Chapter 4 Description of Parameters | VFD-VJ
4-57
In a confluence system, the parameter is set as 1 for the Master and 2 for the Slave
With multi-function input terminal function 45, the confluence/diversion can be configured. For detailed
operation, please refer to Chapter 2 for wiring and Chapter 3 for tuning.
The difference between Master 2 and Master 3 is that the Master 3 can be configured as confluent with
other Slaves during confluence; however, the Master 2 can be configured for stand-alone operation.
The ration between slave’s flow and master’s flow
Control mode
VF FOCPG FOCPM
Factory setting: 100.0
Settings 0.0~6553.5 %
This parameter setting is required only for the Master but not needed for the Slave.
In a confluence system, this parameter value defines the Slave’s portion of the Master’s flow.
Example: Slave is 60L/min and Master is 40L/min, so the setting is 60/40 * 100% = 150%
For confluence of more than 2 pump, the values for the slaves must be the same. For example, if the
total flow for a three-pump system is 200L/min, where the Master is 40L/min, then the two Slaves
should be 80L/min. The setting of Pr.03-14 should be 160/40 = 400%
Source of frequency command
Control mode
VF FOCPG FOCPM
Factory setting: 0
Settings 0: Digital Keypad
1: RS485 Communication
2~5: Reserved
6: CANopen
In a confluence system, if the Slave’s frequency command is given through the RS485 communication, the
setting value should be 1.
Limit for the Slave reverse depressurization torque
Control mode
VF FOCPG FOCPM
Factory setting: 0
Settings 0~500%
Set the torque limit for the Slave’s reverse operation.
Slave’s activation level
Control mode
VF FOCPG FOCPM
Factory setting: 50
Settings 0~100%
This parameter setting is required only for the Master but not needed for the Slave.
This parameter determines the activation level for the Slave. A 100% value corresponds to the full flow of
the Master.
Reserved
Reserved
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