Danfoss VACON 100 FLOW Series - 11.17 Multi-pump Function

1.
-
-
-
2.
-
-
3.
-
-
4.
-
5.
-
-
-
6.
-
-
-
11.16.2 (ID 1049) Start Signal
Location in the menu: P3.14.1.2
Use this parameter to set the signal for starting and stopping the PID controller 2 for external usage.
If the PID2 controller is not enabled in the Basic menu for PID2, this parameter has no effect.
11.17 Multi-pump Function
11.17.1 The Multi-pump Function
The Multi-pump function allows controlling a system where the maximum of 8 motors, for example, pumps, fans or compressors
operate in parallel. The internal PID controller of the drive operates the necessary quantity of motors and controls the speed of the
motors, when there is demand.
11.17.1.1 Commissioning Multi-pump (Multidrive)
The check list helps in the configuration of the basic settings of the Multi-pump (multidrive) system. If the keypad is used for param-
eterization, the application wizard helps to make the basic settings.
Start the commissioning with the drives that have the PID feedback signal (pressure sensor, for example) connected to an analog
input (default: AI2). Go through all the drives in the system.
Procedure
Examine the wiring.
See the correct power cabling (mains cable, motor cable) of the drive in Installation Guide.
See the correct control cabling (I/O, PID feedback sensor, communication) in Illustration 20 and in Illustration 18.
If redundancy is necessary, make sure that the PID feedback signal (by default: AI2) is connected to a minimum of 2
drives. See the wiring instructions in Illustration 20.
Do a power-up of the drive and start the parameterization.
Start the parameterization with the drives that have the PID feedback signal connected. These drives can operate as
the master of the Multi-pump system.
Parameterization can be done with the keypad or PC the tool.
Select the Multi-pump (multidrive) application configuration with parameter P1.2.
Most of the Multi-pump-related settings and configurations are made automatically, when the Multi-pump (multi-
drive) application is selected with parameter P1.2 Application (ID 212). See 4.1.5 Multi-pump (Multidrive) Application
Wizard.
If the keypad is used for the parameterization, the Application wizard starts when parameter P1.2 Application (ID 212)
is changed. The Application wizard helps with Multipump-related questions.
Set the motor parameters.
Set the motor nameplate parameters specified by the nameplate of the motor.
Set the total number of drives used in the Multi-pump system.
This value is set with parameter P1.35.14 Quick Setup Parameter Menu.
The same parameter is in the menu Parameters -> Group 3.15 -> P3.15.2.
By default, the Multi-pump system has 3 pumps (drives).
Select the signals that are connected to the drive.
Go to parameter P1.35.16 (Quick Setup Parameter Menu).
The same parameter is in the menu Parameters -> Group 3.15 -> P3.15.4.
If the PID feedback signal is connected, the drive can operate as the master of the Multi-pump system. If the signal is
not connected, the drive operates as a slave unit.
AB298035655957en-000201 / DPD01083 | 253Danfoss A/S © 2023.08
Parameter Descriptions
VACON® 100 FLOW
Application Guide