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ANOmALIES SIGNALLING.
The cascade and zones regulator displays and sto-
res every time all the anomalies that happen.
There are four different types of anomalie:
1 - Sensor anomalies signalling.
The values of the sensors resistance that are
out of range are considered as fault. Accor-
ding to the specific function the faults are
indicated by code 10…20; according to the
type of fault, code 0 indicates the short circuit
and code 1 signals the cutoff.
2 - Control errors signalling.
These errors codes estimate the result of the
regulations. These anomalies are indicated
through codes 50….60 and index 0, 1 or 2.
3 - Bus errors signalling.
These codes signal possible address errors
such as a double address or the non-reco-
gnition of a bus address. These anomalies
are indicated through code 70 and index
0 or 1.
4 - Boiler electronic card errors signalling.
These error codes are related to the boiler
electronic card and they are divided in two
types: operational anomalies with manual
reset with code En-XX (see instruction ma-
nual) and operating anomalies with electric
reset (automatic reset) with code Bn-XX (see
instruction manual).
Errors management:
- anomalies are visualized on the regulator display.
- system anomalies are visualized in the information
level with the related value.
- if necessary the errors are saved in the error
register (see description below).
- setting the parameters properly, the errors activate
an error signalling output for the connection to an
optical or acoustic signal.
Anomalies signalling tables:
Sensors and variable inputs:
Description
Fault type
Code
External sensor
Cutoff
10-0
External sensor
Short circuit
10-1
Boiler sensor
Cutoff
11-0
Boiler sensor
Short circuit
11-1
Delivery sensor MC 1
Cutoff
12-0
Delivery sensor MC 1
Short circuit
12-1
Domestic hot water
sensor
Cutoff
13-0
Domestic hot water
sensor
Short circuit
13-1
Variable input VI2
Cutoff
14-0
Variable input VI2
Short circuit
14-1
Variable input VI2
Anomalies signal
14-7
Variable input VI3
Cutoff
15-0
Variable input VI3
Short circuit
15-1
Variable input VI3
Anomalies signal
15-7
