Rotex Solaris User Manual

6 x Faults and disturbances
50
FA ROTEX Solaris - 08/2007
6 Faults and disturbances
6.1 isplay of events
Via the menu item Selection 2/2\System\Events memory and after entering the Expert password (see Section 5.3.4 and Fig. 5-6),
events occurring during operation can be displayed. For this purpose, the Solaris control unit contains a simple fault diagnosis
system. The events memory stores the nature and time of the event. The event is displayed in plain text and a code, the time
since the event occurred is shown in hours. Starting with the most recent event, you can scroll through the individual events by
means of the Info key. If the parameter "delete" is shown in the menu item: Selection 2/2\System\Events memory is set to "yes",
all the events will be deleted. Deletion of individual events is not possible. An overview of the events memory is given in Table 6-1.
Tab. 6-1 Events memory
Sensor-specific error messages
With a break or short circuit in a sensor or sensor cable, the Solaris control unit reacts as follows (see Table 6-2):
– A blinking code letter in the status line indicates the fault and an error message is generated.
– The lamp associated to the sensor blinks.
– In addition, the control unit automatically intervenes in system operation.
All other sensor values remain accessible via the arrow keys.
Event
code
Plain text
display
Description Status
display
(blinks)
Lamp
(blinks)
Consequence
0 Solar panel Solar panel sensor: Short-circuited or open K TK
Permanent switch-off of P1 and P21 Return flow Return flow sensor: Short-circuited or open R TR
2 Storage tank Storage tank sensor: Short-circuited or open S TS
3 Flow FlowSensor Short-circuited or open D
Operation without FlowSensor
4 Feed FlowSensor Short-circuited or open V
5 A/D Internal A/D converter fault G
Permanent switch-off of P1 and P26 Supply Internal supply voltage fault G
7 Reference Internal reference voltage fault G
8 Reset Overall reset was carried out G Parameters are set to default (factory) values,
system restart
12 Start flow Minimum flow rate V1 (Fig. 4.2) was not
reached during the starting phase after the
time "Time P2" has elapsed –
Description Item 4
FTV
Permanent switch-off of P1 and P2
13 TS > Tmax -Max. storage tank temp. ("TS max") exceeded
– Description Item 1
TS
Temporary switch-off of P1 and P2
14 TR >> TS TR - TS > 10 K and TR > 40°C –
Description Item 2
TR
15 TK >
TK perm
Max. permissible solar panel temperature
("TK perm") exceeded – Description Item 3
TK
16 Interrupt Interrupted flow detected during operating
phase (V < "S-Flow")
Temporary switch-off of P1 and P2 (at least during
stabilisation period), disabling of present and all lower
pump output stages, refilling with P1 and P2 with
"Time P2" with next switch-on condition.

Rotex Solaris Specifications

General

Brand	Rotex
Model	Solaris
Category	Heating System
Language	English