5-216
C70 Capacitor Bank Protection and Control System
GE Multilin
5.7 CONTROL ELEMENTS
5 SETTINGS
5
5.7.5 TIME OF DAY TIMERS
PATH: SETTINGS
CONTROL ELEMENTS
TIME OF DAY TIMERS
TIME OF DAY TIMER 1(5)
The time of day timer function provides the ability to program control actions based on real time. There are five identical
time of day timers, each with an independent start and stop time setting. Each timer is on when the C70 real-time clock/cal-
endar value is later than its programmed start time, and earlier than its programmed stop time. The timers wrap around
24 h as illustrated below.
Figure 5–95: TIME OF DAY TIMER EXAMPLE
The
TIME OF DAY 1 ON
FlexLogic operand follows the state of the timers. In addition, one-second pulses are generated on
the
TIME OF DAY 1 START
and
TIME OF DAY 1 STOP
FlexLogic operands when the timers turn on and off, respectively (see
the figure below). These operands can be combined in FlexLogic with the day and month FlexLogic operands and/or with
FlexElements operating on the
DAYOFYEAR
,
DAYOFMONTH
, and
SECONDOFDAY
FlexAnalog parameters to create virtually
any time and date condition for custom time or season-based control actions. To activate these FlexAnalog parameters,
enable at least one time of day timer.
Figure 5–96: CLOSE/OPEN/MAINTAIN CONTROL VIA FLEXLOGIC OPERANDS
If the relay is connected to an external clock that follows daylight time changes, care should be taken that the changes do
not result in undesired operation. The following settings are available for each time of day timer element.
•
TIME OF DAY TIMER 1 START
: This setting is used to program the relay clock/calendar value for which the timer turns
on.
•
TIME OF DAY TIMER 1 STOP
: This setting is used to program the relay clock/calendar value for which the timer turns
off.
•
TIME OF DAY TIMER 1 EVENTS
: If enabled, the
TIME OF DAY TIMER 1 ON
and
TIME OF DAY TIMER 1 OFF
events are
logged.
TIME OF DAY TIMER 1
TIME OF DAY TIMER 1
FUNCTION: Disabled
Range: Disabled, Enabled
MESSAGE
TIME OF DAY TIMER 1
START TIME: 00:00
Range: 00:00 to 23:59 in steps of 00:01
MESSAGE
TIME OF DAY TIMER 1
STOP TIME: 23:59
Range: 00:00 to 23:59 in steps of 00:01
MESSAGE
TIME OF DAY TIMER 1
TARGETS: Disabled
Range: Self-reset, Latched, Disabled
MESSAGE
TIME OF DAY TIMER 1
EVENTS: Disabled
Range: Disabled, Enabled
842800A1.CDR
24:00
21:00
18:00
15:00
12:00
09:00
06:00
03:00
00:00
Time of day timer 2
t start (5)
t stop (5)
Time of day timer 1
Time of day timer 3
Time of day timer 4
Time of day timer 5
842801A1.CDR
TIME OF DAY TIMER 1 ON
TIME OF DAY TIMER 1 START
TIME OF DAY TIMER 1 STOP
Start time
Stop time
Summary of Contents for C70
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