Xylem Lowara Q-Smart Manuel D'installation page 55

The pumps cease to perform: the impel-
o
ler is broken.
Wrong selection of pump: change the
o
pump.
•
The motor doesn't run:
It is damaged and must be replaced.
o
Contact the technical assistance service.
The thermal protector inside the motor
o
is faulty or broken.
The capacitor is broken.
o
N° Description
A39 External fault alarm
Configuration of the indication
of an external alarm connected
to digital input D IN PROG
(c38=2).
Troubleshooting:
The Alarm is detected by an external device. The
logic is configured by the parameter r38. All pumps
are stopped and they don't run until the alarm ap-
pears.
The alarm is excluded in manual mode.
Causes/solutions
•
Check the condition of the external device,
replace it if it is damaged.
•
If an alarm appears but the device is in good
condition:
The cable is faulty or worn, replace it.
o
N° Description
A53 No flow of water to the pump
alarm.
Troubleshooting:
No flow of water from probe circuit alarm. The wa-
ter level at the suction of the pump or the pressure
set is below the minimum level. All the pumps are
stopped and protected against dry running. LEDs
(4), (6) on.
The alarm is excluded in manual mode.
N° Description
A54 Minimum threshold alarm
Troubleshooting:
The pressure of the system does not exceed the
set value of the Minimum threshold parameter
(r54). After the delay time par t54 all the pumps
are stopped and protected against dry running.
The alarm is excluded in manual mode.
Causes/solutions
•
The pump (impeller or diffuser) is damaged.
Contact the technical assistance service.
•
The motor doesn't run:
It is damaged and must be replaced.
o
Contact the technical assistance ser-
vice.
The thermal protector inside the motor
o
is faulty or broken.
N°
A55
Troubleshooting:
The pressure of the system exceeds the set value
of the Maximum threshold parameter (r55).
After the delay time par t55 all the pumps are
stopped.
Reset
The alarm is excluded in manual mode.
Causes/solutions
•
•
N°
A56
Troubleshooting:
The system is blocked because the same alarm is
detected 5 times in the last 30 minutes. Use pa-
rameter c57 to reset and restart the system.
Causes/solutions
•
Reset
Auto
10.1
Check the following programming parameters up-
on startup.
1.
Reset
Auto
2.
3.
4.
Precaution
en - Original instructions
The capacitor is broken.
o
Description
Max threshold alarm
The pressure has exceeded the max pres-
sure: check the set value (r55).
Wrong pump selection: replace the pump.
Description
The same alarm is detected
5 times in the last 30 minutes
Identify the type of alarm and resolve it
10 SYSTEM SETUP AND
OPERATION
Parameters to check upon startup
Define the installation and proper control de-
vices (sensor, digital inputs):
1 or 2 pressurisation pumps; refer to
o
Figures 17 to 38 and
1 or 2 sewage or filling pumps; refer to
o
Figures 11 to 16, 39
Connect the sensor and/or digital input to the
proper terminals. Refer to figures 7,
During switch on: Select the section soft-
ware 5.4.3 and the type of sensor
sewage or filling pump = sE software.
o
booster pump = bS software.
o
P= pressure switch
o
S: electronic sensor
o
G: float switch
o
Set the parameters in the parameter menu
according to the type of application and pump:
sewage or lifting pump (sE software),
o
see Tab 2.
booster pump (bS software), see
o
11 MAINTENANCE
Reset
Auto
Reset
Manual
47 to 53.
to 46 and 54 to 64.
8 and 9.
Tab 3.
55