Codan 6725-W/E-AC/EX-CE - Finding faults in the redundancy switching equipment

Maintenance and fault finding
90 Block Up Converter Systems 6700/6900 series User Guide
Figure 19: BUC fault diagnosis chart 4
BUC fault
diagnosis chart 4
Is PA
OK?
Is
FLT LED
red and PA
showing a
fault?
See BUC fault
diagnosis chart 5.
Switch off BUC PA
using STO0
command.
Reset BUC using RST
command. Reset
latched faults using
RLF command.
Switch on BUC PA
using STO1
command.
BUC faulty.
Refer to Codan.
BUC OK.
Monitor for recurrence
of fault.
No
No
Yes
Yes