E65821622. Installation and wiring 2-16 Grounding terminal torqueNote) 1(N • m)=8.850(lb • in)2. 3. 4 Switching of grounding capacitorThis inverter has a built-in EMC noise filter and the inverter input power supply is grounded via thecapacitor. By disconnecting this grounding capacitor, the leakage current through the inverter can bereduced. When your power supply system is IT system or grounded in the point other than the neutral,disconnect the grounding capacitor. when the grounding capacitor is disconnected, the inverter unit nolonger comply with EMC directive.It is switched by changing the position of the exclusive switching screw(s) that varies depending on thetype. For the details of the switching method, refer to [2.3.4] of E6582062.Type-Form Frame size Screw size Torque Strip length(N • m) (lb • in) (mm)VFAS3-4004PCEA1EM5 2.6 23 -VFAS3-4007PCEVFAS3-4015PCEVFAS3-4022PCEVFAS3-4037PCEVFAS3-4055PCE A2EVFAS3-4075PCEVFAS3-4110PCEA3EVFAS3-4150PCEVFAS3-4185PCEVFAS3-4220PCE M6 4.4 38.9 -VFAS3-4300PCE A4EM8 10 88.5 28VFAS3-4370PCEVFAS3-4450PCE M8 11.8 104 -VFAS3-4550PCE A5EM12 18 159 35VFAS3-4750PCEWARNINGProhibited• When using this 480V class inverter with a power supply system that is grounded in other thanthe neutral point (e.g. when the power supply has delta connection with single phase ground-ing), the grounding capacitor should not be grounded.Otherwise, it will result in failure or fire.Mandatoryaction• When using this inverter with a power supply of IT system (power supply isolated from groundor grounded through high impedance), disconnect the grounding capacitor.Otherwise, it will result in failure or fire.• Make sure to turn the power off before switching the grounding capacitor.If not, it will result in electric shock.