AC Brushless Servo Drive System Manual Ver: 0002
ACa - 23 / 32
Preliminary
5.2 ELECTRICAL CONNECTIONS
Power connection: Mains-Drive.
The drive power supply must be three-phase. The use of a transformer is not a must.
(*) Recommended values. They are slow general purpose fuses. If they are installed on the Mains
input lines, their maximum currents will depend on the value of the Mains voltage.
A thermal switch may optionally replace the fuses.
Important: The secondary windings must have a star connection with its middle point connected
to ground.
POWER
INPUT
L3
L1
L2
Autotransformer.
ACS Drive
Mains
3 x 2.5 mm
2
Fuses
Secondary: 3x220 Vac
From ?? to ?? kw
ACS-05
ACS-10
4 Amp
Transformer.
Fuses
3 x 2.5 mm
2
Fuses (*)
Secondary: 3x220 Vac
From ?? to ?? kw
ACS-20
ACS-30
25 Amp
16 Amp
8 Amp
L
N
Mains
220 Vac
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