P.15.2
SEL-411L Relay Protection Manual Date Code 20151029
ASCII Command Reference
Description of Commands
89CLOSE n
Use the 89CLOSE n command to close disconnect switches (n = 1–10). The
main board circuit breaker jumper (on jumper BREAKER) must be in place.
If the disconnect switch is open and Relay Word bit LOCAL is deasserted, the
89CLOSE n command asserts Relay Word bit 89CLSn for the 89CSITn time.
See Disconnect Switch Close and Open Control Logic on page P.12.2. If the
Relay Word bit 89OIPn asserts, indicating that the disconnect has started to
close, the relay displays
Operation in Progress... With Relay Word bit
89OIPn asserted and Relay Word bit 89ALPn deasserted, a dot (.) is appended
to the above message every half second to show progress. While the operation
is in progress, communications are unavailable on the port where the
89CLOSE command was executed. Assertion of Relay Word bit 89OIPn
starts the 89ALPn alarm timer. The relay waits for the 89ALPn timer to expire
and then checks the status of the 89AMn and 89BMn disconnect inputs. If the
89ALPn timer does not expire within 30 seconds, the relay exits the
89CLOSE command and reads the status of the disconnect inputs. The state
of Relay Word bits 89AMn and 89BMn determine which disconnect status
message the relay displays (
Disconnect OPEN, Disconnect CLOSED, or
Status Undetermined - check wiring). See Disconnect Switch Close and
Open Control Logic on page P.12.2. Use the 89CLSn Relay Word bit as part
of a SEL
OGIC Output control equation to close the appropriate disconnect
switch.
If the relay is disabled and you attempt an 89CLOSE n command, the relay
responds
Command aborted because the relay is disabled. If the circuit
breaker control enable jumper J18C (BREAKER) is not in place, the relay
aborts the command and responds,
Aborted: the breaker jumper is not
installed
. For information on placing relay jumpers, see Password and
Circuit Breaker Jumpers on page P.2.14.
When the 89CLOSE n command is issued and the circuit breaker control
enable jumper is in place, the relay responds,
CLOSE DISNAMn (Y/N)? If you
answer Y <Enter>, the relay responds,
Are you sure (Y/N)? If you answer
Y <Enter>, the command is executed. If the response to either prompt is not y
or Y, the relay responds with
Command Aborted.
89OPEN n
Use the 89OPEN n command to open disconnect switches (n = 1–10). The
main board circuit breaker jumper (on jumper BREAKER) must be in place.
If the disconnect switch is closed and Relay Word bit LOCAL is deasserted,
the 89OPEN n command asserts Relay Word bit 89OPENn for the 89OSITn
time. See Disconnect Switch Close and Open Control Logic on page P.12.2. If
the Relay Word bit 89OIPn asserts, indicating that the disconnect has started
to open, the relay displays
Operation in Progress... With Relay Word bit
89OIPn asserted and Relay Word bit 89ALPn deasserted, a dot (.) is appended
to the above message every half second to show progress. While the operation
is in progress, communications are unavailable on the port where the
89OPEN command was executed. Assertion of Relay Word bit 89OIPn starts
the 89ALPn alarm timer. The relay waits for the 89ALPn timer to expire and
then checks the status of the 89AMn and 89BMn disconnect inputs. If the
89ALPn timer does not expire within 30 seconds, the relay exits the 89OPEN
command and reads the status of the disconnect inputs. The state of Relay
Word bits 89AMn and 89BMn determine which disconnect status message the
relay displays (
Disconnect OPEN, Disconnect CLOSED, or Status
Tab l e 15. 2 89 C LOS E n C o m m a n d
Command Description Access Level
89CLOSE n Set Relay Word bit 89CLSn (n = 1–10) B, P, A, O, 2
NOTE: The number of disconnects
supported depends on the pre-
defined one-line diagram selected by
the Bay Control Setting, MIMIC.
NOTE: If a disconnect switch is not
defined in the one-line diagram
selected, the open and close logic for
the undefined disconnect switch still
operates.
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