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4.5.4 Diagnostics

Display information

The display is divided into three di󹪜erent areas.

① Current measured value or fault symbol

② Type of monitoring

③ Symbols for the semiconductor contact (left) and the CO contact (right)

Meaning of the information on the display

Note

Indications in the event of a fault

The symbols on the display 󹪞ash to indicate an error.

The following statuses and faults are indicated on the display as a diagnostics message with

󹪞ashing symbols:

Display

area

Symbol Meaning

① 12.5A Displays the measured current

① n x I▲ Flashing: Current is above the set blocking current

① I>> Flashing: Fault current detected

① L Flashing: Cable break/phase failure detected

① Flashing: Incorrect phase sequence detected

② Monitoring for current overshoot

② Monitoring for current undershoot

② Range monitoring (monitoring for current overshoot and current undershoot)

② Current is in correct range

② A current overshoot has occurred

② A current undershoot has occurred

③

• Not 󹪞ashing: Relay contact 31/32 open, relay contact 31/34 closed

• Flashing: Delay time (ON-delay or tripping delay) running

• Masked out: Relay contact 31/32 closed, relay contact 31/34 open

③ Q

• Not 󹪞ashing: Semiconductor output closed, supply voltage connected

• Flashing: Delay time (ON-delay or tripping delay) running

• Masked out: Semiconductor output open, supply voltage not switched through

3RR2 current monitoring relays

4.5 3RR22 current monitoring relays

SIRIUS 3UG4 / 3RR2 monitoring relay

Equipment Manual, 07/2021, NEB927043002000/RS-AD/005 67

Siemens SIRIUS 3UG4 User Manual

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