GE D60 Instruction Manual page 450

5.8 INPUTS AND OUTPUTS
The "Latest/On" and "Latest/Off" values freeze the input in case of lost communications. If the latest state is not known,
such as after relay power-up but before the first communication exchange, then the input defaults to logic 1 for "Latest/On"
and logic 0 for "Latest/Off".
c) TELEPROTECTION OUTPUTS

PATH: SETTINGS INPUTS/OUTPUTS
 TELEPROT OUTPUTS

5
As the following figure demonstrates, processing of the teleprotection inputs/outputs is dependent on the number of com-
munication channels and terminals. On two-terminal two-channel systems, they are processed continuously on each chan-
nel and mapped separately per channel. Therefore, to achieve redundancy, the user must assign the same operand on
both channels (teleprotection outputs at the sending end or corresponding teleprotection inputs at the receiving end). On
three-terminal two-channel systems, redundancy is achieved by programming signal re-transmittal in the case of channel
failure between any pair of relays.
UR-1
SETTING
TELEPROT OUTPUT 1-1:
(same for 1-2...1-16)
Off (Flexlogic Operand)
SETTING
TELEPROT INPUT 1-1
DEFAULT:
(same for 1-2...1-16)
FLEXLOGIC OPERAND
TELEPRO INPUT 1-1 On
OR
(same for 1-2...1-16)
SETTING
TELEPROT OUTPUT 2-1:
(same for 1-2...1-16)
Off (Flexlogic Operand)
SETTING
TELEPROT INPUT 2-1
DEFAULT:
(same for 1-2...1-16)
FLEXLOGIC OPERAND
TELEPRO INPUT 2-1 On
OR
(same for 1-2...1-16)
5-328

TELEPROTECTION
TELEPROT OUTPUT 1-1:
Off
TELEPROT OUTPUT 1-2:
MESSAGE
Off
TELEPROT OUTPUT 1-16:
MESSAGE
Off
TELEPROT OUTPUT 2-1:
MESSAGE
Off
TELEPROT OUTPUT 2-2:
MESSAGE
Off
TELEPROT OUTPUT 2-16:
MESSAGE
Off
ACTUAL VALUES
CHANNEL 1 STATUS:
On
Fail
Off
OK
ACTUAL VALUES
CHANNEL 2 STATUS:
On
Fail
Off
OK
Figure 5–176: TELEPROTECTION INPUT/OUTPUT PROCESSING
D60 Line Distance Protection System

TELEPROT OUTPUTS
Range: FlexLogic operand
Range: FlexLogic operand

Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand

Range: FlexLogic operand
ACTUAL VALUES
CHANNEL 1 STATUS:
Communication channel #1
(Teleprotection I/O Enabled)
ACTUAL VALUES
CHANNEL 2 STATUS:
Communication channel #2
(On 3-terminal system or 2-terminal
with redundant channel)
5 SETTINGS
UR-2
SETTING
TELEPROT INPUT 1-1
DEFAULT:
(same for 1-2...1-16)
On FLEXLOGIC OPERAND
Fail
Off
TELEPRO INPUT 1-1 On
OR
OK
(same for 1-2...1-16)
SETTING
TELEPROT OUTPUT 1-1:
(same for 1-2...1-16)
Off (Flexlogic Operand)
UR-2 or UR-3
SETTING
TELEPROT INPUT 2-1
DEFAULT:
(same for 2-2...2-16)
On FLEXLOGIC OPERAND
Fail
Off
TELEPRO INPUT 2-1 On
OR
OK
(same for 2-2...2-16)
SETTING
TELEPROT OUTPUT 2-1:
(same for 2-2...2-16)
Off (Flexlogic Operand)
842750A2.CDR
GE Multilin