Toshiba TOSVERT VF-FS1 Series User Manual

E6581373

- 6 -

Service LED indicates the node condition.

1

2

3

4

5

6

1

3

4

5

2

LED OFF

LED ON

Power
ON

Time (second)

Continues to be OFF

Continues to be ON

Momentarily OFF then continues to be ON

Repeats ON and OFF

Repeats ON and OFF

Continues to be OFF

No

Phenomenon

Problem & Solutions

1

Although the inverter is turned
on, LED remains OFF.

2

LED continues to be ON after
the inverter is turned on.

Check the connection between the inverter and the
L

ON

W

ORKS

 option unit. If abnormality is not found after

checking, it needs to be repaired.

3

LED is ON then OFF when
the inverter is turned on, and
it continues to be ON.

4

LED flashes every 0.5 second.

Internal application program is abnormal.
If the same indication appears after resetting the power, it
needs to be repaired.

5

LED flashes every 1 second.

This is a normal action of the "Unconfigured" device. If the
device is not "Unconfigured", Internal application program
is broken. It needs to be repaired.

6

LED momentarily turns ON
then continues to be OFF.

When the program is in the condition of "Configures"
status, LED momentarily turns ON when the inverter is
turned on. Then the LED continues to be OFF for some
seconds. The node indicates "Configured" status that
means the normal condition.

-

Flicker of LED
(Approximately 10Hz to 30Hz)

CPU is abnormal. It needs to be repaired.

-

LED turns ON while holding
down service switch.

This is normal action while holding down service switch.

The phone numbers for a service call are listed on the back cover of the inverter instruction manual or
on its catalog.