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R7426A,B,C TEMPERATURE CONTROLLER WITH AND WITHOUT REAL-TIME CLOCK
EN1B-0203GE51 R0507C
18
Programming Holiday Schedule (with RTC, only)
The holiday schedule programming is used to program each
day of the year (01.01 ... 31.12.) as a holiday (day type = H1,
H2 or H3) or as a normal day (day type = H0 is default).
Pushing the
+
or
-
button during the first step of the holiday
programming (see Fig. 16) toggles between all programmed
holidays (≠ H0) and displays them (type and date).
If none of the 365 days of a year is programmed to be a
holiday, the actual date is displayed, marked as normal day
(H0).
Pushing the
SET
button selects the displayed holiday and
enters the adjustment for date and day type.
To program a new holiday, select any holiday, adjust date
(and holiday type if necessary) and confirm the changes by
pushing the
SET
button. To reset a holiday to normal day, day
type H0 has to be set for the specific day.
Pushing the
SEL
button returns to the selection mode,
ignoring adjustments which have not been confirmed by the
SET
button.
TO ADJUST
DAY
OR
TO ADJUST
DAY TYPE (H0,
H1, H2, OR H3)
OR
TO ADJUST
MONTH
OR
TO
TOGGLE/DISPLAY
PROGRAMMED
HOLIDAY
OR
We
We
Th
Sa
Fig. 16. Holiday schedule programming
Interpreting Error Messages
Different analog input errors can be identified by the controller
(Error handling). The defective analog input (T1, T2, T3 or
X
wrh
) will be displayed in the standard display mode (see Fig.
17) after the corresponding value is selected.
NOTE:
For the external CPA/SPA potentiometer input, no
error message is indicated if the potentiometer or
wiring is defective. In this case, for control point or
setpoint calculation, the following values are used:
• for CPATYP 0, 1 or 2 ⇒ CPA value = 0
• for CPATYP 3 ⇒ SPA value = control parameter W1
STANDARD
DISPLAY
DISPLAY SHOWN IF NO SENSOR
IS CONNECTED DURING POWER-UP
TEMPERATURE DISPLAY IN °C
HUMIDITY DEVIATION DISPLAY IN % rh
DISPLAY SHOWN AFTER ERROR
IDENTIFICATION DURING OPERATION
STANDARD
DISPLAY
AND : MAIN TEMPERATURE SENSOR T1 IS DEFECTIVE
: LIMITATION OR CASCADE TEMPERATURE SENSOR T2 IS DEFECTIVE
: COMPENSATION TEMPERATURE SENSOR T3 IS DEFECTIVE
: ERROR OF HUMIDITY DEVIATION INPUT X
Wrh
AND
AND
ANDSPACE
°C %rh °C %rh
Fig. 17. Error handling
PARAMETER
SELECTION
MODE
PARAMETER
SELECTION
MODE
PARAMETER
ADJUSTMENT
MODE
STANDARD
DISPLAY
MODE
PUSH
SIMULTANEOUSLY
FOR APPROX.
2 SEC
PUSH UNTIL
NEEDED
VALUE IS
DISPLAYED
A
B A
B
THIS EXAMPLE DESCRIBES THE ADJUSTMENT OF THE
COMPENSATION CHANGEOVER POINT W (P03).
comp
°C
°C °C
°C
°C
Fig. 18. Adjustment example