3 Installation
3.6 Block diagrams
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
79
3.6.6 DB1-34…
Mains voltage U
LN
: three-phase, 380 (-10 %) - 480 (+10 %) V, 50/60 Hz
Motor voltage U
2
: three-phase, U
2
= U
LN
, 0 - 50/60 Hz (max. 500 Hz)
Figure 49: Block diagram DB1-34…
Variable frequency drive with three-phase mains connection and three-phase
motor connection
DC+
BR
3 AC 230/400/460 V
W
V
U
M
3 ~
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
RUN
6 A, 250 V AC
5 A, 30 V DC
RS485
CPU
0...+10 V
Modbus RTU
CANopen
OP-Bus
X1
10
11
Modbus
R
B
DB1-32...
3 AC 200 - 240 V
50/60
Hz
DB1-34...
3 AC 380 - 480 V
50/60
Hz
①
FS2
L1/L
L3
L2/N
①
Devices with frame size FS2 allow the connection of brake resistors
(DC+, BR).
