How To Check The Error Using The Leds - Toshiba TOSVERT VF-AS1 Function Manual

6.3. How to check the error using the LEDs

The following example explains the causes of fault which may be judged from the LED
status of the CC-Link unit (CCL001Z) of the inverter.
(1) When two or more inverters are connected
The following example explains the causes and corrective actions for fault which may be
judged from the LED status of the CC-Link units (CCL001Z) of the inverters under the
condition that the SW, M/S and PRM LEDs of the master unit are off (the master unit
setting is proper) in the system configuration shown below:
Power
supply
LED Status
Master
unit
Station 1
L.RUN ●
SD
●
TIME○
RD ●
LINE○
L.ERR ○
or
L.RUN ○
TIME●
SD
○
LINE○
RD ○
L.ERR ○
L.RUN ●
SD
●
RD ●
L.ERR ○
TIME●
LINE●
L.RUN ○
or
S D *
TIME○ R D *
L.ERR ○
LINE●
L.RUN ○
S D *
R D *
L . E R R *
CPU Master
unit
CCL001Z
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 ○
S D * S D *
R D * R D *
L.ERR ○ L.ERR ○
L.RUN ○ L.RUN ○
S D * S D *
R D * R D *
L.ERR ○ L.ERR ○
L.RUN ○ L.RUN ○
S D * S D *
R D * R D *
L . E R R * L . E R R *
Station 1 Station 2
Inverter Inverter
Cause
Normal
Poor contact of the CCL001Z
with the inverter.
Since the L.RUN LEDs of the
CCL001Z on station 2 and later
are off, the communication cable
between the unit 1 and 2 is open
or disconnected from
terminal block.
The communication cable is
shorted.
The communication cable is
wired improperly.
●: On, ○: OFF, ◎: Flicker, *: Any of on, flicker or off.
29 −
−
E6581288①
Station 3
Inverter
Corrective Action
−
Plug the CCL001Z
securely.
Check the connector.
Referring to the LED
"on" condition, search
for an open point and
repair.
the
Among the three wires
of the communication
cable, search
shorted wire and
repair.
Check the wiring on
the inverter terminal
block and correct the
improper wiring point.
for