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open again, then the controller starts with the set time delay. If this function has been activated, then
"external OFF" appears in the second line of the display.
13
8.3
External alarm
Should the controller not be operated with float switches, the possibility to give an external alarm using
the SW2 input is given. When the input is closed, then the external alarm is generated. This is also
indicated in the display. The switching behavior of the pump(s) is not affected by this alarm. The alarm
message, however, as well as all other alarms, can be reported further through
the alarm relay or, it can be messaged further through the communication device (modem / SMS),
when there exist.
9
Fault messages
When the control recognizes a fault, then the alarm is produced and the fault is indicated. Following
faults are recognized and processed:
Bit
Fault code
Fault
1
HW
High water.
When the measured level is above the adjusted alarm level or the high water float switch switches, then
this fault message is released after the alarm delay time has elapsed.
The pump(s) are switched on immediately in case of high water, when the pump(s) are in a fault-free
condition.
2
SENSOR
Fault in the measuring system
A fault has occurred in the level measuring system. (short circuit or wire breakage of the level sensor,
inconsistent switching states of the float switches).
The pumps are switched off. When the high water float switches, however, then the pumps are switched
on when the pump(s) are in a fault-free condition.
3
pmin
Pressure below the minimum value
During level measurement using the internal impact pressure sensor, the alarm is released when the
pressure falls below the minimum value.
4
3P
Phase sequence / phase loss
Mains or phase sequence fault. This fault occurs, when phase connection to the controller has been
carried out incorrectly or when there is a loss of at least one of the phases.
5
Accu
Rechargeable battery voltage too low
The rechargeable battery voltage of the controller is below 0.5 V. The rechargeable battery is not
correctly charged yet or it is operating in an almost empty state.
6
Power
Lack of mains voltage
The controller does not have a control voltage; the controller runs with the rechargeable battery, if one is
integrated.
7
Clock
Fault – real time clock
The clock was without power (current) supply over a longer period of time and the date / time could be
incorrect / The clock does not run / The clock has not been adjusted yet after inserting a new
rechargeable battery.
8
Modem
Communication fault
There is a fault in the data communication. For details see separate manual.
9
P1T1
Thermo contact 1 has tripped
The first thermo contact of the pump1 has tripped. The pump is switched off. If AUTO in the menu
"Alarm Reset" has been selected, then the controller will restart again automatically after the pump has
cooled down.
10
P1nxT1
Thermo contact 1 has tripped several times
The first thermo contact of the pump has tripped "n" amount of times. The pump will be switched off.
This fault should be reset on the control panel.
11
P1T2
Thermo contact 2 has tripped
The second thermo contact of pump 1 has tripped. The pump is switched off. This fault should confirmed
on the controller. This fault is also saved to memory after power loss and is 0 voltage safe.
13
only with HSK25
HSK_operating_manual_English_Ver3.doc
HOMA Pump Technology
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