Electro-magnetic interference (EMI) and leakage currents
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PRECAUTIONS FOR USE OF THE INVERTER
NOTE
• For compliance with the EU EMC Directive, refer to the Instruction Manual (Startup).
3.1.3 Built-in EMC filter
This inverter is equipped with a built-in EMC filter (capacitive filter) and a common mode choke.
These filters are effective in reducing air-propagated noise on the input side of the inverter.
To enable the EMC filter, fit the EMC filter ON/OFF connector to the ON position. The FM type is initially set to "disabled"
(OFF), and the CA type to "enabled" (ON).
The input side common mode choke, which is built in the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower
inverter, is always enabled regardless of the EMC filter ON/OFF connector setting.
<How to enable or disable the filter>
• Before removing a front cover, check to make sure that the indication of the inverter operation panel is OFF, wait for at least
10 minutes after the power supply has been switched OFF, and check that there is no residual voltage using a tester or the
like.
• For FR-A820-00105(1.5K) or higher and FR-A840-00023(0.4K) or higher
- When disconnecting the connector, push the fixing tab and pull the connector straight without pulling the cable or forcibly
pulling the connector with the tab fixed.
When installing the connector, also engage the fixing tab securely.
(If it is difficult to disconnect the connector, use a pair of needle-nose pliers, etc.)
EMC filter
ON/OFF
connector
FR-A820-00105(1.5K) to 00250(3.7K)
FR-A840-00126(3.7K) or lower
FR-A820-00340(5.5K) to 00630(11K)
FR-A840-00170(5.5K) to 00380(15K)
FR-A820-00046(0.4K)
to 00250(3.7K)
FR-A840-00023(0.4K)
to 00126(3.7K)
FR-A820-00340(5.5K)
to 00630(11K)
FR-A840-00170(5.5K)
to 00380(15K)
FR-A820-00770(15K)
to 01250(22K)
FR-A840-00470(18.5K),
00620(22K)
FR-A820-00770(15K) or higher
FR-A840-00470(18.5K) or higher
FR-A820-01540(30K) or higher
FR-A840-00770(30K) or higher
EMC filter OFF EMC filter ON EMC filter OFF EMC filter ON
FILTER
OFF ON
FILTER
OFF ON
EMC filter OFF EMC filter ON
FILTER
OFF ON
FILTER
OFF ON
FILTER
FILTER
OFF
ON
FILTER
FILTER
OFF
ON
FR-A820-00046(0.4K),
00077(0.75K)
EMC filter OFF EMC filter ON
FR-A820-00046(0.4K),
00077(0.75K)
EMC filter
ON/OFF connector
(Side view)
Disengage connector fixing tab With tab disengaged,
pull up the connector straight.
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