ABB REL 551 2.3 Series - Page 48

42
Energising the terminal &KDSWHU
(QHUJLVLQJWKHWHUPLQDO
)LJXUH ([DPSOHRIWKHORFDO+0,IRULQWKLVH[DPSOH5(/
en00000422.vs
d
E
C
5HDG\
5(/9HU
& 4XLW
( (QWHUPHQX
6WDUW 7ULS
Push buttons
green yellow red
LEDs
Liquid Crystal Display
four rows
16 characters/row
Optical connector
for local PC