Wilo Multivert MVISE 200, Installation And Operating Instructions Manual

Page: 53 / 258

53 Installation and operating instructions –
Wilo-Multivert MVISE 3G
English
NOTICE: If the pump is provided alone, and not
integrated into a system installed by us, the con-
figuration mode upon delivery is the “speed stage
control” mode .
“Speed stage control” mode (Fig. 1)
• The duty point is obtained by manually adjust-
ing the speed stage via the menus or using an
external command signal for the speed stage
expressed in %.
• For entry into service, the motor speed stage
should be set at 2400 rpm.
“Constant pressure: pc” mode (Fig. 2)
• In “p-c” mode, the converter maintains a con-
stant pressure at the pump discharge irrespective
of the delivery rate required by the installation.
• The duty point is defined manually via the menus
or an external signal.
• This mode can be accessed when the
open hydraulic loop parameter is selected in
menu 5.7.8.0.
• A relative pressure sensor is used for control
(sensor: accuracy: ≤ 1 %; using between 30 %
and 100 % of the measuring range).
• For entry into service, the set pressure should be
set at 60 % of the pump’s maximum pressure.
“Δp-c” mode (Fig. 2)
• In “Δp-c” mode, the converter maintains a con -
stant differential pressure (generated by the
pump) irrespective of the delivery rate required
by the installation.
• The differential pressure is defined manually via
the menus or via an external signal.
• This mode can be accessed when the
closed hydraulic loop parameter is selected in
menu 5.7.8.0.
• A differential pressure sensor is used for control
(sensor: accuracy: ≤ 1 %; using between 30 %
and 100 % of the measuring range).
• For entry into service, the set pressure should be
set at 60 % of the pump’s maximum pressure.
Pc
P
at m
Pr
essur
e
Time
Δp-c
Δp-c
Pr
essur
e
Time
“Variable pressure: Δp-v” mode
(Fig. 2)
• In “Δp-v” mode, the converter changes the dif -
ferential pressure of the pump in a linear manner,
in line with the delivery rate required by the
installation.
• The duty point (Pset) is defined manually via the
menus or an external signal.
• The duty point at a zero delivery rate (%Pset) is
defined manually via the menus.
• This mode includes zero delivery rate detection
that switches off the pump.
• A differential pressure sensor is used for control
(sensor: accuracy: ≤ 1 %; using between 30 %
and 100 % of the measuring range).
• For entry into service, the set pressure should be
set at 60 % of the pump’s maximum pressure.
• This mode can be accessed when the
closed hydraulic loop parameter is selected
in menu 5.7.8.0.
“PID control” mode
• The converter enables control with another type
of sensor (temperature, delivery rate, etc.) via
control of the PID (proportional integral differen-
tial control).
• The duty point is expressed as a percentage of
the measurement range of the sensor used. This
point is defined manually via the menus or via an
external control signal.
8.3.7 Menu description
List of menus (Fig. A5)
< 1.0.0.0 > Setpoint setting
< 2.0.0.0 > Operating mode setting
< 3.0.0.0 > On/Off pump setting
< 4.0.0.0 > “Information” menu
Reading the pump parameters
< 5.0.0.0 > “Service” menu
Access to the pump parameter
settings
< 6.0.0.0 > Error acknowledgement
If one or more malfunctions occur, the
malfunction page will appear. The let -
ter “E” followed by a three-figure code
will appear (see section 10).
< 7.0.0.0 > Access lock
The “Access lock” can be accessed if
DIP switch 2 is in the ON position.
CAUTION! Risk of property damage!
Incorrect setting changes may cause pump oper-
ation faults which may lead to damage of the
pump or installation.