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Xylem Lowara Q-smart Installation, Operation & Maintenance Manual page 45

Single phase electronic control panel

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  • ENGLISH, page 32
c57
Reset the
0= No
alarm log
1= Yes
6 SPECIAL FUNCTIONS
SEWAGE APPLICATION (par. SE is selected,
section 5.4.3)
Auto-test RUN
6.1
The Auto-test function can be used to switch on
the pumps when these have been turned off for a
long time.
The pumps are switched ON by the clock or after a
set period of inactivity (c24).
How to start the auto-test: activation by clock
(c24=1)
If the pumps are running, the auto-test is put on
hold and this text is shown on the display in blink-
ing mode:
tSt
When the pumps are in standby, the auto-test
starts and the test in progress and the pump in use
are shown on the display in blinking mode:
tSt
P1
How to stop the auto-test
The auto-test can be stopped at any time by press-
ing the OK button.
What does the auto-test do?
Auto-test activated by clock time
The Auto-test function involves the following set-
tings and sequences:
1.
Enabling the function (c24=1)
2.
Setting the day, hour, minutes of the test (h26,
h27, h28).
3.
Switching ON pump P1 after the set time.
4.
Stopping pump P1 after the set time (h29).
5.
Waiting for a minute
6.
Switching ON pump P2.
7.
Stopping pump P2 after the set time (h29).
Auto-test activated after period of inactivity
The Auto-test function involves the following set-
tings and sequences:
1.
Enabling the function (c24=2)
2.
Setting the inactivity time for Pump 1 (t24) or
Pump 2 (t25).
3.
Switching ON Pump P1 after the set time (t24).
4.
Stopping pump P1 after the set time (h29).
5.
Waiting for a minute
6.
Switching ON Pump P2 after the set time (t25).
7.
Stopping pump P2 after the set time (h29).
-
0
The Auto-test is interrupted if the pressure or the
level in the system changes, requiring the pumps
to run automatically. The Auto-test is postponed.
Starting and stopping the pumps
6.2
(parameter c14)
The following description is valid when the sewage
software is enabled (parameter c02=0). If lifting is
enabled in the parameter (c02=1), the start and
stop functions are reversed.
Float switches
6.2.1
The pumps are switched on and stopped by the
float switches. Various options are provided.
0=G1 and G2
Pump 1 is switched ON and stopped by float
switch G1.
Pump 2 is switched ON and stopped by float
switch G2.
The high level alarm is activated by G MAX but
neither of the pumps is switched ON.
1=G MIN
Pump 1 is switched ON by float switch G1.
Pump 2 is switched ON by float switch G2. Both
pumps are stopped by G MIN. The high level
alarm is activated by G MAX but neither of the
pumps is switched ON.
The break of G MIN is diagnosed, and the pumps
are switched on/stopped by G1, G2.
2=G MAX
Pump 1 is switched ON and stopped by float
switch G1.
Pump 2 is switched ON and stopped by float
switch G2.
The high level alarm is activated by G MAX and
both pumps are switched ON. Pump 2 is switched
ON after 2 sec. This option is to prevent excessive
and rapid filling of the tank. The pumps are then
stopped by G1, G2.
The G MIN low level float switch does not impact
on the start condition of the pumps.
3=G MIN+G MAX
Pump 1 is switched ON by float switch G1.
Pump 2 is switched ON by float switch G2.
The high level alarm is activated by G MAX and
both pumps are switched ON. Pump 2 is switched
ON after 2 sec. This option is to prevent excessive
and rapid filling of the tank.
The break of G MIN is diagnosed, and the pumps
are switched on/stopped by G1, G2.
The G MIN low level float switch does not impact
on the start condition of the pumps.
Electric probes
6.2.2
Pumps are switched on and stopped by electric
level probes. Various options are provided.
en - Original instructions
45

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