SEPAMAT F-SC_Manual_Vers.1.0e_en
27
Protection and Alarm details:
Current monitoring (A1):
The controller immediately stops the pump in the case the current exceeds the maximum limit
defined (F2).
Flow rate monitoring (A7):
To prevent the pump from working when the fixtures are closed, the software compares the
function with the pump performance curve. If the actual operating point of the pump is below the
pump curve, then Minimum Flow will be displayed (the pump performance curve is created during
the self-initialization at start-up).
Dry running protection (A8):
To prevent the pump from continuously running during a water shortage, once the minimum limit is
achieved, the pump is turned off with the LED Dry Working indicated. Every 15 min, an automatic
restart will follow. After 5 trials, the alarm indicator will become permanent and a manual restart will
be necessary (press STOP, then START).
9. Trouble-shooting
Description
Cause
Solution
Pump does not start:
Dry Working LED ON,
ALARM LED OFF
Dry
Working
ALARM
Motor stop for dry running
condition of the pump, during
one of four restarts of this
problem, separated by 15
minutes.
After the fifth unsuccessful
restart, the installation goes into
alarm mode.
Wait for automatic restart or
Manually begin the restart
sequence by pressing STOP.
Start the pump by pressing
START
Pump does not start:
Dry Working LED ON,
ALARM LED ON
Dry
Working
ALARM
a.) Air in the suction line
a.) Check mains water pressure,
clean mains water valve
sieve, then go through start-
up and use (see section 7)
b.) Air in the suction line,
unsealed
b.) Seal the connections and
suction line, then go through
start-up and use (see section
7)
c.) Check valve in the suction
line, unsealed
c.) Replace the check valve
