How To Check The Error Using The Leds - Toshiba TOSVERT VF-S15 series Function Manual

7.3.

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 (CCL003Z) of the inverter.
1. When One Inverter Is Connected
The following example indicates the causes of faults which may be judged from the LED status
of the CC-Link unit (CCL003Z) of the inverter under the condition that the SW, M/S and PRM
LEDs of the master unit are off (the master unit setting is correct) in the system configuration
where one inverter is connected.
LED Status
L.RUN SD RD
● ● ●
● ● ●
● ○ ●
● ○ ●
● ○ ○
○ ● ●
○ ○ ●
○ ○ ●
○ ○ ○
P
S
CPU
Cause
L.ERR
Normal communication is
made but CRC error has
occurred due to noise.
◎
Baud rate or station number
was changed during
operation.
Normal communication
○
Cannot answer due to CRC
error of receive data.
◎
Data sent to the host station
does not reach destination.
○
Hardware fault
(There is a possibility of the
○ instability of the
communication by the
disconnection.)
Polling response is made but
refresh receive is in CRC
◎
error.
Data sent to the host station
is in CRC error.
◎
There is no data sent to the
host station, or data sent to
○
the host station cannot be
received due to noise.
Cannot receive data due to
break in the cable, etc.
○ WDT error occurrence
(hardware fault), power off,
power supply failure
On,
●: ○:OFF, ◎:
- 48 -
Master
Station
1
Unit
inverter
Corrective Action
Check that the communication cable is
connected to SLD.
Also wire it as far away as possible from
the power lines.(200mm or more)
After correcting the baud rate and/ir
station number setting, switch power on
again.
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 the network transmission setting
and the sequence program on the PLC
side.
Check for contact fault, break in the cable,
etc.
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 communication cable is
connected to SLD.
Also wire it as far away as possible from
the power lines.(200mm or more)
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 for contact fault, break in the cable,
etc.
Check that CCL003Z is fitted properly.
Flicker, Any of on, flicker or off.
＊:
E658130
PS:
Power
supply
-