12000190-IEC18000536-1-en.vsdx
IEC18000536 V1 EN-US
Figure 6:
Settings/Communication/SCS Diff. Current Parameters
Settings in this dialog box are made for each busbar section (bus zone) and can be changed
after activating the respective field. The differential current parameters are as follows:
Table 4:
SCS differential current parameters
Item
Description
Min.
Max.
Default Step
Unit
Update
period
Determines how often the differential
current measurement has to be
updated.
0
1000
60
100
s
Enabled
Enables polling of the bus zone
differential currents.
yes
no
Yes
Delta
L1_L2_L3
Applies to all bus zones. Delta per bus
zone for phases L1, L2 and L3.
0
65535
10
1
A
Dead band
L1_L2_L3
Dead band per bus zone for phases
L1, L2 and L3.
0
65535
5
1
A
Delta L0
Delta per bus zone for the neutral
current L0.
0
65535
10
1
A
Dead band L0
Dead Band per bus zone for the
neutral current L0
0
65535
5
1
A
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.
Section 3
1MRK 511 451-UEN Rev. C
Interbay bus functions
12
Distributed busbar protection REB500
Communication protocol manual IEC 60870-5-103
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