
P3.15.3 PUMP ID NUMBER (ID 1500)
Use this parameter to set the ID number of the drive. This parameter is used only in the
Multifollower and Multimaster modes.
Each drive in the Multi-pump system must have a unique sequence (ID) number, always start
from 1.
Pump number 1 is always the primary master of the Multi-pump system. Drive number 1
controls the process and the PID controller. The PID feedback and the PID setpoint signals
must be connected to the drive number 1.
If the drive number 1 is not available in the system, there is a power-down of the drive, for
example, the next drive starts to operate as a secondary master of the Multi-pump system.
NOTE!
The communication between the drives is not correct, if:
•
the Pump ID numbers are not in a numerical order (start from 1), or
•
2 drives have the same ID number.
P3.15.4 START AND FEEDBACK SIGNALS (ID 1782)
Use this parameter to select the signals that are connected to the drive.
0 = The start and the PID feedback signals not connected to the drive in question
1 = Only the start signals connected to the drive in question
2 = The start and the PID feedback signals connected to the drive in question
NOTE!
The operation mode (master or slave) in the Multi-pump system is specified by this
parameter. The drives that have the start command and the PID feedback signals
connected, can operate as the master drive in the Multi-pump system. If there are
many drives in the Multi-pump system that have all the signals connected, the drive
with the lowest Pump ID Number (P3.15.3) starts to operate as the master.
10.16.3 INTERLOCKS
The interlocks tell the Multi-pump system that a motor is not available. This can occur when
the motor is removed from the system for maintenance or bypassed for manual control.
P3.15.5 PUMP INTERLOCKING (ID 1032)
Use this parameter to enable or disable the interlocks. Interlock signal tells to the Multi-
pump system if the motor is available or not. Interlock signals are given with DI signals.
To use the interlocks, enable the parameter P3.15.2. Select the status for each motor with a
digital input (the parameters from P3.5.1.34 to P3.5.1.39). If the value of the input is CLOSED,
that is, active, the Multi-pump logic connects the motor to the Multi-pump system.
VACON · 328
PARAMETER DESCRIPTIONS
10
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