Switching Of Grounding Capacitor - Toshiba TOSVERT VF-AS3 Instruction Manual

5) Frame size A5
VFAS3-2220P to 2370P, VFAS3-4450PC to 4750PC
6) Frame size A6
VFAS3-2220P to 2370P, VFAS3-4450PC to 4750PC
2. 3. 4

Switching of grounding capacitor

• When using this 480V class inverter with a power supply system that is grounded in other than
the neutral point (e.g. when the power supply has delta connection with single phase ground-
ing), the grounding capacitor should not be grounded (or the capacity of the grounding capaci-
tor should not be increased).
Prohibited
Otherwise, it will result in failure or fire.
This inverter has a built-in noise filter (EMC noise filter for 480V class) and the inverter input power
supply is grounded via the capacitor. By switching this grounding capacitor, the leakage current from
the inverter can be reduced.
Grounding terminal (M12 screw)
Grounding terminal (M8 screw)
WARNING
2-39
E6582062
M12 screw
Grounding terminal (M8 screw)
Input/output
Grounding terminal (M10 screw)
2. Installation and wiring
2
3
9
10