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Operation; Pre-operation Checks - Mitsubishi Electric FR-E520 Instruction Manual

Transistorized inverter.
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Pre-operation checks

Before starting operation, check the following:
! ! ! ! Safety
Perform test operation after making sure that safety is ensured if the machine should
become out of control.
! ! ! ! Machine
Make sure that the machine is free of damage.
! ! ! ! Parameters
Set the parameter values to match the operating machine (system) environment.
! ! ! ! Test operation
Perform test operation and make sure that the machine operates safely under light
load at a low frequency. After that, start operation.
Since the Pr. 240 "Soft-PWM setting" value is factory-set to select Soft-PWM control,
the tone is different from that in the conventional non-low acoustic noise mode, this is
not a fault.


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