Reactors; Filter - TECHTOP TD20 Series Product Manual

TD20 Series VFD
Power Conversion Model Series
TD20-2R2G-4
Integral solid-state short circuit protection does not provide branch circuit protection. Branch circuit
protection must be provided in accordance with the National Electrical Code and any additional local
codes.
C.5 Reactors
High current in the input power circuit may cause damage to the rectifying components. It is appropriate
to use AC reactor in the input side for the avoidance of high-voltage input of the power supply and
improvement of the power factors.
If the distance between the VFD and the motor is longer than 50m, frequent overcurrent protection may
occur to the VFD because of high leakage current caused by parasitic capacitance effects from the long
cables to the ground. In order to avoid the damage of the motor insulation, it is necessary to add reactor
compensation.
C.6 Filters
C.6.1 C3 Filter type instruction
C3 filers are optional for TD20 series VFDs.
The input interference filter can decrease the interference of the VFD to the surrounding equipments.
Output interference filter can decrease the radio noise cause by the cables between the VFD and the
motor and the leakage current of the conducting wires.
Note:
The input EMI meet the requirement of C3 after adding input filters.
Above options are external, the customer should indicate when purchasing.
Do not connect C3 filters in IT power system.
Fuse Class Type
Input reactor
-124-
Appendix C Peripheral Options and Parts
CC
U V
W
X Y Z
Output reactor
Fuse Current Rating
20 A/ 600 V
U
X