4
ENGLISH
SIN.NT.015.6 – M40FA640A/A
Issued 04.2010
VOLTAGE REGULATOR
M40FA640A/A
MARK I
TERMINALS
Connection terminals are performed through FAST-ON
terminals. The terminals have to be connected according
the applicable wiring diagram, in order to avoid any
possible mistake in the wiring. The use of FAST-ON
terminals makes any operation on regulator (as
replacement, connection to accessories, setting up)
extremely simple.
POWER STAGE INPUT TERMINALS
“U”, “N” : terminals for power supply
VOLTAGE SENSING INPUT TERMINALS
“S1 - S2”, “S3 - S4”, “S5 - S6” are the terminals for three
phase or single phase voltage sensing.
POWER OUTPUT TERMINALS
“+”, “-”: output terminals (positive, DC, and negative, DC).
S6
S5
S4
S3
S2
S1
9
-
+
N
U
-
+
Three phase
voltage
reference
Exciter
stator
Supply
Varicomp
PAR
6
8
B
A
P
Q
60
Hz
VOLT
FREQ
AMP
STAB
SLOPE
ON
OFF
micro-switches 1-4
2
4
1
3
YELLOW
LED
RED
LED
F
U
S
E
