ABB REG316 4 Series Operating Instructions Manual page 813

REG 316*4 1MRB520049-Uen / Rev. C
Fig. 12.2 Digital generator protection REG 316*4
(front view)
1 Green LED (stand-by)
2 LED's belonging to first I/O unit
3 LED's belonging to second I/O unit
4 Reset button behind frontplate
5 Local display unit (LDU) with optical serial inter-
face
6 Marking space
ABB Switzerland Ltd
12-3