ABB REB500 Communication Protocol Manual page 18

Section 2
Interbay bus functions
10
Table 4 SCS Differential Current Parameters
Item Description
Update period Determines how often the differential current
measurement has to be updated.
Enabled Enables polling of the bus zone differential
currents.
Delta L1_L2_L3 Applies to all bus zones. Delta per bus zone for
phases L1, L2 and L3.
Dead band Dead band per bus zone for phases L1, L2 and
L1_L2_L3 L3.
Delta L0 Delta per bus zone for the neutral current L0.
Dead band L0 Dead Band per bus zone for the neutral current
L0
'Delta' and 'Dead band' settings that are too low result in a high
data load on the bus. For this reason, care should be taken to set
reasonable values.
Min. Max.
0 1000
yes no
0 65535
0 65535
0 65535
0 65535
Communication Protocol Manual, IEC 60870-5-103
Distributed busbar protection REB500
1MRK 511 371-UEN
Default Step Unit
60 100 s
Yes
10 1 A
5 1 A
10 1 A
5 1 A