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
RAISELOWERAUT 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
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