Mitsubishi Electric FR-A800 Series Instruction Manual page 122

The input side common mode choke, which is built in the FR-A820-03160(55K) or lower and the FR-A840-01800(55K) or lower
inverter, is always enabled regardless of the EMC filter ON/OFF connector setting.
FR-A820-00046(0.4K),
00077(0.75K)
EMC filter OFF
FR-A820-00046(0.4K),
00077(0.75K)
 How to enable or disable the filter
 For FR-A820-00105(1.5K) or higher and FR-A840-00023(0.4K) or higher
• 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 digital
multimeter or the like.
• 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.)
 For FR-A820-00077(0.75K) or lower
• 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 digital
multimeter or the like.
• Remove the control circuit terminal block. (Refer to
• Connect the shorting wire to the corresponding terminal to enable or disable the filter. Connect the wire to the terminal in
the same way as general wiring of the control circuit terminal block. (Refer to
• After switching, reinstall the control circuit terminal block as it was.
NOTE
• Fit the connector or shorting wire to either ON or OFF position.
• Enabling (turning ON) the EMC filter increases leakage current. (Refer to
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FR-A820-00105(1.5K) to 00250(3.7K)
FR-A840-00126(3.7K) or lower
EMC filter ON EMC filter OFF
FR-A820-00105(1.5K) FR-A820-00340(5.5K)
to 00250(3.7K) to 00630(11K)
FR-A840-00023(0.4K) FR-A840-00170(5.5K)
to 00126(3.7K) to 00380(15K)
EMC filter Disengage connector fixing tab.
ON/OFF connector
(Side view)
search engine
FR-A820-00340(5.5K) to 00630(11K)
FR-A840-00170(5.5K) to 00380(15K)
EMC filter ON EMC filter OFF
FR-A820-00770(15K)
to 01250(22K)
FR-A840-00470(18.5K),
00620(22K)
With tab disengaged,
pull up the connector straight.
page 819.)
3.1 Electro-magnetic interference (EMI) and leakage currents
FR-A820-00770(15K) or higher
FR-A840-00470(18.5K) or higher
EMC filter ON EMC filter OFF
FR-A820-01540(30K) or higher
FR-A840-00770(30K) or higher
page 74.)
page 117.)
3. PRECAUTIONS FOR USE OF THE INVERTER
1
2
3
EMC filter ON
4
5
EMC filter
ON/OFF
connector
6
7
8
9
10
121