Mitsubishi Electric FR-F800 Series Instruction Manual page 206

5.4.12 Using a power supply exceeding 480 VAC
To input a voltage between 480 VAC and 500 VAC to the 400 V class inverter, change the voltage protection level.
Pr.
977 Input voltage mode
E302 selection
• To use a voltage between 480 VAC and 500 VAC, set Pr.977 Input voltage mode selection = "1". The setting is applied
after a reset.
• Setting Pr.977 = "1" changes the voltage protection level to the one for the 500 V class.
• The increased magnetic excitation deceleration operation level is 740 V. Use Pr.660 Increased magnetic excitation
deceleration operation selection to select the increased magnetic excitation deceleration.)
NOTE
• To check availability of stand-alone options when the input voltage is between 480 and 500 VAC, refer to the Instruction
Manual or catalog of each option for details of the ratings.
• Changing the Pr.977 setting does not affect the voltage level to activate the regenerative overvoltage trip (E.OV1 to E.OV3).
• Changing the Pr.977 setting does not affect the voltage level set in Pr.883 Regeneration avoidance operation level.
• The setting of Pr.977 is invalid for the 200 V class inverter.
Parameters referred to
Pr.660 Increased magnetic excitation deceleration operation
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Name Initial value
0
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Setting
range
0 400 V class voltage protection level
1 500 V class voltage protection level
2 For manufacturer setting. Do not set.
selectionpage 574
Description
5. PARAMETERS
5.4 (E) Environment setting parameters
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