4 Option Components
YASKAWA ELECTRIC
TOBP C730600 82B YASKAWA AC Drive Option SI-P3 Installation Manual
13
Table 5 LED Operation After Power-up Diagnostic
: On /
: Flashing /
: Off
LED
Communication
Status
Possible Cause
Solution
RUN ERR COMM BF
●
●
●
●
No power
Drive has no power.
Check all wiring to the drive, then
turn on the power.
Option is not properly
connected to the drive or is
not receiving enough power.
Shut off the drive and make sure
the option is connected properly.
Turn the power back on.
○
●
●
●
• Checking
connection with
the drive
• Waiting for data
from the master
• Option is reading the node
address or parameter
configuration.
• Waiting for initial input
data from master device.
–
●
○
●
●
Option
self-diagnostics
error
The option is damaged.
Cycle power to the drive. If the
LED status does not change,
replace the option.
●
●
●
Problem
connecting to the
drive
• Problem initializing the
drive and the option.
• Incorrect node address.
• Cycle power to the drive. If the
LED status does not change,
replace the option.
• Check the node address setting in
the drive (F6-30).
○
●
●
○
Waiting for data
from the master
device
Waiting for data from the
master device.
(Set_Parm_Message or
Chk_Cfg_Message)
• Check master network settings.
• Make sure the master device is
operating normally.
• Check the terminal resistance
settings on the data line.
• Check for problems with the data
line and connector.
• Check if the data line is
connected properly to
communication connector CN5.
○
●
●
Incorrect data or
option time out
waiting for data
The communication settings
in the master are set
incorrectly.
Check the communication settings
in the master.
○
●
○
●
Sending or
receiving data
–
–
