Leakage Current Of The Emc Filter - Fuji Electric frenic-hvac Instruction Manual

Inverters of 11 to 37 kW: When shielded wires are not used for the motor cable, remove the motor
cable clamps to prevent the cable covering from getting damaged, which makes the machinery or
equipment incompliant with the EMC standards. Removing a ferrite core from the input lines in
wiring does not affect inverter running.
4) For connection to inverter's control terminals and for connection of the RS-485 communication signal cable,
use shielded wires. As with the motor, clamp the shields firmly to the specified point or the grounded metal
plate inside the inverter.
Clamp for control
signal lines
Figure 8.2 Wiring to Control Circuit Terminals for Inverters of 30/37 kW

8.3.3 Leakage current of the EMC filter

This product uses grounding capacitors for noise suppression which increase the leakage current. Check
whether there is no problem with electrical systems.
Input power Inverter type
̈
FRN0.75AR1 -4¸
̈
FRN1.5AR1 -4¸
̈
FRN2.2AR1 -4¸
̈
Three-phase
FRN3.7AR1 -4¸
400 V
̈
FRN4.0AR1 -4¸
̈
FRN5.5AR1 -4¸
̈
FRN7.5AR1 -4¸
* Calculated based on these measuring conditions: 400 V, 50 Hz, neutral grounding in Y-connection, interphase voltage
unbalance ratio 2%.
Table 8.1 Leakage Current of EMC Filter
Leakage current
Input power
(mA)
Three-phase
37
400 V
8-2
Leakage current
Inverter type
(mA)
̈
FRN11AR1 -4¸
̈
FRN15AR1 -4¸
̈
95
FRN18.5AR1 -4¸
̈
FRN22AR1 -4¸
̈
FRN30AR1 -4¸
̈
FRN37AR1 -4¸ 78