19
10.4.3 Operating mode (1.2.1)
Fig. 11
Operating mode
Description
Here the operating mode of the Hydro MPC booster set is shown
as well as from where the Hydro MPC is controlled.
Operating modes
Hydro MPC has five operating modes:
1.
Normal
The booster set adapts its performance to the requirement.
2.
Max.
The booster set has a constant high performance. Normally all
pumps run at maximum speed.
3.
User-defined
The booster set has a constant performance set by the user.
Usually it is a performance between
Max.
and
Min
.
4.
Min.
The booster set has a constant low performance. Normally
one pump is running at a speed of 70%.
5.
Stop
All pumps have been stopped.
The performance required in the operating modes
Max.,
Min.
and
User-defined
can be set in the
Settings
menu, see
max. and user-defined duty (4.3.14)
The current operating mode can be controlled from four different
sources:
Fault
,
External signal
,
CU 351
and
Bus
.
The priority of the sources is shown in the following table.
Fault
has the highest, and
Bus
the lowest priority.
Furthermore, the table shows five operating modes:
Stop
,
Max.
,
User-defined
,
Min.
and
Normal
. These operating modes are
prioritised.
The command from the source or operating mode with the
highest priority will always be in force.
Finally, it is possible to relate a source to an operating mode, for
instance
External signal
to
Max.
As several digital inputs can be set to external operation at the
same time, the CU 351 has an order of priority of the external
commands.
Example
The source
Fault
may for instance relate to the function dry-
running protection. In case of water shortage, the operating mode
will be
Stop
, as this mode has first priority. Other sources can
result in other operating modes, depending on priority.
Control source
Hydro MPC can be set to remote control via an external bus
(option). In this case, a setpoint and an operating mode must be
set via the bus.
In the
Settings
menu it is possible to select whether the CU 351
or the external bus is to be the control source.
The status of this setting is shown in the display
Operating
mode
.
10.4.4 Setpoint (1.2.2)
Fig. 12
Setpoint
Description
This display shows the selected setpoint and whether it comes
from the CU 351 or an external bus.
The display also shows all seven possible setpoints from CU 351
(for closed- and open-loop control). At the same time, the
selected setpoint is shown.
As it is a status display, no settings can be made.
Setpoints can be changed in the
Operation
menu.
T
M
03
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40
05
Source
Priority
Operating modes
Stop Max.
User-
defined
Min.
Normal
Fault
1
x
x
x
x
x
External
signal
2
1.
2.
3.
4.
5.
CU 351
3
x
x
x
x
x
Bus
4
x
x
x
x
x
TM
03
22
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40
05
www.motralec.com / [email protected] / 01.39.97.65.10
Содержание BoosterpaQ Hydro MPC
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