Chapter 3. Machine Adjustment Procedure | VFD-VJ
3-20
Slave setting
Pr.01-01=1
Source of operation command
Setting value
of Pr. 01-01
0: Operation by using the digital keypad
1: Operation by using the external terminals. The Stop button on the
keypad is disabled.
2: Communication using RS-485. The Stop button on the keypad is
disabled
Set Pr.01-01=2
Source of operation command
Setting value
of Pr.01-01
0: Operation by using the digital keypad
1: Operation by using the external terminals. The Stop button on the
keypad is disabled.
2: Communication using RS-485. The Stop button on the keypad is
disabled
Set Pr.03-15 = 1
Source of Frequency Command
Setting value
of Pr. 03-15
0: Digital Operation Panel
1: RS485 Communication
2~5: reserved
6: CANopen
Shut down the power and then supply the power again
Set an arbitrary value of the frequency command at the Master to check if the Slave has the
same value of the frequency command
Set 10rpm at the Master and then press RUN to see if the Slave is also running. If not, check
the wiring or the parameter setting for any problem
Set Slave Pr.03-13 = 2
Confluence Master/Slave Selection
Setting value
of Pr.03-13
0: No function
1: Master 1
2: Slave/Master 2
3: Slave/Master 3
Pr.03-21 can be set at the Slave to decide if the Salve is performing the reversed operation for
depressurization.
NOTE: If it is required to reverse the operation for depressurization at the Slave, it is necessary
to make sure that the pump outlet port is not installed with a check valve and Pr.03-16 should
be set as 500%
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