S1 745 Setup
745
Transformer Management Relay
Se
tpoints
http://www.GEindustrial.com/multilin
5–27
GE Multilin
Resetting
PATH: SETPOINTS
!
S1 745 SETUP
!"
RESETTING
The reset function performs the following actions: all latched relays are set to the
non-operated state and latched target messages are cleared, if the initiating
conditions are no longer present. Resetting can be performed in any of the following
ways: via
RESET
on the front panel while the 745 is in local mode (i.e. the Local LED
indicator is on); via a logic input; via any of the communication ports.
•
LOCAL RESET BLOCK
: The 745 is defaulted to the local mode. As a result, the
front panel (local)
RESET
key is normally operational. Select any logic input,
virtual input, output relay, or virtual output which, when asserted or operated,
will block local mode, and hence the operation of the front panel
RESET
.
•
REMOTE RESET SIGNAL
: Select any logic input which, when asserted, will
(remotely) cause a reset command.
Clock
PATH: SETPOINTS
!
S1 745 SETUP
!"
CLOCK
The 745 includes a battery-backed internal clock that runs even when control power
is lost. Battery power is used only when the 745 is not powered. The battery is rated
to last for at least 10 years continuous use. The clock is accurate to within 1 minute
per month. An IRIG-B signal may be connected to the 745 to synchronize the clock
to a known time base and to other relays. The clock performs time and date
stamping for various relay features, such as event and last trip data recording.
Without an IRIG-B signal, the current time and date must be entered in a new relay
for any time and date displayed. If not entered, all message references to time or
date will display Unavailable. With an IRIG-B signal, only the current year needs to
be entered.
•
DATE
: Enter the current date, using two digits for the month, two digits for the
day, and four digits for the year. For example, April 30, 1996 would be entered
as “04 30 1996”. If entered from the front panel, the new date will take effect at
the moment of pressing the
ENTER
key.
•
TIME
: Enter the current time by using two digits for the hour in 24 hour time,
two digits for the minutes, and two digits for the seconds. The new time takes
effect at the moment of pressing the
ENTER
key. For example, 3:05 PM is entered
as “15 05 00”, with the
ENTER
key pressed at exactly 3:05 PM.
•
IRIG-B SIGNAL TYPE
: Select the type of IRIG-B signal being used for clock
synchronization. Select “None” if no IRIG-B signal is to be used.
Default Messages
PATH: SETPOINTS
!
S1 745 SETUP
!"
DEFAULT MESSAGES
!
RESETTING
[
!
]
LOCAL RESET
BLOCK: Disabled
Range: Enabled, Disabled
MESSAGE
REMOTE RESET
SIGNAL: Disabled
Range: Enabled, Disabled
!
CLOCK
[
!
]
DATE (MM/DD/YYYY):
01/01/1996
Range: 1 to 12 / 1 to 31 / 1990 to 2089
~
MESSAGE
TIME (HH:MM:SS):
00:00:00
Range: 0 to 23 : 0 to 59 : 0 to 59
MESSAGE
IRIG-B SIGNAL TYPE:
None
Range: None, DC Shift, Amplitude
Modulated
!
DEFAULT
[
!
]
MESSAGES
1 MESSAGES SELECTED
29 REMAIN UNASSIGNED
Range: cannot be edited
MESSAGE
745 Transformer
Management Relay
Range: Press
[.]
ENTER
,
ENTER
at any
message to select as a default
message.
Summary of Contents for Multilin 745
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