Samson 5100, 5179 operating instructions 8.2Collective error alarm, Operational faults

Operational faults

￿Room sensor RF: Upon failure of the room sensor, the controller functions according to the settings for operation without a room sensor. For example, optimized operation is switched over to reduced operation. Adaptation operation is interrupted. The last determined heating characteristic is not changed anymore.

￿Storage tank sensors SF1 and SF2: Upon failure of one of these sensors, the storage tank is not charged anymore.

Sensor breakage status

In InF7 and InF8 levels, it is possible to see which sensor does not function properly. The status of the sensors is shown over function blocks together with the string bruch. A function block is as- signed to each sensor and is set when the sensor data input is incorrect after one minute.

￿InF7 (only with Co7 -> Fb05 = ON): Error status display of the recognized LON controller and its sensor breakage status, for example

7403b = TROVIS 5174 Controller, sensor breakage bit 03

7919b = TROVIS 5179 Controller, sensor breakage bit 19

The relationship between the set bit and the associated sensor can be found in the Mounting and Operating Instructions (EB) of the recognized LON controller.

￿InF8: Sensor breakage status display of the sensor belonging to the controller. The set bits remain visible in the case of failure for at least one minute ( appears on the right-hand side of the set bit number, see page 69).

When an SMS text message alarm or fax alarm is issued (see sections 8.6 and 8.7) Fuehl ap- pears on the display next to the status of the connected sensors. One “o” appears for every working sensor and one “F” for every defective sensor. The sequence is the same as the set bits on page 69.

￿Example: “Fuehl:oFoFFooooooooooooooooo” = Defective resistor inputs 1, 3 and 4 (return flow sensor RüF1, room sensor RF1 and flow sensor VF1)

8.2Collective error alarm

Should an error occur in the controller, it can be indicated over binary output BA4.

BA4 is activated when the error status register does not equal 0. BA4 is a DC voltage output in an open collector circuit and may only be loaded with 24 V/10 mA at the maximum. If the Col- lective error alarm function is active, BA4 is no longer available for pump management.

Function	WE	Configuration
Potentiometer in pre-control circuit	OFF	Co5 -> Fb16 = ON

68EB 5179 EN