Tests and service
68
EDS460-490_D00085_01_M_XXEN/02.2016
7.4.3 CT connection fault display (channel-related)
LED "Alarm 1" lights up. The common alarm relay switches. The EDS…-D dis-
plays:
The "CT fault" is displayed in the same way as „Display device error“ on page
66.
Possible causes:
Measuring current transformer defective
Power supply cable interrupted
Power supply cable short-circuited
7.4.4 Display "peak"
System-related faults may impair the insulation fault location process. The
EDS… marks the faulty channels in the "Alarm/meas.values" menu with
"peak".
7.4.5 External alarm
LED "Alarm 2" lights up. The common alarm relay switches.
Possible causes:
Alarm message from an external device
Device failure
Fault 1/1
CT fault
Addr.:2 Chan.:4