User Manual

3UG4641 cos phi and active current monitoring relay
12.5 Diagnostics
3UG4 / 3RR2 monitoring relays
286 Manual, 02/2013, NEB927043002000/RS-AA/002
12.5 Diagnostics
12.5.1 Indications on the display
Display information
The display is divided into three different areas.
23
1
① Current measuring value / cos phi measuring value or error symbol
② Type of monitoring
③ Symbols of the change-over contacts
Meaning of the information on the display
Note
Indications in the event of a fault
The symbols on the display flash to indicate an error.
The following statuses and faults are indicated on the display as a diagnostics message with
flashing symbols:
Display
area
Symbol Meaning
①
5.0A Displays the measured current
②
Monitoring for overshoot (φ▲ / I
res
▲) (output relay K2)
②
Monitoring for undershoot (φ▼ / I
res
▼) (output relay K1)
②
Window monitoring (φ▲ and φ▼ / I
res
▲ and I
res
▼)
②
Measuring values are in the correct range
②
A measuring value overshoot has occurred
②
A measuring value undershoot has occurred