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Mitsubishi Electric FR-E520 Instruction Manual Page 129

Transistorized inverter.
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<Setting>
Pr. 240 Setting
0
1
(when Pr. 72="0 to 5")
10 (Note)
11 (Note)
Note: Note the following when Pr. 240="10 or 11"
1. When Pr. 72 "PWM frequency selection" = "2 or more", PWM carrier
frequency is 1kHz.
2. Output voltage at the rated frequency decreases by 4V maximum.
3. If you copied parameters to the previous version inverter (Pr. 240="10 or 11"
is not available), set Pr. 240 again.
4. For the 400V class, use an insulation-enhanced motor. (Using other motors
may result in insulation deterioration of motors due to surge voltage
independently of the Pr. 240 setting.)
5. Values exceeding 120Hz can not be written to Pr. 1 (Pr. 18) when Pr.
240="10 or 11". Similarly, "10 or 11" can not be written to Pr. 240 when the
value set in Pr. 1 (Pr. 18) exceeds 120Hz.
Soft-PWM
Long wiring mode
invalid
valid
invalid
valid
119
PARAMETERS
Description
invalid
invalid
valid
Setting can be made
only for the 400V
valid
class
Remarks
4

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