Emc Filters - Mitsubishi Electric FR-A800 Series Beginner's Manual

Connections
3.3.3

EMC filters

EMC filters (mains RFI suppression filters) significantly reduce interference. They are installed be-
tween the mains power supply and the frequency inverter.
The standard models and the IP55 compatible models of the FR-A800 inverter series are equipped
with a built-in EMC filter. For the FR-A842 types of inverters (separate converter types) the converter
unit is equipped with a built-in EMC filter. Those filters are effective in reducing conducted noise on
the input side of the inverter. To enable the EMC filter, fit the EMC filter ON/OFF connector to the ON
position.
FR-A820-00046(0.4K),
00077(0.75K)
EMC filter OFF
FR-A820-00046(0.4K),
00077(0.75K)
FR-A846-00023(0.4K) to 00170(5.5K)
EMC filter OFF
The connector must always be installed, either in the ON position or in the OFF position.
WARNING:
P
To avoid serious shock hazard always turn off the inverter power supply before removing the
front cover to activate or deactivate the EMC filter.
NOTE Under some conditions, it is necessary, to install an additional AC-reactor or noise filter on the
input side of the inverter/converter unit. Please refer to the instruction manual of your inverter.
Frequency Inverters - Beginner's Guide
FR-A820-00105(1.5K) to 00250(3.7K)
FR-A840-00126(3.7K) or lower
EMC filter ON EMC filter OFF EMC filter ON
FR-A820-00046(0.4K) to FR-A820-00340(5.5K) to
00250(3.7K) 00630(11K)
FR-A840-00023(0.4K) to FR-A840-00170(5.5K) to
00126(3.7K) 00380(15K)
EMC filter ON
FR-A820-00340(5.5K) to 00630(11K)
FR-A840-00170(5.5K) to 00380(15K)
EMC filter OFF EMC filter ON
FR-A820-00770(15K)
to 01250(22K)
FR-A840-00470(18.5K),
00620(22K)
FR-A846-00250(7.5K) to 00470(18.5K)
OFF ON OFF ON
EMC filter OFF EMC filter ON
EMC filter
ON/OFF
connector
EM-compatible installation
FR-A820-00770(15K) or higher
FR-A840-00470(18.5K) or higher
EMC filter OFF EMC filter ON
FR-A820-01540(30K) or higher
FR-A840-00770(30K) or higher
EMC filter
ON/OFF
connector
3 - 9