5
Made in Finland
= 63
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
X0
5
1
2
3
4
6
X2
X1
Serial Port
SPA
IRF
I>
U<
7
8
9
14
61
62
63
13
I
L1
I
L2
I
L3
U
aux
U
12
MAN'
AUT'
TCO
RAISE
LOWER
AUT MAN
LOWER' RAISE'
BLOCK
RSV
TAP POS.
+ -
Block
Blocking of regulating function, input
U
aux
Auxiliary voltage, input
RSV
Reduce set voltage or parallel input
AUT/MAN
Automatic or manual mode, output
IRF
Self-supervision signal, output
RAISE
Raise signal, output
LOWER
Lower signal, output
I>
Overcurrent or overvoltage blocking, output
U<
Undervoltage blocking output
SERIAL PORT
Serial communication port
TAP POS
Tap-changer position input, mA signal
TCO
Tap-changer operating input
RAISE'
Raise command or parallel operation input
LOWER'
Lower command or reduce set voltage input
AUTO'
Automatic mode input
MAN'
Manual mode input
U1
Automatic voltage regulating module SPCU 1D50
U2
Manual voltage regulating module SPCN 1D56
U5
I/O module
U6
Energizing input module
SPA-ZC_
Bus connection module
Rx/Tx
Fibre-optic receiver (Rx) and transmitter (Tx) of the bus connection module
Fig. 3. Rear wiew of the voltage regulator SPAU 341 C
