151
6. PROTECTIVE FUNCTIONS
6.6 Check first when you have a trouble
1
2
3
4
5
6
7
8
9
10
6.6.5
The inverter does not run.
6.6.6
Unable to write parameter setting
6.6.7
A breaker trips.
6.6.8
The converter unit generates abnormal noise
Check
point
Possible cause
Countermeasure
Refer to
page
Control
circuit
The terminals RDA and SE of the
converter unit are not connected to the
terminals MRS (X10 signal) and SD of
the inverter respectively.
Check for secure wiring and installation.
Parameter
Inverter parameter settings are incorrect. Check for the inverter parameter settings.
Refer to the
Instruction
Manual
(Detailed) of
the inverter.
Check
point
Possible cause
Countermeasure
Refer to
page
Parameter
setting
Parameter write is disabled by the
Pr.77
Parameter write selection
setting.
Check the
Pr.77
setting.
The key lock mode is enabled by the
Pr.161
Key lock operation selection
setting.
Check the
Pr.161
setting.
Check
point
Possible cause
Countermeasure
Refer to
page
Main
circuit
The wiring or installation is inadequate.
Check for secure wiring and installation.
An appropriate power supply voltage is
not applied.
Check if an appropriate power supply voltage is applied.
—
Check
point
Possible cause
Countermeasure
Refer to
page
Fan
The fan cover was not correctly installed
when a cooling fan was replaced.
Install the fan cover correctly.
Содержание FR-CC2-N Series
Страница 61: ...60 3 PRECAUTIONS FOR USE OF THE CONVERTER UNIT 3 4 Checklist before starting operation MEMO ...
Страница 137: ...136 5 PARAMETERS 5 10 Checking parameters changed from their initial values initial value change list MEMO ...
Страница 153: ...152 6 PROTECTIVE FUNCTIONS 6 6 Check first when you have a trouble MEMO ...
Страница 165: ...164 7 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 7 2 Measurement of main circuit voltages currents and powers MEMO ...
Страница 171: ...170 8 SPECIFICATIONS 8 3 Outline dimension drawings MEMO ...