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(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
Changing the jumper position
• Model: . . . . FR-HC-H15K, FR-HCB-H7.5K
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
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.
Jumper Position
Operating Power Supply Voltage
Remarks
50Hz 60Hz
V1
323V(380V-15%)
to
456V(415V+10%)
As on the left
V2
342V(380V-15%)
to
484V(440V+10%)
342V(380V-10%)
to
506V(460V+10%)
Factory setting
V3
391V(460V-15%)
to
506V(460V+10%)
As on the left
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.
Transformer terminal block
Terminal symbol cover
Jumper
Pull out.
Appearance of
FR-HCB-H7.5K
Terminal cover
Jumper
Transformer terminal block