Eaton PowerXL DC1 Series - Features

1 DC1 device series
1.7 Features
20 DC1 variable frequency drive 12/13 MN04020003Z-EN www.eaton.com
1.7 Features
DC1 series variable frequency drives convert the voltage and frequency of an
existing AC supply system into a DC voltage.
This DC voltage is then used to generate a single-phase or three-phase AC
voltage with an adjustable frequency and assigned amplitude values for the
variable speed control of AC motors and three-phase asynchronous motors.
Figure 8: Block diagram; components in a DC1 variable frequency drive
a L1/L, L2/N, L3, PE supply, mains supply voltage U
LN
=U
e
at 50/60 Hz:
DC1-1D…: single-phase mains connection (1 AC 115 V), with voltage doubler,
motor feeder (3 AC 230 V)
DC1-12…: single-phase mains connection (1 AC/2 AC 230 V/240 V), motor feeder (3 AC 230 V)
DC1-32…: three-phase mains connection (3 AC 230 V/240 V), motor feeder (3 AC 230 V)
DC1-34…: three-phase mains connection (3 AC 400 V/480 V), motor feeder (3 AC 400 V)
b Internal radio interference suppression filter (not in DC1-1D…), EMC connection to PE
c Internal voltage filter, VAR connection to PE
d Rectifier bridge: it converts the AC voltage of the electrical supply to a DC voltage.
e Internal DC link with charging resistor, capacitor, and switched-mode power supply unit and DC link
(DC- and DC+ connection only in FS2 and FS3 sizes with IP20 degree of protection)
f Braking chopper for external braking resistance (DC+ and BR connection only in FS2 and FS3 sizes)
g Inverter. The IGBT based inverter converts the DC voltage
of the DC link (U
DC
) into a three-phase AC voltage (U
2
) with variable amplitude and frequency (f
2
).
+
-
+
-
+
-

M
3 ~
U

L3
L2/N
L1/L
W
V
U
②①③④⑤⑥⑦
⑩
⑪
⑧⑨
DC+DC- BR
EMC VAR
CPU
1 … 11
PES