Features - Eaton PowerXL DC1 Manual

1 DC1 device series

1.7 Features

1.7 Features
① ②
L1/L
L2/N
L3
EMC

⑩
20
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.
③ ④
+
U
-
VAR
Figure 8: Block diagram; components in a DC1 variable frequency drive
a L1/L, L2/N, L3, PE supply, mains supply voltage U
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
DC1 variable frequency drive 12/13 MN04020003Z-EN www.eaton.com
⑤
DC- DC+
+
-
⑪
CPU
1 ... 11
) into a three-phase AC voltage (U
⑥ ⑦
BR
U
+
V
W
-

= U at 50/60 Hz:
LN e
) with variable amplitude and frequency (f
2
⑧ ⑨
M
3 ~
PES
).
2