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8 Troubleshooting and Maintenance
E3NW-ECT EtherCAT Digital Sensor Communication Unit Operation Manual (E429)
8-1 T
ro
u
b
lesho
o
ting
8
8-1-
1 Err
ors that Can
be Checked with S
ta
tus In
dicator a
nd
Actions to T
ake
* Due to the EtherCAT specification, a communication timeout does not occur with those Slave Units that only
handle input data.
Synchronization Errors
On
−
SF
−
Safe-
Operational
state
It is commanded
from the EtherCAT
Master Unit to shift
to the
Safe-Operational
state.
If the trouble occurred
during operating the
system, check the state
of the connected
EtherCAT Master Unit.
On
−
B
−
Pre-
Operational
state
It is commanded
from the EtherCAT
Master Unit to shift
to the
Pre-Operational
state.
On
−
Off
−
Init state
It is commanded
from the EtherCAT
Master Unit to shift
to the Init state.
[PWR]
indicator
[L/A IN]
[L/A OUT]
LED
[RUN]
indicator
[ERR]
indicator
Description
Actions
On
−
B
B
Synchronization
frequency (Sync0
frequency) setting error
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
•
Set the correct synchronization
frequency.
On
−
B
SF
Synchronization error (at
synchronization start)
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
•
Is the communications cable
wired correctly?
•
Is the communications cable
exposed to excessive noise?
•
Review set time of Sync Not
Received Timeout Setting
(synchronization error setting).
On
−
SF
SF
Communications
synchronization error
After checking the following items,
restart the Slave Unit according to
the specification of connected
EtherCAT Master Unit.
•
Is the communications cable
wired correctly?
•
Is the communications cable
exposed to excessive noise?
•
Review set time of
Communication Error Setting .
[PWR]
indicator
[L/A IN]
[L/A OUT]
LED
[RUN]
indicator
[ERR]
indicator
Description
Cause
Actions
Summary of Contents for E3NW-ECT
Page 1: ...E3NW ECT EtherCAT Digital Sensor Communication Unit Operation Manual E429 E1 07...
Page 3: ...E3NW ECT EtherCAT Digital Sensor Communication Unit Operation Manual Revised December 2017...
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Page 170: ...Revision 2 E3NW ECT EtherCAT Digital Sensor Communication Unit Operation Manual E429...
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