User Manual

3UG4651 speed monitoring relay
13.5 Diagnostics
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
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13.5 Diagnostics
13.5.1 Indications on the display
Display information
The display is divided into three different areas.
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① Speed measured value or fault symbol
② Type of monitoring
③ Symbol of the change-over contact
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
1100 Measured speed is displayed
②
Monitoring for speed overshoot (rpm▲)
②
Monitoring for speed undershoot (rpm▼)
②
Range monitoring (rpm▲ and rpm▼)
②
Speed is in the correct range
②
A speed overshoot has occurred
②
A speed undershoot has occurred
③
• 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
You will find more information about the switching behavior of the output relay in Chapter
"Functions (Page 297)."