Mitsubishi Electric FR-F800 Series Instruction Manual page 96

 EMI measure example
NOTE
• For compliance with the EU EMC Directive, refer to the Instruction Manual (Startup).
3.1.3
This inverter is equipped with a built-in EMC filter (capacitive filter) and a common mode choke.
These are effective in reducing air-propagated noise on the input side of the inverter.
To enable the EMC filter, set 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-F820-02330(55K) or lower and the FR-F840-01160(55K) or lower
inverter, is always enabled regardless of the EMC filter ON/OFF connector setting.
FR-F820-00046(0.75K),
00077(1.5K)
EMC filter OFF
FR-F820-00046(0.75K),
00077(1.5K)
 How to enable or disable the filter
 For FR-F820-00105(2.2K) or higher and FR-F840-00023(0.75K) 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 tester
or the like.
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Enclosure
Inverter
power
supply
Separate inverter and
power line by more than
30 cm (at least 10 cm)
from sensor circuit.
Control
power
supply
Do not earth (ground)
enclosure directly.
Do not earth (ground) control cable.
Built-in EMC filter
FR-F820-00105(2.2K) to 00250(5.5K)
FR-F840-00126(5.5K) or lower
EMC filter ON EMC filter OFF
FR-F820-00105(2.2K) FR-F820-00340(7.5K)
to 00250(5.5K) to 00630(15K)
FR-F840-00023(0.75K) FR-F840-00170(7.5K)
to 00126(5.5K) to 00380(18.5K)
search engine
Decrease carrier frequency.
FR-
EMC
Inverter
BLF
filter
Use a twisted pair shielded cable.
Power
supply for
sensor
Do not earth (ground) shield but
connect it to signal common cable.
FR-F820-00340(7.5K) to 00630(15K)
FR-F840-00170(7.5K) to 00380(18.5K)
EMC filter ON EMC filter OFF
FR-F820-00770(18.5K)
to 01250(30K)
FR-F840-00470(22K),
00620(30K)
3.1 Electro-magnetic interference (EMI) and leakage currents
Install filter (FR-BLF
or FR-BSF01) on
inverter output side.
M Motor
Use 4-core cable for motor
power cable and use one cable
as earth (ground) cable.
Sensor
FR-F820-00770(18.5K) or higher
FR-F840-00470(22K) or higher
EMC filter ON EMC filter OFF
FR-F820-01540(37K) or higher
FR-F840-00770(37K) or higher
3. PRECAUTIONS FOR USE OF THE INVERTER
1
2
3
4
5
6
7
8
9
10
EMC filter ON
EMC filter
ON/OFF
connector
95