive can be equipped with an addi-
tional battery. The battery supports 15 minutes
ride-through operation of the control system.
!
The power feed for the auxiliary supply
must be protected with a suitable circuit
protection rated for the inrush current.
For information, see
utility consumption
list of the drive.
!
For information on the configuration of
the auxiliary power interface in the drive,
see
Appendix D – Wiring diagrams .