Mitsubishi Electric FR-A800, Instruction Manual

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Electro-magnetic interference (EMI) and leakage currents Precautions for use of the inverter
3 - 4
Inverter leakage current (with and without EMC filter)
Input power conditions: (200 V class: 220 V/60 Hz, 400 V class: 440 V/60 Hz,
power supply unbalance within 3%)
쑶
Example
쑴
Breaker designed for
harmonic and surge
suppression
Standard breaker
Leakage current Ig1 (mA) 33 ×
5 m
= 0.17
1000 m
Leakage current Ign (mA) 0 (without noise filter)
Leakage current Igi (mA)
1 (with EMC filter)
For the leakage current of the inverter, refer to the following table.
Leakage current Ig2 (mA) 33 ×
50 m
= 1.65
1000 m
Motor leakage current Igm (mA) 0.18
Total leakage current (mA) 3.00 6.66
Rated sensitivity current (mA) (
≥
Ig × 10) 30 100
Tab. 3-2: Estimation of the permanent flowing leakage current
Voltage (V)
EMC filter
ON (mA) OFF (mA)
Phase grounding
200 22 1
400 35 2
Earthed-neutral system
400 2 1
Tab. 3-3: Inverter leakage current (with and without built-in EMC filter)
3
Drive unit
M
3~
3~,
200 V,
2.2 kW
ELB
5.5 mm²
×
5 m
5.5 mm²
×
60 m
Ig1 Ign
Igi
Ig2 Igm
Noise filter