Mitsubishi FR-E 500 Instruction Manual page 57

<Example>
Note: 1. The earth leakage circuit breaker should be installed to the primary (power
supply) side of the inverter.
2. Ground fault in the secondary side of the inverter can be detected at the
running frequency of 120Hz or lower.
3. In the
becomes worse for ground faults in the inverter secondary side. Hence, the
protective grounding of the load equipment should be 10Ω or less.
4. When the breaker is installed in the secondary side of the inverter, it may be
unnecessarily operated by harmonics if the effective value is less than the
rating. In this case, do not install the breaker since the eddy current and
hysteresis loss increase and the temperature rises.
* Note the leakage current value of the noise filter installed on the inverter input
side.
Leakage current (Ig1) (mA)
Leakage current (Ign) (mA)
Leakage current (Ig2) (mA)
Motor leakage
current (Igm) (mA)
Total leakage current (mA)
Rated sensitivity current
(mA) ( ≥ Ig × 10)
× 5m
5.5mm 2
(16.40 feet)
NV Noise filter
Inverter
Ig1 Ign
connection neutral point grounded system, the sensitivity current
Progressive Super series
(Type SP, CF, SF, CP)
INSTALLATION AND WIRING
× 70m
5.5mm 2
(229.66 feet)
3φ
IM
200V 2.2kW (3HP)
Ig2 Igm
5m (16.40 feet )
33 ×
1000m (3280.80 feet)
0 (without noise filter)
70m (229.66 feet )
33 ×
1000m (3280.80 feet)
2.66
30
44
Conventional NV
(Type CA, CS, SS)
= 0.17
= 2.31
0.18
7.64
100