Mitsubishi Electric FR-CC2-P Instruction Manual page 152

6.6.5
Inverter cannot be operated
Checkpoints
Terminals RDA and SE of the converter unit are
Control
not connected to terminals MRS (X10 signal) and
Circuit
SD of the inverter respectively.
PARAMETER
Inverter parameter settings are incorrect.
6.6.6
Unable to write parameter setting
Checkpoints
Parameter is disabled by the Pr.77 Parameter
Parameter
write selection setting.
setting
Key lock mode is enabled by the Pr.161 Key lock
operation selection setting.
6.6.7
Breaker trips
Checkpoints
Wiring or installation is improper.
Main circuit
Appropriate power supply voltage is not applied.
6.6.8
Converter unit generates abnormal noise
Checkpoints
Fan cover was not correctly installed when a
fan
cooling fan was replaced.
Cause
Check for the wiring.
Check for the inverter parameter settings.
Cause
Check the Pr.77 setting.
Check the Pr.161 setting.
Cause
Check for the wiring and the installation.
Check that the power supply voltage is applied.
Cause
Install a fan cover correctly.
Check first when you have trouble
Countermeasure
Countermeasure
Countermeasure
Countermeasure
PROTECTIVE FUNCTIONS
Refer to
page
27
Refer to the
Instruction
Manual
(Detailed)
of the
inverter.
Refer to
page
90
90
Refer to
page
27
—
Refer to
page
159
6
151