Toshiba TOSVERT VF-S15 series Function Manual page 51

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
Master
Station 1
L.RUN
○
SD
＊
RD
●
L.ERR
○
TIME○
L.RUN
●
LINE○
SD
●
or
RD
●
TIME●
L.ERR
○
LINE○
L.RUN
●
SD
●
RD ●
L.ERR
○
L.RUN
●
SD
●
RD
●
L.ERR
○
L.RUN
●
TIME●
SD
●
LINE●
RD
●
or
TIME○
L.ERR
○
LINE●
L.RUN
●
SD
●
RD
●
L.ERR
○
CCL003Z
Station 2 Station 3
L.RUN ● L.RUN
SD ● SD
RD ● RD
L.ERR ○ L.ERR
L.RUN ○ L.RUN
SD ○ SD
RD ● RD
L.ERR ○ L.ERR
L.RUN ● L.RUN
SD ● SD
RD ● RD
L.ERR ○ L.ERR
L.RUN ● L.RUN
SD ● SD
RD ● RD
L.ERR ● L.ERR
L.RUN ● L.RUN
SD ● SD
RD ● RD
L.ERR ● L.ERR
L.RUN ● L.RUN
SD ● SD
RD ● RD
L.ERR ○ L.ERR
On,
●: ○:OFF, ◎:
- 50E -
Cause
The station numbers of
○
station 1 and 3 are
＊
duplicated.
●
○
The baud rate setting of
●
station 2 is different
●
from master unit.
●
○
The setting data of
●
station 3 was changed
●
during normal
●
operation.
◎
Station 2 is affected by
●
noise. (L.RUN may put
●
out the light.)
●
○
the communication
●
cable between the
●
inverters of stations 2
and 3 are affected by
●
noise. (L.RUN may put
out the light.)
●
●
Terminal resistors are
●
left un-connected.
●
(L.RUN may put out
●
the light.)
Flicker, Any of on, flicker or off.
＊:
- 50 -
E658130
Corrective Action
After correcting the
repeated station
numbers of the inverters,
switch power on again.
After correcting the Baud
rate setting, switch
power on again.
After returning the setting
switch to the correct
position, power on the
inverter again.
Securely connection FG
of each inverter and
master to ground.
Check that the
communication cable is
connected to SLD.
Also wire it as far away
as possible from the
power lines.(200mm or
more)
Check that the terminal
resistors are connected.