178
ADV200
WA • Functions description and parameters list
ADV200 WA
Controller
Pump 1
ADV200 WA
Follower
Pump 2
ADV200 WA
Follower
Pump 3
ADV200 WA
Follower
Pump 8
from Controller
Dig Out Opt Speed
from Controller
Dig Out Opt Speed
from Controller
Dig Out Opt Speed
+24V ext
Dig In Pump 2
Maintenance
Dig In Pump 3
Maintenance
Dig In Pump 8
Maintenance
Dig In Pump 1
Maintenance
Dig In
System START
Digital Output Start / Stop
Digital Out Pump X
Available / NOT Available
Pressure / Flow / Level sensor
The system has to be enabled by means of the START System digital input, configurable with parameter 11350.
NOTE:
The controller must always be connected to an ex24VDC power supply to keep the regulator card active even if the
controller inverter malfunctions or if pump 1 is put into maintenance.
Operating Logic
The controller receives the pressure/flow value from the sensor on an
analog input
(see Main Menu/Analog Inputs for
the configuration and menu 26.3 – PROCESS/PID 2 REFERENCES for the plant configuration * of pressure/flow).
* Nota:
The PID of master inverter must be configured using the same procedures for operation with a single pump.
The system has to follow the requested pressure/flow value, and to do this the pumps have to rotate at a set speed.
Rotation speed differs based on the selected control mode. Select one of the following three control types with param-
eter 11400. The following modes are available:
1) ALL SAME SPEED: the system rotates all of the available pumps at the same speed in order to reach the required
pressure/flow reference. All of the available pumps rotate at the speed calculated by the controller, which is set via
the
Vref analog output.
In this way, all of the pumps rotate at Vref speed.
2) MASTERMODE: the controller’s PID control calculates a
Vref
speed value that is then set on the system’s follower
drives via a
Vref analog output.
The minimum number of pumps needed will be active. The pumps therefore rotate
at the same Vref speed. In this case, as opposed to the one above, only the pumps needed are in rotation.
3) OPTIMAL SPEED: the follower pumps rotate at the optimal speed (Best Efficiency Point) for the pump. The system
therefore activates the follower pumps needed and runs them at optimal speed in order to reach the required pres-
sure/flow reference. Optimal speed is configured on each drive via a specific parameter.
OPTIMAL SPEED
MASTER MODE
ALL SAME SPEED
PAR 11400 ControlMode
If you select MASTERMODE or OPTIMAL SPEED, the controller supplies the speed reference to all of the followers
via the Vref analog output.
If you select OPTIMAL SPEED, the followers receive the command to follow BEP optimal speed (set on each drive via
parameter 11360) via the
Dig Out Opt Speed
digital output. The Vref signal is not used.
Specifically, if the Dig Out Opt Speed digital output is 1, the speed value transmitted by the controller is the optimal
speed configured via parameter 11360
Optimal Speed
; if the
Dig Out Opt Speed
digital output is 0, the speed value
used by the drive is the Vref transmitted by the controller.
Содержание ADV200 WA
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Страница 274: ...274 ADV200 WA Block Diagrams G Block Diagrams System Diagrams Index Drive overview ...
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