Warnings - Arc protection - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Grid automation - Busbar differential protection (high impedance) - Line differential protection - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Interconnection protection - Generator protection - Power management/Load shedding - Operation Manual - REX615 Protection and control - PCL2 - IEC - ANSI - 30.10.2025

REX615 Operation Manual

Warnings are indicated with the text Warning additionally provided with the name of the warning, a numeric code and the date and time on the LHMI. The warning indication message can be manually cleared.

Note: If a warning appears, record the name and code so that it can be provided to ABB customer service.
Figure 1. Warning
Table 1. Warning indications and codes
Warning indication Warning code Additional information

Warning

Watchdog reset

10 A watchdog reset has occurred.

Warning

Power down det.

11 The auxiliary supply voltage has dropped too low.

Warning

IEC61850 error

20 Error when building the IEC 61850 data model.

Warning

Modbus error

21 Error in the Modbus communication.

Warning

DNP3 error

22 Error in the DNP3 communication.

Warning

Dataset error

24 Error in the Data set(s).

Warning

Report cont. error

25 Error in the Report control block(s).

Warning

GOOSE contr. error

26 Error in the GOOSE control block(s).

Warning

SCL config error

27 Error in the SCL configuration file or the file is missing.

Warning

Logic error

28 Too many connections in the configura- tion.

Warning

SMT logic error

29 Error in the SMT connections.

Warning

GOOSE input error

30 Error in the GOOSE connections.

ACT error

31 Error in the ACT connections.

Warning

GOOSE Rx. error

32 Error in the GOOSE message receiving.

Warning

AFL error

33 Analog channel configuration error.

Warning

SMV config error

34 Error in the SMV configuration.

Warning

Comm. channel down

35 Redundant Ethernet (HSR/PRP) communication interrupted.

Warning

Unack card comp

40 A new composition has not been acknowledged/accepted.

Warning

Protection comm.

50 Error in protection communication.

Warning

ARC1 cont. light

85 A continuous light has been detected on the ARC light input 1.

Warning

ARC2 cont. light

86 A continuous light has been detected on the ARC light input 2.

Warning

ARC3 cont. light

87 A continuous light has been detected on the ARC light input 3.

Warning

RTD card error,X105

90 Temporary error occured in RTD card located in slot X105.

Warning

RTD card error,X110

94 Temporary error occurred in RTD card located in slot X110.

Warning

RTD card error,X130

96 Temporary error occurred in RTD card located in slot X130.

Warning

RTD meas. error,X105

100 Measurement error in RTD card located in slot X105.

Warning

RTD meas. error,X110

104 Measurement error in RTD card located in slot X110.

Warning

RTD meas. error,X130

106 Measurement error in RTD card located in slot X130.