Cable

Accessory for signal   transmission

Breaker

Device for electric   shock prevention and protection against short-to-ground that may cause   current leakage and fire. Select residual-current circuit breakers (RCCBs) that   are applicable to VFDs and can restrict high-order harmonics, and of which   the rated sensitive current for one VFD is larger than 30 mA.

Input reactor

Accessories used to   improve the current adjustment coefficient on the input side of the VFD, and   thus restrict high-order harmonic currents.

The VFD models of 132G/160P and higher can be directly connected to external   DC reactors.

DC reactor

Input filter

Accessory that   restricts the electromagnetic interference generated by the VFD and   transmitted to the public grid through the power cable. Try to install the   input filter near the input terminal side of the VFD.

Braking unit or braking resistor

Accessories used to   consume the regenerative energy of the motor to reduce the DEC time.

The VFD models of 037G/045P and lower need only to be configured with braking   resistors, those of 132G/160P and higher also need to be configured with braking units, and those of   045G/055P-055G/075P can be configured with optional built-in braking units.

Output filter

Accessory used to   restrict interference generated in the wiring area on the output side of the   VFD. Try to install the output filter near the output terminal side of the   VFD.

Output reactor

Accessory used to lengthen   the valid transmission distance of the VFD, which effectively restrict the   transient high voltage generated during the switch-on and switch-off of the   IGBT module of the VFD.