4.5.3. Speisung über Hauptklemmen (Niederspannung)
U and V phases must always be
A
connected to S1 and S2.
If the voltage sensing connection
is single-phase type, S3 is not used.
All contact terminals
B
can be associated
to each M terminal.
When U connected to S1 and
C
V connected to S2, current sensing
must be on W phase
For M71FA300A, C8 contact
D
is RESET, not FCR
TO LOAD
U V W
C
Current
sensing CT
N
-
Exciter
Generator
field
+
963857137_G
Relay 1
Relay 2
Analogue
auxiliary
inputs
Network VT
D
Supply by mains
De-excitation
contact
R1
R2
R3
R4
E1
E2
M
B
M
START
C1
STOP
C2
UP
C3
DOWN
C4
M
PAR
C5
MARELLI ENERGY
PF/VAR
C6
CONTROLLER
VMATCH
C7
FCR
C8
M
A5
A1
B
S1
S2
A
S3
L1
L2
_
+
P1
P2
P3
MEC-100
MEC-100
172