3 Installation
3.7 Block diagrams
98 DC1 Variable Frequency Drive 04/16 MN04020003Z-EN www.eaton.com
3.7.2 DC1-12…
Mains voltage U
LN
: single-phase, 200 (-10 %) - 240 (+10 %) V, 50/60 Hz
Motor voltage U
2
: 3-phase, U
2
 = U
LN
, 0 - 50/60 Hz (max. 500 Hz)
Size: FS1, FS2 and FS3 with IP20 degree of protection
Figure 62: Block diagram DC1-12…
Variable frequency drive with
 
single-phase
 
supply
 
system voltage and three-
phase motor connection
DC+ 
BR
DC- 
3 AC 230 V
WVU
M
3 ~
L1/L
EMC
L2/N
VAR
1 AC 200 - 240 V
50/60 Hz
PES
2
DI1
FWD
+24 V
3
DI2
REV
4
DI3
(AI2)
f-fix1
5
+10 V Out
< 10 mA
+10 V
6
AI1
(DI4)
REF
7
0 V
1
+24 V Out
< 100 mA
8
AO
(DO)
0...+10 V, < 20 mA
f-Out
+
9
0 V
10 11
RUN
6 A, 250 V AC
5 A, 30 V DC
RS485
CPU
0...+10 V
Modbus RTU
CANopen
OP-Bus
X1
① 
FS2, 
FS3
②
R
B
 Devices with a frame size of FS2 or FS3 allow for DC link coupling 
(DC+, DC-) and connecting brake resistors (DC+, BR).
Brake resistor DX-BR3-100 can be inserted underneath the heat sink into 
the enclosure and electronically protected against overloads (P-34 = 1).
 DC1-12xxxN…: without radio interference suppression filter
DC1-12xxxF…: with built-in radio interference suppression filter