Toshiba GRL100-701B Instruction Manual page 73

Logic Level
CS
Inversion (*)
Logic Level
S-DEF
Inversion (*)
(*): By PLC function.
Figure 2.3.2.10 Interface with Signaling Equipment
2.3.2.9 Signaling Channel
When directional earth fault command protection (see Section 2.4.1) is used with POP, UOP or
BOP scheme of distance protection and two channels are available, signal channel can be
separated from distance protection by setting the scheme switch [CH-DEF] to "CH2". In this case,
signals CH1 and CH2 are used for distance protection and directional earth protection
respectively. If the scheme switch [CH-DEF] is set to "CH1", the signal CH1 is shared by the both
protections.
When directional earth fault command protection is used with PUP scheme, signal channel is
separated irrespective of [CH-DEF] setting.
Following table shows the scheme switch settings and usable signals:
Scheme CH-DEF setting
PUP CH1
CH2
POP CH1
CH2
UOP CH1
CH2
BOP CH1
CH2
(*) CH1 is shared by the distance and directional earth fault command protections.
Setting
Element Range
CH-DEF CH1/CH2
Signaling Equipment
Signal
Receiving
Trip
Trip
Signal
Sending
Bon
Trip
BOn Trip
Use of signal
CH1
PUP
PUP
POP and DEF (*)
POP
UOP and DEF (*)
UOP
BOP and DEF (*)
BOP
Step Default
CH1
 72 
(+)
Logic Level
BIn
Inversion
Logic Level
BIm
Inversion
(-)
CH2
DEF
DEF
--
DEF
--
DEF
--
DEF
Remarks
Channel separation
6 F 2 S 0 8 5 0
R1-CR1
R1-CR2