Communication stops during operation – Toshiba TOSVERT VF-S15 series option unit Function E6581830 User Manual

Page 51

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E658130

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3. Communication stops during operation

▪ Check that the CC-Link units and the CC-Link dedicated cable are connected properly.

(Check for contact fault, break in the cable, etc.)

▪ Check that the PLC program is executed properly.

▪ Check that data communication has not stopped due to an instantaneous power failure, etc.

LED Status

CCL003Z

Master

Station

1 Station

2 Station

3

Cause Corrective

Action

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

L.ERR

L.ERR

L.ERR

The station numbers of
station 1 and 3 are
duplicated.

After correcting the
repeated station
numbers of the inverters,
switch power on again.

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

L.ERR

L.ERR

L.ERR

The baud rate setting of
station 2 is different
from master unit.

After correcting the Baud
rate setting, switch
power on again.

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

TIME○

LINE○

or

TIME●

LINE○

L.ERR

L.ERR

L.ERR

The setting data of
station 3 was changed
during normal
operation.

After returning the setting
switch to the correct
position, power on the
inverter again.

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

L.ERR

L.ERR

L.ERR

Station 2 is affected by
noise. (L.RUN may put
out the light.)

Securely connection FG
of each inverter and
master to ground.

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

L.ERR

L.ERR

L.ERR

the communication
cable between the
inverters of stations 2
and 3 are affected by
noise. (L.RUN may put
out the light.)

Check that the
communication cable is
connected to SLD.
Also wire it as far away
as possible from the
power lines.(200mm or
more)

L.RUN

L.RUN

L.RUN

SD

SD

SD

RD

RD

RD

TIME●

LINE●

or

TIME○

LINE●

L.ERR

L.ERR

L.ERR

Terminal resistors are
left un-connected.
(L.RUN may put out
the light.)

Check that the terminal
resistors are connected.

:

On,

○:

OFF, ◎:

Flicker,

*:

Any of on, flicker or off.

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