Homa HSK15, Operating Manual, Page: 21 / 39

HSK_operating_manual_English_Ver3.doc
HOMA Pump Technology -
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Due to the graphic limitations of the display, the single bits can not be entered as series of 32 zeros
and ones.
Four bits at a time are compiled in a group (groups 1…8). In each group, four fault bits (0000, 0001,
0010, … 1000) are coded, which must be compiled and must be converted into a hexadecimal digit
(0,1,2,3,4,5,6,7,8,9,A;B;C;D;E;F) as shown in the table given below.
Example: In the first group the faults HW (0001), SENSOR (0010) and 3P (1000) are to be activated.
Therefore the bits 1011 must be set. From the table, the hexadecimal digit "B" results as
the mask value for the group 1.
For groups 2-8, the same procedure is carried out. The mask value is defined such that the
determined eight hexadecimal digits are written one after another beginning from group 8 (left) up to
group 1 (right). Thus a mask word is formed by 8 hexadecimal digits, which must be entered into the
corresponding menu of the CPSm.
The input is effected analogous to the normal entering of numbers, with the only difference that after
the 9 the “digits” A,B,C,D,E,F follow, resulting in a total of 16 possibilities for each "digit".
If, for example, only the faults of pump1 are to be activated, then all bits of the groups 8,7,6 must be
(0000)=0
HEX
. The bits of groups 3,4 must be (1111)=F
HEX
and those of group 5 must be (0111)=7
HEX
,
the bits of the groups 1and 2 must be again (0000)=0
HEX
. Therefore the fault mask is 0007FF00.
If, for example, only the faults aux1 and aux2 for each pump and the external faults are not to be used,
then in groups 5 and 8, the resulting value is (0001) = 1
Hex
, in all other groups the value (1111)=F
HEX
Therefore the mask word is 1FF1FFFF.
Bit Fault short
text
Group Bit in
Group
Fault auto
General faults
1 HW 1 0001 High water x
2 SENSOR 1 0010 fault in measuring system x
3 pmin 1 0100 Drop of pressure below the minimum set value n
4 3P 1 1000 Wrong phase sequence, phase loss x
5 Accu 2 0001 Rechargeable battery voltage too low x
6 Power 2 0010 Mains loss (the controller runs on the rechargeable
battery voltage supply) x
7 Clock 2 0100 Fault – real time clock n
8 Modem 2 1000 Communication fault x
Fault pump 1
9 P1T1 3 0001 Thermo contact 1 has tripped x
10 P1nxT1 3 0010 Thermo contact 1 has tripped several times n
11 P1T2 3 0100 Thermo contact 2 has tripped n
12 P1MS 3 1000 Motor starter has tripped x
13 P1FI 4 0001 RCD (ELCB) has tripped x
14 P1DI 4 0010 Leakage fault x
15 P1tmax 4 0100 Pump run time has been exceeded x
16 P1Imin 4 1000 Pump current too low x
17 P1Imax 5 0001 Pump current too high x
18 P1aux1 5 0010 (reserved) -