Xylem Lowara SM30 Manual De Instalación, Funcionamiento Y Mantenimiento página 39

6.2.4 TIMING
Timing is active both with systems with pressure switches and with systems with sensors.
Phas Display
e
0 TIMING
1 P1 START DELAY
2 P2-3 START
DELAY
3 P1 STOP DELAY
4 P2-3 STOP DELAY
5 DYNAMIC TIMES
6.2.5 PERIODIC AUTO TEST-RUN
In systems subject to long periods of inactivity it is recommended to perform a periodic automatic test
(auto test-run) with the aim of checking the performances of the group.
In any case the autotest cannot replace programmed maintenance, which must be carried out
periodically. A weekly interval is recommended.
To start the test request the board's internal clock may be used, or an external command. When
autotest is enabled, the alarm relay is automatically configured to control the solenoid valve.
It is also necessary to ensure that the parameter CONFIG. IN. AUX3 in the DIGITAL IN/OUT MENU
is set as CONV.L.SWITCH (Minimun Pressure Switch).
Phas Display
e
0 AUTO-TEST
RUN
1 AUTO TEST
REQ.
Comment
Delay in starting P1 (jockey included).
The time count begins from the start
request from the pressure
switch/sensor.
Delay in starting P2 - P3. The time
count begins from the start request
from the pressure switch/sensor.
Delay in stopping P1 (jockey included).
The time count begins from the stop
request from the pressure
switch/sensor.
Delay in stopping pumps P2 - P3. The
time begins from the stop request from
the pressure switch/sensor.
Settable only on system with sensor.
Halves the times previously set in the
case of excessive variation of the
pressure/level/etc. of the system.
Comment
Autotest command source.
The possible settings are:
Disabled: autotest is inhibited.
Internal clock: autotest is activated on
the day and time requested from the
SM30 BSETF3 board by the internal
clock.
Ext. command: autotest is activated by
the external command connected to the
digital input AUX1
Field Default
0..100 s 3 s
0..100 s 5 s
0..100 s 5 s
0..100 s 3 s
YES NO
NO
Field Default
DISABLED DISABLED
INTERNAL
CLOCK
EXT.ON
/OFF
en
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