ABB REB500 Technical Manual page 20

Section 2
Signals
12
14205_Block EFP
14405_BP EFP Manual Close
14605_EFP ext release_1
14610_EFP ext release_2
15210_Block OCDT
17205_Block PDF
17610_PDF ext release
Table 8 BU input signals for disturbance recorder (DR)
Signal Description
16705...16750_Start The disturbance recorder function is started by an external signal applied to
DR_x one of these 10 inputs (x = 1 to 10), or they can be simply used for recording
purposes. The external signal may come, for example, from the tripping
contact of a bay protection relay or the starting contact of a time-overcurrent
relay. Optocouplers are configured for these inputs. The signal "16750_Start
DR_10" is also transferred to the central unit where it initiates the general
start of all disturbance recorders in the bay units. The disturbance recorder in
the central unit is not started by this signal.
16760_BP Global Those disturbance recorders in the bay units that are configured start. The
Start DR signal 'Central start DR' in the bay units must be configured. This signal is
directly activated by the bay protection unit and does not therefore appear as
a binary input signal.
Table 9 BU input signals for voltage release (UV)
Signal Description
18205_Fuse failure Provision is made for a tripped MCB to apply a signal to the input
superv. UV "18205_Fuse failure superv. UV" and enable tripping of the protection zone
concerned.
Table 10 BU input signals for bay protection
Signal Description
19205_Block BP Blocks the protection output signals of the respective bay unit. Internal
processing of the functions continues and therefore measurements and
signals continue to be displayed on the local HMI.
19600_Activation BP The protection functions and settings assigned to parameter set 1, 2, 3, or 4,
ParSet_1 respectively, are active. They remain active after the signal has been reset.
19605_Activation BP
ParSet_2
19610_Activation BP
ParSet_3
19615_Activation BP
ParSet_4
BP input signals In addition to the bay protection input signals in this table, which are always
available for available, use can also be made of the signals configured for the binary
configuration signal input block of the bay protection. The number of these signals
depends on the protection functions and signals included in the bay
protection.
Blocks operation of EFP for corresponding bay unit. When the
blocking signal is cancelled, the timers start again at t = 0.
This signal is set by the bay protection when the circuit-breaker
receives a close command to prevent EFP from tripping.
Providing this input is configured, EFP is enabled by an external
signal.
Blocks operation of OCDT. When the blocking signal is cancelled,
the timer starts again at t = 0.
Blocks operation of PDF. The timers start at t = 0 when the input
resets.
Providing this input is configured, PDF is enabled by an external
signal.
Distributed busbar protection REB500
1MRK 505 350-UEN
Technical Manual