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Clear Relay Records - GE C30 Instruction Manual

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5 SETTINGS
components. The cut-off operation applies to quantities used for metering, protection, and control, as well as those
used by communications protocols. Raw samples of the voltages available via oscillography are not subject cut-off.
Lower the
VOLTAGE CUT-OFF LEVEL
as valid measurements. Unless dictated otherwise by a specific application, the default settings of "0.02
pu" for
NOTE
CURRENT CUT-OFF LEVEL
PATH: SETTINGS
PRODUCT SETUP
 CLEAR RELAY
 RECORDS
MESSAGE
MESSAGE
MESSAGE
MESSAGE
Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user-programma-
ble pushbuttons to clear specific records are typical applications for these commands. Since the C30 responds to rising
edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
Clearing records with user-programmable operands is not protected by the command password. However, user-program-
mable pushbuttons are protected by the command password. Thus, if they are used to clear records, the user-programma-
ble pushbuttons can provide extra security if required.
For example, to assign user-programmable pushbutton 1 to clear demand records, the following settings should be applied.
1.
Assign the clear demand function to pushbutton 1 by making the following change in the


CLEAR RELAY RECORDS

"
PUSHBUTTON 1 ON
CLEAR DEMAND:
2.
Set the properties for user-programmable pushbutton 1 by making the following changes in the

SETUP
USER-PROGRAMMABLE PUSHBUTTONS
PUSHBUTTON 1 FUNCTION:
PUSHBTN 1 DROP-OUT TIME:
GE Multilin
and
CURRENT CUT-OFF LEVEL
and "1.0 V" for
VOLTAGE CUT-OFF LEVEL

CLEAR RELAY RECORDS
CLEAR EVENT RECORDS:
Off
CLEAR OSCILLOGRAPHY?
No
CLEAR DATA LOGGER:
Off
RESET UNAUTH ACCESS:
Off
CLEAR DIR I/O STATS:
Off
menu:
"
USER PUSHBUTTON 1
"Self-reset"
"0.20 s"
C30 Controller System
5.2 PRODUCT SETUP
with care as the relay accepts lower signals
are recommended.
5.2.4 CLEAR RELAY RECORDS
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand.
Valid only for units with Direct I/O module.
SETTINGS
SETTINGS
menu:
5
PRODUCT SETUP
PRODUCT
5-17

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