Mitsubishi Electric FREQROL HC Instruction Manual page 31

8) Wiring the external box and high power factor converter
High power factor
converter
External box
MC1
MC1
MC2
MC2
Cable size: 0.75 to 2mm
Note:Terminals MC1, MC2 of the high power factor converter provide control signals for the inrush current
control circuit within the external box. Always connect these terminals with the external box. Otherwise,
the external box's internal circuit will be damaged.
Notes for grounding
• The high power factor converter leaks current. To prevent an electric shock, always
ground the converter before starting operation (200V class: class D grounding,
grounding resistance 100
Ω
resistance 10 maximum).
• To ground the high power factor converter, use the exclusive ground terminal. (Do
not use the screws in the casing, chassis, etc.)
• Use the thickest and shortest possible ground
cable that is equal to, or larger than the size
indicated in the right table. Ground the high
power factor converter at a point nearest to itself
and the inverter.
2
Resistor
Ω
maximum, 400V class: class C grounding, grounding
- 22 -
Power supply
FR-HCL01
Transformer
Capacitor
S2
R2 T2
Magnetic contactor Resistor
R3 S3 T3
Terminal
block
MC1.MC2
FR-HCL02
Ground cable size
High power factor
converter capacity
200V class
7.5kW 5.5
15kW 14
30kW 22
55kW 38
High power factor converter
Screw size
Control circuit
M4
terminal block
R1 S1
R S T R4 S4 T4
N P
Overall wiring distance:
Within 10m
2
(Unit:mm )
Grounding
400V class
3.5
8
14
22