Pump Control - salmson SXE Instructions De Montage Et De Mise En Service

ENGLISH
Pump priming pulse - Pumps that are shut down with the on/off
control are started up for a few moments every 24 hours in order to
avoid any blocking due to long periods out of service.
When it is planned to switch off the power for a long period, the
pump priming pulse must be ensured by the heating / boiler control.
The pump must be connected up for this purpose (Display --> on).
External "off" control - (For pumps with max. P1 ≥ 500 W. See identifi-
cation plate).
The pump must be energized / de-energized via the external dry
contact. In the case of installations requiring frequent switching ope-
rations (switching on/off more than 20 times a day), provision must be
made for switching on/off by means of the external "off" control.
Input 0-10 V - (For pumps with max. P1 ≥ 500 W only. See identifica-
tion plate).
In the case of operation by controller, the rotation speed can be
controlled by an external voltage signal (0.-10 V). The frequency and,
thus, the rotation speed depends on the voltage as shown in FIG. 5,
input resistance: Ri ≥ 10kΩ.
Output +24 V - (For pumps with max. P1 max. ≥ 500 W only: see indi-
cation plate).
Dry contact voltage for an external receiver/transmitter. The voltage
of +24 V can be loaded with 50 mA maximum. The voltage can withs-
tand short circuits.
SSM - (See dual pump).
4.2 Operation in dual pump mode
Both pumps are controlled by the master pump.
If a problem occurs on one of the pumps, the remaining pump ope-
rates in accordance with the commands from the master pump.
Module IF (InterFace) - An IF module, connected to a multiple
connector in the connection compartment of each pump, is requi-
red to allow communication between the master pump and the
slave pump (See FIG. 2). This module is available as optional equip-
ment.
Operation in parallel - The rated power is supplied by the two pumps
operating in parallel.
At low load, only the main pump operates while the second remains
in reserve status.
When the load increases, the main pump steps up its performance
until reaching the point of intersection between the power curves.
This means, that if the power consumed by a single pump at high
speed exceeds the power consumed by both pumps operating in
parallel, the second pump is started up and the two pumps synchro-
nize their speeds in order to remain on the curve representing the
lowest level of electric power consumption.
The light load pump and the booster pump are changed over every
24 hours.
Normal/standby operation - The required performances are provi-
ded by a single operating pump (low or high load).
The other pump is only started up in the event of failure of the first
pump.
The main pump and the standby pump are automatically switched
every 24 hours of actual operation.
Communication interrupt - The slave pump only operates in accor-
dance with the most recent information received by the master
pump.
If one of the pumps fails, the other operates in normal mode as a
single pump.
Master pump off: the slave pump is automatically disengaged.
External "off" control, 0-10 V, output 24 V - (For pumps with P1 ≥ 500
W only: see identification plate). Connected to the master pump
only and affecting the whole system.
SSM - For a centralized command, it is possible to send a default
signal (default opening) to the master pump. In this case it is prefe-
rable to make the contact with only the master pump. The indication
will be perceived by the whole system.

4.3 Pump control

A red LED (See FIG. 2 - item 3) is illuminated in the window when a
problem occurs.
Liquid crystal display (See FIG. 2 - item 4)
The LCD display indicates the pump setting parameters by means of
symbols and numerical values. The lighting-up of the display is on in
continuous. The various symbols have the following meanings:
Symbol Description of the various operating modes
Normal operation: authorization for automatic
switching to low load mode. Low load mode is
activated when there is a minimal heating power
requirement (night mode).
The pump runs in low load mode (decrease at night)
with a minimum rotational speed.
Interruption of automatic switching to low load
mode so that the pump runs in normal regulated
(No symbol)
mode only.
Low load mode activated by the interface conver-
ter, independently of the system temperature.
The dual pump operates in maximum load mode
(master + slave) in parallel.
The dual pump operates in main / reserve mode
(master or slave) on Normal / Standby basis.
The set point differential pressure value is set to
H = 9.0 m.
The pump is regulated to a constant rotational
RPM
speed (1,800 rpm in this case) ( regulating mode).
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Constant Δp-c adjustment: adjustment to a
constant set point differential pressure value (see
FIG. 3).
Variable Δp-v adjustment: adjustment to a
variable set point differential pressure value (see
FIG. 4).
The manual piloting mode deactivates module
adjustment. The pump rotational speed is maintai-
ned at a constant value between 800 and 2,800
rpm. The rotational speed is adjusted on the rotary
knob.
When controller mode is activated, the pump rota-
tional speed is adjusted by the 0-10 V input (only for
P1 ≥500 W). In this case, the rotary knob plays no part
in indication of the set point value.
The pump is on.
The pump is off.
Using the rotary knob (see FIG. 2 - item 5)
Starting with the basic setting, a setting menu is selected in a prede-
fined order each time you press the knob (press for longer than one
second for the first menu). The selected symbol flashes. When you
turn the knob to the left or to the right, the parameters in the display
are decreased or increased. The new setting symbol flashes. You
select the new setting by pressing the knob. You then go on to the
next menu.
The set-point value (differential pressure or rotation speed) can be
modified in the basic setting by turning the regulating knob. The new
value flashes. The new set-point value is selected when you press
the knob.
If you do not make any of these adjustments, the basic setting reap-
pears after 30 seconds.
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