ABB RELION REX640 Technical Manual page 242

Basic functions
are the same or greater than
Q is activated and remains active till the date reaches the set
Deactivation month settings.
Activation of the BLOCK input deactivates the function output whereas the
activation of the FREEZE input freezes the output. The BLOCK input always has a
higher priority than the FREEZE input.
The module automatically handles the leap day and different month lengths.
• The function output remains active during the leap day if the leap day falls within
the set activation period.
• If the set
output does not activate.
• If the set
last date of the month is considered.
Q
Q
Figure 133: Examples of how output Q is activated for different settings
3.20.4.5 Application
The function activates an output for a specific set duration of the calendar year.
Consider an application where the output of the daily timer function DTMGAPC
needs to be activated only for specific days of the calendar year. The output of
CALGAPC can be connected to the BLOCK input of DTMGAPC (using NOT gate) so
that DTMGAPC activates only for the duration defined by CALGAPC.
Figure 134: Example of Calendar function usage
3.20.4.6 Signals
242
Activation day and Activation month settings, output
Activation day is not a valid date (for example, 31st April), then the
Deactivation day is not a valid date (for example, 31st April), then the
5/12 7/12 10/12
Set Activation day = 07, Activation month = December
Set Deactivation day = 22, Deactivation month = December
20/12 22/12 25/12
Set Activation day = 22, Activation month = December
Set Deactivation day = 07, Deactivation month = January
15/12 20/12 22/12
31/12 5/1 7/1
1MRS759142 F
Deactivation day and
25/12 31/12
10/1 15/1
REX640
Technical Manual