ABB REB500 Operation Manual page 51

1MRK 500 124-UEN
3.6.3.7
Operation Manual
Distributed busbar protection REB500
The overview of the BU outputs shows which signals are assigned to which output
relays. An output relay can be controlled by several signals (e.g. relay CR02 by
"TRIP" and "BFP TRIP").
For reasons of safety, it is impossible to mix tripping commands and signals, i.e.
tripping commands can only be combined with tripping commands and control
signals with control signals.
Tripping commands:
• 21105_EXTERNAL TRIP
• 21110_TRIP
• 23105_BFP TRIP
• 25105_OCDT TRIP
• 27105_PDF TRIP
The remaining signals and all the CU signals are control signals.
It is recommended to configure tripping signals for operating
circuit-breakers either to latch or to operate with a reset delay of at
least 100 ms.
Outputs Details tab
Figure 31 Configuration / Binary module - Outputs - Details – CU
Section 3
HMI500
43