Accessories
130
3ADW000462R0401 DCS880 Hardware manual e d
Accessories
DCF803-0016, FEX-425-Int and DCF803-0035
The field exciters DCF803-0016, FEX-425-Int and DCF803-0035 are half controlled 3-phase
converters. All field excitiers are based on the same control board SDCS-FEX-4. The board is
equipped with its own synchronization and current control. The current measurement circuit is
automatically scaled depending on the rated field current of the motor. The field exciter is fully
controlled and monitored by the armature converter via drive-to-drive communication.
The field exciter is prepared to operate as 3-phase as well as single-phase converter.
For single-phase operation connect terminals U and W.
Layout of the SDCS-FEX-4
Cross section FEX-425, DCF803-0016, DCF803-0035:
Terminal
Flex cable
Max [mm²] Torque [Nm]
X1
X3
0.25 … 1.5 0.5 … 0.6
X100 Field
X101 Mains
6 / AWG10 1.5 … 1.7
5 A
35 A
I
Fact
X101: U1
X101: V1
X101: W1
X100: 5 A (+)
X100: 35 A (+)
X100: D1 (-)
SF_FEX4_001_measu-ch_a.ai
Field
Measurement channel
Setting of switchable burden
resistors by rated field current
240
115
X3
2
3
1
X6
X4
ON
S1100
S2
S801
S800
U731
U730
D800
X5
X2
X1
T110
T112
T111
P1
P2
X110
X100
T113
35A 5A D1
123
X101
U1 V1 W1
123
R106
R107
R108
X71
X7
21
BL_FEX4_001_b.ai
V110
X3: DCSLink
X3:1 GND B
X3:2 CAN L
X3:3 CAN H
X1: 24 V supply
X1:1 24 V
DC
X1:2 0 V
DC
Field
Mains
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