Fuji Electric FRENIC-VG Series - Basic Connection Diagrams; Connection Diagram of Multiwinding Motor Control System

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6.6.5 Basic connection diagrams
6.6.5.1 Connection diagram of multiwinding motor control system
・ For safety, design the external circuit so that all inverter units should coast to stop when an alarm occurs (30x
operation).
A connection example is shown below.
Figure 6.6.4
Special notices
(1) For safety, make sure that all inverter units
should coast to stop when an alarm occurs
(30x operation). Coast to stop command
should be input to the contact BX.
(2) Make sure that FWD and REV are available
only when all inverter units are ready for
operation (RDY). This example shows an
example where the operation ready signal is
assigned to the relay output.
(3) The reset command (RST) to the master
inverter unit can cancel alarms of all inverter
units.
Figure 6.6.5
Note
(1) The DC reactor (DCR) is optional for 55 kW or lower and included for 75 kW or higher.
(2) Braking resistor (DBR) is optional.
FTX VFX VRX
FWD REV
マスタ
RDY30
30A
30 30
30C
マスタ スレーブ1 スレーブn
30A30A
30C30C
RYA
RYC
RYA
RYC
RDY
スレーブn
Slave 1 Slave n MasterMaster
Slave n