ABB RELION REB500 Operation Manual page 24

Section 3
Signals
Signal
41805_Alarm
41810_In service
41815_Diff. current alarm
41820_Loss of supply voltage
41825_Inspection/maintenance
41830_Switch inhibit
41835_Test generator active
41840_PRP LineA ready
41845_PRP LineB ready
41850_Time not in sync
41415 BB zone blocked
Table 19:
Signal
42305_BBP trip
42310_BBP trip L0
42315_BBP trip L1
42320_BBP trip L2
42325_BBP trip L3
42330_Check_Zone_Operated
42405_BBP blocked
Table continues on next page
18
Description
Set in the following cases:
•
•
•
•
•
•
•
•
•
Signal set by the diagnostic function that shows that the central unit is
operational or stand-by.
The differential current of a protection zone exceeded the set alarm level
during the preset interval.
Signals the failure of the isolator auxiliary supply on a bay unit
(Supervision aux. voltage_x). It is used in conjunction with Not OPEN =
CLOSED.
Signals that an inspection or maintenance input is set on one of the
protection units.
This signal appears together with Isolator alarm. No switching of the
primary system may take place as long as this signal is active, because the
image of the primary system in the protection would not then correspond
to the actual situation.
The test generator is in active within the busbar protection system.
Signal the status of the IEC 61850 redundant lines A and B, respectively
(CIM module Ethernet ports LAN1 and LAN2). The signal is active if a link
has been established.
Signals that the time synchronization (SNTP, IEC60870-5-103, PPS or IRIG-
B) is missing.
Signals the blocking of BBP or the inter-tripping system of a bus zone.
This signal is a combined signal, that is, both the blocking of BBP and also
blocking of the inter-tripping system are signaled.
CU output signals for protection functionality
Description
BBP has tripped.
A fault was detected on phase L0, L1, L2, or L3, respectively, and BBP has
tripped.
The check zone has operated.
BBP is blocked (either individual protection zones or the entire system).
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Supply failure
Failure or disturbance of a central unit module
Failure of the communication with a bay unit
Failure of a bay unit
Failure of a bay unit function
Error when refreshing the data in the protection system
Communication error in the central unit
Ext. supervision in service_1/2 inputs not set
An ABB reference (bay) was deactivated under the HMI500 menu,
Settings Activate deactivate device first and activated with the
limitation no objects afterwards. Due to this setting, the single line
diagram shows an active bay node (bay name), but a deactivated bay
figure. If no bay unit is connected for this bay, the alarm signal is set.
After a loss of the synchronization source this signal
occurs after a delay of maximum 5 minutes.
1MRK 505 400-UEN B
Distributed busbar protection REB500
Technical manual