Mitsubishi Electric FREQROL HC Instruction Manual page 33

(5) Where the power supply is special (rated input voltage is exceeded) for the 400V class high
power factor converters (FR-HC-H15K, H30K, H55K, FR-HCB-H7.5K)
Change the connection of the jumper to the internal transformer according to the operating power supply
voltage. For the FR-HC-H7.5K, change the connection of the internal transformer inside the external
box.
Operating power supply voltage range vs. jumper position
Jumper Position
V1
V2
V3
Note: Change the jumper position according to the operating power supply. Otherwise the high power
factor converter will be heated and may become faulty or burn out.
Changing the jumper position
• Model: . . . . FR-HC-H15K, FR-HCB-H7.5K
Transformer terminal block
1) Remove the mounting screws of the terminal symbol cover and remove the cover.
2) This reveals the terminal block of the internal transformer. After removing the screws from the jumper in
the terminal block, reconnect the jumper in accordance with the operating voltage in the above table.
• Model: . . . . FR-HC-H30K, H55K
Jumper
Operating Power Supply Voltage
50Hz
323V(380V-15%)
to
456V(415V+10%)
342V(380V-15%)
to
484V(440V+10%)
391V(460V-15%)
to
506V(460V+10%)
Terminal symbol cover
Pull out.
Terminal cover
Transformer terminal block
60Hz
As on the left
342V(380V-10%)
506V(460V+10%)
As on the left
Jumper
1) Remove the terminal cover of the internal
transformer located under the main circuit
terminal block (R, S, T).
2) Remove the screws from the jumper in the
terminal block, and reconnect the jumper.
- 24 -
Remarks
to Factory setting
Appearance of
FR-HCB-H7.5K