Omron DRT2 SERIES DEVICENET SLAVES - OPERATION MANUAL 04-2008 Operation Manual page 483

Troubleshooting
Model
Errors occurring in
Slaves with outputs
DRT2-OD08(-1)
DRT2-OD16(-1)
DRT2-MD16(-1)
DRT2-ROS16
DRT2-MD16S(-1)
DRT2-OD16TA(-1)
DRT2-MD16TA(-1)
DRT2-OD16ML(X)(-1)
DRT2-OD32ML(-1)
DRT2-MD32ML(-1)
DRT2-OD32B/BV(-1)
DRT2-MD32B/BV(-1)
DRT2-OD16SL/SLH(-1)
DRT2-OD32SL/SLH(-1)
DRT2-MD32SL/SLH(-1)
DRT2-OD04CL(-1)
DRT2-OD08C(-1)
DRT2-OD08CL(-1)
DRT2-WD16CL(-1)
DRT2-MD16CL(-1)
Errors occurring in
Slaves with inputs
DRT2-ID08(-1)
DRT2-ID16(-1)
DRT2-MD16(-1)
DRT2-MD16S(-1)
DRT2-ID16TA(-1)
DRT2-MD16TA(-1)
DRT2-ID16ML(X)(-1)
DRT2-ID32ML(-1)
DRT2-MD32ML(-1)
DRT2-ID32B/BV(-1)
DRT2-MD32B/BV(-1)
DRT2-ID16SL/SLH(-1)
DRT2-ID32SL/SLH(-1)
DRT2-MD32SL/SLH(-1)
DRT2-HD16C(-1)
DRT2-ID08C(-1)
DRT2-ID04CL(-1)
DRT2-ID08CL(-1)
DRT2-HD16CL(-1)
DRT2-MD16CL(-1)
Errors occurring in
Slaves equipped with
the Sensor Discon-
nected Detection func-
tion
DRT2-HD16C(-1)
DRT2-ID08C(-1)
DRT2-ID16SLH(-1)
DRT2-ID32SLH(-1)
DRT2-MD32SLH
(-1)
Errors occurring in
Slaves equipped with
the external load short-
circuit detection function
DRT2-OD08C(-1)
DRT2-MD16S(-1)
DRT2-OD16SLH(-1)
462
Details
The outputs cannot be held
when a communications error
has occurred.
The outputs cannot be cleared
when a communications error
has occurred.
There is a delay in the input's
ON or OFF timing.
The Sensor Disconnected (Off-
wire) Detection Flag is going
ON for inputs that are not being
used.
A short-circuit was corrected
after being detected by the
external load short-circuit
detection function, but the Load
Shorted Flag does not go OFF.
Probable cause
The Slave's Output Hold/Clear
setting is set to clear outputs
when there is a communica-
tions error.
The Slave's Output Hold/Clear
setting is set to hold outputs
when there is a communica-
tions error.
An input delay may be set in
the input filter function.
The Sensor Disconnected
Detection function (Off-wire
Detection function) may not
be disabled for the inputs that
are not being used.
The function is set for manual
reset. (The default setting is
manual reset.)
Section 9-2
Remedy
Set the Slave's Output Hold/
Clear setting to hold outputs
when there is a communica-
tions error.
Set the Slave's Output Hold/
Clear setting to clear outputs
when there is a communica-
tions error.
Either set the input filter value
to 0 or an appropriate non-
zero input filter value.
Disable the Sensor Discon-
nected Detection function
(Off-wire Detection function)
for inputs that are not being
used.
After correcting the short-cir-
cuit, turn the I/O power supply
OFF and then ON again.