
Step
Action
7
Set the ID number of the pump.
•
Go to parameter P1.35.15 (Quick Setup Parameter Menu).
•
The same parameter is in the menu Parameters -> Group 3.15 -> P3.15.3.
•
Each drive in the Multi-pump system must have an ID number that no other drive has for
the correct communication between drives. The ID numbers must be in a numerical
order and start from number 1.
•
The drives, which have a PID feedback signal connected, have the smallest ID numbers
(for example, ID 1 and ID 2). This gives the shortest possible start-up delay when you do
a power-up of the system.
8
Configure the Interlock function.
•
Go to parameter P1.35.17 (Quick Setup Parameter Menu).
•
The same parameter is in menu Parameters -> Group 3.15 -> P3.15.5.
•
By default, the interlock function is disabled.
•
Select Enabled, if the interlock signal is connected to the digital input DI5 of the drive.
The interlock signal is the digital input signal that tells if this pump is available in the
Multi-pump system.
•
Select Not Used, if the interlock signal is not connected to the digital input DI5 of the
drive. The system sees that all the pumps in the Multi-pump system are available.
9
Examine the source of the PID setpoint signal.
•
By default, the PID setpoint value comes from parameter P1.35.9 Keypad Setpoint 1.
•
If it is necessary, you can change the source of the PID setpoint signal with parameter
P1.35.8. You can select the analogue input or Fieldbus Process Data In 1-8, for example.
The basic settings of the Multi-pump system are completed. You can use the check list also
when you configure the next drives in the system.
10.16.2 SYSTEM CONFIGURATION
The Multi-pump function has 2 different configurations. The configutation is specified by the
quantity of drives in the system.
SINGLE DRIVE CONFIGURATION
The Single drive mode controls a system of 1 variable speed pump and the maximum of 7
auxiliary pumps. The internal PID controller of the drive controls the speed of 1 pump and
gives control signals with relay outputs to start or stop the auxiliary pumps. External
contactors are necessary for the switch of the auxiliary pumps to the mains.
PARAMETER DESCRIPTIONS
VACON · 323
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
10