Direct Inputs/Outputs - GE L90 Instruction Manual

5 SETTINGS
b) USERST BIT PAIRS
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PATH: SETTINGS INPUTS/OUTPUTS
# REMOTE OUTPUTS
# UserSt- 1 BIT PAIR
MESSAGE
Remote Outputs 1 to 32 originate as GSSE messages to be transmitted to remote devices. Each digital point in the mes-
sage must be programmed to carry the state of a specific FlexLogic™ operand. The setting above is used to select the
operand which represents a specific UserSt function (as selected by the user) to be transmitted.
The following setting represents the time between sending GSSE messages when there has been no change of state of
any selected digital point. This setting is located in the
tings menu.
For more information on GSSE specifications, see the Remote Inputs/Outputs Overview in the Remote
Devices section.
NOTE
a) DESCRIPTION
The relay provides eight Direct Inputs that are conveyed on communications channel No. 1, numbered 1-1 through 1-8 and
eight Direct Inputs that are conveyed on communications channel No. 2 (on 3-terminal systems only), numbered 2-1
through 2-8. A user must program the remote relay connected to channels 1 and 2 of the local relay by assigning the
desired FlexLogic™ operand to be sent via the selected communications channel.
This relay allows the user to create distributed protection and control schemes via dedicated communications channels.
Some examples are directional comparison pilot schemes and transfer tripping. It should be noted that failures of communi-
cations channels will affect Direct I/O functionality. The 87L function must be enabled to utilize the direct inputs.
Direct I/O FlexLogic™ operands to be used at the local relay are assigned as follows:
Direct I/O 1-1 through Direct I/O 1-8 for communications Channel 1
Direct I/O 2-1 through Direct I/O 2-8 for communications Channel 2 (3-terminal systems only)
b) DIRECT INPUTS
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PATH: SETTINGS INPUTS/OUTPUTS
# DIRECT INPUTS
#
MESSAGE
MESSAGE
MESSAGE
The
DIRECT INPUT 1-1 DEFAULT
completed startup or the local communications channel is declared to have failed.
Setting
DIRECT INPUT 1-X DEFAULT
have logic state "1" on relay startup or during communications channel failure. When the channel is restored, the operand
logic state reflects the actual state of the corresponding remote direct output.
GE Multilin
!"
REMOTE OUTPUTS UserSt BIT PAIRS
UserSt- 1 OPERAND:
Off
UserSt- 1 EVENTS:
Disabled
PRODUCT SETUP
DEFAULT GSSE UPDATE
TIME: 60 s
!" !
DIRECT DIRECT INPUTS
DIRECT INPUT 1-1
DEFAULT: Off
↓
DIRECT INPUT 1-8
DEFAULT: Off
DIRECT INPUT 2-1
DEFAULT: Off
↓
DIRECT INPUT 2-8
DEFAULT: Off
setting selects the logic state of this particular bit used for this point if the local relay has just
to "On" means that the corresponding local FlexLogic™ operand (DIRECT I/P 1-x) will
L90 Line Differential Relay
5.7 INPUTS/OUTPUTS
!
REMOTE OUTPUTS UserSt- 1(32) BIT PAIR
Range: FlexLogic™ operand
Range: Disabled, Enabled
!" !"
COMMUNICATIONS IEC 61850 PROTOCOL
Range: 1 to 60 s in steps of 1

5.7.9 DIRECT INPUTS/OUTPUTS

Range: Off, On
Range: Off, On
Range: Off, On
Range: Off, On
set-
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