Mains Voltage; Starting-Up; Filling And Ventilating; Setting The Pump Power - Wilo -Veroline IP-E Einbau- Und Betriebsanleitung

The differential pressure sensor must always be connected to the
master.
Ensure that the shielding is correctly connected in
CAUTION!
the terminal box.
IN2 External control signal
x
Can be set in the service menu. Possible settings: 0-10V; 2-10V;
0-20mA; 4-20mA.
The terminal is activated in the Settings menu.
Ensure that the shielding is correctly connected in
CAUTION!
the terminal box. {}
Ext. off: Control input "Priority OFF" for external, potential-free
x
switch.
With contact closed (factory-bridged) the module is ready for
operation.
With contact open the pump is switched off.
Contact load: 24 V DC / 10 mA
Do not connect an external voltage, as this could
CAUTION!
destroy the module.
SBM (collective run signal):
x
potential-free collective run signal (single-pole, double-throw
contact) is available on the SBM terminals. Contact load:
minimum: 12 V DC, 10 mA,
maximum: 250 V AC, 1 A.
SSM (collective fault signal):
x
potential-free collective fault signal (single-pole, double-throw
contact) is available on the SSM terminals. Contact load:
minimum: 12 V DC, 10 mA,
maximum: 250 V AC, 1 A.
Control terminals 1,2,3 GND, 4...20mA, aux, ext. Off
CAUTION!
satisfy the requirement for PELV circuits, the relays
for SELV circuits (according to EN 61800-5-1 / VDE
0160 Part 105).
Optional IF module PLR / IF module LON is inserted into the mull-
x
tiplug in the terminal box.
PLR/LON: supply terminals of the serial, digital BMS interface
(PLR); connection is locked.
DP: Double pump operation
communication between both pumps is via the double pump
cable,
connected to the 'MP' terminals in both terminal boxes.
To this end, connect cables 'L' and 'L' and cables 'H' and 'H'.
The cables must be fed through the M12 cable glands.
Pump/unit must be earthed in compliance with regulations.
x
Prior to commencing work on the pump the supply vol-
tage must be switched off. Work on the module shall
not be started until 5 minutes have elapsed because of
the presence of hazardous contact voltages (capaci-
tors). Check that all connections (potential-free con-
tacts included) are neutral.

8.3 Mains voltage

In general, the pumps operate at 400V 50Hz. The documented
characteristics have been determined on the basis of this voltage.
Different operating conditions result in a different control charac-
teristic.
Control system ∆p-c and ∆p-v
Operating point on max. characteristic
Operating point in control range
Setting range
9
The pump and the module must be at ambient tempera-
ture before being switched on.

9.1 Filling and ventilating

The system must be filled and ventilated properly.
x
To avoid cavitation noise and damage, it is important to ensure a
x
minimum inlet pressure at the suction port of the pump. This
minimum inlet pressure depends on the location and point of
operation and must be determined accordingly. Essential para-
meters in determining the minimum inlet pressure are the NPSH
value of the pump at its operation point and the steam pressure
of the flow medium.
Bleed pumps by loosening the vent valves (Fig. 9, 10, pos. 8.2).
x
CAUTION!

9.2 Setting the pump power

The unit has been designed for a specific operating point (point of
maximum load, calculated maximum heating demand). When star-
ting up for the first time, the pump capacity (delivery head) must
be set in accordance with the unit's operating point. The factory
setting does not correspond to the pumping capacity required for
the unit. It is calculated on the basis of the characteristic diagram
of the selected pump (from the catalogue / data sheet). See also
Fig. 3 and 4
∆p-c (fig. 3)
Draw a line from the operating point to the left. Read set value HS and set the pump in
accordance with this value.
Draw a line from the operating point to
the left. Read set value HS and set
the pump in accordance with this value.
H H see type code
min, max

Starting-up

A dry run will destroy the pump's mechanical
seal.The differential pressure sensor must not be
bled (risk of destruction).
Depending on the fluid temperature and the system
pressure, if the vent screw is completely loosened, hot
liquid or gas can escape or even squirt out at high pres-
sure. Risk of scalding!
Depending on the operating condition of the pump
and/or installation (fluid temperature), the entire pump
can become very hot. Risk of scalding through contact
with the pump!
The minimum volume flow must never be less than 7%
of the maximum volume flow.Too low a volume flow can
cause damage to the mechanical seal.
∆p-v (fig. 4)
Continue the control characteristic until it
meets the max. characteristic, then
continue horizontally to the left, read set
value HS and set the pump in accordance
with this value.
ENGLISH
45