ABB Relion 650 Series Technical Manual page 545

1MRK 506 326-UUS B
Power supply fault
Watchdog
TX overflow
Master resp.
Supply fault
ReBoot I/O
Internal Fail (CPU)
I/O nodes = BIO
xxxx = Inverted signal
IEC09000390 V1 EN-US
Figure 283: Hardware self-supervision, potential-free contact
Line distance protection REL650
Technical manual
Fault
Power supply
module
I/O nodes
Fault
Fault
CEM
© Copyright 2011 ABB Power Grids. All rights reserved
AND
INTERNAL
FAIL
IEC09000390-1-en.vsd
Section 16
Basic IED functions
539