Undercurrent Protection Settings - NR Electric PCS-9611 Instruction Manual

3 Operation Theory
Ia < [37.I_Set]
Ib < [37.I_Set]
Ic < [37.I_Set]
[BI_52a]
[37.En]
[37.En1]
[37.Blk]
Where:
[37.I_Set] is the current setting of the undercurrent protection;
[BI_52a] is the binary input from the auxiliary normally opened contact of the circuit breaker;
"t " is the setting [37.t_Op], the time setting of the undercurrent protection;
UC
[37.En] is the logic setting of the undercurrent protection;
[37.En1] is the binary signal for enabling the undercurrent protection;
[37.Blk] is the binary signal for blocking the undercurrent protection.

3.21.2 Undercurrent Protection Settings

All the settings of the undercurrent protection are listed in the following table. For the information
about the common explanation of the settings, see Section 7.3.
No. Menu text
1 37.I_Set
2 37.t_Op
3 37.En
4 37.OutMap
3-70
&
Figure 3.21-1 Logic diagram of the undercurrent protection
The current setting of the undercurrent protection
The time setting of the undercurrent protection
The logic setting of the undercurrent protection
The output matrix setting of the undercurrent
protection
Date: 2014-04-08
t 0
&
UC
Explanation
[37.St]
[37.Op]
Range Step
0.1In~1.0In 0.001A
0~100s 0.001s
0~1 1
0x00000 ~
1
0xFFFFF
PCS-9611 Feeder Relay