ABB REM 610 Technical Reference Manual page 50

REM 610 REM 610
Table 5.1.4.12.-2 SGF1
Switch
SGF1/1
SGF1/2
SGF1/3
SGF1/4
50
Motor Protection Relay
Technical Reference Manual - ANSI Version
Switch Position
number
1 1
0
2
3 1
4 0
1
5
0
6
1
7
8 0
9 1
10 0
11
1
12
0
13
1
14
0
15 1
16
0
17 1
18 0
1
19
20 0
checksum
Fig. 5.1.4.12.-1
When the checksum, calculated according to the example above, equals the
checksum of the relay, the switches in the switchgroup have been properly set.
The factory default settings of the switches and the corresponding checksums are
presented in the tables below.
SGF1...SGF5
Switchgroups SGF1...SGF5 are used for configuring the desired function as follows:
Function
Selection of the latching feature for PO1
Selection of the latching feature for PO2
Selection of the latching feature for PO3
When the switch is in position 0 and the measuring signal
*
which caused the trip falls below the set pickup value, the
output contact will return to its initial state.
When the switch is in position 1, the output contact will remain
*
active although the measuring signal which caused the trip falls
below the set pickup value.
A latched output contact can be unlatched either via the HMI, a
digital input or the serial bus.
Minimum pulse length for SO1 and SO2
0=80 ms
*
1=40 ms
*
Weighting
factor
x
1
=
x
=
2
x
=
4
x
=
8
x
=
16
x
32
=
=
x 64
=
x
128
=
x
256
x =
512
=
x
1024
x =
2048
4096
x
=
x =
8192
x =
16384
x =
32768
x =
65536
x
131072 =
x 262144 =
x =
524288
=
S
SG_
An example of calculating the checksum of a SG_ selector switchgroup
1MRS755537
Value
1
0
4
0
16
0
64
0
256
0
1024
0
4096
0
4096
0
16384
0
65536
0
262144
0
349525
Default setting
0
0
0
0
A060801