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27. Alarms
There are two types of alarm:
alarms which do not affect the controller (only error messages are displayed);
alarms which do affect the controller (error messages are displayed and certain outputs are disabled);
Digital contacts configured as alarms and temperature sensors configured as remote contacts with an alarm function do not
affect regulation.
When an alarm occurs, it is displayed on display A during regulation. To return to the normal regulation display, press button
ESC
to change display A.
If the sensor displayed on display A is in alarm, press button
ESC
to display the following screen if the sensor is open:
-LL
or
-HL
if the sensor is in short circuit.
You can display the status of alarms in the alarms page. To access the alarms page, proceed as follows:
Press buttons
and
together to access the main menu. The following screen is displayed:
CLK
yMdH
(model
TH-xxCSx1
) or
AL
noAL
(model
TH-xxSSx1
)
For models with clock, use button
or
to display the following screen:
AL
noAL
.
Display A displays the alarms page and display B displays an alarm message (see tables below).
Alarm message tables (from contact)
DI1 (
M03
=5) and/or AI1 (
M07
=8)
DI2 (
M05
=5) and/or AI2 (
M09
=8)
AI3 (
M11
=8)
EE1
Alarm
No alarm
No alarm
EE2
No alarm
Alarm
No alarm
EE3
Alarm
Alarm
No alarm
EE4
No alarm
No alarm
Alarm
EE5
Alarm
No alarm
Alarm
EE6
No alarm
Alarm
Alarm
EE7
Alarm
Alarm
Alarm
For the position of the contact corresponding to the alarm position, refer to
“10. Digital and analogue input logic” page 20
.
Temperature sensors configured as internal or remote sensors or water sensor for automatic season changeover (2 pipe) or
minimum thermostat sensor have the following alarm messages, if the sensor is open or in short circuit.
Table of alarms (temperature sensors)
AI3 (
M11
=0/1/2)
AI2 (
M09
=0/1/2)
AI1 (
M07
=0/1/2)
Internal sensor
E01
No alarm
No alarm
No alarm
Alarm
E02
No alarm
No alarm
Alarm
No alarm
E03
No alarm
No alarm
Alarm
Alarm
E04
No alarm
Alarm
No alarm
No alarm
E05
No alarm
Alarm
No alarm
Alarm
E06
No alarm
Alarm
Alarm
No alarm
E07
No alarm
Alarm
Alarm
Alarm
E08
Alarm
No alarm
No alarm
No alarm
