Grundfos BoosterpaQ Hydro MPC, Инструкция по установке и эксплуатации

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Description
There are two control modes, namely closed and open loop. The
typical control mode is closed loop where the built-in PI controller
ensures that the booster set delivers the discharge pressure
required (setpoint). In open-loop control, the pumps run at a fixed
speed.
Examples:
1. The performance is based on the setpoint set in CU 351, see
example 1.
2. The performance is controlled by a building management sys-
tem connected to the Hydro MPC, see example 2.
Open-loop control is used when the booster set is controlled
by an external controller which controls the performance of the
Hydro MPC booster set via an external signal. In such cases
the Hydro MPC is like an actuator.
3. The speed of the pumps is determined by the signal from a
transmitter monitoring the level in a tank, see example 3.
Example 1
Example 2
Example 3
Setting range
There are two control modes:
Closed and open loop.
Setting via control panel
1. Mark the
Operation
menu with .
2. Mark
Control mode
with or and press .
3. Select the desired control mode with or and press
.
Factory setting
Closed-loop control.
10.5.4 Setting of setpoints (2.3)
Fig. 19
Setting of setpoints
Description
In addition to the primary setpoint 1 (shown in display 2), six other
setpoints can be set for closed-loop control. It is furthermore
possible to set seven setpoints for open-loop control.
As described in 10.7.3 Selection of alternative setpoints (4.1.2)
and 10.7.4 Setting of alternative setpoints 2 to 7 (4.1.2.1 to
4.1.2.7) , it is possible to activate one of the alternative setpoints
by means of external contacts.
TM0
3
223
1
3
90
5
TM
03
23
90
41
05
TM
03
22
32
39
05
T
M
03
23
91
41
05
Speed [%]
Time [sec]
Setpoint
0
5
Speed [%]
Input [V] from
external controller
TM
03
22
33
390
5
T
M
03
22
56
39
0
5
T
M
03
22
82
40
05
Tank
Speed [%]
Level [cm]
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