KEYENCE DL-EP1 - Manual (Page 96)

5-2 Troubleshooting
5-4 - EtherNet/IP Compatible Network Unit DL-EP1 User’s Manual (IL) -
5
Ap
pe
ndi
x
„ Network status indicator (NS)
This indicator indicates whether the DL-EP1 is communicating correctly with
EtherNet/IP.
„ Sensor communication indicator (D-bus)
This indicator indicates whether the DL-EP1 is communicating correctly with the
sensor amplifier.
If an error occurs, you can identify the cause of the error by reading the error code
via cyclic communication or message communication.
"Error code list" (Page 3-13)
LED Status Condition Corrective Action
Green
Solid
One or more connections are
normally established.
If multiple connections are used, the DL-EP1 may
be unable to communicate with EtherNet/IP even if
the green LED is solid.
Flashing No connection is established. Check if the DL-EP1 is registered in the scanner.
Red
Solid
A duplicated IP address was
detected.
Check if the IP address setting is duplicated with the
IP address setting of the scanner or other adaptors.
Flashing
One or more connections have
timed out.
Locate the connections that have timed out and
check the power status and wiring of the
communication device.
Not lit
Power is not supplied to the
DL-EP1.
• Check if the power supply is correctly
connected.
• Check if the DL-EP1 is correctly connected to the
sensor amplifier.
The IP address is not assigned. Set the IP address.
LED
Status
Condition Corrective Action
Solid green The DL-EP1 is communicating correctly with
the sensor amplifier.
-
Flashing
green
After power-on, the DL-EP1 is now starting
up.
After it has started up, the DL-EP1 automatically shifts
to the normal status.
Solid red
The DL-EP1 could not communicate with the
sensor amplifier during its start-up.
(Error ID number/code: 00H/52 or 00H/55)
• Check if the DL-EP1 is correctly connected to the
sensor amplifier and turn on the power again.
• Check if an unsupported sensor amplifier is
connected to the DL-EP1 and turn on the power
again.
• Check if the number of connected sensor
amplifiers exceeds the maximum number of
connectable units.
• Check if there is an electrical noise source around
the DL-EP1.
If the error cannot be recovered after checking the
above, contact your nearest Keyence office.
An attempt to assign an ID number has
failed.
(Error ID number/code: 00H/51)
The DL-EP1 could not communicate
continuously with the sensor amplifier for
one second or longer.
(Error ID number/code: 00H/57)
A system error may have occurred in the
DL-EP1.
Flashing
red
Repetition
of 4
consecutive
flashes)
A current limitation error occurred.
(Error ID number/code: 00H/56)
Check the sensor amplifier configuration.
An unsupported sensor amplifier was
connected.
(Error ID number/code: 00H/53)
Unconnectable models are mixed. (Error ID
number/code: 00H/54)
Flashing
red
(Flashing at
fixed
intervals)
Sometimes the DL-EP1 cannot temporarily
communicate with the sensor amplifier.
(Error ID number/code: 00H/57)
Check if there is an electrical noise source around
the DL-EP1. (The error is automatically reset if the
cause is removed.)
Not lit Power is not supplied to the DL-EP1.
• Check if the DL-EP1 is correctly connected to the
sensor amplifier.
• Check if the power supply is correctly connected.