Eaton DC1-124D1FN-A20N - DC1 Device Series; Maintenance and Inspection

1 DC1 device series
1.6 Features
22 DC1 frequency inverter 10/12 MN04020003Z-EN www.eaton.com
1.6 Features
DC1 series frequency inverters 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 6: Block diagram; components in a DC1 frequency inverter
a L1/L, L2/N, L3, PE supply; mains supply voltage U
LN
=U
e
at 50/60 Hz:
DC1-S2… (1 AC 230 V) for AC motors
DC1-1D…: single-phase mains connection (1 AC 115 V), with voltage doubler
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 DC link with charging resistor, capacitor and switched-mode power supply unit (SMPS = Switching-
Mode Power Supply).
f Brake chopper for external braking resistor (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 the AC voltage (U
2
)
with variable amplitude and frequency (f
2
).
+
-
+
-
+
-

M
3 ~
U

L3
L2/N
L1/L
W
V
U
②①③④⑤⑥⑦
⑩
⑧⑨
DC-
DC+ BR
EMC VAR
CPU
1 … 11
PES