User Manual

3UG4624 residual current monitoring relay
8.5 Diagnostics
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
179
8.5 Diagnostics
8.5.1 Indication on the display
Display information
The display is divided into three different areas.
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① Current measured value or fault 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 current overshoot
②
Current is in correct range
②
A current overshoot has occurred
②
! The warning threshold has been exceeded
③
I▲
• Not flashing: Relay contact 11/12 open, relay contact 11/14 closed
• Flashing: Delay time (ON-delay or tripping delay) running
• Masked out: Relay contact 11/12 closed, relay contact 11/14 open
③
I!
• Not flashing: Relay contact 21/22 open, relay contact 21/24 closed
• Flashing: Delay time (ON-delay or tripping delay) running
• Masked out: Relay contact 21/22 closed, relay contact 21/24 open
You will find more information about the switching behavior of the output relay in Chapter
"Functions (Page 173)."