HC2.book 136 ページ ２０１２年１１月１９日　月曜日　午前１０時５２分

Check first when you have a trouble

4.7 Check first when you have a trouble

Trouble

Converter does not operate properly.

Checkpoint

Check the connection.

 Check if the wiring is performed correctly.

 Check if appropriate power supply voltage is applied.

 Check if the phase sequence is correct.

POWER lamp is unlit.

Charge lamp is unlit.

Reactor heats up abnormally.

Unable to run the inverter.

Breaker trips.

If the phase sequence is correct, check for the short circuit across terminals SOF and SD and across terminals RES and SD.

Check the connection.

 Check if the connection is performed correctly.

 Check if the main circuit terminals R/L1, S/L2 and T/L3 are wired correctly.

 Check for any damage to the inrush current limit resistor

Check the connection.

 Check if the connection is performed correctly.

 Check if the main circuit terminals R4/L14, S4/L24 and T4/L34 are wired correctly.

Check the connection.

 Check if the order of the reactor 1 and the reactor 2 is correct.

Check the setting.

 Check if the parameter setting of the inverter is correct. (Parameter setting method differs by the inviter series. For the parameter setting method, refer to page

55 .)

Abnormal acoustic noise is generated from the reactor.

Check if the phase sequence is correct.

Check the connection.

 Check if the wiring is performed correctly.

 Check if appropriate power supply voltage is applied.

 Check if the phase sequence is correct.

Check the above points, identify the cause of the trip and remove it before turning ON the breaker power .

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HC2.book 137 ページ ２０１２年１１月１９日　月曜日　午前１０時５２分

5

MAINTENANCE

AND INSPECTION

This chapter provides the "MAINTENANCE AND

INSPECTION" of this product.

Always read the instructions before using the equipment.

5.1

Inspection items............................................................................ 138

5.2

Measurement of main circuit voltages, currents and powers .. 145

5

137

6

1

2

3

4