16
E 136 - XTA 624 C1 Eng. 22.11.10 AM REV. 02
We reserve the right to make changes without notice
COSTER
25. SYSTEM STARTUP TEST
The test must be carried out once installation is completed and the wiring and configuration have
been executed and checked.
Using the + and – keys, select:
• output to be tested:
– Y1 MODUL. or Y1 2 STAGES or Y1 3 STAGES: depending on M2.
3 setting .
– Y2 MODUL. or Y2 2 STAGES or Y2 3 STAGES: depending on M2.
5 setting .
– PUMP M1 ;
– PUMP M2 ;
– Ys ;
• status :
– with Y...MODUL. : IDLE ; CCLOSES ; OPEN
– with Y.. 2 STAGES : ON 1 ; ON 1+2 ; OFF.
– with Y.. 3 STAGES : ON 1 ; ON 2 ; ON 1+2 ; OFF.
– with Ys : 0 VOLT ; 5 VOLT ; 10 VOLT.
– with PUMP M1 and PUMP M2 : ON ; OFF.
Check results.
M3.1
O u t p u t : Y 1 M O D U L .
S t a t u s : I D L E
24. ALARMS
The controller processes two types of alarms:
– alarms related to functional irregularities affecting the controller and the controlled systems
(LED 6.
10)
– alarms related to short and open detector circuits (LED 6.
8)
Alarms are signaled by LEDs located on the controller’s front panel. On the display page alarms are
identified by a letter “A” flashing alternately to the number corresponding to the relevant alarm.
Alarms can be transmitted to a local and/or a central telemanagement computer through the C-Bus
connection.
24.
1 Functional alarms
Functional alarms occur when there is a continuing deviation between actual and desired measures.
These alarms do not affect the controller’s proper operation.
“By default” all alarms are disabled except clock alarm (8)
Use the + and – keys to enable desired alarms, entering numbers in place of the dashes.
Number flashing = the alarm is on
IAlarm limit values and delays can only be changed via computer.
Types and reasons of alarms:
1 = flow temperature difference (if only B1 is connected)
–for actual temp. lower than T°fHea when Y..: Heating
or higher than T°fCoo when Y..: Cooling
3 = room temperature difference (if B3 is connected)
–for actual temp. lower than T°rHea when Y..: Heating
or higher than T°rCoo when Y..: Cooling
4 = preheating temperature difference (if B4 is connected and when Y..: Pre-heating)
– for actual temp. lower than desired value
8 = internal clock cannot be disabled
– when the clock assumes inconsistent values
24.
2 Detector alarms
Detector alarms occur when there is a short circuit or open circuit affecting the connected de
-
tectors.
The effect of alarm situations is delayed by one minute.
By default” all alarms are disabled.
Use the + and – keys to enable desired alarms, entering numbers in place of the dashes.
Types and effects of alarms:
1 = flow temp. detector (B1): valve stops where it is
2 = outside temp. detector (B2): valve stops where it is
3 = room temp. detector (B3): valve stops where it is
4 = preheating temp. detector (B4): valve stops where it is
M2.10
A l a r m s F u n c t i o n .
– – – 8
M2.11
A l a r m s D e t e c t o r
– – – –
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