Xylem Fixed speed booster sets programming manual/Electr Manual de usuario descargar pdf (Pagina 43)

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When the autotest has failed

When the autotest has failedWhen the autotest has failed

When the autotest has failed

If during the autotest (whatever pump is operating) the minimum pressure switch (CONV.L.SWITCH)

installed on the set trips, the autotest is definitively interrupted and the set resumes working in automatic

mode.

The display shows the message AUTOTEST FAIL P#.

CONV.L.SWITCH intervention is delayed by the time set on the parameter AUX3 IN DELAY.

How to interrupt the autotest

How to interrupt the autotestHow to interrupt the autotest

How to interrupt the autotest

To interrupt the autotest, press the button P3 (ESC).

6.2.6 LOAD LOSS COMPENSATION

6.2.6 LOAD LOSS COMPENSATION6.2.6 LOAD LOSS COMPENSATION

6.2.6 LOAD LOSS COMPENSATION

Sometimes in the systems there is a fall in pressure caused by load losses along the pipes and these

increase when the required water flow increases.

Phase

Display Comment Field Default

COMPENSATION

COMPENSATIONCOMPENSATION

COMPENSATION Available only with systems with a

pressure sensor

1 COMP.THRESHOLD

Enable load loss compensation with

increase of the start and stop thresholds

in bar for the pumps after the first.

Setting pressure = 0 bar disables the

function.

000.00 bar 000.00

bar

To compensate system load losses it is possible to enable a control that supplies a pressure proportional

to the load. A direct measurement of the flow is not taken, but it is believed that it is proportional to the

number of pumps running.

When each duty pump after the first is started, the UPPER and LOWER thresholds are increased by the

value indicated in the COMP. THRESHOLD parameter.

The jockey pump is excluded.

SUP

INF

1 pompa

2 pompe

3 pompe

Incremento

Soglie variabili per compensazione perdite di carico

6.2.7 PROGRAMMING THE ALARM RELAY

6.2.7 PROGRAMMING THE ALARM RELAY6.2.7 PROGRAMMING THE ALARM RELAY

6.2.7 PROGRAMMING THE ALARM RELAY

The SM30 BSETF3 board has an output alarm relay which is activated as described below for the

following types of alarms:

The alarm rel

The alarm relThe alarm rel

The alarm relay is available and programmable only and exclusively if the AUTOTEST function has not

ay is available and programmable only and exclusively if the AUTOTEST function has not ay is available and programmable only and exclusively if the AUTOTEST function has not

ay is available and programmable only and exclusively if the AUTOTEST function has not

been enabled.

been enabled.been enabled.

been enabled.

If AUTOTEST is enabled, the parameters described below will not be displayed.

If AUTOTEST is enabled, the parameters described below will not be displayed.If AUTOTEST is enabled, the parameters described below will not be displayed.

If AUTOTEST is enabled, the parameters described below will not be displayed.

Increase

1 pump

pump

Variable thresh

olds to compensate load losses

UPPER

LOWER